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


Bearing No. LM654648D/610/610D

Specification data (main dimensions, etc.)

d(mm)285.750
D(mm)380.898
T(mm)244.475
W(mm)244.475
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)2440
Basic load ratings : C0r(kN)5650
Fatigue load limit : Cu(kN)571
Axial load factors : Y2(mm)1.57
Axial load factors : Y32.34
Axial load factors : Y01.53
Constant e0.43

Mounting dimensions,weight (reference)

da(min.)(mm)303 mm
Da(max.)(mm)367 mm
Da(max.)(mm)356 mm
S(min.)(mm)6.5 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.57 mm
Axial load factors : Y32.34
Axial load factors : Y01.53
Constant e0.43
Mass(Refer.)(kg)75.6 kg
JTEKT

2026/07/19