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


Bearing No. K40X45X18H

Specification data (main dimensions, etc.)

Fw(mm)40
Ew(mm)45
Bc(mm)18
Basic load ratings : Cr(kN)25.1
Basic load ratings : C0r(kN)50.4
Fatigue load limit : Cu(kN)8.00
Cage material P/SS
Limiting speeds(Grease lub.)(min-1)6900
Limiting speeds(Oil lub.)(min-1)11000

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)45.025 mm
Recommended dimensions - Housing : H(min.)(mm)45.009 mm
Mass(Refer.)(kg)0.031 kg
JTEKT

2026/07/05