6311-C4 Deep groove ball bearing 55x120x29mm C4

The 6311-C4 is a deep groove ball bearing with a 55mm bore diameter, 120mm outside diameter, and 29mm width. It features C4 radial internal clearance, which is greater than C3 and provides additional expansion space for applications involving higher operating temperatures or interference fits.

Deep groove ball bearings are versatile components suitable for high-speed operation and applications with radial and moderate axial loads in both directions. Common applications include electric motors, gearboxes, pumps, and general industrial machinery where reliable, low-friction rotation is required.