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6311-Z
The 6311-Z is a single-shielded deep groove ball bearing with a 55mm bore diameter, 120mm outside diameter, and 29mm width. The metal shield on one side protects against contamination while allowing for easier lubrication access on the open side.
Deep groove ball bearings are versatile radial bearings suitable for electric motors, gearboxes, pumps, and general industrial machinery. They accommodate moderate radial loads and limited axial loads in both directions at moderate to high speeds.
Interchange / cross reference
SKF 6311-ZJTIMKEN 311S
Cross-references are provided as a guide — verify dimensions and fit for your application.
Inner Diameter (ID)
55 mm
Outside Diameter (OD)
120 mm
Width
29 mm
Series
63
Bearing Type
Deep groove ball bearing
