BAF7 Bent Axis Piston Motor - Power Management, …pub/@eaton/@hyd/documents/c… · BAF7 Bent Axis Piston Motor Flange & Gearbox Mounting, Fixed Displacement Peak Pressure 480 bar

BAF7 Bent Axis Piston MotorFlange & Gearbox Mounting, Fixed Displacement

Peak Pressure 480 bar (6960 psi) Displacement 055-063-075-090-108-125-160-180 cm3/r

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EATON BAF7 Bent Axis Piston Motor - Fixed Displacement E-MOPI-MC020-E September 20124

General Overview BAF7 ............................................................................................................................................................... 5

Specifications and Performance Technical Data ............................................................................................................................. 6

Model Code .................................................................................................................................................................................... 9

Dimensions

ISO Mounting Flange 055-063 ........................................................................................................................................ 11




SAE Mounting Flange 055-063 ....................................................................................................................................... 15




Motor Special Features .................................................................................................................................................. 19

General Overview BAF7 (Gearbox Version) ............................................................................................................................. 20

Specifications and Performance Technical Data (Gearbox Version) ............................................................................................. 21

Model Code (Gearbox Version) ..................................................................................................................................................... 23

Dimensions

2-Bolt Mounting Flange 055-063..................................................................................................................................... 24




Motor Special Features .................................................................................................................................................. 28

Valve Options .................................................................................................................................................................. 30

Application Information ............................................................................................................................................................. 34

Fluid and Filtration Guidelines ......................................................................................................................................... 34

Installation Guidelines ..................................................................................................................................................... 35

Table of Contents

EATON BAF7 Bent Axis Piston Motor - Fixed Displacement E-MOPI-MC020-E September 2012 5

Bent Axis Motor – BAF7

General Information - Features

BAF7 series units are a family of fixed displacement motors, bent axis piston design for operation in both open and closed circuit. The proven design incorporating the lens shaped valve plate, the high quality components and manufacturing techniques allow the BAF7 series units able to provide up to 430 bar [6235 psi] continuous and 480 bar [6960 psi] peak performance. Fully laboratory tested and field proven, these units provide maximum efficiency and long life. Heavy duty bearings permit high radial and axial loads. Versatile design includes a variety of port plate, shaft end and valve packages that will fit the BAF7 series units to any application, both industrial and mobile. BAF7 series units are available in both ISO and SAE versions.

Typical Applications:• Earth moving machines and construction equipment• Agricultural and forestry vehicles• Marine and off-shore equipment• Industrial conveying, mixing & other stationary in-plant uses


Hydraulic Fluids

See page 34 for fluid related information. Operating Pressure

The maximum permissible pressure on pressure ports is 430 bar [6235 psi] continuous and 480 bar [6960 psi] peak. If two motors are connected in series, total working pressure P1+P2 must be limited to 700 bar max. [10150 psi].

Case Drain Pressure

Maximum permissible case drain pressure is 10 bar [145 psi]. A higher pressure can damage the main shaft seal or reduce its life.

Output Shaft

The table below is a guide to determine maximum permis-sible loads. Values are calculated in such a way to assure at least 80% of the bearing operating life where no external load is applied. The published values are related to loads applied in the middle of shaft and in the least favourable direction.

Specifications and PerformanceTechnical Data

* Under Development

Displacement 055

Radial load (Fq max) N

[lbf] 9200(*) [2068]

Load N/bar [lbf/psi] 25

[0.375]

Axial pulling load (Fax max) N [lbf]

250 bar [3625 psi]

1920 [432]

350 bar [5075 psi]

2650 [596]

Axial pushing load (Fax max) )

< 100 bar [< 1450 psi]

800 [180]

> 100 bar [ > 1450 psi]

9 [0.135]

N [lbf]

N/bar [lbf/psi]

075

11500(*) [2587.5]

25.7 [0.386]

2300 [517.5]

3550 [798.75]

1000 [225]

12 [0.18]

108 125

13600(*) [3060]

15900(*) [3577.5]

35 [0.525]

37 [0.555]

2900 [652.5]

3300 [742.5]

4050 [911.25]

4550 [1023.7]

1250 [281.25]

1250 [281.25]

13 [0.195]

13 [0.195]

090

12900(*) [2902.5]

28.5 [0.428]

2800 [630]

3800 [855]

1000 [225]

12 [0.18]

063*

10300(*) [2317.5]

30 [0.45]

2150 [484]

2990 [673]

800 [180]

9 [0.135]

160 180*

18400(*) [4140]

20600(*) [4635]

41 [0.615]

45 [0.675]

3800 [855]

4050 [911.2]

5300 [1192.5]

5800 [1305]

1600 [360]

1600 [360]

17 [0.255]

17 [0.255]

(*)

Max permissibile radial force with “30” Output Shaft code (BAF7 055-063):

Fq max = 6500 N [1462.5 lbf]

Max permissibile radial force with “35” Output Shaft Code (BAF7 075-090):

Fq max = 6500 N [1462.5 lbf]


Fq max = 6500 N [1462.5 lbf]


Fq max = 6500 N [1462.5 lbf]


When an external side (radial) load is applied to the drive shaft, the bearing life will vary accordingly to the magnitude, location and direction of the load. The diagram shows how the bearing operating life varies versus the direction of the load. In the diagram 100% represents the bearing operating life where no external side load is applied to the drive shaft. The optimum direction is dependent on which port is pres-surised.

The bearing operating life increases up to 30% when the load is applied in certain directions and the maximum increase is dependent on the operating pressure and the nominal size of the unit. When considering the permissible axial force, the force - transfer direction must be taken in account:

• Pushing axial loads increase the bearing life.

• Pulling axial loads reduce the bearing life (if possible pulling axial loads should be avoided).

Seals

Seals used on BAF7 series are of FKM (Fluoroelastomer). For applications with special fluids, contact Eaton.

Minimum rotating speed:

No limit to minimum speed; if uniformity of rotation is re-quired, speed must not be less than 50 rpm. For lower speed operation, contact Eaton.

Installation

Mounting attitude for BAF7 units is unrestricted. These Bent Axis piston units have separate ports and drain chambers and so must always be drained.

Flange-mounted valves

Flange-mounted valves are available for motors both in open and closed loop.

Flushing valves

The motors can be equipped with flushing valves. To mount the flushing valve on motors, it is necessary to use a special port cover.

Relation between direction of rotation and direction of flow

The relation between direction of rotation of shaft and direction of flow in BAF7 piston units is shown in the diagram below.


B/4

axial piston

R

axial pistonaxial piston

R

Albero di uscita: La tabella è una guida per la determinazione dei carichi accettabili. I valori sono determinati in modo da garantire una vita almeno pari all'80% della vita dei cuscinetti in assenza di carico esterno. I valori sono riferiti a carichi applicati nella mezzeria dell'albero e nella direzione più sfavorevole.

Output shaft: Table is a guide to determine max. permissible loads. Values are calculated in such a way to assure at least 80% of the bearing operating life where no external load is applied. The published values are related to loads applied in the middle of shaft and in the least favourable direction.

Cilindrata / Displacement 055

Forza radiale (Fq max)Radial load (Fq max)

N [lbf] 9200(*)

[2068]

Carico Load

N/bar [lbf/psi] 25

[0.375]

Forza assiale tirante (Fax max)Axial pulling load (Fax max)

N [lbf]

250 bar [3625 psi]

1920 [432]

350 bar [5075 psi]

2650 [596]

Forza assiale spingente (Fax max)Axial pushing load (Fax max)

< 100 bar [< 1450 psi]

800 [180]

> 100 bar [ > 1450 psi]

9 [0.135]

N [lbf]

N/bar [lbf/psi]

075

11500(*) [2587.5]

25.7 [0.386]

2300 [517.5]

3550 [798.75]

1000 [225]

12 [0.18]

108 125

13600(*) [3060]

15900(*) [3577.5]

35 [0.525]

37 [0.555]

2900 [652.5]

3300 [742.5]

4050 [911.25]

4550 [1023.7]

1250 [281.25]

1250 [281.25]

13 [0.195]

13 [0.195]

090

12900(*) [2902.5]

28.5 [0.428]

2800 [630]

3800 [855]

1000 [225]

12 [0.18]

063

10300(*) [2317.5]

30 [0.45]

2150 [484]

2990 [673]

800 [180]

9 [0.135]

160 180

18400(*) [4140]

20600(*) [4635]

41 [0.615]

45 [0.675]

3800 [855]

4050 [911.2]

5300 [1192.5]

5800 [1305]

1600 [360]

1600 [360]

17 [0.255]

17 [0.255]

Quando un carico radiale esterno è applicato all'albero la vita dei cuscinetti è determinata dalla intensità, dalla posizione e dalla direzione della forza applicata. Il diagramma mostra come la vita dei cuscinetti varia con la direzione del carico. Nel diagramma il valore 100% rappresenta la vita dei cuscinetti in assenza di carico esterno. La direzione ottimale del carico dipende dalla bocca dell'unità a pistoni in pressione.

When an external side (radial) load is applied to the drive shaft, the bearing life will vary accordingly to the magnitude, location and direction of the load. The diagram shows how the bearing operating life varies versus the direction of the load. In the diagram 100% represents the bearing operating life where no external side load is applied to the drive shaft. The optimum direction is dependent on which port is pressurised.

Il diagramma mostra che per determinate direzioni di carico è possibile avere incrementi di durata della vita dei cuscinetti anche del 30%. L'aumento massimo di durata dipende dalla pressione di esercizio e dalla dimensione nominale dell'unità a pistoni. Nel considerare la forza assiale permessa bisogna fare attenzione alla direzione di trasferimento della forza: • Carichi assiali spingenti incrementano la vita dei cuscinetti. • Carichi assiali tiranti riducono la vita dei cuscinetti (se

possibile i carichi tiranti devono essere evitati).

The bearing operating life increases up to 30% when the load is applied with some peculiar directions and the maximum increase is dependent on the operating pressure and the nominal size of the unit. When considering the permissible axial force, the force - transfer direction must be taken in account: • Pushing axial loads increase the bearing life. • Pulling axial loads reduce the bearing life (if possible pulling

axial loads should be avoided) .

(*) Massima forza radiale permessa per albero SAI (SH11C 055-063): Fq max = 6500 N Massima forza radiale permessa per albero SAM (SH11C 075-090): Fq max = 6500 N Massima forza radiale permessa per albero SAO (SH11C 108-125): Fq max = 6500 N Massima forza radiale permessa per albero SAP (SH11C 160-180): Fq max = 6500 N

(*) Max permissibile radial force with SAI shaft (SH11C 055-063): Fq max = 6500 N [1462.5 lbf] Max permissibile radial force with SAM shaft (SH11C 075-090): Fq max = 6500 N [1462.5 lbf] Max permissibile radial force with SAO shaft (SH11C 108-125): Fq max = 6500 N [1462.5 lbf] Max permissibile radial force with SAP shaft (SH11C 160-180): Fq max = 6500 N [1462.5 lbf]

B/4

axial piston

R


R

Albero di uscita: La tabella è una guida per la determinazione dei carichi accettabili. I valori sono determinati in modo da garantire una vita almeno pari all'80% della vita dei cuscinetti in assenza di carico esterno. I valori sono riferiti a carichi applicati nella mezzeria dell'albero e nella direzione più sfavorevole.

