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

Bearing No. NU310R

Specifications
(Boundary dimensions ...etc)

d(mm)50
D(mm)110
B(mm)27
r(min.)(mm)2
r1(min.)(mm)2
Fw(mm)65
Ew(mm)-
Basic load ratings : Cr(kN)138
Basic load ratings : C0r(kN)113
Fatigue load limit : Cu(kN)16.0
Limiting speeds(Grease lub.)(min-1)5500
Limiting speeds(Oil lub.)(min-1)7400
sd1(mm)-
B1(mm)-
B2(mm)-

Mounting dimensions

da(min.)(mm)-
db(min.)(mm)59
db(max.)(mm)63
dc(min.)(mm)-
dd(min.)(mm)-
Da(max.)(mm)101
Db(max.)(mm)-
Db(min.)(mm)-
ra(max.)(mm)2
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 1.15
JTEKT

2025/06/01