30311CR

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
22 mm
r(min.)
2.5 mm
r1(min.)
2 mm
Basic load ratings : Cr
180 kN
Basic load ratings : C0r
161 kN
Fatigue load limit : Cu
24.8 kN
Limiting speeds(Grease lub.)
3400 min-1
Limiting speeds(Oil lub.)
4500 min-1
Load center spread : a
29.8 mm
Constant e
0.55
Axial load factors : Y1
1.10
Axial load factors : Y0
0.60

Mounting dimensions

da(min.)
67 mm
db(max.)
70 mm
Da(max.)
108 mm
da(min.)
97 mm
db(min.)
112 mm
Sa(min.)
4.5 mm
Sb(min.)
9.5 mm
ra(max.)
2 mm
rb(max.)
2 mm

Refer.

(Refer.)Mass
1.58 kg

Technical calculation for this product.

For those who are considering the purchase of our products

Please contact us or find your nearest distributor