Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 4TR630B

Specifications
(Boundary dimensions ...etc)

d(mm)630
D(mm)920
T(mm)457.15
W(mm)457.15
r(min.)(mm)6
r1(min.)(mm)3
Basic load ratings : Cr(kN)12400
Basic load ratings : C0r(kN)26200
Fatigue load limit : Cu(kN)2230
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Mounting dimensions

da(min.)(mm)698
Da(max.)(mm)892
Da(max.)(mm)846
S(min.)(mm)11.5
ra(max.)(mm)5
rb(max.)(mm)2.5
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Refer.

(Refer.)Mass(kg) 1050
JTEKT

2025/06/01