Output shaft: Table is a guide to determine max. permissible loads. Values are calculated in such a way to assure at least 80% of the bearing operating life where no external load is applied. The published values are related to loads applied in the middle of shaft and in the least favourable direction.

Cilindrata / Displacement 055

Forza radiale (Fq max)Radial load (Fq max)

N [lbf] 9200(*)

[2068]

Carico Load

N/bar [lbf/psi] 25

[0.375]

Forza assiale tirante (Fax max)Axial pulling load (Fax max)

N [lbf]

250 bar [3625 psi]

1920 [432]

350 bar [5075 psi]

2650 [596]

Forza assiale spingente (Fax max)Axial pushing load (Fax max)

< 100 bar [< 1450 psi]

800 [180]

> 100 bar [ > 1450 psi]

9 [0.135]

N [lbf]

N/bar [lbf/psi]

075

11500(*) [2587.5]

25.7 [0.386]

2300 [517.5]

3550 [798.75]

1000 [225]

12 [0.18]

108 125

13600(*) [3060]

15900(*) [3577.5]

35 [0.525]

37 [0.555]

2900 [652.5]

3300 [742.5]

4050 [911.25]

4550 [1023.7]

1250 [281.25]

1250 [281.25]

13 [0.195]

13 [0.195]

090

12900(*) [2902.5]

28.5 [0.428]

2800 [630]

3800 [855]

1000 [225]

12 [0.18]

063

10300(*) [2317.5]

30 [0.45]

2150 [484]

2990 [673]

800 [180]

9 [0.135]

160 180

18400(*) [4140]

20600(*) [4635]

41 [0.615]

45 [0.675]

3800 [855]

4050 [911.2]

5300 [1192.5]

5800 [1305]

1600 [360]

1600 [360]

17 [0.255]

17 [0.255]

Quando un carico radiale esterno è applicato all'albero la vita dei cuscinetti è determinata dalla intensità, dalla posizione e dalla direzione della forza applicata. Il diagramma mostra come la vita dei cuscinetti varia con la direzione del carico. Nel diagramma il valore 100% rappresenta la vita dei cuscinetti in assenza di carico esterno. La direzione ottimale del carico dipende dalla bocca dell'unità a pistoni in pressione.

When an external side (radial) load is applied to the drive shaft, the bearing life will vary accordingly to the magnitude, location and direction of the load. The diagram shows how the bearing operating life varies versus the direction of the load. In the diagram 100% represents the bearing operating life where no external side load is applied to the drive shaft. The optimum direction is dependent on which port is pressurised.

Il diagramma mostra che per determinate direzioni di carico è possibile avere incrementi di durata della vita dei cuscinetti anche del 30%. L'aumento massimo di durata dipende dalla pressione di esercizio e dalla dimensione nominale dell'unità a pistoni. Nel considerare la forza assiale permessa bisogna fare attenzione alla direzione di trasferimento della forza: • Carichi assiali spingenti incrementano la vita dei cuscinetti. • Carichi assiali tiranti riducono la vita dei cuscinetti (se

possibile i carichi tiranti devono essere evitati).

The bearing operating life increases up to 30% when the load is applied with some peculiar directions and the maximum increase is dependent on the operating pressure and the nominal size of the unit. When considering the permissible axial force, the force - transfer direction must be taken in account: • Pushing axial loads increase the bearing life. • Pulling axial loads reduce the bearing life (if possible pulling

axial loads should be avoided) .

(*) Massima forza radiale permessa per albero SAI (SH11C 055-063): Fq max = 6500 N Massima forza radiale permessa per albero SAM (SH11C 075-090): Fq max = 6500 N Massima forza radiale permessa per albero SAO (SH11C 108-125): Fq max = 6500 N Massima forza radiale permessa per albero SAP (SH11C 160-180): Fq max = 6500 N

(*) Max permissibile radial force with SAI shaft (SH11C 055-063): Fq max = 6500 N [1462.5 lbf] Max permissibile radial force with SAM shaft (SH11C 075-090): Fq max = 6500 N [1462.5 lbf] Max permissibile radial force with SAO shaft (SH11C 108-125): Fq max = 6500 N [1462.5 lbf] Max permissibile radial force with SAP shaft (SH11C 160-180): Fq max = 6500 N [1462.5 lbf]

B/5

axial piston

R


R

Guarnizioni:Le guarnizioni utilizzate sulle unità a pistoni assiali SH11C sono in FKM (Fluoroelastomer). Nel caso di impiego di fluidi speciali contattare la S.A.M. Hydraulik S.p.A.

Seals:Seals used on SH11C series are of FKM (Fluoroelastomer). In case of use of special fluids, contact S.A.M. Hydraulik S.p.A.

Regime minimo di rotazione: Nessun limite minimo di velocità; se richiesta l’uniformità di rotazione, la velocità minima non può essere minore di 50 rpm. Per applicazioni particolari contattare la S.A.M. Hydraulik S.p.A.

Minimum rotating speed: No limit to Minimum speed; if uniformity of rotation is required, speed must not be less than 50 rpm. In case of use of special applications, contact S.A.M. Hydraulik S.p.A

Installazione:I motori possono essere installati in qualsiasi direzione e posizione. Queste unità a pistoni hanno le bocche separate dalla carcassa e devono essere obbligatoriamente drenate. Nel caso delle pompe l'installazione con albero verticale e al di sopra del serbatoio comporta alcune limitazioni. Per maggiori dettagli consultare nel Catalogo Informazioni Generali la sezione “Norme generali di installazione”.

Installation: SH11C series motors can be installed in every position or direction. These axial piston units have separate ports and drain chambers and so must be always drained. As for pumps, installation of the unit with shaft in vertical position and above the tank involves some limitations. For further details see on the General Information Catalogue, the section “General installation guidelines”.

Valvole flangiabili: Le valvole sono disponibili per i motori sia in circuito aperto sia chiuso. Per maggiori informazioni consultare il catalogo Valvole Assiali.

Flangeable valves: Flangeable valves are available for motors both in open and closed loop. For more information see the catalogue Axial Valves.

Relation between direction of rotation and direction of flow: The relation between direction of rotation of shaft and direction of flow in SH11C piston units is shown in the picture below. Note: for pump operation, the direction of rotation is determined by the port plate mounting position. Usually, in order to change direction of rotation of a pump, port plate has to be removed, turned of 180° and reassembled.

Relazione tra senso di rotazione e direzione di flusso: La relazione tra il senso di rotazione dell’albero dell’unità a pistoni SH11C e la direzione del flusso del fluido è illustrata in figura.Nota: nel caso di impiego come pompa è la posizione di montaggio del coperchio a determinare il senso di rotazione. Normalmente l’inversione del senso di rotazione di una pompa SH11C comporta lo smontaggio del coperchio ed il suo rimontaggio ruotato di 180°.

Valvole di lavaggio: I motori possono essere forniti con la valvola di lavaggio. Per il montaggio diretto della valvola di lavaggio sui motori è necessario utilizzare un coperchio speciale. Per maggiori informazioni consultare il catalogo Valvole Assiali.

Flushing valves: The motors can be equipped with flushing valves. The mount the flushing valve on motors, it is necessary to use a special port cover. For more information see the catalogue Axial Valves.

Motore reversibile Reversible motor

Motore reversibile Reversible motor

Pompa rotazione destra CW rotating pump

Pompa rotazione sinistra CCW rotating pump

Op

erat

ing

Lif

e

Load Direction Ø


Technical Data

Size 055 063 075 090 108 125 160 180

Displacement Vg cm3/rev 56.35 63.26 77.82 86.23 108.4 124.8 163.9 178.1 [in3/rev] [3.437] [3.859] [4.747] [5.26] [6.612] [7.613] [9.998] [10.864]

Max. pressure cont. pnom bar 430 430 430 430 430 430 430 430 [psi] [6235] [6235] [6235] [6235] [6235] [6235] [6235] [6235] peak pmax bar 480 480 480 480 480 480 480 480 [psi] [6960] [6960] [6960] [6960] [6960] [6960] [6960] [6960]

Max. speed Motor (cont.) n0 max rpm 5000 5000 4500 4500 4000 4000 3600 3600

Max. flow Motor qmax L/min 282 316 350 388 433 500 590 641 [U.S. gpm] [74.45] [83.42] [92.4] [102.5] [114.31] [132] [155.76] [169.22]

Max. power Motor Pmax kW 202 226 251 278 310 358 423 459 at pnom [hp] [270.68] [302.84] [336.34] [372] [415.4] [479.72] [566.82] [615.06]

Torque costant Tk Nm/bar 0.9 1 1.2 1.4 1.7 2 2.6 2.8 [Ibf·ft/psi] [0.045] [0.05] [0.06] [0.07] [0.085] [0.1] [0.13] [0.14]

Max. torque cont. (pnom) Tnom Nm 386 433 533 590 742 855 1122 1219 [Ibf·ft] [284.48] [319.12] [392.82] [435.13] [546.85] [630.13] [826.91] [898.40] peak (pmax) Tmax Nm 431 484 595 659 829 954 1253 1361 [Ibf·ft] [317.65] [356.71] [438.51] [486.05] [610.97] [703.10] [923.46] [1003.06]

Moment of inertia (3) J kg·m2 0.004 0.004 0.007 0.007 0.012 0.012 0.022 0.022 [Ibf·ft2] [0.094] [0.094] [0.1645] [0.1645] [0.2820] [0.2820] [0.5170] [0.5170]

Weight (3) m kg 19 19 23.7 23.7 35 35 48 48 [Ibs] [41.876] [41.876] [52.23] [52.23] [77.14] [77.14] [105.79] [105.79]

External drain flow (4) qd L/min 1.2 1.2 2.5 2.5 3 3 3 3 [U.S. gpm] [0.317] [0.317] [0.66] [0.66] [0.79] [0.79] [0.79] [0.79]

* *

* Under Development


Model Code

Code Title BAF7 – Fixed displacement bent axis piston motor

Displacement 055 – 56.35 cm3/r [3.437 in3/r] 063 – 63.26 cm3/r [3.859 in3/r]* 075 – 77.82 cm3/r [4.747 in3/r] 090 – 86.23 cm3/r [5.26 in3/r] 108 – 108.4 cm3/r [6.612 in3/r] 125 – 124.8 cm3/r [7.613 in3/r] 160 – 163.9 cm3/r [9.968 in3/r] 180 – 178.1 cm3/r [10.864 in3/r]*

