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


Bearing No. K52X57X17H

Specification data (main dimensions, etc.)

Fw(mm)52
Ew(mm)57
Bc(mm)17
Basic load ratings : Cr(kN)21.4
Basic load ratings : C0r(kN)44.3
Fatigue load limit : Cu(kN)6.90
Cage material P/SS
Limiting speeds(Grease lub.)(min-1)5200
Limiting speeds(Oil lub.)(min-1)8000

Mounting dimensions,weight (reference)

Recommended dimensions - Shaft : S(max.)(mm)52.000 mm
Recommended dimensions - Shaft : S(min.)(mm)51.987 mm
Recommended dimensions - Housing : H(max.)(mm)57.029 mm
Recommended dimensions - Housing : H(min.)(mm)57.010 mm
Mass(Refer.)(kg)0.035 kg
JTEKT

2026/07/19