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


Bearing No. 4TR676

Specification data (main dimensions, etc.)

d(mm)676
D(mm)910
T(mm)620
W(mm)620
r(min.)(mm)5
r1(min.)(mm)2
Basic load ratings : Cr(kN)15600
Basic load ratings : C0r(kN)43300
Fatigue load limit : Cu(kN)3310
Axial load factors : Y2(mm)2.03
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33

Mounting dimensions,weight (reference)

da(min.)(mm)724 mm
Da(max.)(mm)888 mm
Da(max.)(mm)849 mm
S(min.)(mm)13.5 mm
ra(max.)(mm)4 mm
rb(max.)(mm)2 mm
Axial load factors : Y2(mm)2.03 mm
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33
Mass(Refer.)(kg)1180 kg
JTEKT

2026/07/18