Mounting Type 3 – ISO 125 mm (055 and 063 Displacement Code) 4 – ISO 140 mm (075 and 090 Displacement Code) 5 – ISO 160 mm (108 and 125 Displacement Code) 6 – ISO 180 mm (160 and 180 Displacement Code) C – SAE C 4 Bolt (055,063,075, and 090 Displacement Code) D – SAE D 4 Bolt (108, 125, 160 and 180 Displacement Code)

Output Shaft 03 – 30mm straight keyed shaft (055 and 063 displacement code, 3 mount code) 04 – 31.75mm [1.25 in] straight keyed shaft (055 and 063 dis-placement code, C mount code) 05 – 40mm straight keyed shaft (075 and 090 displacement code, 4 mount code) 08 – 40mm straight keyed shaft (108 and 125 displacement code, 5 mount code) 10 – 44.45mm straight keyed shaft(108,125,160 and 180 dis-placement code, d mount code) 06 – 45mm straight keyed shaft (108-125 displacement code, 5 mount code) 11 – 45mm straight keyed shaft (160-180 displacement code, 6 mount code) 07 – 50mm straight keyed shaft (160-180 displacement code, 6 mount code)

23 – 23 tooth splined shaft 16/32 dp (108, and 125 displacement code, D mount code) 13 – 13 tooth splined shaft 8/16 dp (108,125, 160 and 180 dis-placement code, D mount code) 14 – 14 tooth splined shaft 12/24 dp (055, 063,075 and 090 dis-placement code, C mount code) 30 – 14 tooth W30 splined shaft per DIN 5480 (055 and 063 dis-placement code, 3 mount code) 35 – 16 tooth W35 splined shaft per DIN 5480 (055,063,075 and 090 displacement code,3 and 4 mount code) 40 – 18 tooth W40 splined shaft per DIN 5480 (075,090, 108 and 125 displacement code, 4 and 5 mount code) 45 – 21 tooth W45 splined shaft per DIN 5480 (108 and125 dis-placement code, 5 and 6 mount code) 50 – 24 tooth W50 splined shaft per DIN 5480 (160-180 displace-ment code, 6 mount code)

Main Ports D – Rear ports - G 1 1/2 BSPP O-ring port (108 and 125 displace-ment code, 5 mount code) E – Opposite side ports - 3/4 code 62 split flange with M10 threads (055 and 063 displace-ment code, 3 mount code) A – Opposite side and rear ports G 1” BSPP (055-063 displace-ment code, 3 mount code) B – Rear ports G 1” BSPP (055-063 displacement code, 3 mount code) C – Opposite side G 1” BSPP (055-063 displacement code, 3 mount code) F – Opposite side ports - 1 code 62 SAE split flange with M12 bolts ( 075, and 090 displace-ment code, 4 mount code ) G – Opposite side ports - 1 1/4 code 62 split flange with M14 threads (108,125, 160 and 180 displacement code,5 and 6 mount code)

J – Same side ports bottom - 3/4 code 62 with M10 threads (055 and 063 displacement code, 3 mount code) H – Same side ports bottom -3/4 code 62 with 7/16-14 unc thds (055 and 063 displacement code, C mount code) P – Rear ports-3/4 code 62 with M10 threads (055 and 063 dis-placement code, 3 mount code) R – Rear ports-3/4 code 62 with 7/16-14 UNC threads (055 and 063 displacement code, C mount code) K – Same side ports bottom - 1 code 62 with M12 threads (075 and 090 displacement code,4 mount code) S – Same side ports bottom - 1 code 62 with 7/16-14 threads (075 and 090 displacement code,C mount code) L – Opposite side ports - 3/4 code 62 SAE split flange with 7/16-14 UNC thds (055 and 063 displacement code,C mount code) M – Opposite side ports - 1 code 62 SAE split flange with 7/16-14 UNC thds bolts ( 075, and 090 displacement code,C mount code) T – Rear ports- 1 code 62 with M12 threads (075 and 090 dis-placement code, 4 mount code) U – Rear ports- 1 code 62 with 7/16-14 threads (075 and 090 displacement code, C mount code) N – Opposite side ports - 1 1/4 code 62 SAE split flange 1/2-13 UNC thds(108,125,160 and 180 displacement code, D mount code) V – Rear ports - 1 1/4 code 62 split flange with M14 threads (108,125, 160 and 180 displace-ment code,5 and 6 mount code) W – Rear ports - 1 1/4 code 62 sae split flange 1/2-13 UNC thds(108,125,160 and 180 dis-placement code, D mount code)

1 – Same side ports bottom - 1 1/4 code 62 split flange with M14 threads (108,125, 160 and 180 displacement code,5 and 6 mount code) 2 – Same side ports bottom - 1 1/4 code 62 SAE split flange 1/2-13 UNC thds(108,125,160 and 180 displacement code, D mount code)

Direction of Rotation 0 – Reversible

Seals V – Fluorocarbon

Valves 0 – No optional valving 3 – VCD/M pilot assisted over-centre valve 055, 063, 075 and 090 displacement code, available with same side bottom ports and rear ports , 3 and 4 mount code 1 – VCD/1 pilot assisted overcentre valve 055, 063, 075, 090,108,125,160 and 180 displacement code, available with opposite side ports, 3, 4, 5, 6 mount code 2 – VCD/2 pilot assisted overcen-tre valve 075, 090,108,125,160 and 180 displacement code, available with opposite side ports 4 – VCR1 D/AF double acting overcentre valve 055, 063, 075 and 090 displacement code, available with same side bottom ports and rear ports code

Control 00 – No control - fixed displace-ment

Control Pressure 0 – None - fixed displacement

Control Orifice 0 – None

BAF7 055 3 30 E 0 B 0 00 0 0 0 00 0 00 0 00 A 0 A

1,2,3,4

1,2,3,4

5,6,7

5,6,7

9,10

9,10

15,16

15,16

20,21 23,24 26,278

8

11

11

12

12

13

13

14

14

17

17

18

18

19 22 25 28 29 30

* Under Development


Model Code

BAF7 055 3 30 E 0 B 0 00 0 0 0 00 0 00 0 00 A 0 A

1,2,3,4 5,6,7 9,10 15,16 20,21

20,21

23,24

23,24

26,27

26,27

8 11 12 13 14 17 18 19 22

22

25 28 29 30

Control Special Features 0 – None

Min/Max Displacement 00 – Fixed displacement per model code positions 4,5,6

Valve Features 0 – Feature not necessary 1 – Setting range 30 to 350 bar [435 to 5075 psi] [piloting ratio 6.2:1] “VCR1” valve code, valve not set, user to set valve per requirement 2 – Setting range 0 to 350 bar [0 to 5075 psi] [piloting ratio 2.9:1] Control of rotation CW “VCD1” valve code, valve not set, user to set valve per requirement 6 – Setting range 0 to 350 bar [0 to 5075 psi] [piloting ratio 2.9:1] Control of rotation CCW “VCD1” valve code, valve not set, user to set valve per requirement 4 – Setting range 30 to 350 bar [435 to 5075 psi] [piloting ratio 6.2:1] Control of rotation CW “VCDM” valve code, valve not set, user to set valve per require-ment 5 – Setting range 30 to 350 bar [435 to 5075 psi] [piloting ratio 6.2:1] Control of rotation CCW “VCDM” valve code, valve not set, user to set valve per require-ment 3 – Setting range 250 to 500 bar [3625 to 7250 psi][piloting ratio 13:1] control of rotation CW “VCD2” valve code,valve not set, user to set valve per requirement 7 – Setting range 30 to 350 bar [435 to 5075 psi][piloting ratio 6.2:1] Control of rotation CCW“VCD2” valve code,valve not set, user to set valve per requirement

Flushing Valves 00 – None 06 – VSC/F flushing valve -6 L/min [1.58 U.S gpm] only avail-able with opposite side ports and same side ports bottom configurations 09 – VSC/F flushing valve -10.5 L/min [2.77 U.S gpm] only avail-able with opposite side ports and same side ports bottom configurations 15 – VSC/F flushing valve -15 L/min [3.96 U.S gpm] only avail-able with opposite side ports and same side ports bottom configurations 21 – VSC/F flushing valve -20 L/min [5.28 U.S gpm only avail-able with opposite side ports and same side ports bottom configurations

Additional Features 0 – No additional features

Motor Special Features 00 – None 01 – SAE version with ISO ports 05 – High pressure shaft seal 06 – Motor with speed sensor

Paint 0 – No paint A – Primer blue

Identification 0 – Eaton standard identification

Design Code A – A

19

25

29

30

28


Dimensions ISO 4-Bolt Flange BAF7 055-063 “3” Mount Code

S1, S2: Drain ports (1 plugged) - G 1/2 (BSPP) A, B: Service line ports R: Air bleed (plugged) - G 1/8 (BSPP)

“E” Port Code

“P” Port Code

“03” Output Shaft Code Parallel Keyed Shaft

“A” Port Code

“J” Port Code

“35” Output Shaft Code Splined Shaft





“F” Port Code

“K” Port Code

“T” Port Code







“G” Port Code

“V” Port Code

“D” Port Code

“1” Port Code








“G” Port Code

“1” Port Code




“50” Oustput Shaft Code Splined Shaft

“V” Port Code


Dimensions SAE C 4-Bolt Flange BAF7 055-063 “C” Mount Code

S1, S2: Drain ports (1 plugged) - 1” 1/16-12 UN 2B A, B: Service line ports R: Air bleed (plugged) - 7/16”-20 UNF

“L” Port Code

“H” Port Code



“R” Port Code


Dimensions SAE C 4-Bolt Flange BAF7 075-090 “C” Mount Code


“M” Port Code

“S” Port Code


“U” Port Code


Dimensions SAE D 4-Bolt Flange 108-125 “D” Mount Code


“N” Port Code

“2” Port Code

“10” Output Shaft Code “13” Output Shaft Code “23” Output Shaft Code

“W” Port Code


Dimensions SAE C 4-Bolt Flange BAF7 160-180 “D” Mount Code


“N” Port Code

“2” Port Code



“W” Port Code


Motor Special Features

Output signal electronic tacho

The sensor can be assembled only at S1 drain port

Number of pulses per revolution = 14 Inductive principle Output current PNP Voltage 10-65 V d.c. Max load 300 mA Max frequency 10000 Hz Temperature range -25°C +85°C Enclosure IP 67 Available versions: • Sensor with 2 metres three wires cable (cod. 424.0050.0000)

Opposite Side Ports Same Side Bottom Ports

055-063 075-090 108-125 160-180 055-063 075-090 108-125 160-180 “3” Mount “4” Mount “5” Mount “6” mount “C” Mount “C” Mount “D” Mount “D” Mount

