Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series


Bearing No. 64433R/700

Specification data (main dimensions, etc.)

d(mm)109.992
D(mm)177.800
T(mm)41.275
B(mm)41.275
C(mm)30.162
r(min.)(mm)3.6
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)294
Basic load ratings : C0r(kN)380
Fatigue load limit : Cu(kN)53.4
Limiting speeds(Grease lub.)(min-1)2000
Limiting speeds(Oil lub.)(min-1)2700
Load center spread : a(mm)42.8
Constant :e0.52
Axial load factors : Y11.16
Axial load factors : Y00.64

Mounting dimensions,weight (reference)

da(mm)128.0 mm
db(mm)121.0 mm
Da(mm)160.0 mm
Db(mm)172.6 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)3.79 kg
JTEKT

2026/07/31