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


Bearing No. 47T221815

Specification data (main dimensions, etc.)

d(mm)110
D(mm)180
T(mm)154
W(mm)154
r(min.)(mm)2
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)950
Basic load ratings : C0r(kN)1530
Fatigue load limit : Cu(kN)218
Axial load factors : Y2(mm)1.74
Axial load factors : Y32.59
Axial load factors : Y01.70
Constant e0.39

Mounting dimensions,weight (reference)

da(min.)(mm)127 mm
Da(max.)(mm)170 mm
Da(max.)(mm)162 mm
S(min.)(mm)5.9 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Axial load factors : Y2(mm)1.74 mm
Axial load factors : Y32.59
Axial load factors : Y01.70
Constant e0.39
Mass(Refer.)(kg)15.4 kg
JTEKT

2026/07/20