30308JR

Tapered roller bearings - Single-row - Metric series

Specifications
(Boundary dimensions ...etc)

d
40 mm
D
90 mm
T
25.25 mm
B
23 mm
C
20 mm
r(min.)
2 mm
r1(min.)
1.5 mm
Basic load ratings : Cr
113 kN
Basic load ratings : C0r
101 kN
Fatigue load limit : Cu
15.5 kN
Limiting speeds(Grease lub.)
4500 min-1
Limiting speeds(Oil lub.)
6100 min-1
Load center spread : a
19.9 mm
Constant e
0.35
Axial load factors : Y1
1.74
Axial load factors : Y0
0.96

Mounting dimensions

da(min.)
50 mm
db(max.)
52 mm
Da(max.)
80 mm
da(min.)
77 mm
db(min.)
82 mm
Sa(min.)
3 mm
Sb(min.)
5 mm
ra(max.)
2 mm
rb(max.)
1.5 mm

Refer.

(Refer.)Mass
0.757 kg

Technical calculation for this product.

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