Timken 2MM211WIDUL Angular Contact Ball Bearing

The Timken 2MM211WICRDUL is a factory-matched duplex set of super-precision single-row angular contact ball bearings from the Timken Fafnir 200WI series, supplied with light preload (DUL) for high-speed spindle rigidity and low runout, with Manufacturing Part Number 2MM211WICRDUL and World Part Number 7211C-T-P4S-DUL. It features a 55 mm bore, 100 mm outside diameter, and 21 mm per bearing width (42 mm duplex total) with a 15° contact angle and a CR outer land riding cage in an MBR phenolic cage assembly. Rated for heavy spindle duty, each bearing provides a static radial load of 40,000 N and a dynamic radial load of 58,700 N (ISO dynamic rating 53,400 N) with limiting speeds of 14,500 rpm grease and 29,000 rpm oil; maximum shaft and housing fillet radii are 1.5 mm, and it is designed to support combined radial and axial loads in high-speed precision spindle applications such as CNC machining centers, high-speed milling, grinding machines, jig borers, and precision lathes.