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


Bearing No. 47T986339A

Specification data (main dimensions, etc.)

d(mm)490
D(mm)625
T(mm)385
W(mm)385
r(min.)(mm)4
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)6120
Basic load ratings : C0r(kN)17200
Fatigue load limit : Cu(kN)1510
Axial load factors : Y2(mm)2.43
Axial load factors : Y33.61
Axial load factors : Y02.37
Constant e0.28

Mounting dimensions,weight (reference)

da(min.)(mm)520 mm
Da(max.)(mm)607 mm
Da(max.)(mm)587 mm
S(min.)(mm)9.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)1.5 mm
Axial load factors : Y2(mm)2.43 mm
Axial load factors : Y33.61
Axial load factors : Y02.37
Constant e0.28
Mass(Refer.)(kg)290 kg
JTEKT

2026/07/21