Koyo
FOR REFERENCE ONLY
  • Cylindrical roller bearings
  • Single-row
  • NN
  • Tapered type


Bearing No. NN3064K

Specification data (main dimensions, etc.)

d(mm)320
D(mm)480
B(mm)121
r(min.)(mm)4
Fw(mm)-
Ew(mm)438
Basic load ratings : Cr(kN)1690
Basic load ratings : C0r(kN)2670
Fatigue load limit : Cu(kN)283
Limiting speeds(Grease lub.)(min-1)980
Limiting speeds(Oil lub.)(min-1)1200

Mounting dimensions,weight (reference)

da(min.)(mm)336 mm
da(max.)(mm)- mm
db(min.)(mm)- mm
Da(max.)(mm)464 mm
da(min.)(mm)442 mm
ra(max.)(mm)3 mm
Mass(Refer.)(kg)74.0 kg
JTEKT

2026/07/06