Koyo
FOR REFERENCE ONLY
  • Needle roller bearings
  • Radial needle roller and cage assemblies
  • Metric series
  • K,K.ZW


Bearing No. K40X55X45H

Specification data (main dimensions, etc.)

Fw(mm)40
Ew(mm)55
Bc(mm)45
Basic load ratings : Cr(kN)103
Basic load ratings : C0r(kN)146
Fatigue load limit : Cu(kN)23.0
Cage material P/SS
Limiting speeds(Grease lub.)(min-1)7500
Limiting speeds(Oil lub.)(min-1)12000

Mounting dimensions,weight (reference)

Recommended dimensions - Shaft : S(max.)(mm)40.000 mm
Recommended dimensions - Shaft : S(min.)(mm)39.989 mm
Recommended dimensions - Housing : H(max.)(mm)55.029 mm
Recommended dimensions - Housing : H(min.)(mm)55.010 mm
Mass(Refer.)(kg)0.221 kg
JTEKT

2026/07/07