Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings


Bearing No. 4TR785B

Specification data (main 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 : Y33.80
Axial load factors : Y02.50
Constant e0.26

Mounting dimensions,weight (reference)

da(min.)(mm)846 mm
Da(max.)(mm)1009 mm
Da(max.)(mm)978 mm
S(min.)(mm)13 mm
ra(max.)(mm)7.5 mm
rb(max.)(mm)5 mm
Axial load factors : Y2(mm)2.55 mm
Axial load factors : Y33.80
Axial load factors : Y02.50
Constant e0.26
Mass(Refer.)(kg)1340 kg
JTEKT

2026/07/19