This type of bearing is divided into single, double and four-row tapered roller bearings according to the number of rollers installed.
|
Model |
d /mm |
D /mm |
T /mm |
B /mm |
C /mm |
r /mm |
|
da /mm |
Da /mm |
Cr /kN |
C0r /kN |
nlim /r•min-1 |
nlim /r•min-1 |
|
30203 |
15 |
35 |
11.8 |
11 |
10 |
0.6 |
0.23 |
20 |
30 |
— |
— |
— |
— |
|
30302 |
15 |
42 |
14.3 |
13 |
11 |
1 |
0.19 |
21 |
36 |
22.8 |
21.5 |
9000 |
12000 |
|
30203 |
17 |
40 |
13.3 |
12 |
11 |
1 |
0.23 |
23 |
34 |
20.8 |
21.8 |
9000 |
12000 |
|
32203 |
17 |
40 |
17.3 |
16 |
14 |
1 |
0.21 |
23 |
34 |
— |
— |
— |
— |
|
30303 |
17 |
47 |
15.3 |
14 |
12 |
1 |
0.19 |
23 |
41 |
28.2 |
27.2 |
8500 |
11000 |
|
32303 |
17 |
47 |
20.3 |
19 |
16 |
1 |
0.19 |
23 |
41 |
35.2 |
36.2 |
8500 |
11000 |
|
32904 |
20 |
37 |
12 |
12 |
9 |
0.3 |
0.21 |
22.4 |
34.6 |
13.2 |
17.5 |
9500 |
13000 |
|
32004 |
20 |
42 |
15 |
15 |
12 |
0.6 |
0.25 |
25 |
37 |
25 |
28.2 |
8500 |
11000 |
|
30204 |
20 |
47 |
15.3 |
14 |
12 |
1 |
0.23 |
26 |
41 |
28.2 |
30.5 |
8000 |
10000 |
|
32204 |
20 |
47 |
19.3 |
18 |
15 |
1 |
0.22 |
26 |
41 |
— |
— |
— |
— |
Tapered roller bearings 32303 are separate bearings. inner diameter is 17mm, outer dimater is 47mm,width is 20.3mm.
Both the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into single, double and four-row tapered roller bearings according to the number of rollers installed. Single-row tapered roller bearings can support radial loads and axial loads in one direction. When the bearing is subjected to a radial load, an axial component will be generated, so when another bearing that can bear the axial force in the opposite direction is needed to be balanced.
The basic dimensions of FQN tapered roller bearings are listed in the dimensional data sheet,
Single-row tapered roller bearings:
Inner diameter size range: 20mm ～ 1270mm
Outer diameter range: 40mm ～ 1465mm
Width size range: 15mm ～ 240mm
Double-row tapered roller bearings:
Inner diameter size range: 38mm ～ 1560mm
Outer diameter range: 70mm ～ 1800mm
Width size range: 50mm ～ 460mm
Four-row tapered roller bearings:
Inner diameter size range: 130mm ～ 1600mm
Outer diameter size range: 200mm ～ 2000mm
Width size range: 150mm ～ 1150mm
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