Rexnord ER20-HFF Ball Insert Bearing is an ER-style unmounted ball bearing insert with a 1-1/4 in bore, part of Rexnord's ER family of unmounted bearings. The unit features a cylindrical bore and set-screw locking, enabling secure shaft engagement in compatible assemblies. As an unmounted bearing insert, it provides the bearing elements without a housing, ready to be integrated into a matching Rexnord insert carrier. The ER20-HFF designation identifies the 1-1/4 in bore size within the ER series for reliable replacement in applicable equipment.
