57008R

Tapered roller bearings - Single-row - Metric series

Specifications
(Boundary dimensions ...etc)

d
20 mm
D
47 mm
T
15.25 mm
B
14 mm
C
12 mm
r(min.)
1 mm
r1(min.)
1 mm
Basic load ratings : Cr
34.2 kN
Basic load ratings : C0r
25.5 kN
Fatigue load limit : Cu
3.75 kN
Limiting speeds(Grease lub.)
9000 min-1
Limiting speeds(Oil lub.)
12000 min-1
Load center spread : a
12.9 mm
Constant e
0.52
Axial load factors : Y1
1.16
Axial load factors : Y0
0.64

Mounting dimensions

da(min.)
25.5 mm
db(max.)
26 mm
Da(max.)
41.5 mm
da(min.)
37 mm
db(min.)
44 mm
Sa(min.)
2 mm
Sb(min.)
3 mm
ra(max.)
1 mm
rb(max.)
1 mm

Refer.

(Refer.)Mass
0.125 kg

Technical calculation for this product.

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