30311DJR

Tapered roller bearings - Single-row - Metric series

Specifications
(Boundary dimensions ...etc)

d
55 mm
D
120 mm
T
31.5 mm
B
29 mm
C
21 mm
r(min.)
2.5 mm
r1(min.)
2 mm
Basic load ratings : Cr
161 kN
Basic load ratings : C0r
148 kN
Fatigue load limit : Cu
22.3 kN
Limiting speeds(Grease lub.)
2900 min-1
Limiting speeds(Oil lub.)
4000 min-1
Load center spread : a
38.4 mm
Constant e
0.83
Axial load factors : Y1
0.73
Axial load factors : Y0
0.40

Mounting dimensions

da(min.)
67 mm
db(max.)
68 mm
Da(max.)
108 mm
da(min.)
94 mm
db(min.)
113 mm
Sa(min.)
4 mm
Sb(min.)
10.5 mm
ra(max.)
2 mm
rb(max.)
2 mm

Refer.

(Refer.)Mass
1.59 kg

Technical calculation for this product.

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