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


Bearing No. N312

Specification data (main dimensions, etc.)

d(mm)60
D(mm)130
B(mm)31
r(min.)(mm)2.1
r1(min.)(mm)2.1
Fw(mm)-
Ew(mm)113
Basic load ratings : Cr(kN)155
Basic load ratings : C0r(kN)126
Fatigue load limit : Cu(kN)17.3
Limiting speeds(Grease lub.)(min-1)4700
Limiting speeds(Oil lub.)(min-1)6300
sd1(mm)-
B1(mm)-
B2(mm)-

Mounting dimensions,weight (reference)

da(min.)(mm)71 mm
db(min.)(mm)- mm
db(max.)(mm)- mm
dc(min.)(mm)- mm
dd(min.)(mm)- mm
Da(max.)(mm)- mm
Db(max.)(mm)119 mm
Db(min.)(mm)116 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)1.78 kg
JTEKT

2026/07/10