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Cam followers and yoke rollers are pre-lubricated with an NLGI grade 2, lithium soap, mineral oil based grease with EP additives. RBC Roller type cam followers and yoke rollers are normally lubricated for life and have no provisions for relubrication. Needle roller type cam followers require relubrication depending on operating speed, duty cycle, operating environment, desired service life, etc.

For relubrication in service, mineral oil, or any good roller bearing grease on mineral oil basis may be used. Inquire about compatibility of greases with different base oil and thickener.

Except for the very small sizes (see tables), cam followers with screwdriver slots can be relubricated from both ends of the stud and through the housing. Table 2 lists suitable drive fit Alemite fittings. Plugs are furnished by RBC to close off unused passages.

Size Bearing P/N Fitting P/N
1/2" - 11/16" -16 to -22 3019
3/4" - 2 3/4" -24 to -88 1728-B, 1645-B
3" - 4" -96 to -128 1743, 1743-B
5" - up -160 any 1/4" NPT Fitting

Cam followers with hex holes cannot be relubricated from the flange end. Yoke rollers and sealed roller followers must be relubricated through the shaft.