Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 48685/20

Specifications
(Boundary dimensions ...etc)

d(mm)142.875
D(mm)200.025
T(mm)41.275
B(mm)39.688
C(mm)34.130
r(min.)(mm)3.6
r1(min.)(mm)3.3
Basic load ratings : Cr(kN)307
Basic load ratings : C0r(kN)491
Fatigue load limit : Cu(kN)66.5
Limiting speeds(Grease lub.)(min-1)1700
Limiting speeds(Oil lub.)(min-1)2200
Load center spread : a(mm)38.4
Constant :e()0.34
Axial load factors : Y1()1.78
Axial load factors : Y0()0.98

Mounting dimensions

da(mm)156.0
db(mm)157.0
Da(mm)182.0
Db(mm)192.0
ra(max.)(mm)3.6
rb(max.)(mm)3.3

Refer.

(Refer.)Mass(kg) 3.84
JTEKT

2025/05/16