18685/20

Tapered roller bearings - Single-row - Inch series

Specifications
(Boundary dimensions ...etc)

d
44.450 mm
D
79.375 mm
T
17.462 mm
B
17.462 mm
C
13.495 mm
r(min.)
2.8 mm
r1(min.)
1.6 mm
Basic load ratings : Cr
59.2 kN
Basic load ratings : C0r
59.1 kN
Fatigue load limit : Cu
8.65 kN
Limiting speeds(Grease lub.)
4800 min-1
Limiting speeds(Oil lub.)
6400 min-1
Load center spread : a
16.0 mm
Constant :e
0.37
Axial load factors : Y1
1.60
Axial load factors : Y0
0.88

Mounting dimensions

da
54.0 mm
db
49.5 mm
Da
71.0 mm
Db
74.0 mm
ra(max.)
2.8 mm
rb(max.)
1.6 mm

Refer.

(Refer.)Mass
0.340 kg

Technical calculation for this product.

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