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


Bearing No. K63X71X20

Specification data (main dimensions, etc.)

Fw(mm)63
Ew(mm)71
Bc(mm)20
Basic load ratings : Cr(kN)41.4
Basic load ratings : C0r(kN)79.4
Fatigue load limit : Cu(kN)12.7
Cage material P/SS
Limiting speeds(Grease lub.)(min-1)4400
Limiting speeds(Oil lub.)(min-1)6700

Mounting dimensions,weight (reference)

Recommended dimensions - Shaft : S(max.)(mm)63.000 mm
Recommended dimensions - Shaft : S(min.)(mm)62.987 mm
Recommended dimensions - Housing : H(max.)(mm)71.029 mm
Recommended dimensions - Housing : H(min.)(mm)71.010 mm
Mass(Refer.)(kg)0.070 kg
JTEKT

2026/07/18