Timken 2MM205WICRDUL Angular Contact Ball Bearing Set

Timken 2MM205WICRDUL is a matched duplex set of super-precision single-row angular contact ball bearings from the Timken Fafnir 200WI series, factory-matched with light preload (DUL) for high-speed machine-tool spindles demanding rigidity, minimal runout, and precise shaft positioning. The MPN is 2MM205WICRDUL and the World Part Number is 7205C-T-P4S-DUL. This duplex arrangement features bore 25 mm, outside diameter 52 mm, and bearing width 15 mm per bearing (duplex total width 30 mm), with a 15° contact angle. It uses steel balls, CR outer land riding cage, and a phenolic MBR cage, delivering ISO P4S (ABEC 7/9) precision. Each bearing carries a static radial load rating (C0) of 10,200 N and a dynamic radial load rating (Ce) of 18,400 N; ISO dynamic load rating (C1) is 16,700 N. Limiting speed is 29,800 rpm under grease lubrication and 59,600 rpm under oil. Maximum shaft and housing fillet radii are 1.0 mm. The duplex set is designed to support combined radial and axial loads in high-speed precision spindle applications and is commonly used in CNC machining centers, high-speed milling machines, precision lathes, grinding machines, machining spindles, and other precision machine tools.