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


Bearing No. 47T221817

Specification data (main dimensions, etc.)

d(mm)110
D(mm)180
T(mm)170
W(mm)170
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)1070
Basic load ratings : C0r(kN)1770
Fatigue load limit : Cu(kN)254
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)126 mm
Da(max.)(mm)174.5 mm
Da(max.)(mm)162 mm
S(min.)(mm)6.5 mm
ra(max.)(mm)1 mm
rb(max.)(mm)1 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)17 kg
JTEKT

2026/07/18