100BNR10ETDUELP4Y Super Precision High Speed Angular Contact

This NSK ROBUST series super-precision angular contact ball bearing features a 100mm bore, 150mm outside diameter, and 18° contact angle. Supplied as a duplex universal matched set with phenolic resin cage and extra light preload, meeting ISO Class 4 (ABEC 7) precision with special bore/OD tolerancing for set matching.

Designed for high-speed spindle applications in machine tools, precision grinders, and machining centers where accurate rotation and rigidity are critical. The duplex universal arrangement allows flexible mounting in back-to-back, face-to-face, or tandem configurations to accommodate varying load directions and stiffness requirements.