30300 Series — Series
9 bore sizes · 18 variants · 20–60 mm bore
9Base sizes
18Variants
5Brands
20–60 mmBore range
Part Number
Bore (d)
OD (D)
Width (B)
Dynamic Load
Static Load
Max Speed (grease)
Variants
30304
20 mm
52 mm
16.25 mm
19.1 kN
11.4 kN
8,400 rpm
2
30305
25 mm
62 mm
18.25 mm
27 kN
14.8 kN
7,200 rpm
2
30306
30 mm
72 mm
20.75 mm
33.7 kN
19 kN
6,000 rpm
2
30307
35 mm
80 mm
22.75 mm
39.8 kN
23.4 kN
5,400 rpm
2
30308
40 mm
90 mm
25.25 mm
49.2 kN
29.1 kN
4,800 rpm
2
30309
45 mm
100 mm
27.25 mm
63.2 kN
39 kN
4,200 rpm
2
30310
50 mm
110 mm
29.25 mm
74.2 kN
46.8 kN
3,780 rpm
2
30311
55 mm
120 mm
25 mm
68.5 kN
43 kN
3,360 rpm
2
30312
60 mm
130 mm
33.5 mm
98.4 kN
62.4 kN
3,000 rpm
2
Common Applications
Machine Types
- Heavy-duty wheel hubs (trucks, trailers)
- Industrial gearboxes
- Crane and hoist equipment
- Mining conveyors
- Paper mill equipment
- Large pumps and compressors
- Rolling mill equipment