120BAR10DB Back To Back Angular Contact Ball Bearing 120×180×54mm for CNC Machine Product Overview 120BAR10DB is a back-to-back(DB) matched set of angular contact thrust ball bearing with 30° contact angle. Made of GCr15 bearing steel, this open precision bearing is pre-configured for high speed operation, delivers high axial stiffness and handles bidirectional axial loads. It is widely used for ball screw support on high precision CNC machine tools. *Need a quick quote? Just