A 41.7 37.5 41.9 42.5 41.7 37 42.9 42.5 mm [in] [1.64] [1.47] [1.65] [1.67] [1.64] [1.45] [1.69] [1.67]

B 161.2 177 207.4 222.8 184.8 200.8 240.8 254.9 mm [in] [6.35] [6.99] [8.16] [8.77] [7.27] [7.87] [9.48] [10.03]

055-063 075-090 108-125 160-180 055-063 075-090 108-125 160-180 “3” Mount “4” Mount “5” Mount “6” mount “C” Mount “C” Mount “D” Mount “D” Mount

A Opp Side ports 245.7 259.4 294.3 319.6 269.8 283.5 326.4 351.7 mm [in] [9.67] [10.21] [11.58] [12.58] [10.62] [11.16] [12.85] [13.85]

B Opp side Ports 152.8 159.1 179.9 199.1 152.8 159.1 179.8 199.1 mm [in] [6.01] [6.26] [7.08] [7.84] [6.01] [6.26] [7.08] [7.84]

A Same Side 239.2 258.8 298.8 313.2 263.3 282.9 330.8 345.3 mm [in] Bottom Ports [9.41] [10.18] [11.76] [12.33] [10.36] [11.13] [13.02] [13.59]

B Same Side 193.6 205.2 218.2 231.7 193.6 205.2 218.2 231.7 mm [in] Bottom Ports 193.6 [8.08] [8.59] [9.12] [7.62] [8.08] [8.59] [9.12]


BAF7 (Gearbox Version)

General Information - Features

BAF7 (Gearbox Version) series are a family of fixed displacement motors, bent axis piston design for operation in both open and closed circuit. BAF7 (Gearbox Version) series motors are mainly intended for installation in mechanical gearboxes such as track drive and winches gear boxes. The proven design incorporating the lens shaped valve plate, the high quality components and manufactur-ing tecniques make the BAF7 (Gearbox Version) series motors able to provide up to 430 bar [6235 psi] continuous and 480 bar [6960 psi] peak performance. Laboratory tested and field proven, these motors provide maximum efficiency and long life. Heavy duty bear-ings permit high radial and axial loads. Flange-mounted valves, both for open and closed circuit, enable BAF7 (Gearbox Version) series motors to meet the requirements of various types of applications.


Hydraulic fluidsSee page 34 for fluid related information

Operating pressureThe maximum permissible pressure on pressure ports is 430 bar [6235 psi] continuous and 480 bar [6960 psi] peak. If two motors are connected in series, total working pressure P1+P2 must be limited to 700 bar max. [10150 psi].

Case drain pressureThe service life of the shaft seal is influenced by the speed of rotation of the motor and by case pressure. It’s recom-mended not to exceed the value of 10 bar [145 psi], at reduced speed please see the diagram. Instantaneous pres-sure spikes (t<0.1 sec) up to 15 bar [217.5 psi] are permitted.

Output shaftMain shaft has bearings that can bear both radial and axialloads. For permissible load values, see page 6.

SealsSeals used on standard BAF7 (GB) series axial piston motors are made by FKM seals (Fluoroelastomer). For Applications with special fluids, contact Eaton.

Minimum rotating speedNo limit to minimum speed; if uniformity of rotation is required, speed must not be less than 50 rpm. For lower speed operation, contact Eaton.

InstallationBAF7 (Gearbox) motors can be installed in various position and directions; however, installation in vertical position with shaft towards upper is not allowed. These axial piston units have separated ports and drain chambers and so must be always drained. For further detail see at General installationguidelines.

Flange-mounted valves:Flange-mounted valves are available for motors both in open and closed loop. For more information see the catalogue Axial Valves.

Flushing valvesThe motors can be equipped with flushing valves. The mount the flushing valve on motors, it is necessary to use a special port cover. For more information see the catalogue Axial Valves.

Relation between direction of rotation and direction offlowThe relation between direction of rotation of shaft anddirection of flow in BAF7 (Gearbox) piston units is shown in the picture below.


C/4axial piston

R


R

Guarnizioni:Le guarnizioni utilizzate sulle unità a pistoni assiali SH11CR standard sono in FKM (Fluoroelastomer). Nel caso di impiego di fluidi speciali contattare la S.A.M. Hydraulik S.p.A.

Seals:Seals used on standard SH11CR series axial piston motors are made by FKM seals (Fluoroelastomer). In case of use of special fluids, contact S.A.M. Hydraulik S.p.A.

Regime minimo di rotazione: Nessun limite minimo di velocità; se richiesta l’uniformità di rotazione, la velocità minima non può essere minore di 50 rpm. Per applicazioni particolari contattare la S.A.M. Hydraulik S.p.A.

Minimum rotating speed: No limit to Minimum speed; if uniformity of rotation is required, speed must not be less than 50 rpm. In case of use of special applications, contact S.A.M. Hydraulik S.p.A

Installazione:I motori SH11CR possono essere installati in diverse direzioni e posizioni; deve comunque essere evitata l’installazione verticale con albero rivolto verso l’alto. Queste unità a pistoni hanno le bocche separate dalla carcassa e devono essere obbligatoriamente drenate. Per maggiori dettagli consultare la sezione Norme generali di installazione.

Installation: SH11CR motors can be installed in various position and directions; however, installation in vertical position with shaft towards upper is not allowed. These axial piston units have separated ports and drain chambers and so must be always drained. For further detail see at General installation guidelines.

Valvole flangiabili: Le valvole sono disponibili per i motori sia in circuito aperto sia chiuso. Per maggiori informazioni consultare il catalogo Valvole Assiali.

Flangeable valves: Flangeable valves are available for motors both in open and closed loop. For more information see the catalogue Axial Valves.

Relation between direction of rotation and direction of flow: The relation between direction of rotation of shaft and direction of flow in SH11CR piston units is shown in the picture below.

Relazione tra senso di rotazione e direzione di flusso: La relazione tra il senso di rotazione dell’albero dell’unità a pistoni SH11CR e la direzione del flusso del fluido è illustrata in figura.

Valvole di lavaggio: I motori possono essere forniti con la valvola di lavaggio. Per il montaggio diretto della valvola di lavaggio sui motori è necessario utilizzare un coperchio speciale. Per maggiori informazioni consultare il catalogo Valvole Assiali.

Flushing valves: The motors can be equipped with flushing valves. The mount the flushing valve on motors, it is necessary to use a special port cover. For more information see the catalogue Axial Valves.

Albero di uscita: L'albero di uscita è in grado di sopportare sia carichi radiali sia assiali. Per i valori ammissibili dei carichi applicabili consultare nel Catalogo Informazioni Generali, la sezione “Durata dei cuscinetti delle unità a pistoni assiali”.

Output shaft: Main shaft has bearings that can bear both radial and axial loads. As for loads permissible values, see on the General Information Catalogue, the section “Service life of bearings for axial piston units”.


Technical Data

(Theoretical values, without considering nhm e nv; approximate values). Peak opera-tion must not exceed 1% of every minute. A simultaneous maximum pressure and maximum speed not recommended.

Notes: (1) Approximate values.(2) Average values at 250 bar [3600 psi] with mineral oil at 45°C [113°F] and 35 cSt of viscosity.

* Under Development

Size 055 063* 075 090 108 125 160* 180*

Displacement Vg cm3/rev [in3/rev]

56.35 [3.437]

63.26 [3.859]

77.82 [4.747]

86.23 [5.26]

108.4 [6.612]

124.8 [7.613]

163.9 [9.998]

178.1 [10.864]

Max. pressure cont. pnom bar

[psi] 430

[6235]

peak pmax bar [psi]

Max. speed nmax rpm 5000 5000 4500 4500 4000 4000 3600 3600

Max. flow qmax L/min

[U.S. gpm] 282

[74.45] 316

[83.42] 350

[92.4] 388

[102.5] 433

[114.31] 500

[132] 590

[155.76] 641

[169.22]

Max. power at pnom Pmax kW [hp]

202 [270.68]

226 [302.84]

251 [336.34]

278 [372]

310 [415.4]

358 [479.72]

423 [566.82]

459 [615.06]

Torque constant Tk Nm/bar

[Ibf·ft/psi] 0.9

[0.045] 1

[0.05] 1.2

[0.06] 1.4

[0.07] 1.7

[0.085] 2

[0.1] 2.6

[0.13] 2.8

[0.14]

Max. torque

cont. (pnom) Tnom Nm

[Ibf·ft] 386

[284.48] 433

[319.12] 533

[392.82] 590

[435.16] 742

[546.85] 855

[630.13] 1122

[826.91] 1291

[898.40] peak (pmax)

Tmax Nm

[Ibf·ft] 431

[317.65] 484

[356.71] 595

[438.51] 659

[486.05] 829

[610.97] 954

[703.10] 1253

[923.46] 1361

[1003.1]

Moment of inertia (1) J kg·m2 [Ibf·ft2]

0.004 [0.094]

0.004 [0.094]

0.007 [0.1645]

0.007 [0.1645]

0.012 [0.2820]

0.012 [0.2820]

0.022 [0.5170]

0.022 [0.5170]

Weight (1) m kg [Ibs]

19 [41.876]

19 [41.876]

23.7 [52.23]

23.7 [52.23]

35 [77.14]

35 [77.14]

48 [105.79]

48 [105.79]

Drainage flow (2) qd L/min

[U.S. gpm] 1.2

[0.317] 1.2

[0.317] 2.5

[0.66] 2.5

[0.66] 3

[0.79] 3

[0.79] 3

[0.79] 3

[0.79]

480 [6960]


Model Code

Code Title BAF7 – Fixed displacement bent axis piston motor

Displacement 055 – 56.35 cm3/r [3.437 in3/r] 063 – 63.26 cm3/r [3.859 in3/r] 075 – 77.82 cm3/r [4.747 in3/r] 090 – 86.23 cm3/r [5.26 in3/r] 108 – 108.4 cm3/r [6.612 in3/r] 125 – 124.8 cm3/r [7.613 in3/r] 160 – 163.9 cm3/r [9.968 in3/r] 180 – 178.1 cm3/r [10.864 in3/r]

Mounting Type U – Gearbox 2-Bolt hub dia 160mm (055 and 063 displace-ment code) V – Gearbox 2-Bolt hub dia 190mm (075 and 090 displace-ment code) W – Gearbox 2-Bolt hub dia 200mm (108,125,160 and 180 displacement code)

Output Shaft 30 – 14 tooth W30 splined shaft per DIN 5480 (055 and 063 dis-placement code, U mount code) 35 – 16 tooth W35 splined shaft per DIN 5480 (055,063,075 and 090 displacement code, U and V mount code) 40 – 18 tooth W40 splined shaft per DIN 5480 (075,090, 108 and 125 displacement code, V and W mount code) 45 – 21 tooth W45 splined shaft per DIN 5480 (108 and125 dis-placement code, W mount code) 50 – 24 tooth W50 splined shaft per DIN 5480 (160-180 displace-ment code, W mount code)*

