Koyo
FOR REFERENCE ONLY
  • Cylindrical roller bearings
  • Single-row
  • NU
>

Bearing No. NU3221

Specifications
(Boundary dimensions ...etc)

d(mm)105
D(mm)190
B(mm)65.1
r(min.)(mm)2.1
r1(min.)(mm)2.1
Fw(mm)126.8
Ew(mm)-
Basic load ratings : Cr(kN)431
Basic load ratings : C0r(kN)482
Fatigue load limit : Cu(kN)64.3
Limiting speeds(Grease lub.)(min-1)2600
Limiting speeds(Oil lub.)(min-1)3900
sd1(mm)-
B1(mm)-
B2(mm)-

Mounting dimensions

da(min.)(mm)-
db(min.)(mm)116
db(max.)(mm)124
dc(min.)(mm)-
dd(min.)(mm)-
Da(max.)(mm)179
Db(max.)(mm)-
Db(min.)(mm)-
ra(max.)(mm)2
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 8.00
JTEKT

2025/06/01