Koyo
FOR REFERENCE ONLY
  • Needle roller bearings
  • Radial needle roller and cage assemblies
  • Metric series
  • K,K.ZW
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Bearing No. K52X57X17H

Specifications
(Boundary 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/S()S
Limiting speeds(Grease lub.)(min-1)5200
Limiting speeds(Oil lub.)(min-1)8000

Mounting dimensions

Recommended dimensions - Shaft : S(max.)(mm)52.000
Recommended dimensions - Shaft : S(min.)(mm)51.987
Recommended dimensions - Housing : H(max.)(mm)57.029
Recommended dimensions - Housing : H(min.)(mm)57.010

Refer.

(Refer.)Mass(kg) 0.035
JTEKT

2025/06/01