Self Aligning Insert Bearing .SB 200 insert bearing is self-aligning for standard load capacity. Standard lubrication feature has a drilled hole in groove on locking collar side and drilled oil hole opposite the collar to make it interchangeable with all manufacturers. SB200 Insert Bearings can also be a replacement bearing for many Pillow Blocks, 2-Bolt Flanges, 3-Bolt Flanges, 4-Bolt Flanges, and Take up units. It can also be cost efficient for replacing the insert bearing instead of replacing the whole unit which can be costly.