These units have the same basic design as the RCJ series, except a concentric collar is used as the shaft-locking device instead of a self-locking cam collar
All RCJC units are equipped with GC-KRRB wide inner ring, concentric-collar bearings
The spherical outside diameter of the bearings is mounted in corresponding machined housing seats to provide the initial self-alignment
The bolt-hole spacing dimensions are interchangeable with the RCJ series and most competitive units
The units are factory-prelubricated, but a grease fitting is provided for relubrication if required