Main Ports E – Opposite side ports - 3/4 code 62 split flange with M10 threads (055 and 063 displace-ment code, U mount code) F – Opposite side ports - 1 code 62 SAE split flange with M12

bolts ( 075, and 090 displace-ment code, V mount code ) G – Opposite side ports - 1 1/4 code 62 split flange with M14 threads (108,125, 160 and 180 displacement code, W mount code) J – Same side ports bottom - 3/4 code 62 with M10 threads (055 and 063 displacement code, U mount code) K – Same side ports bottom - 1 code 62 with M12 threads (075 and 090 displacement code, V mount code) 1 – Same side ports bottom- 1 1/4 code 62 split flange with M14 threads (108,125, 160 and 180 displacement code,W mount code)

Direction of Rotation 0 – Reversible

Seals V – Fluorocarbon

Valves 0 – No optional valving 3 – VCD/M pilot assisted over-centre valve 055, 063, 075 and 090 displacement code, available with same side bottom ports and rear ports , U and V mount code 1 – VCD/1 pilot assisted overcentre valve 055, 063, 075, 090,108,125,160 and 180 displacement code, available with opposite side ports, U, V, W mount code 2 – VCD/2 pilot assisted overcen-tre valve 075, 090,108,125,160 and 180 displacement code, available with opposite side ports U, V, W mount code 4 – VCR1 D/AF double acting overcentre valve 055, 063, 075 and 090 displacement code, available with same side bottom ports and U and V mount code

Control 00 – No control - fixed displace-ment

Control Pressure 0 – None - fixed displacement

Control Orfice 0 – None

Control Special Features 0 – None

Min/Max Displacement 00 – Fixed displacement per model code positions 4,5,6

Valves Feature 0 – Feature not necessary 1 – Setting range 30 to 350 bar [435 to 5075 psi][piloting ratio 6.2:1] “VCR1” valve code, valve not set, user to set valve per requirement 2 – Setting range 0 to 350 bar [0 to 5075 psi][piloting ratio 2.9:1] Control of rotation CW “VCD1” valve code, valve not set, user to set valve per requirement 6 – Setting range 0 to 350 bar [0 to 5075 psi][piloting ratio 2.9:1] Control of rotation CCW “VCD1” valve code, valve not set, user to set valve per requirement 4 – Setting range 30 to 350 bar [435 to 5075 psi][piloting ratio 6.2:1] Control of rotation CW “VCDM” valve code, valve not set, user to set valve per require-ment 5 – Setting range 30 to 350 bar [435 to 5075 psi][piloting ratio 6.2:1] Control of rotation CCW “VCDM” valve code, valve not set, user to set valve per require-ment 3 – Setting range 250 to 500 bar [3625 to 7250 psi][piloting ratio 13:1] control of rotation CW “VCD2” valve code,valve not set, user to set valve per

requirement 7 – Setting range 30 to 350 bar [435 to 5075 psi][piloting ratio 6.2:1] Control of rotation CCW“VCD2” valve code,valve not set, user to set valve per requirement

Flushing Valves 00 – None 06 – VSC/F flushing valve -6 L/min [1.58 U.S gpm] only avail-able with opposite side ports and same side ports bottom configurations 09 – VSC/F flushing valve -10.5 L/min [2.77 U.S gpm] only avail-able with opposite side ports and same side ports bottom configurations 15 – VSC/F flushing valve -15 L/min [3.96 U.S gpm] only avail-able with opposite side ports and same side ports bottom configurations 21 – VSC/F flushing valve -20 L/min [5.28 U.S gpm only avail-able with opposite side ports and same side ports bottom configurations

Additional Features 0 – No additional features

Motor Special Features 00 – None 04 – Drain plugs reversed 06 – Motor with speed sensor

Paint 0 – No paint A – Primer blue

Identification 0 – Eaton standard identification

Design Code A – A

BAF7 055 U 30 E 0 B 0 00 0 0 0 00 0 00 0 00 A 0 A

1,2,3,4

1,2,3,4

5,6,7

5,6,7

9,10

9,10

15,16 20,21 23,24 26,278

8

11

11 12 13 14 17 18 19 22 25 28 29 30

12

13

14

15,16

17

18

19

20,21

22

23,24

25

26,27

28

29

30

* Under Development

*

**


055-063

Maximum working pressure for 063 displacement: 300 bar [4350 psi]

Dimensions 2-Bolt Flange BAF7(GB) 055-063 “U” Mount Code

S1, S2: Drain ports - G 1/2 (BSPP) A, B: Service line ports

“J” Port Code

“E” Port Code

“30” Output Shaft Code Splined Shaft “35” Output Shaft Code Splined Shaft


SH11CR 075-090


Dimensions 2-Bolt Flange BAF7(GB) 075-090 “V” Mount Code


“K” Port Code

“F” Port Code



SH11CR 108-125


Dimensions 2-Bolt Flange BAF7(GB) 108-125 “W” Mount Code


“1” Port Code

“G” Port Code




Dimensions 2-Bolt Flange BAF7(GB) 160-180 “W” Mount Code


“1” Port Code

“G” Port Code



Motor Special Features Speed Sensor

Output signal electronic tacho

The sensor can be assembled at S1 drain location.

Number of pulses per revolution = 14 Inductive principle Ouput current PNP Voltage 10-65 V d.c. Max load 300 mA Max frequency 10000 Hz Temperature range -25°C +85°C Enclosure IP 67 Available versions: • Sensor with 2 metres three wires cable (cod. 424.0050.0000)

Same Side Bottom Ports Port Cover

Opposite Side Ports Port Cover

BAF7(GB) 055-063 BAF7(GB) 075-090 BAF7(GB) 108-125 BAF7(GB) 160-180

A 103 104 124 141 mm [in] [4.05] [4.09] [4.88] [5.55]

B 44.5 40 42 41.7 mm [in] [1.75] [1.57] [1.65] [1.64]

BAF7(GB) 055-063 BAF7(GB) 075-090 BAF7 (GB) 108-125 BAF7(GB) 160-180

A Opposite Side Ports 185.8 182.2 211.8 236.8 mm [in] [7.31] [7.17] [8.33] [9.32]

B Opposite Side Ports 152.8 159.3 179.9 199.9 mm [in] [6.01] [6.27] [7.08] [7.87]

A Same Side Ports 178 181 216.5 223.4 mm [in] [7.01] [7.12] [8.52] [8.79]

B Same Side Ports 194 205 218 231.7 mm [in] [7.64] [8.07] [8.58] [9.12]


Motor Special Features Drain Plugs Reversed

For the BAF7(GB) motors it is possible to request the drain plug reversed compared to standard. For the reverse configu-ration specify ‘04’ in positions 26 and 27 of the model code.

Standard Version Drain plugs reversed "04" Version

S1 - Metallic plug.

S1

S2

S1

S2

S2 - Plastic plug. S1 - Plastic plug. S2 - Metallic plug.


Flushing Valve Model Code Pos. 23-24

Pilot Assisted Overcentre Valves Model Code Pos. 14

The VSC flushing valve allows an oil cooling action, which isrecommended when operating at high speed and power. Theunit consists of a 3-way spool valve which allows a small oil flow from the low pressure side of the circuit into the case of the motor via an internal connection. For correct operation it is necessary to connect the drain port of the motor to tank.

The pilot assisted overcentre valves prevent the motor from“running ahead” pulled by a driving load and allow cavitationfree operation. The relief section limits the pressure shocks.These valves incorporate also a shuttle valve to release the fail safe brake. The setting pressure value must be approx. 1.3 times the load induced pressure.To allow the descent of the load, a minimum pilot pressure must be supplied to the control valve. This is usually determined with the following formula:

Where:PP = pilot pressurePS = pressure setting of relief valve sectionPL = load induced pressureR = piloting ratio

PP = PS - PLR + 1

Description Theoritical Flow (391 psi) Orifice Diameter

VSC-06F Valve 6 L/min [1.5 US gpm] 1.5 mm [0.05 in]

VSC-09F Valve 10.5 L/min [2.7 US gpm] 2 mm [0.07 in]



P/3axial piston

R


R

VSCVALVOLA DI SCAMBIO PER MOTORI H1C-SH11C-H1CR-H2V-H2VR-SH7V 075 FLUSHING VALVE FOR H1C-SH11C-H1CR-H2V-H2VR-SH7V 075 MOTORS

Le valvole di scambio VSC permettono il raffreddamento dell’olio, di solito necessario quando si è in presenza di elevate velocità di esercizio ed elevate potenze. La valvola si compone di un distributore a tre posizioni e tre vie che preleva olio dalla linea a bassa pressione del circuito e lo invia alla carcassa del motore mediante passaggi interni, quindi senza la necessità di tubazioni esterne (solo nei motori H2V 226 è necessario prevedere un tubo esterno) e da qui al serbatoio. Per un corretto funzionamento è necessario collegare il drenaggio del motore al serbatoio.

The VSC flushing valve allows an oil cooling action, which is recommended when operating at high speed and power. The unit is made by a three positions - three way spool valve that allows a small oil flow from the low pressure line of the circuit into the motor casing without external piping (only H2V 226 still need an external line), then into the tank. For a correct operation it is necessary to connect the drain port of the motor with the tank.

Codice Code

DescrizioneDescription

Portata Teorica (22 bar) Theoretical flow [319 psi]

Diametro strozzatore Orifice Diameter

52152000000 VALVOLA VSC 06F VSC 06F VALVE

6 l/min [1.5 U.S. gpm]

1.5 mm [0.05 in]


10.5 l/min [2.7 U.S. gpm]

2 mm [0.07 in]


15 l/min [3.9 U.S. gpm]

2.5 mm [0.09 in]


20 l/min [5.2 U.S. gpm]

3.3 mm [0.12 in]

La valvola di scambio può essere fornita nelle seguenti versioni: The shuttle valve can be fitted in the following versions:

MOTORI H1C/H1CR/SH11C/SH11CR (COPERCHIO LM2) MOTORS H1C/H1CR/SH11C/SH11CR (LM2 COVER)

MOTORI H1C/H1CR/SH11C/SH11CR (COPERCHIO VM2) MOTORS H1C/H1CR/SH11C/SH11CR (VM2 COVER)

MOTORI H2V/H2VR/SH7V 075/SH7VR 075 MOTORS H2V/H2VR/SH7V 075/SH7VR 075

Le valvole possono essere montate sulle seguenti unità: The valves can be flanged on the following motors:

*Dimensions shown above are only for VSC-06F valve and may vary based on the flow required.


