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Bearing Lubrication Quick Reference Guide
Grease Compatibility613 615 622 625 629 630 633 635
Aluminum Complex I A C A I A A ABarium Complex I C I C C C C CCalcium Stearate A C I C I C C C
Calcium 12 Hydroxy C A C A A A A ACalcium Complex I I I I C I I ICalcium Sulfonate A C A C I C C C
Clay Non-Soap I I I I A I I ILithium Stearate C A I A I A A A
Lithium 12 Hydroxy C A I A I A A ALithium Complex C C C C I C C C
Polyurea, Conventional I I I I I I I IPolyurea, Shear Stable C C C C I C C C
• Separation of Parts• Reduction of Heat• Contamination Control• Corrosion Prevention• Reduce Component Wear• Support Load
Functions of a Lubricant:
A.W. Chesterton Company, 860 Salem Street, Groveland, MA 01834 USA Telephone: 781-438-7000, Fax: 978-469-6528 chesterton.com
Form No. EN25661 Bearing Reliability Pocket Guide 12/17
© 2017 A.W. Chesterton Company. ® Registered trademark owned by A.W. Chesterton Company in USA and other countries, unless otherwise noted.
Compatibility
n Selectionn Quantity
n Frequencyn Compatibility
Chesterton ISO certificates available on www.chesterton.com/corporate/iso
Technical data reflects results of laboratory tests and is intended to indicate general characteristics only. A.W. Chesterton Company disclaims all warranties express or implied, including warranties of merchantability and fitness for a particular purpose. Liability, if any, is limited to product replacement only. Any images contained herein are for general illustrative or aesthetic purposes only and are not intended to convey any instructional, safety, handling or usage information or advice respecting any product or equipment. Please refer to relevant Safety Data Sheets, Product Data Sheets, and/or Product Labels for safe use, storage, handling, and disposal of products, or consult with your local Chesterton sales representative.
KeyC Compatible. Grease may be
installed directly.A Acceptable. Grease normally.
Re-grease if oil bleed in 24 hrs. I Incompatible. Old grease
must be purged.
D1 (mm)
D2 (mm)
Chesterton Grease ISO NDm* Temp Water Load Oil
BleedElectric Motors
613 220 1.0 - 4.0 B B B B NR615#1, 615#2 100 0.7 - 3.0 B A A A C615#2-460 460 <0.5 B A A A NR
622 100 0.5 - 3.0 B B B B B625 100 0.7 - 3.0 B A A A C629 200 0.5 - 3.0 A B C A B630 46 1.5 - 8.0 A A A A A633 32 2.0 - 8.0 A B A C B635 100 1.5 - 5.0 A A A A A
*NDm X 100K, A=Best B=Good C=Fair NR= Not Recommend
Grease Selection Guide
Chesterton Grease
Operating Temperature DN (Speed Factor) NLGI #
630, 633, 635 -34 to 37°C (-30 to 100°F)
0 - 75,000 175,000 - 150,000 2
150,000 - 300,000 2
613, 615, 622, 625
-34 to 65°C (0 to 150°F)
0 - 75,000 275,000 - 150,000 2
150,000 - 300,000 3
629, 630, 635 37 to 135°C (100 to 275°F)
0 - 75,000 275,000 - 150,000 3
150,000 - 300,000 3Please contact Chesterton Application Engineering for NLGI #3.
NLGI depends on other factors as well, including bearing type, thickener type, base oil viscosity, and base oil type.
Selection
ISO 5
ISO
7IS
O 1
0IS
O 1
5IS
O 2
2IS
O 3
2IS
O 4
6IS
O 6
8IS
O 1
00IS
O 1
50IS
O 2
20IS
O 3
20IS
O 4
60
-20-40 0 20 40 60 80 100 120
10,000
20,000
30,000
40,000
50,000
100,000
200,000
300,000
400,000
500,000
Base Oil Viscosity Determination
SPEE
D F
ACT
OR
TEMPERATURE °C
Speed Factor, NDm = RPM x (D1+D2)/2
Speed Factor Determination
Quantity
Initial Fill of Bearing - % Free Space
400K200K 600K 800K 1M 1.2M 1.4M0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Speed factor mm x min-1
Gre
ase
volu
me
as %
of b
earin
g-fr
ee s
pace
0
Grease quantity as a percentage of bearing free space at various speed factors.
Grease Quantity for Refilling
A
B
Re-greasing volume based on bearing size and service intervals, for ideal conditions.
For a specific application, use Re-Greasing Frequency Chart.
Initial Fill of Housing
Lubricating from side: Fill 40% of housing
Lubricating from center: Fill 20% of housing
For highly contaminated environments or slow speeds: Fill up to 80% of housing
Quantity in grams (g) = B x A x 0.005
If only bearing housing dimensions are known, grams can be estimated by quantity in grams (g) = (W x L)/3 x 0.005
Photo courtesy of SKF USA Inc.
Photo courtesy of SKF USA Inc.
Photo courtesy of SKF USA Inc.
Frequency
Re-Greasing FrequencySelect RPM
Select shaft diameter
Frequency/Bearing Type—Hours
Adjust for Application Adjusted Frequency = Value x Correction Factor (Cf )
Note: Values are based on 60°C (140°F). For increased temperature above 60°C (140°F), reduce 50% for every 10°C (50°F) increase.
a radial ball bearings
b cylindrical roller bearings, needle roller bearings
c spherical roller bearings, taper roller bearings, thrust ball bearings
d bearing bore diameter
Grease Correction Factor by Application
1234
100 200 500 1000 2000 5000 10 000
200
100
150
300
500
1 000
1 5002 000
3 0004 000
6 000
10 000
50
c
b
a20 00015 000
10 0007 500
5 000
2 500
1 500
1 000750
500
250
20 00015 000
10 000
5 000
3 000
2 0001 500
1 000
500
1020
4060
80100120160200240280360420500
rpm
d (mm)
Hou
rs3 2
1
3
Equipment Service Conditions
Correction Factor (Cf)
Electric Motors-Horizontal,High Speed Spindles,Machining Centers
Clean, Dry, No Load and Vibration
0.9-1.0
Fans, Blowers-Horizontal,Mixers-Sealed,Split Case Pumps-Sealed Railway
Clean, Dry,Slight Vibration,Slight Dust/Dirt
0.7-0.8
Hammer Mills, Pulverizers, Cranes, Pulleys/Drum,Agitators, Mixers-HorizontalElectric Motors-Mining
High Humidity, Moderate Load and Vibration,Light Dust/Dirt
0.5-0.6
Electric Motors-Belt DriveCooling Tower, Fin Fans,Paper Machine-Dryers,Stock Chest, Washers,Sag/Ball Mills, Kilns Drives
Occasionally Wet, Moderate Load and Vibration,Moderate Dust/DirtpH 5-8
0.3-0.4
Agitators, Mixers-Vertical,Belt and Screw Press, Centrifuges, Slurry Pumps,Electric Motors-Vertical, Food Packaging Machinery
Always Wet, Moderate Load and Vibration,Start and StoppH <4 or >10
0.2-0.3
Belt Conveyors,Paper Machine-Wet EndMining, Construction EquipmentVibrating Motors, Screen
Water Spray,Heavy Load and Vibration,Heavy Abrasive Dust/Dirt
0.1