-All dimensions are in inches
-To specify RBC Roller® with lubrication holes, add OH suffix (example: RBC 1 1/2 OH).
-Seals can be removed for flow-through lubrication.
-To specify RBC Roller® without seals, add NS suffix (example: RBC 4 NS).
-To specify RBC Roller® with crowned outer ring, add C prefix (example: CRBC 2 1/2).
-1/16 inch for sizes RBC 5 and larger.