P/6axial piston

R


R

The pilot assisted overcentre valves prevent the motor from “running ahead” pulled by a driving load and allow cavitation free operation. The relief section limits the pressure shocks. These valves incorporate also a shuttle valve to release the fail safe brake. These valves are supplied flangeable on H1C-SH11C-SH11CR/LM2, H1C-H1CR-SH11C-SH11CR/VM2, or H2V/L2 ports covers. The setting pressure value must be approx. 1.3 times the load induced pressure.To allow the descent of the load, a minimum pilot pressure must be supplied to the control valve. This is usually determined with the following formula:

Le valvole controllo discesa impediscono il trascinamento del motore da parte del carico e garantiscono un’azione anti cavitazione. La sezione limitatrice previene i picchi di pressione. Incorporata è pure una valvola selettrice per l’azionamento del freno negativo. Queste valvole sono flangiabili sui coperchi H1C-H1CR-SH11C-SH11CR/VM2, H1C-SH11C-SH11CR/LM2 o H2V/L2. La pressione di taratura deve essere circa 1.3 volte di quella indotta dal carico. Per consentire la discesa del carico, è richiesta una pressione minima di pilotaggio può essere calcolato con la seguente formula:

VCD

1+−

=R

PLPSPP1+

−=

RPLPSPP

VCD/MDIMENSIONI VALVOLE DI CONTROLLO DISCESA PER H1C/H1CR/SH11C/SH11CR VM2-FM2 PILOT ASSISTED OVERCENTRE VALVES FOR H1C/H1CR/SH11C/SH11CR VM2-FM2

Corpo in alluminio Alluminium alloy casing

Valvole marinizzate Corrosion protected

La valvola viene fornita completa di viti ed O-ring. Valve is supplied with screws and O-rings.

VCD/M Rapporto di pilotaggio: Piloting ratio: ........................................................6.2:1 Campo di taratura: Setting range:......................30÷350 bar [435÷5075psi] Portata MAX.: MAX. Flow rate: ...................350 l/min [92.4 U.S. gpm]

ValvolaValve

H1C-R VM2

Amm[in]

Bmm[in]

Cmm[in]

Dmm[in]

Emm[in]

Fmm[in]

Nmm[in]

Omm[in]

SPA00000368 020/030 155 [6.10]

80 [3.14]

47 [1.85]

26 [1.02]

67 [2.63]

36 [1.41]

45 [1.77]

69 [2.71]

SPA00000369 040/045 075

183 [7.20]

90 [3.54]

47 [1.85]

26 [1.02]

95 [3.74]

36 [1.41]

45 [1.77]

69 [2.71]

SPA00000370 090/108 198 [7.79]

100 [3.93]

47 [1.85]

26 [1.02]

110 [4.33]

36 [1.41]

45 [1.77]

69 [2.71]

Gmm[in]

55 [2.16]

65 [2.55]

75 [2.95]

Hmm[in]

9 [0.354]

11 [0.433]

13.4 [0.527]

Imm[in]

40.6 [1.598]

50.8 [2.000]

57.2 [2.251]

Lmm[in]

18.2 [0.716]

23.8 [0.93]

27.8 [1.09]

Mmm[in]

1/2 G (BSPP)

3/4 G (BSPP)

1” G (BSPP)

Jmm [in]

18.4 [0.724]

24.2 [0.952]

26.8 [1.055]

Kmm [in]

9 [0.354]

13 [0.511]

12 [0.472]

PesoWeight kg [lbf]

2.7 [5.95]

3.5 [7.71]

4.2 [9.26]

SH11C-R VM2-FM2

/

055/063

075/090

dove: PP = press. di pilotaggio PS = press. di taratura della valvola di massima PL = press. indotta dal carico R = rapporto di pilotaggio

Where: PP = pilot pressure PS = pressure setting of relief valve section PL = load induced pressure R = piloting ratio

VALVOLE CONTROLLO DISCESA PER MOTORI H1C-SH11C-H1CR-H2V-H2VR PILOT ASSISTED OVERCENTRE VALVES FOR H1C-SH11C-H1CR-H2V-H2VR MOTORS

Pilot Assisted Overcentre Valves Model Code Pos. 14

Alluminium Alloy Casing

A mm B mm C mm D mm E mm F mm G mm H mm I mm J mm K mm L mm M mm N mm O mm P mm BAF7 [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in]

055/063 183 90 47 26 95 36 65 11 50.8 23.8 G 3/4 45 69 24.2 13 3.5 [7.20] [3.54] [1.85] [1.02] [3.74] [1.41] [2.55] [0.433] [2.000] [0.93] (BSPP) [1.77] [2.71] [0.952] [0.511] [7.71]

075/090 198 100 47 26 110 36 75 13.4 57.2 27.8 G 1” 45 69 26.8 12 4.2 [7.79] [3.93] [1.85] [1.02] [4.33] [1.41] [2.95] [0.527] [2.251] [1.09] (BSPP) [1.77] [2.71] [1.055] [0.472] [9.26]

VCD/MPiloting ratio .......................................................................... 6.2:1Setting range ......................................30÷350 bar [435÷5075psi]MAX. Flow rate ................................... 350 L/min [92.4 U.S. gpm]

Corrosion Protected


P/7axial piston

R


R

DIMENSIONI VALVOLE DI CONTROLLO DISCESA PILOT ASSISTED OVERCENTRE VALVES DIMENSIONS


VCD/1

VCD/1 Rapporto di pilotaggio: Piloting ratio: ......................................2.9:1 Campo di taratura: Setting range:..........0÷350 bar [0÷5075 psi] Portata MAX.: MAX. Flow rate: ..180 l/min [47.5 U.S. gpm]

Valvola / Valve SH11C-R/LM2

H1C/LM2 SH7V-R/LM

H2V/L2 Amm [in]

Bmm [in]

ØCmm [in]

ØDmm [in]

Emm [in] D1 F/Pp Peso / Weight

(kg[lbf])

SPA00000365 020/030 040/055/063 55 23.8

[0.937] 50.8

[2.000] 11

[0.433] 17

[0.66] 12

[0.472] 1” G (BSPP) 1/4 G (BSPP) 4.7 [10.4]

SPA00000366 075/090 75/108 27.8 [1.094]

57.1 [2.248]

13 [0.511]

19 [0.74]

14 [0.551] 1” G (BSPP) 1/4 G (BSPP) 4.7

[10.4]

SPA00000367 108/125 160/180/226 226 31.6

[1.244] 66.7

[2.625] 15

[0.590] 22

[0.86] 16

[0.62] 1” G (BSPP) 1/4 G (BSPP) 4.7 [10.4]

VCD/2Corpo in acciaio / Steel casing

VCD/2 Rapporto di pilotaggio: Piloting ratio: .................................................13:1 Campo di taratura: Setting range:.........250÷500 bar [3625÷7250 psi] Pressione MAX.: MAX. pressure: ............350 bar [5075 psi] Portata MAX.: MAX. Flow rate: ............350 l/min [92.4U.S. gpm]

ValvolaValve

H1C/LM2 H2V/L2

SH7V-R/LM SH11C-R

LM2 S3

mm[in]S2

mm[in]S1

mm[in]S

mm[in]L6

mm[in]L5

mm[in]L4

mm[in]L3

mm[in]L2

mm[in]L1

mm[in]L

mm[in]H1

mm[in]H

mm[in]F1

mm[in]

SPA00000371 075/090/108 075/090 16 [0.62]

40 [1.57]

57.1 [2.248]

79.5 [3.12]

27.8 [1.094]

27.8 [1.094]

91 [3.58]

20 [0.78]

85 [3.34]

59 [2.32]

191 [7.51]

57.1 [2.248]

80 [3.14]

12.5 [0.492]

SPA00000597 160/226 108/125 160/180

21 [0.83]

49 [1.93]

66.7 [2.625]

99 [3.90]

31.8 [1.252]

31.8 [1.252]

77 [3.03]

11 [0.433]

94.5 [3.72]

36 [1.41]

176 [6.93]

66.7 [2.625]

99 [3.90]

14.5 [0.571]

La valvola viene fornita completa di viti, o-ring e flangia Valve is supplied with screws, o-rings and flange


Corpo in acciaio / Steel casing

ValvolaValve

H1C/LM2 H2V/L2

SH7V-R/LM C2 - V2 C3 - P O-Ring P. / W.

kg [psi]

SPA00000371 075/090/108 1” SAE 6000 1/4 G (BSPP) 2-219 8.8 [19.4]

SPA00000597 160/226 1-1/4” SAE 6000 1/4 G (BSPP) 2-221 13 [28.65]

SH11C-RLM2

075-090

108/125 160/180

F

M12

M14

P/7axial piston

R


R



VCD/1

VCD/1 Rapporto di pilotaggio: Piloting ratio: ......................................2.9:1 Campo di taratura: Setting range:..........0÷350 bar [0÷5075 psi] Portata MAX.: MAX. Flow rate: ..180 l/min [47.5 U.S. gpm]

Valvola / Valve SH11C-R/LM2

H1C/LM2 SH7V-R/LM

H2V/L2 Amm [in]

Bmm [in]

ØCmm [in]

ØDmm [in]

Emm [in] D1 F/Pp Peso / Weight

(kg[lbf])

SPA00000365 020/030 040/055/063 55 23.8

[0.937] 50.8

[2.000] 11

[0.433] 17

[0.66] 12

[0.472] 1” G (BSPP) 1/4 G (BSPP) 4.7 [10.4]

SPA00000366 075/090 75/108 27.8 [1.094]

57.1 [2.248]

13 [0.511]

19 [0.74]

14 [0.551] 1” G (BSPP) 1/4 G (BSPP) 4.7

[10.4]

SPA00000367 108/125 160/180/226 226 31.6

[1.244] 66.7

[2.625] 15

[0.590] 22

[0.86] 16

[0.62] 1” G (BSPP) 1/4 G (BSPP) 4.7 [10.4]

VCD/2Corpo in acciaio / Steel casing

VCD/2 Rapporto di pilotaggio: Piloting ratio: .................................................13:1 Campo di taratura: Setting range:.........250÷500 bar [3625÷7250 psi] Pressione MAX.: MAX. pressure: ............350 bar [5075 psi] Portata MAX.: MAX. Flow rate: ............350 l/min [92.4U.S. gpm]

ValvolaValve

H1C/LM2 H2V/L2

SH7V-R/LM SH11C-R

LM2 S3

mm[in]S2

mm[in]S1

mm[in]S

mm[in]L6

mm[in]L5

mm[in]L4

mm[in]L3

mm[in]L2

mm[in]L1

mm[in]L

mm[in]H1

mm[in]H

mm[in]F1

mm[in]

SPA00000371 075/090/108 075/090 16 [0.62]

40 [1.57]

57.1 [2.248]

79.5 [3.12]

27.8 [1.094]

27.8 [1.094]

91 [3.58]

20 [0.78]

85 [3.34]

59 [2.32]

191 [7.51]

57.1 [2.248]

