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


Bearing No. 47T412821A

Specification data (main dimensions, etc.)

d(mm)206.375
D(mm)282.575
T(mm)210.000
W(mm)210.000
r(min.)(mm)3.2
r1(min.)(mm)0.8
Basic load ratings : Cr(kN)1480
Basic load ratings : C0r(kN)3010
Fatigue load limit : Cu(kN)374
Axial load factors : Y2(mm)1.57
Axial load factors : Y32.34
Axial load factors : Y01.53
Constant e0.43

Mounting dimensions,weight (reference)

da(min.)(mm)219 mm
Da(max.)(mm)270 mm
Da(max.)(mm)260 mm
S(min.)(mm)3.5 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)0.8 mm
Axial load factors : Y2(mm)1.57 mm
Axial load factors : Y32.34
Axial load factors : Y01.53
Constant e0.43
Mass(Refer.)(kg)36.2 kg
JTEKT

2026/07/18