Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. LM742749D/714/714D

Specifications
(Boundary dimensions ...etc)

d(mm)215.900
D(mm)288.925
T(mm)177.800
W(mm)177.800
r(min.)(mm)3.2
r1(min.)(mm)0.8
Basic load ratings : Cr(kN)1310
Basic load ratings : C0r(kN)3120
Fatigue load limit : Cu(kN)381
Axial load factors : Y2(mm)1.40
Axial load factors : Y3()2.09
Axial load factors : Y0()1.37
Constant e()0.48

Mounting dimensions

da(min.)(mm)229
Da(max.)(mm)276
Da(max.)(mm)265
S(min.)(mm)5.5
ra(max.)(mm)3.2
rb(max.)(mm)0.8
Axial load factors : Y2(mm)1.40
Axial load factors : Y3()2.09
Axial load factors : Y0()1.37
Constant e()0.48

Refer.

(Refer.)Mass(kg) 32.8
JTEKT

2025/06/01