Manual

18
TABLE III: RECOMMENDED LUBRICATION
Ball Bearings Roller Bearings
Shaft Size
(inches)
Grease Charge
(ounces)
Shaft Size
(inches)
Grease Charge
(ounces)
1/4 to 3/16 0.03 1-3/16 to 1-1/4 0.1
1/2 to 3/4 0.1 1-3/8 to 1-7/16 0.22
1-1/4 to 1-1/2 0.15 1-1/2 to 1-11/16 0.32
1-11/16 to 1-15/16 0.2 1-3/4 to 2 0.5
2 to 2-7/16 0.3 2 to 2-3/16 0.55
2-1/2 to 2-15/16 0.5 2-1/4 to 2-1/2 0.65
3 to 3-7/16 0.85 2-11/16 to 3 0.85
3-1/2 to 4 1.5 3-3/16 to 3-1/2 1.25
- - 3-15/16 to 4 2.5
- - 4-7/16 to 4-1/2 3.1
Frequency of re-lubrication depends upon operating conditions. The bearing operating temperature is the best index for
determining a re-lubrication schedule. The following chart gives the frequency of re-lubrication based upon continuous
operation for various operating temperatures and can be used as a satisfactory guide for determining when bearings
should be re-lubricated.
TABLE IV. LUBRICATION FREQUENCY
Speed Temperature Cleanliness Greasing Interval
100 RPM Up to 120° F Clean 5 months
500 RPM Up to 130° F Clean 2 months
1000 RPM Up to 210° F Clean 2 weeks
1500 RPM Over 150° F Clean Weekly
Any speed Up to 150° F Dirty 1 week to 1 month
Any speed Over 150° F Dirty Daily to 1 week
Any speed Any temperature Very dirty Daily to 1 week
Any speed Any temperature Extreme conditions Daily to 1 week