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Benchmark Tire
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Size of Tire ........................................ 245/40ZR18 97Y Tread Radius (Inflated), In. ............. 50.00/18.00/14.00Make & Description ..................................... MICHELIN Tread Arc Width (Inflated), In. ............................... 8.36 Pilot Sport 3 Radial X Non-Skid Depth, In. ............................................... 0.30Serial Number ............................. DOT 6I88 00FX4709 Tread Thickness, In. ............................................. 0.38No. of Plies/Load Range............................... 1+2+1 XL Total Crown Thickness, In. ................................... 0.58Tire Weight .................................................. 23.05 Lbs. Total Shoulder Thickness, In. ............................... 0.54Rim & Inflation ....................................... 18x8.5 26 PSI Shoulder Tread Rubber Thickness, In. ................. 0.27Cross Section (Inflated), In. .................................. 9.78 Cushion, In. ........................................................... 9.90Overall Diameter (Inflated), In. ............................ 25.85 Air Volume, Cu. In. ............................................... 1991Outside Perimeter -Heel to Heel, In. ................... 15.97 Material Volume, Cu. In. ......................................... 482Inside Perimeter -Toe to Toe, In. ........................ 15.18 Inside Bead Circ., In. -Heel ................................. 57.43Toe to Heel, In. ...................................................... 0.61 Inside Bead Diam., In. -Heel ............................... 18.28 Size Factor, In. .................................................... 35.63
CARCASS CORD DATA (Polyester) Ply 1Cord Construction ................................ (2000)/2Cord Tensile-Conditioned, Lb. ............. 62.8Cord Tensile-Bone Dry, Lb. ................. 62.3LASE @ 5% Conditioned, Lb. .............. 16.6LASE @ 5% Bone Dry, Lb. ................. 15.2Elong. @ Break-Conditioned, % ......... 15.9Elong. @ Break-Bone Dry, % .............. 17.0Cable Twist, Turns per Inch ................. 6.5Direction of Twist .................................. z/sCord Gauge, In. .................................... 0.033Cords/Inch-Crown-Normal ................... 17.5Cords/Inch-Crown-Circum. .................. 17.5Cord Angle-Crown, Deg. ..................... 89.0Picks per Inch ....................................... 1.7Ply Lay .................................................. ----
Ply Gauge @ Crown: Bottom of Ply 1 to Top of Ply 1 ........ 0.033 In.Including Belts
Total Carcass Strength/Inch-Normal ..... 1090 Lb. : Cond. 1099 Lb. 8795 Lb. : Cond. 8804 Lb.Total Carcass Strength/Inch-Circum. .... 1090 Lb. : Cond. 1099 Lb. 3910 Lb. : Cond. 3919 Lb.
SIDEWALL INSERT Position 1Material .......................................... RubberWidth, In. ........................................ 1.60Position 1 - Located between ply turnup and rubber chafer.
TIRE SPECIFICATION NO. 1421-ITTAURUS AGRICULTURAL TYRES
NyiregyhazaSMITHERS RAPRA, INC.
HUNGARY
September 15, 2010Copyright 2010 by Smithers Rapra, Inc.All rights reserved.
BELT DATA Position 1 Position 2 Position 3Material .......................................... Wire Wire NylonCord Construction .......................... 2+2x0.25mm (1260)/2Tensile, Lb. .................................... 150 ----O.D. (without wrap) ........................ 0.76mm ----Cable Construction ........................ 2+2x0.25mm ---- Lay ....................................... 0.80 Left* ----Total Wires ..................................... 4 ----Cord Tensile -Conditioned, Lb. ...... ---- ---- 53.0Cord Tensile -Bone Dry, Lb. .......... ---- ---- 53.0Cable Twist, Turns per Inch ........... ---- ---- 6.5Direction of Twist ........................... ---- ---- z/sCord Gauge, In. ............................. ---- ---- 0.026Picks per Inch ................................ 0.0 0.0 1.7Cords/Inch-Crown-Normal ............. 21.0 21.0 26.5Cords/Inch-Crown-Circum. ............ 9.5 9.2 0.0Cord Angle-Crown, Deg. ................ 27.0 26.0 0.0Belt Lay .......................................... Right Left CircumBelt Width, In. ................................ 8.54 7.97 9.15*The lay value shown applies to the outer two strands of twisted wire. The inner two strands are untwisted.Belt 3 is apparently made up of continuously-wound nylon cords that overlap one another in the shoulder area.
FLIPPER: None
CHAFER Position 1Material .......................................... RubberWidth, In. ........................................ 2.50
SQUEEGEE: NoneBEAD: (Cable) 8 turns of 0.051 in. diameter wire around 1 turn of 0.084 in. diameter wire.
Semi-hard rubber insulation and filler stock. No fabric cover. Tensile - 704 Lb.
VISCOELASTIC TREAD RUBBER PROPERTIES(Temperature -30 to 60, Strain Amplitude 0.25%, Frequency 10Hz, Ramp Rate 2C/min.)
