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


Bearing No. K45X53X20H

Specification data (main dimensions, etc.)

Fw(mm)45
Ew(mm)53
Bc(mm)20
Basic load ratings : Cr(kN)36.0
Basic load ratings : C0r(kN)59.5
Fatigue load limit : Cu(kN)9.45
Cage material P/SS
Limiting speeds(Grease lub.)(min-1)6200
Limiting speeds(Oil lub.)(min-1)9600

Mounting dimensions,weight (reference)

Recommended dimensions - Shaft : S(max.)(mm)45.000 mm
Recommended dimensions - Shaft : S(min.)(mm)44.989 mm
Recommended dimensions - Housing : H(max.)(mm)53.029 mm
Recommended dimensions - Housing : H(min.)(mm)53.010 mm
Mass(Refer.)(kg)0.054 kg
JTEKT

2026/07/19