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


Bearing No. 4TR1020

Specification data (main dimensions, etc.)

d(mm)1020
D(mm)1570
T(mm)900
W(mm)900
r(min.)(mm)7.5
r1(min.)(mm)7.5
Basic load ratings : Cr(kN)39200
Basic load ratings : C0r(kN)98800
Fatigue load limit : Cu(kN)6540
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)1172 mm
Da(max.)(mm)1534 mm
Da(max.)(mm)1413 mm
S(min.)(mm)21 mm
ra(max.)(mm)6 mm
rb(max.)(mm)6 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)6890 kg
JTEKT

2026/07/19