Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 4TR785B

Specifications
(Boundary dimensions ...etc)

d(mm)785.000
D(mm)1040
T(mm)560.000
W(mm)560.000
r(min.)(mm)7.5
r1(min.)(mm)5
Basic load ratings : Cr(kN)16400
Basic load ratings : C0r(kN)44400
Fatigue load limit : Cu(kN)3350
Axial load factors : Y2(mm)2.55
Axial load factors : Y3()3.80
Axial load factors : Y0()2.50
Constant e()0.26

Mounting dimensions

da(min.)(mm)846
Da(max.)(mm)1009
Da(max.)(mm)978
S(min.)(mm)13
ra(max.)(mm)7.5
rb(max.)(mm)5
Axial load factors : Y2(mm)2.55
Axial load factors : Y3()3.80
Axial load factors : Y0()2.50
Constant e()0.26

Refer.

(Refer.)Mass(kg) 1340
JTEKT

2025/06/01