Zhejiang Waxing Electromechanical Co., Ltd is one of the most professional manufacturers and suppliers of 3310 2rsc3 angular contact ball bearings in China. Welcome to buy high quality customized bearings made in China here from our factory. For price consultation, contact us.
|
mm |
mm |
mm |
Dynamic |
Static |
||
|
3302 C3 |
15 |
42 |
19 |
15 100 |
8 150 |
0.13 |
|
3302 2RSC3 |
15 |
42 |
19 |
15 100 |
8 150 |
0.13 |
|
3303 2RSC3 |
17 |
47 |
22.2 |
21 200 |
12 500 |
0.18 |
|
3303 2ZC3 |
17 |
47 |
22.2 |
21 200 |
12 500 |
0.18 |
|
3304 2RSC3 |
20 |
52 |
22.2 |
22 100 |
14 300 |
0.22 |
|
3304 2ZC3 |
20 |
52 |
22.2 |
22 100 |
14 300 |
0.22 |
|
3305 2RSC3 |
25 |
62 |
25.4 |
31 200 |
20 800 |
0.35 |
|
3305 2ZC3 |
25 |
62 |
25.4 |
31 200 |
20 800 |
0.35 |
|
3306 C3 |
30 |
72 |
30.2 |
41 000 |
28 500 |
0.53 |
|
3306 2RSC3 |
30 |
72 |
30.2 |
41 000 |
28 500 |
0.53 |
|
3306 2ZC3 |
30 |
72 |
30.2 |
41 000 |
28 500 |
0.53 |
|
3307 C3 |
35 |
80 |
34.9 |
48 800 |
34 000 |
0.73 |
|
3307 2RSC3 |
35 |
80 |
34.9 |
48 800 |
34 000 |
0.73 |
|
3307 2ZC3 |
35 |
80 |
34.9 |
48 800 |
34 000 |
0.73 |
|
3308 2RSC3 |
40 |
90 |
36.5 |
59 200 |
43 000 |
0.95 |
|
3309 2RSC3 |
45 |
100 |
39.7 |
72 100 |
73 500 |
1.4 |
|
3310 2RSC3 |
50 |
110 |
44.4 |
88 000 |
96 500 |
1.95 |
|
3311 2RSC3 |
55 |
120 |
49.2 |
95 200 |
108 000 |
2.55 |
The so-called angular contact bearings are point-to-center angular contact bearings, commonly used such as angular contact ball bearings, tapered roller bearings, etc. This type of bearing has single row or multiple rows, and the single row bearing will be discussed below. For angular contact bearings, due to the contact angle a between the normal line and the radial direction at the contact point between the rolling element and the outer ring raceway, when the radial load Fr is applied, an additional axial force Fs ( Fs = SFsi ) will be derived, as shown in Figure 1 Show.
It can be seen from Figure 1 that Fs acts on the shaft through the inner ring, so it should be used in pairs. When used in pairs, it involves the arrangement of the bearings.
1 configuration method
1.1 Arrangement of angular contact ball bearings
Angular contact ball bearings have two structures: one is the commonly used bearings with locks on the outer ring (type 70000), as shown in Figure 2 (a); the other is bearings with locks on the inner ring, such as B70000 and SN70000 type, as shown in Figure 2(b).
2.1.1 Angular contact ball bearings with locks on the outer ring
If the two sets of bearings are installed on the two fulcrums of the same shaft (assuming the shaft is a short shaft, and the fulcrum is fixed in one direction at both ends), there are two configuration methods: one is positive installation (positive configuration), or It is called face-to-face installation, as shown in Figure 3(a), the narrow sides of the outer rings of the two bearings face each other in this arrangement, on the other hand, the load action centers a and b of the two bearings (that is, the load of each rolling element in the bearing The intersection point of the vector and the shaft centerline), falling within the support span point c, d (that is, the intersection point of the radial plane where the midpoint of the bearing width is located and the shaft centerline); the other is reverse installation (negative configuration) , as shown in Figure 3(b), or called back-to-back installation, the wide sides of the outer rings of the two bearings face each other in this configuration, and the load action centers a and b of the two bearings fall outside the support span points c and d.
In use, in order to improve the rigidity and rotation accuracy of the support, and sometimes to withstand large radial and axial loads, two sets of single row angular contact ball bearings are often installed on the same fulcrum. The commonly used configuration types: One is positive installation , as shown in Figure 4(a), or face-to-face installation, the narrow sides of the outer rings of the two bearings face each other in this arrangement, and from the other side, the load action centers a and b of the two bearings fall to the support span point c , within d; the second is reverse installation, as shown in Figure 4(b), or back-to-back installation, this configuration is that the wide sides of the outer rings of the two bearings are opposite, and from the load action centers a and b of the two bearings, It falls outside the support span points c , d .
From the above, it can be known that the angular contact ball bearings with locks on the outer ring, regardless of whether the two bearings are mounted on two fulcrums or one point, the configuration forms can be divided into:
(1) Divided according to the relative width and narrow sides of the outer rings, the narrow sides of the outer rings of the two bearings are opposite to each other, which means positive installation, and the wide sides of the two bearing outer rings are opposite to each other, which means reverse installation.
(2) According to the position of the load action centers a and b of the two bearings relative to the support span points c and d, the load action centers a and b of the two bearings fall within the support span points c and d for positive installation ; Conversely, if the load action centers a and b of the two bearings fall outside the support span points c and d, it is a reverse installation.
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