These housed units are selected where setscrew locking is preferred, but inner- ring stress and/or distortion are of major concern. They are frequently used in limited-space applications and where reversing shaft rotation is encountered.

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.

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.

This Timken innovation prolongs shaft life while allowing easy installation and removal of a standard setscrew unit. Its technology minimizes shaft damage by protecting shafts from gouging, raised metal and fretting corrosion. These insert bearings are found where production uptime is critical and shaft replacement is expensive.

The GYA-RRB series of relubricatable and non-relubricatable bearings offer an extended inner ring with specially designed setscrews to lock on shafting. The series also features a positive-contact, land-riding R-seal to protect against harmful contaminants and retain lubricant. Extended inner-ring bearings are used where space is at a premium and load overturn is not a problem.

The GY-KRRB series of relubricatable and non-relubricatable bearings offer a full-width inner ring with specially designed setscrews to lock on shafting. The series also features a positive-contact, land-riding R-seal to protect against harmful contaminants and retain lubricant.

Full-width inner ring bearings are ideal where maximum shaft-surface contact is needed for added stability. For shaft protection, the GY-KRRB insert is equipped with shaft-guarding technology.