MinebeaMitsumi (NMB)

Bearing

51138 M

Single direction thrust ball bearing

MinebeaMitsumi (NMB) 51138 M

Specifications

Bore (d)190.000 mm
Outer Diameter (D)240.000 mm
Width (B)37.000 mm
Seal TypeOpen
Bearing TypeThrust
Dynamic Load (C)172.000 kN
Static Load (C₀)710.000 kN
Speed — Grease1,400 RPM
Speed — Oil2,000 RPM
Temperature Range-30°C to 120°C
Rows1
ClearanceCN/Normal

NMB equivalent

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