Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 4TR19B

Specifications
(Boundary dimensions ...etc)

d(mm)482.600
D(mm)615.950
T(mm)330.200
W(mm)330.200
r(min.)(mm)6.4
r1(min.)(mm)4.8
Basic load ratings : Cr(kN)5670
Basic load ratings : C0r(kN)15000
Fatigue load limit : Cu(kN)1340
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)509
Da(max.)(mm)593
Da(max.)(mm)573
S(min.)(mm)10.5
ra(max.)(mm)6.4
rb(max.)(mm)4.8
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) 243
JTEKT

2025/06/01