Koyo
FOR REFERENCE ONLY
  • Cylindrical roller bearings
  • Single-row
  • NJ
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Bearing No. NJ234R

Specifications
(Boundary dimensions ...etc)

d(mm)170
D(mm)310
B(mm)52
r(min.)(mm)4
r1(min.)(mm)4
Fw(mm)207
Ew(mm)-
Basic load ratings : Cr(kN)754
Basic load ratings : C0r(kN)802
Fatigue load limit : Cu(kN)98.7
Limiting speeds(Grease lub.)(min-1)1900
Limiting speeds(Oil lub.)(min-1)2200
sd1(mm)-
B1(mm)-
B2(mm)-

Mounting dimensions

da(min.)(mm)-
db(min.)(mm)186
db(max.)(mm)204
dc(min.)(mm)-
dd(min.)(mm)-
Da(max.)(mm)294
Db(max.)(mm)-
Db(min.)(mm)-
ra(max.)(mm)3
rb(max.)(mm)3

Refer.

(Refer.)Mass(kg) 19.2
JTEKT

2025/06/01