80 [3.14]

12.5 [0.492]

SPA00000597 160/226 108/125 160/180

21 [0.83]

49 [1.93]

66.7 [2.625]

99 [3.90]

31.8 [1.252]

31.8 [1.252]

77 [3.03]

11 [0.433]

94.5 [3.72]

36 [1.41]

176 [6.93]

66.7 [2.625]

99 [3.90]

14.5 [0.571]

La valvola viene fornita completa di viti, o-ring e flangia Valve is supplied with screws, o-rings and flange


Corpo in acciaio / Steel casing

ValvolaValve

H1C/LM2 H2V/L2

SH7V-R/LM C2 - V2 C3 - P O-Ring P. / W.

kg [psi]

SPA00000371 075/090/108 1” SAE 6000 1/4 G (BSPP) 2-219 8.8 [19.4]

SPA00000597 160/226 1-1/4” SAE 6000 1/4 G (BSPP) 2-221 13 [28.65]

SH11C-RLM2

075-090

108/125 160/180

F

M12

M14

Pilot Assisted Overcentre Valves Dimensions Model Code Pos. 14

Pilot Assisted Overcentre Valves Dimensions Model Code Pos. 14

A B ØC ØD E D1 F/Pp Peso / Weight BAF7 mm [in] mm [in] mm [in] mm [in] mm [in] (kg[lbf])

055/063 23.8 50.8 11 17 12 G 1” (BSPP) G 1/4 (BSPP) 4.7 [0.937] [2.000] [0.433] [0.66] [0.472] [10.4]075/090 27.8 57.1 13 19 14 G 1” (BSPP) G 1/4 (BSPP) 4.7 [1.094] [2.248] [0.511] [0.74] [0.551] [10.4]108/125 31.6 66.7 15 22 16 G 1” (BSPP) G 1/4 (BSPP) 4.7 160/180 [1.244] [2.625] [0.590] [0.86] [0.62] [10.4]

S3 S2 S1 S L6 L5 L4 L3 L2 L1 L H1 H F1 BAF7 mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in] mm[in]

075/090 16 40 57.1 79.5 27.8 27.8 91 20 85 59 191 57.1 80 12.5 [0.62] [1.57] [2.248] [3.12] [1.094] [1.094] [3.58] [0.78] [3.34] [2.32] [7.51] [2.248] [3.14] [0.492]

108/125 21 49 66.7 90 31.8 31.8 77 11 94.5 36 176 66.7 99 14.5 160/180 [0.83] [1.93] [2.625] [3.90] [1.252] [1.252] [3.03] [0.433] [3.72] [1.41] [6.93] [2.625] [3.90] [0.571]

VCD/1Piloting ratio ................................................... 2.9:1Setting range ....................0÷350 bar [0÷5075 psi]MAX. Flow rate ............ 180 L/min [47.5 U.S. gpm]

Steel Casing

Steel Casing Valve is supplied with screws and O-rings.

VCD/2Piloting ratio .................................................... 13:1Setting range ..........250÷500 bar [3625÷7250 psi]MAX. pressure ...........................350 bar [5075 psi]MAX. Flow rate ............. 350 L/min [92.4U.S. gpm]

BAF7 C2 - V2 C3 - P O-Ring P. / W. kg [psi] F

075-090 1” SAE 6000 G 1/4 (BSPP) 2-219 8.8 [19.4] M12

108/125 1-1/4” SAE 6000 G 1/4 (BSPP) 2-221 13 M14 [28.65]


Double Acting Overcentre Valve Model Code Pos 14

A B C D E F G BAF7 mm [in] mm [in] mm [in] mm [in] mm [in] mm [in] mm [in] V1-V2 O-RING Weight kg [lb]

055/063 59 13 19 23.8 50.8 75 42.1 G 3/4 (BSPP) 2-119 4.7 [2.32] [0.511] [3.54] [0.937] [2.000] [2.952] [1.65] [10.4]

075/090 69 12 100 27.8 57.2 84 34.4 G 1” (BSPP) 2-123 4 [2.71] [0.472] [3.93] [1.094] [2.251] [3.307] [1.35] [8.81]

VCD/1Piloting ratio ................................................... 2.9:1Setting range ....................0÷350 bar [0÷5075 psi]MAX. Flow rate ............. 180 l/min [47.5 U.S. gpm]

P/9axial piston

R


R

DIMENSIONI VALVOLA CONTROLLO ROTAZIONE PER H1C/H1CR/SH11C/SH11CR VM2-FM2 DOUBLE ACTING OVERCENTRE VALVE FOR H1C/H1CR/SH11C/SH11CR VM2-FM2 DIMENSIONS VCR1 D/AF

Valvola / Valve H1C-RVM2

Amm [in]

Bmm [in]

Cmm [in]

Dmm [in]

Emm [in] V1-V2 O-RING

PesoWeight kg [lb]

SPA00000362 020/030 59 [2.32]

16.8 [0.66]

80 [3.14]

18.2 [0.716]

40.6 [1.598] 1/2 G (BSPP) 2-115 4.7

[10.4]

SPA00000363 040/045 075

59 [2.32]

13 [0.511]

90 [3.54]

23.8 [0.937]

50.8 [2.000] 3/4 G (BSPP) 2-119 4.7

[10.4]

SPA00000364 090/108 69 [2.71]

12 [0.472]

100 [3.93]

27.8 [1.094]

57.2 [2.251] 1” G (BSPP) 2-123 4

[8.81]

Fmm [in]

59 [2.322]

75 [2.952]

84 [3.307]

Gmm [in]

55.2 [2.17] 42.1 [1.65] 34.4 [1.35]

SH11C-RVM2-FM2

/

055/063

075/090

VCR1 D/AF Rapporto di pilotaggio: Piloting ratio: .....................................................6.2:1 Campo di taratura: Setting range:.....................................................30÷350 bar [435-5075 psi] Taratura standard (Q=5 l/min).: Standard setting (Q=5 l/min[1.32 U.S. gpm]): …150÷170 bar [2175÷2465 psi]

Corpo in alluminio Valvole marinizzate Alluminium alloy casing Corrosion protected

Valvola / Valve H2V F2 H2VR F2

SH7V FM SH7VR FM

Qmm [in]

Rmm [in]

Smm [in]

Tmm [in]

Umm [in]

Vmm [in]

C1-C2mm [in] V1-V2 C3

Portata max Max flow

l/min [U.S.gpm]

SPA00000708 055 / 70 [2.75]

50.8 [2.000]

23.8 [0.937]

69 [2.716]

72 [2.835]

49 [1.93]

Ø 15 [Ø 0.59] 3/4 G (BSPP) 1/4 G (BSPP) 120

[31.68]

VCR2 D/AF Rapporto di pilotaggio: Piloting ratio: .....................................................6.2:1 Campo di taratura: Setting range:.....................................................60÷350 bar [870-5075 psi]

Corpo in alluminio Valvole marinizzate Alluminium alloy casing Corrosion protected

DIMENSIONI VALVOLA CONTROLLO ROTAZIONE DOUBLE ACTING OVERCENTRE VALVE DIMENSIONS VCR2 D/AF

Aluminium alloy casingCorrosion protected

VCR1 D/AFPiloting ratio .....................................................................................................6.2:1Setting range ..........................................................30 to 350 bar [435 to 5075 psi]Standard setting (Q=5 L/min[1.32 U.S. gpm]) .....150 to170 bar [2175 to 2465 psi]


Application Information Fluid and Filtration Guidelines

Types of Fluid The table below shows the main categories of hydraulic fluid as referenced in ISO 6743-4. Under normal operating condi-tions, Eaton Hydraulics recommends mineral oil-based fluids with anticorrosive and anti-wear additives (HM or HV) for its bent-axis piston units. Flame resistant fluids (HF grade) and organic fluids (HE grade) may not be fully compatible with materials and may therefore reduce the maximum pressure and speed specification of Bent Axis piston units. Customers are advised to contact Eaton Hydraulics before using flame-resistant or organic fluids.

ViscosityThe optimum viscosity of the hydraulic fluid at normal sys-tem operating temperature (temperature of the tank for open circuits or temperature of the circuit for closed cir-cuits) must fall between the minimum and maximum values shown below. The minimum viscosity shown is permitted in extreme conditions and for short intervals. The maximum viscosity for short intervals and during cold starts is shown below. The temperature of the fluid should not exceed a maximum of +90°C or minimum of -25°C.

Viscosity Recommendation for Variable and Fixed Displacement Motors

Optimum 15-40 (cSt)

Minimum 10 (cSt)

Maximum 800 (cSt)

Viscosity grades Under the ISO standard, hydraulic fluids are divided into 8 grades of viscosity. In order to choose the correct type of fluid, it is essential to know the operating temperature of the fluid (temperature of the tank for open circuits or tempera-ture of the circuit for closed circuits). At normal system oper-ating temperature, the viscosity of the fluid must fall within the optimum viscosity range above.

Contamination GradesEfficient filtering is essential for hydraulic systems to oper-ate properly. A good quality fluid extends the working life of hydraulic parts and makes the system more reliable.

Filtering Grade ISO 4572 states that the filtering ratio βx is the ratio of the number of particles greater than given size upstream of test filter divided by number of particles of same size down-stream. The grade βx therefore gives a good indication of the quality of the filter.

Example: A filter with a filtering ratio of β20 ≥ 100 is ableto capture 99% of particles greater than or equal to 20 µm. Eaton Hydraulics recommends filters with the following Bx ratios for its Bent Axis piston motors:

Maximum Contamination Grades ISO

Fixed Bent Axis Motors 21/19/16

Filtering Ratio ßX Efficiency Notes

2 50% Average size of filter pores equal to smallest particles

20 95% Normal retention

100 99% Absolute retention

Bent Axis Design Motors: Flushing the Bearings The operating temperature influences the operating life ofthe bearings to a significant degree. As a result it is essentialto maintain oil temperature at the bearings at acceptable levels. These units are designed to allow flushing the shaft bearings by utilizing the optional flushing valve. Flushing is recommended where motors are installed vertically and where operating cycles display long periods at high pressure (> 250 bar).


Application Information Installation Guidelines

41EATON Bent Axis Piston Motor - Variable Displacement E-MOPI-MC005-E1 March 2011

Application informationInstallation Guidelines

1. Filling the Case

The case of bent axis piston motors must be pre-filled with hydraulic oil before the system is started for the first time.

Use the case drain connec-tion at the highest point to ensure the case remains full at all times. See figure below.

Caution: Starting the motor with little or no oil in the case causes immediate and permanent damage to the piston unit.

2. Connections

To reduce noise levels, flexi-ble hoses are recommended (Main system pressure lines as well as case drain lines).

Case drain hoses should be as short as possible.

Minimize pressure drops due to couplings, elbows and differences in diameter.

