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

Bearing No. K40X47X18

Specifications
(Boundary dimensions ...etc)

Fw(mm)40
Ew(mm)47
Bc(mm)18
Basic load ratings : Cr(kN)28.0
Basic load ratings : C0r(kN)45.6
Fatigue load limit : Cu(kN)7.25
Cage material P/S()S
Limiting speeds(Grease lub.)(min-1)7000
Limiting speeds(Oil lub.)(min-1)11000

Mounting dimensions

Recommended dimensions - Shaft : S(max.)(mm)40.000
Recommended dimensions - Shaft : S(min.)(mm)39.989
Recommended dimensions - Housing : H(max.)(mm)47.025
Recommended dimensions - Housing : H(min.)(mm)47.009

Refer.

(Refer.)Mass(kg) 0.041
JTEKT

2025/06/01