2580/20

Tapered roller bearings - Single-row - Inch series

Specifications
(Boundary dimensions ...etc)

d
31.750 mm
D
66.421 mm
T
25.400 mm
B
25.357 mm
C
20.638 mm
r(min.)
0.8 mm
r1(min.)
3.2 mm
Basic load ratings : Cr
89.2 kN
Basic load ratings : C0r
85.1 kN
Fatigue load limit : Cu
12.7 kN
Limiting speeds(Grease lub.)
6000 min-1
Limiting speeds(Oil lub.)
8000 min-1
Load center spread : a
16.0 mm
Constant :e
0.27
Axial load factors : Y1
2.19
Axial load factors : Y0
1.21

Mounting dimensions

da
38.5 mm
db
37.5 mm
Da
57.0 mm
Db
62.5 mm
ra(max.)
0.8 mm
rb(max.)
3.2 mm

Refer.

(Refer.)Mass
0.404 kg

Technical calculation for this product.

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