2 styles available.

Clipper Seed & Grain Cleaner Eccentric Shaker Bearing Assemblies (current style)

These have the 3/8" key slot. These have been loaded with new bearings and ready to go back to work.

Clipper Seed & Grain Cleaner Eccentric Shaker Bearing Assemblies (Older Style) 

These have the 1/4" key slot. These have been loaded with new bearings and ready to go back to work.

Some are rounded at the end and some are flat (this does not affect the operation).