KOYO (JTEKT)

Bearing

6311-2RZ

Medium series deep groove ball bearing, 55mm bore, metal shielded both sides

·

Specifications

Bore (d)55.000 mm
Outer Diameter (D)120.000 mm
Width (B)29.000 mm
Seal Type2Z (Metal Shield)
Bearing TypeDeep Groove
Dynamic Load (C)71.500 kN
Static Load (C₀)44.000 kN
Speed — Grease5,700 RPM
Speed — Oil7,600 RPM
Temperature Range-30°C to 120°C
Rows1
ClearanceCN

Need help finding the right bearing?

Ask BearingBrain →

Need expert help with bearing selection, failure analysis, or application engineering?

Talk to a bearing engineer →

© 2026 BearingBrainMade by Adam