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


Bearing No. K50X58X25H

Specification data (main dimensions, etc.)

Fw(mm)50
Ew(mm)58
Bc(mm)25
Basic load ratings : Cr(kN)46.5
Basic load ratings : C0r(kN)85.6
Fatigue load limit : Cu(kN)13.4
Cage material P/SS
Limiting speeds(Grease lub.)(min-1)5600
Limiting speeds(Oil lub.)(min-1)8600

Mounting dimensions,weight (reference)

Recommended dimensions - Shaft : S(max.)(mm)50.000 mm
Recommended dimensions - Shaft : S(min.)(mm)49.989 mm
Recommended dimensions - Housing : H(max.)(mm)58.029 mm
Recommended dimensions - Housing : H(min.)(mm)58.010 mm
Mass(Refer.)(kg)0.081 kg
JTEKT

2026/07/01