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

Bearing No. 6221NR

Specifications
(Boundary dimensions ...etc)

d(mm)105
D(mm)190
B(mm)36
r(min.)(mm)2.1
r1(min.)(mm)0.5
Basic load ratings : Cr(kN)166
Basic load ratings : C0r(kN)105
Fatigue load limit : Cu(kN)5.70
factor : f0()14.4
Limiting speeds(Grease lub.)(min-1)3300
Limiting speeds(Oil lub.)(min-1)3900
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)116
Da(max.)(mm)179
Dx(min.)(mm)205
Cy(max.)(mm)8.44
ra(max.)(mm)2
rb(max.)(mm)0.5

Refer.

(Refer.)Mass(kg) 3.70
JTEKT

2025/05/10