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


Bearing No. LM769349D/310/310D

Specification data (main dimensions, etc.)

d(mm)431.800
D(mm)571.500
T(mm)336.550
W(mm)336.550
r(min.)(mm)6.4
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)4610
Basic load ratings : C0r(kN)11300
Fatigue load limit : Cu(kN)1040
Axial load factors : Y2(mm)1.41
Axial load factors : Y32.10
Axial load factors : Y01.38
Constant e0.48

Mounting dimensions,weight (reference)

da(min.)(mm)463 mm
Da(max.)(mm)549 mm
Da(max.)(mm)534 mm
S(min.)(mm)7 mm
ra(max.)(mm)6.4 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.41 mm
Axial load factors : Y32.10
Axial load factors : Y01.38
Constant e0.48
Mass(Refer.)(kg)231 kg
JTEKT

2026/07/07