Koyo
FOR REFERENCE ONLY
  • Deep groove ball bearings
  • Single-row
>

Bearing No. 6909NR

Specifications
(Boundary dimensions ...etc)

d(mm)45
D(mm)68
B(mm)12
r(min.)(mm)0.6
r1(min.)(mm)0.6
Basic load ratings : Cr(kN)17.7
Basic load ratings : C0r(kN)10.9
Fatigue load limit : Cu(kN)0.600
factor : f0()15.9
Limiting speeds(Grease lub.)(min-1)9700
Limiting speeds(Oil lub.)(min-1)11000
Dimensions of snap ring groove : D1(max.)(mm)
Dimensions of snap ring groove : a(max.)(mm)
Dimensions of snap ring groove : b(±0.05)(mm)
Dimensions of snap ring groove : r0(max.)(mm)
Dimensions of locating snap ring : D2(min.)(mm)70.8
Dimensions of locating snap ring : f(±0.05)(mm)0.8

Mounting dimensions

da(min.)(mm)49
Da(max.)(mm)64
Dx(min.)(mm)72
Cy(max.)(mm)2.3
ra(max.)(mm)0.6
rb(max.)(mm)0.6

Refer.

(Refer.)Mass(kg) 0.132
JTEKT

2025/05/09