Koyo
FOR REFERENCE ONLY
  • Deep groove ball bearings
  • Single-row
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Bearing No. 6318NR

Specifications
(Boundary dimensions ...etc)

d(mm)90
D(mm)190
B(mm)43
r(min.)(mm)3
r1(min.)(mm)0.5
Basic load ratings : Cr(kN)178
Basic load ratings : C0r(kN)107
Fatigue load limit : Cu(kN)8.80
factor : f0()13.3
Limiting speeds(Grease lub.)(min-1)3500
Limiting speeds(Oil lub.)(min-1)4200
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)202.9
Dimensions of locating snap ring : f(±0.05)(mm)3.05

Mounting dimensions

da(min.)(mm)103
Da(max.)(mm)177
Dx(min.)(mm)205
Cy(max.)(mm)8.44
ra(max.)(mm)2.5
rb(max.)(mm)0.5

Refer.

(Refer.)Mass(kg) 4.91
JTEKT

2025/05/22