Housed bearing unit R

self-aligningsolid-blockwith ball bearing

Patented in 1923, the self-locking collar remains Timken’s most popular locking system to facilitate mounting of wide inner-ring bearings. The self-locking collar eliminates the need for locknuts, washers, shoulders, sleeves and adapters. With various seal and inner width variations for many agriculture and industrial applications, self-locking collars are the easiest housed unit to install. The locking collar has a counterbored recess made purposely eccentric to the collar bore. When assembled on the shaft, this eccentric recess engages, or mates, with an eccentric cam end of a bearing’s inner ring. The collar is engaged on the inner cam of the bearing. This assembly grips the shaft tightly with a positive binding action that increases with use. No adjustments of any kind are necessary. The collar setscrew provides supplementary locking. Design Attributes Unit inserts are full width, allowing them to be more tolerant of static misalignment and capable of holding more aggressive seals. Three-piece, fiber-embedded R-seal has outboard and inboard caps which provide longer sealing integrity than average. Eccentric locking collar has self-tightening mechanism. Applications Construction Equipment Conveyors Fans and Blowers Food and beverage General Industrial Equipment HVAC Packaging