Temperature(C)-2502560
E'Elastic
Modulus(MPa)1216.072.732.2317.03
E''ViscousModulus
(MPa)392.7239.0512.534.33
Tan dTangent
Delta --
0.320.540.390.25
E*ComplexModulus
(MPa)1277.982.5334.5817.57
D''Loss
Compliance(MPa-1)0.00020.00570.01040.014
Spec. No. 1421-ITSheet #2
September 15, 2010Copyright 2010 by Smithers Rapra, Inc.All rights reserved.
ROOM TEMPERATURE 100 Deg. C.ADHESIONS AVG. MAX. AVG. MAX.Sidewall & Carcass, PPI ......................... 38 51 32 43 Belt 1 & Carcass, PPI ............................. 43 54 25 30 Belt 1 & Belt 2, PPI ................................. 52 73 32 46 Tread & Belt 3, PPI ................................. 77 97 55 71
BLACK PHYSICAL PROPERTIES TREAD SW LINERHardness ................................................ 67 58 54 Stress @ 100% Elong., PSI ................... 450 250 170 Stress @ 200% Elong., PSI ................... 1000 620 400 Stress @ 300% Elong., PSI ................... 1680 1170 700 Stress @ 400% Elong., PSI ................... 2350 1770 990 Stress @ 500% Elong., PSI ................... ---- 2390 1230 Stress @ Break, PSI .............................. 2770 2500 1290 Elongation @ Break, % .......................... 470 520 540
SHLD BASE RBR BEADOF TREAD CHAF FILLER
Hardness ................................................ 70 75 89
BLACK BELT BEAD SWCHEMICAL ANALYSIS TREAD SW LINER COMPD FILLER INSERTSpecific Gravity ............................... 1.258 1.122 1.152 1.200 1.230 1.200Plasticizer, % .................................. 10.78 8.55 5.94 8.06 7.01 7.37Ash, % ............................................ 36.62 2.13 1.13 5.24 5.72 4.97Insol in HCl, % ................................ 34.82 0.27 0.24 0.19 0.54 0.99Carbon Black, % ............................. 5.27 31.92 34.96 33.04 34.97 35.26Total Sulfur, % ................................ 1.63 1.52 1.06 2.66 2.88 3.02Zinc Oxide, % ................................. 0.79 1.61 0.38 4.26 3.97 3.36Calcium Carbonate, % .................... 0.03 0.02 0.18 0.22 0.40 0.02Titanium Dioxide, % ........................ ---- ---- ---- ---- ---- ----Silicon Dioxide, % ........................... 34.19 ---- ---- ---- ---- ----Rubber Polymer By Weight, % ....... 50.89 56.62 58.01 46.04 50.00 51.98Insol in H2SO4, % .......................... ---- ---- ---- ---- ---- ----Magnesium Oxide, % ..................... ---- ---- 0.05 ---- ---- ----Cobalt, % ........................................ ---- ---- ---- 0.09 ---- ----Polymer, % ...................................... 100SBR 30NR CIIR 100NR 100NR 100NR
70BR
RBRCHAF
Specific Gravity ...................................... 1.175
Spec. No. 1421-ITSheet #3
September 15, 2010Copyright 2010 by Smithers Rapra, Inc.All rights reserved.
STICKER: NONEREMARKS: Tread and black sidewall are of different stock. Liner stock apparently extends from 0.60
in. above toe on one side to 0.60 in. above toe on other side and is approx. 0.037 in. inthickness at crown. Minimum inner liner gauge is 0.029 in. at shoulder. Liner splice is onan approx. 90 deg. angle. Each shoulder has a wedge stock over the ply which extendsapprox. 0.75 in. under the first belt edge. Tread has a total of 72 pitches. Tread mold isdivided into 8 radial segments. Each sidewall has a thin gum strip between the liner andthe ply which extends down from the shoulder area and is approx. 2.00 in. in length. Venting: Inside of tire has angular vents spaced approx. 1.60 in. apart at bead. Ventsextend from toe on one side to toe on other side, are approx. 0.10 in. wide and approx.0.03 in. raised and are part of a molded vent pattern (see section). Raised blackletters: approx. 0.65 in. in height and approx. 0.01 in. raised. Serrated outlinedraised black letters: approx. 0.35 in. to approx. 0.55 in. in height and approx. 0.02 in.raised. Treadwear indicators are marked with 8 Michelin Man logos around the shoulder ofthe tire.
