The Timken Company 7318WNSU Angular Contact Bearing

The Timken Fafnir 7318WNSU angular contact bearing is a single-row angular contact ball bearing designed to support combined radial and axial loads in high-speed industrial rotating equipment. With a 40° contact angle and universal mounting (SU), it supports duplex arrangements in machine tools, industrial drives, pumps, compressors, precision gearboxes, and other equipment requiring high thrust capacity and precise shaft guidance. Key specs include bore diameter 90 mm, outside diameter 190 mm, width 43 mm; dynamic radial load rating 40,000 lbf (177,000 N); static radial load rating 30,500 lbf (135,000 N); radial internal clearance C3; weight 13.76 lb (6.247 kg); limiting speeds 2,500 rpm (grease) and 2,860 rpm (oil); ball piloted pressed brass cage; steel balls; maximum shaft fillet radius 0.118 in (3 mm); Series 7300; ISO P0 precision. It is commonly used in machine tool spindles, industrial gearboxes, pumps, compressors, electric motors, and precision manufacturing equipment, and is compatible with replacements such as SKF 7318 BECBM, NSK 7318AW, and NTN 7318U.