0.250" Bore Steel Set-Screw Collar (2 Pack)

This steel ¼" set-screw collar has a protrusion built in which serves the same purpose as a shim when next to a bearing. The protrusion will contact the inner race of the bearing so that the collar will not contact the outer race of the bearing. The 10-32 cupped-point set-screw will scribe the shaft that it tightens down against, creating excellent resistance to backing out or loosening.