PITCH SEQUENCE MEASUREMENT Code Identification - S= Small
M= MediumL= Large( ) = Radial Segment within Pitch
Total of 72 pitches. (See tread footprint for point of measurement)(L)LSLSMSMS(S)SSSMLMSM(L)MSLMMLLM(M)SLMMSMSS(M)MMLMMSSL(M)SSLLMSSS(M)LSLLMLMS(S)
SLSSSMLLTIRE FOOTPRINT DATALoad on Tire, Lb. ................................. 1365 @ 30 PSI 1365 @ 35 PSITotal Footprint Area, Sq. In. ................ 41.74 38.72Net Contact Area, Sq. In. .................... 27.12 24.92Loaded Radius, In. .............................. 11.95 12.03Tread Width from Footprint, In. ........... 7.78 7.75Loaded Deflection, In. ......................... 0.98 0.90Loaded Section Width, In. ................... 10.04 9.98TIRE PLUNGER DATA 3/4 In. Plunger, 2 In./Min. @ 26 PSIAvg. Force, Lb. .................. 1748Avg. Penetration, In. ............ 4.17Avg. Energy, In.-Lb. ............. 3645
5 Bottom
INDIVIDUAL BREAKS (DOT 139 Procedure)PENETRATION (In.) LOAD (Lb.) PLUNGER ENERGY (In.-Lb.)
4.16 1754 3648 Bottom4.17 1730 3607 Bottom4.18 1754 3666 Bottom4.17 1740 3628 Bottom4.19 1764 3696 Bottom
Minimum DOT 139 Plunger Energy - 2600 In.-Lb.
Sheet #4Spec. No. 1421-IT
September 15, 2010Copyright 2010 by Smithers Rapra, Inc.All rights reserved.
1004455 9/29/1073 659245/40ZR18 Michelin Pilot Sport 318X8.5 K. Downs730kg / 340 kPa 10.4697Y 2010-3 European Tire Analysis Report6188 00FX 4709 1421-ITTire Service 1004455
SRC RR (Newtons) = 52.1730 RR Coefficient = 10.39340
alpha () -0.3383beta () 0.9642
a 0.0788b 1.9663E-04c -3.2015E-07 SMERF RR (Newtons) = 49.6
RR Coefficient = 9.90
501126080
SRC Load (Newtons) SMERF RR = 0.55(SMERF EPA Urban) + 0.45(SMERF EPA Highway)SRC Inflation (kPa): where SMERF EPA cycles are calculated by integratingSRC Speed (kph): RR = PL (a + bV + cV2) over the EPA cycles
SMERF RR calculated according to
Base Inflation Pressure (kPa):SRC RR calculated according to RR = PL (a + bV + cV2)
at Standard Reference Condition.
Standard Reference Condition (SRC)
Coefficients (Newtons/kPa/kph)
Test Order:Max Load/Max Inflation Weight (kg):
Order Number:
Load and Inflation for Test MatricesMax Tire Load (kg):
Manufacturer/Type:Shore: Tire O.D.(mm):
Rim SizeTire Size:
Customer:
Requested By:
DOT number: Tnumber:Load Index/Speed Symbol:
www.smithersscientific.com
SAE J2452 Rolling Resistance ReportDate:SSS Tire ID:
Smithers Scientific Services, Inc.1150 North Freedom Street
Ravenna, Ohio 44226Tel:330-297-1495 Fax:330-297-0038
80
RR Coefficient =
Inflation Rolling Inflation RollingPressure Load Speed Resistance Pressure Load Speed Resistance
Condition (kPa) (Newtons) (kph) (Newtons) Condition (kPa) (Newtons) (kph) (Newtons)1 349 2147 116.1 21.8 16 403 6440 37.9 53.62 350 2148 84.6 20.6 17 403 6438 23.1 52.03 351 2148 58.6 19.7 18 402 6441 13.8 50.44 351 2148 38.3 19.2 19 300 6441 115.5 66.45 350 2150 23.5 18.3 20 301 6442 84.1 62.86 349 2145 14.1 17.6 21 301 6441 58.0 60.47 299 4297 115.7 46.1 22 301 6441 37.7 58.88 301 4296 84.3 43.4 23 301 6443 23.0 57.09 301 4297 58.3 41.7 24 300 6441 13.7 55.0
10 301 4297 38.1 40.2 2511 300 4298 23.3 38.9 2612 299 4298 13.9 37.5 2713 402 6440 115.6 60.1 2814 403 6441 84.2 57.2 2915 403 6440 58.0 55.2 30
R2= 0.99916
Tire Type P-Metric(sl) LT-Metric LT FloatationP-metric (sl) 240 kPa 350 kPa 240kPaP-metric (xl) Pressure(kPa) 260 370 260LT Metric Speed (kph) 80 80 80
RR SRC ConditionLoad(N) 70%
T&RA at
Data points listed below are those used for regression
Base Inflation Pressure and Max. Load
Speed (kph):
SRC Speed (kph): RR = P L (a + bV + cV ) over the EPA cyclesand P and L are the Standard Reference Condition.
RR at other conditions RR at other conditions (N)= Load (newtons):Inflation (kPa):
Base Inflation(kPa) Max. Load (kg)240 Corresponding T&RA load for the load
index and size. Single operation load for LT tires
Marked in sidewallT&RA pressure at max. loadLT Metric Speed (kph) 80 80 80for LT tiresT&RA pressure at max. load
1421-IT Michelin Pilot Sport 3BlueprintFootprintsPhotographRolling Resistance
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