Koyo
FOR REFERENCE ONLY
  • Needle roller bearings
  • Drawn cup needle roller bearings
  • Inch series, caged
  • Open ends
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Bearing No. J-55

Specifications
(Boundary dimensions ...etc)

Fw(mm)7.938
D(mm)12.700
C(mm)7.92
Y(max)(mm)
Basic load ratings : Cr(kN)2.40
Basic load ratings : C0r(kN)2.01
Fatigue load limit : Cu(kN)0.340
Limiting speeds(Grease lub.)(min-1)18000
Limiting speeds(Oil lub.)(min-1)28000
Mounting inner ring()

Mounting dimensions

Refer.

(Refer.)Mass(kg) 0.003
JTEKT

2025/06/01