CSA205-16�is an Eccentric Bore Light Duty Insert Ball Bearing with a Cylindrical Outer Race & Locking Collar. The locking collar has been equipped with two Set Screws to tighten onto a shaft.�CSA205-16�insert bearing is self-aligning for standard load capacity and features a drilled hole in the groove on the locking collar side and a drilled oil hole opposite the collar to make it interchangeable with all manufacturers. CSA200 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.