Where non-flexible tubes are used, ensure that the pipes do not pull on the cover of the motor.

All hoses connected to tank (case drain lines) should be immersed at least 200 mm [8 in.] below the minimum oil level and at least 150 mm [6 in.] from the bottom of the tank.

Drive Shaft

Take special care to ensure that mechanical parts of the motor are coupled correctly. Ensure that the shaft and flange are lined up accu-rately to prevent additional loads on the shaft bearings. Flexible couplings should be used.

Caution: incorrectly aligned parts significantly reduce the service life of the bearings.

Installation Guidelines

The following installation guidelines for Eaton Bent Axis piston motors are designed for standard com-ponents applied within cata-log ratings. Observing these guidelines below will help ensure acceptable life of the motors.

Oil

OilOil

Oil Oil Oil

S1

S1

S1

S1

RAir Bleed

S1

S2

S2

S2

Pag. 3/9

axial piston

R


R

Figura 2 - Figure 2

Orientamento di installazione E’ possibile installare il motore nei seguenti modi (vedere figura 2): A - orizzontale I : albero orizzontale e inclinazione corpo verso l’alto. B - orizzontale II : albero orizzontale e inclinazione corpo verso il basso. C - verticale I : albero verticale verso il basso. D - verticale II : albero verticale verso l’alto. E - sul fianco : albero orizzontale e motore sul fianco. Installazioni ibride fra le posizioni sopra contemplate richiedono precauzioni addizionali o, in alcuni casi, non sono possibili. In caso di dubbio contattare il servizio di assistenza tecnica durante la fase di progettazione dell’applicazione.

Installation orientation

The following installation orientations are possible, see figure 2: A - horizontal I : drive shaft horizontal and casing bend

upwards. B - horizontal II : drive shaft horizontal and casing bend

downwards. C - vertical I : drive shaft downwards. D - vertical II : drive shaft upwards. E - at side: drive shaft horizontal and motor on one side. Intermediate installation orientations require additional measures or are not permitted. Please discuss any other requirements with us at the project stage.

NOTA BENE: per i disegni dimensionali ed i riferimenti citati nel testo vedi catalogo prodotti a pistoni assiali.

NOTE: for dimensions and porting reference see dimensions section axial piston catalogue.


42 EATON Bent Axis Piston Motor - Variable Displacement E-MOPI-MC005-E1 March 2011

Application informationInstallation Guidelines (Continued)

Installation Position

Motors may be installed both above and below the level of the fluid in the tank, (lowest level of the oil when the system is operating). When motors are used in open circuit applications, the oil level is affected by the number and size of any hydraulic cylinders used in the system. For mobile installations it is important to take into account the slope of the ground and the effect of centrifugal forces on the oil level.

Installation Above the Tank

Particular care should be taken when installing units above the tank. Special case drain hoses must always be used to prevent the case from being siphoned out.

Always use the highest case drain port available and ensure that the line is designed such that the motor case remains full at all times.

It is recommended to position a pre-loaded check valve in the cased drain line (maximum pressure when open: 0.5 bar [8 psi]) to prevent oil from draining from the motor case when the system is not in use.

The oil level of the units should be checked at regular intervals. It is essential to check the level if the system is out of service for extend-ed periods of time, since the force of gravity causes oil to drain from the case.

Installation Below the Tank

Installation below the mini-mum level of the fluid (or immersed in fluid) does not create particular problems. Gearbox mount motors should not be installed verti-cally with the shaft turned upwards.

Flushing

If Bent Axis piston motors are to be installed with shaft turned upwards, or run at high oil temperature inside the tank (>50° C), or if units are used for a long operation time at high pressures(>250 bar), it is recommended to flush the motor with the optional flushing valve (model code position 23,24) and selecting the desired flow rate.

S2

S2

S2R

S2

S1

S1

S1

S1

S1

Application Information Installation Guidelines (Cont...)

Pag. 6/9

axial piston

R


R

Figura 5 - Figure 5

Figura 4 - Figure 4

Posizione di Installazione 1 (sopra al serbatoio - vedere fig. 1)

In questa posizione, deve essere collegato l’attacco di drenaggio più alto fra “S1” o “S2”, con l’aggiunta di una valvola di non ritorno (vedi figura 3). In questo modo è possibile evitare lo svuotamento della carcassa a causa della discesa della colonna di fluido nel drenaggio, dovuta al peso proprio (un metro di tubo che si svuota causa circa 0.1 bar di depressurizzazione). Nello scegliere il valore di pressione di apertura della valvola, occorre tenere conto della eventuale presenza dello scambiatore e del circuito di lavaggio del motore (non rappresentati in figura); in ogni caso, non superare il valore di pressione massima ammissibile in carcassa (1.5 bar). Posizione di Installazione 2 (sotto al serbatoio - vedere fig. 1)

In questa posizione, deve essere collegato l’attacco di drenaggio più alto fra “S1” o “S2”, ed il valore di altezza di battente massimo è determinato dalla pressione massima ammissibile in carcassa (1.5 bar - ogni metro di colonna di fluido equivale a circa 0.1 bar in carcassa). Occorre effettuare lo spurgo dell’aria dopo il riempimento della carcassa (vedi procedure di riempimento). Per spurgare l’aria utilizzare l’attacco di spurgo o di drenaggio in posizione più elevata. Riempimento del motore Qualunque sia l’orientamento di installazione, è consigliabile riempire il motore con olio pre-filtrato prima di installarla in posizione. La carcassa può essere così riempita attraverso l’attacco S1 o S2. Gli altri attacchi di drenaggio che debbano poi essere collegati devono, durante questa operazione, rimanere chiusi, o con tappi o con valvole unidirezionali o altro. Questo allo scopo di prevenire lo svuotamento della carcassa (o l’ingresso di aria) durante l’installazione. Se il motore viene installato sotto battente è importante aprire le linee di drenaggio solo dopo aver riempito il serbatoio (o quando il motore si trovi sotto il livello olio). Le operazioni da effettuare sono mostrate in figura 4 e 5. Nel caso il motore si trovi già installato in posizione, è comunque possibile effettuare il riempimento adottando le opportune precauzioni per evitare l’ingresso di sporcizia od altro. Una indicazione sulla procedura di riempimento con motore installato in posizione è riportata in figura 5.

Mounting position 1 (above the reservoir - see Figure 1)

In this position, the highest drain port “S1” or “S2” must be connected to tank via a non return valve, see figure 3. The height difference between the unit and the tank can be negated in this way and the weight of the oil column in the drain line causing a negative pressure at the case drain port does then not need to be considered (a height of 1 metre above oil level causes about 0,1 bar [1.45 psi] negative pressure). When selecting the cracking pressure of the valve, the heat exchanger back pressure value and the motor flushing circuit (not shown in the drawing) must be considered. Anyway, always keep the maximum housing pressure below 1.5 bar [21.75 psi]. Mounting position 2 (below the reservoir - see figure 1)

In this position, the highest drain port “S1” or “S2” must be connected to tank. The maximum height difference between the tank and the unit is dependent upon the maximum admissible casing pressure (1.5 bar [21.75 psi] - a height of 1 metre below oil level = 0,1 [1.45 psi] bar pressure). Complete air bleeding of the unit must be carried out, after filling the housing (see filling procedure). Bleeding must take place via the highest bleed or drain port. Filling the unit

All installation orientations (and also for intermediate orientations not shown) are to be mounted after the optimum filling orientation. The housing is to be filled from S1 or S2 drain port with pre-filtered oil. At this point in time, all other ports must be plugged. Ports which will be required later must be closed by means of pipe bends or non return valves. This prevents air entering the unit when turning it into its installation orientation. When installing the unit below the minimum oil tank, it should be noted, that the ports are then only opened after the tank has been filled and when the unit is below oil level. The sequence of operations to be done are shown in figure 4 and 5. If the motor is already installed into position, it is possible to fill the casing following the directions shown in figure 5. While doing this, it is important to avoid any contamination of the casing with dirt or other contaminants.


43EATON Bent Axis Piston Motor - Variable Displacement E-MOPI-MC005-E1 March 2011

Application informationInstallation Guidelines (Continued)

System Start-up

Before starting system for the first time, fill system components with new and filtered oil. In addition, clean the reservoir and fill with the same type of oil. We recom-mend flushing the circuit. Verify that charge pressure is correct (closed circuits). Check reservoir level and top-off if necessary.

Closed Circuit Cleaning Procedure

Hydrostatic transmission circuits must be cleaned without load for a period of one hour. Afterwards, remove system pressure hoses from port connections A and B on the motor and connect them together so as to short circuit the pump. Insert a filter in series (working pressure: 50 bar

[750 psi]) on the connection A of the pump. Make sure the direction of rotation of the pump ensures the flow as shown by the arrows. If necessary insert a non-return valve. A 10 mm filter in series is recommended.

Maintenance

Replace filter after first 50 hours of operation, and then every 500 hours.

Change oil after first 500 hours of operation. Subsequently change oil every 2,000 hours.

Maintenance intervals should be reduced when the filter indicator shows that the filter is dirty or when the system is operated in an especially dusty environment.

Figure 5 - Closed circuit cleaning

Application Information Installation Guidelines (Cont...)

System Start-upBefore starting system for the first time, fill system compo-nents with new and filtered oil. In addition, clean the reser-voir and fill with the same type of oil. We recommend flush-ing the circuit. Verify that charge pressure is correct (closed circuits). Check reservoir level and top-off if necessary.

Closed Circuit Cleaning ProcedureHydrostatic transmission circuits must be cleaned without load for a period of one hour. Afterwards, remove system pressure hoses from port connections A and B on the motor and connect them together so as to short circuit the pump. Insert a filter in series (working pressure: 50 bar [750 psi])

on the connection A of the pump. Make sure the direction of rotation of the pump ensures the flow as shown by the arrows. If necessary insert a nonreturn valve. A 10 μm filterin series is recommended. MaintenanceReplace system filters after the first 50 hours of operation, and then every 500 hours. Change oil after first 500 hours of operation. Subsequently change oil every 2,000 hours. Maintenance intervals should be reduced when the filter indicator shows that the filter is dirty or when the system is operated in an especially dusty environment.

© 2012 Eaton Corporation All Rights Reserved Printed in USA Document No. E-MOPI-MC020-E September 2012

EatonHydraulics Group USA14615 Lone Oak RoadEden Prairie, MN 55344USATel: 952-937-9800Fax: 952-294-7722www.eaton.com/hydraulics

EatonHydraulics Group EuropeRoute de la Longeraie 71110 MorgesSwitzerlandTel: +41 (0) 21 811 4600Fax: +41 (0) 21 811 4601

Eaton Hydraulics Group Asia PacificEaton BuildingNo.7 Lane 280 Linhong RoadChangning District, Shanghai200335 ChinaTel: (+86 21) 5200 0099Fax: (+86 21) 2230 7240

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