303/28CR

Tapered roller bearings - Single-row - Metric series

Specifications
(Boundary dimensions ...etc)

d
28 mm
D
68 mm
T
19.75 mm
B
18 mm
C
14 mm
r(min.)
1.5 mm
r1(min.)
1.5 mm
Basic load ratings : Cr
64.6 kN
Basic load ratings : C0r
50.2 kN
Fatigue load limit : Cu
7.25 kN
Limiting speeds(Grease lub.)
6200 min-1
Limiting speeds(Oil lub.)
8200 min-1
Load center spread : a
17.8 mm
Constant e
0.55
Axial load factors : Y1
1.10
Axial load factors : Y0
0.60

Mounting dimensions

da(min.)
36.5 mm
db(max.)
37 mm
Da(max.)
59.5 mm
da(min.)
55 mm
db(min.)
64 mm
Sa(min.)
3 mm
Sb(min.)
4.5 mm
ra(max.)
1.5 mm
rb(max.)
1.5 mm

Refer.

(Refer.)Mass
0.332 kg

Technical calculation for this product.

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