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.
- Unit inserts offer extended width, allowing them to be installed where space might be a constraint.
- Rubber-bonded seal has an outboard shroud to protect the seal.
- Bearing inner ring has a special profile to resist seal-lip inversion.
- General industrial equipment
- Fans and blowers
- Construction equipment
- Food and beverage