Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings


Bearing No. M281649D/610/610D

Specification data (main dimensions, etc.)

d(mm)657.225
D(mm)933.450
T(mm)676.275
W(mm)676.275
r(min.)(mm)6.4
r1(min.)(mm)3.3
Basic load ratings : Cr(kN)18600
Basic load ratings : C0r(kN)46000
Fatigue load limit : Cu(kN)3510
Axial load factors : Y2(mm)2.03
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33

Mounting dimensions,weight (reference)

da(min.)(mm)713 mm
Da(max.)(mm)909 mm
Da(max.)(mm)864 mm
S(min.)(mm)9.5 mm
ra(max.)(mm)6.4 mm
rb(max.)(mm)3.3 mm
Axial load factors : Y2(mm)2.03 mm
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33
Mass(Refer.)(kg)1530 kg
JTEKT

2026/07/19