Koyo
FOR REFERENCE ONLY
  • Needle roller bearings
  • Radial needle roller and cage assemblies
  • Metric series
  • K,K.ZW
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Bearing No. K72X80X20

Specifications
(Boundary dimensions ...etc)

Fw(mm)72
Ew(mm)80
Bc(mm)20
Basic load ratings : Cr(kN)44.4
Basic load ratings : C0r(kN)90.7
Fatigue load limit : Cu(kN)14.5
Cage material P/S()S
Limiting speeds(Grease lub.)(min-1)3800
Limiting speeds(Oil lub.)(min-1)5800

Mounting dimensions

Recommended dimensions - Shaft : S(max.)(mm)72.000
Recommended dimensions - Shaft : S(min.)(mm)71.987
Recommended dimensions - Housing : H(max.)(mm)80.029
Recommended dimensions - Housing : H(min.)(mm)80.010

Refer.

(Refer.)Mass(kg) 0.084
JTEKT

2025/06/01