Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. LM247748D/710/710D

Specifications
(Boundary dimensions ...etc)

d(mm)244.475
D(mm)327.025
T(mm)193.675
W(mm)193.675
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)1690
Basic load ratings : C0r(kN)3780
Fatigue load limit : Cu(kN)406
Axial load factors : Y2(mm)2.10
Axial load factors : Y3()3.13
Axial load factors : Y0()2.06
Constant e()0.32

Mounting dimensions

da(min.)(mm)265
Da(max.)(mm)313
Da(max.)(mm)305
S(min.)(mm)7.5
ra(max.)(mm)3.2
rb(max.)(mm)1.6
Axial load factors : Y2(mm)2.10
Axial load factors : Y3()3.13
Axial load factors : Y0()2.06
Constant e()0.32

Refer.

(Refer.)Mass(kg) 44.4
JTEKT

2025/06/10