Koyo
FOR REFERENCE ONLY
  • Cylindrical roller bearings
  • Single-row
  • NH


Bearing No. NH310R

Specification data (main 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)71.4
B1(mm)8
B2(mm)13

Mounting dimensions,weight (reference)

da(min.)(mm)59 mm
db(min.)(mm)- mm
db(max.)(mm)- mm
dc(min.)(mm)- mm
dd(min.)(mm)- mm
Da(max.)(mm)101 mm
Db(max.)(mm)- mm
Db(min.)(mm)- mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)1.351 kg
JTEKT

2026/07/08