Roller followers

This type of bearing is used in mechanisms where the outer ring rolls on a track. For example, these track rollers are applied to eccentric roller, guide roller, rocker arm roller, cam roller and pressure roller. For that, the outer ring is designed to a wall thickness so as to be resistible to high load and shock load. Both spherical outer surface (rolling surface) and cylindrical outer surface are available for the outer ring. The spherical outer ring can withstand edge-load acting on the contact surface between the track and the track roller, while the cylindrical outer ring (Tail code: X) has track load capacity greater than the spherical outer ring. There are two main types of track rollers:

• Without axial guide: the outer ring has no ribs or face ring and no axial guide function, as a consequence the shaft must be provided with a thrust washer and a flange. The outer surface is available in both spherical (crowning) profile and cylindrical profile.
• With axial guide: the outer ring is guided axially by a face ring which is press fitted in the inner ring. The outer surface is available in both spherical (crowning) profile and cylindrical profile.