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


Bearing No. NF320

Specification data (main dimensions, etc.)

d(mm)100
D(mm)215
B(mm)47
r(min.)(mm)3
r1(min.)(mm)3
Fw(mm)-
Ew(mm)185.5
Basic load ratings : Cr(kN)373
Basic load ratings : C0r(kN)337
Fatigue load limit : Cu(kN)47.2
Limiting speeds(Grease lub.)(min-1)2800
Limiting speeds(Oil lub.)(min-1)3700
sd1(mm)-
B1(mm)-
B2(mm)-

Mounting dimensions,weight (reference)

da(min.)(mm)113 mm
db(min.)(mm)- mm
db(max.)(mm)- mm
dc(min.)(mm)- mm
dd(min.)(mm)- mm
Da(max.)(mm)- mm
Db(max.)(mm)202 mm
Db(min.)(mm)190 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)7.79 kg
JTEKT

2026/07/07