The insert bearing is sealed both sides to prevent dirt getting inside.Grease is filled during manfucture and no need to clean before installation or re-grease laster on. The bearing can undertake axial load less than 20% of dynamic load rating.
Insert ball bearing with eccentric locking collar (UEL series) is similar to those with set screw (UC series) but the set screw is located on locking collar instead of bearing inner ring. Insert ball bearing with 1:12 tapered bore (UK series) is mounted on tapered shaft or no shoulder shaft by meas of adapter sleeve.