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


Bearing No. K55X63X32

Specification data (main dimensions, etc.)

Fw(mm)55
Ew(mm)63
Bc(mm)32
Basic load ratings : Cr(kN)62.3
Basic load ratings : C0r(kN)129
Fatigue load limit : Cu(kN)20.0
Cage material P/SS
Limiting speeds(Grease lub.)(min-1)5000
Limiting speeds(Oil lub.)(min-1)7800

Mounting dimensions,weight (reference)

Recommended dimensions - Shaft : S(max.)(mm)55.000 mm
Recommended dimensions - Shaft : S(min.)(mm)54.987 mm
Recommended dimensions - Housing : H(max.)(mm)63.029 mm
Recommended dimensions - Housing : H(min.)(mm)63.010 mm
Mass(Refer.)(kg)0.108 kg
JTEKT

2026/07/14