It mainly bears large unidirectional axial load. The larger the contact angle, the greater the load bearing capacity. The cage material is steel plate, brass or engineering plastic, and the molding method is stamping or turning, which is selected depending on the bearing form or usage conditions. Others include combined angular contact ball bearings, double row angular contact ball bearings and four-point contact ball bearings.
Angular contact ball bearings can bear both radial and axial loads. Can work at higher speeds. The larger the contact angle, the higher the axial load capacity. High-precision and high-speed bearings usually have a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase. Single row angular contact ball bearings can only bear axial load in one direction. When bearing radial load, additional axial force will be caused. And it can only limit the axial displacement of the shaft or housing in one direction. If they are installed in pairs, make the outer rings of the pair of bearings face each other, that is, the wide end faces the wide end face, and the narrow end faces the narrow end face. This avoids causing additional axial forces and limits the axial play of the shaft or housing in both directions.
Model | Old model | Dimensions(mm) | Rated load(N) | Speed min-1 | Weight(kg) | ||||
---|---|---|---|---|---|---|---|---|---|
d | D | B | Cr | Cor | Grease lubrication | oil lubrication | (refer to) | ||
3302A-RS | - | 15 | 42 | 19 | - | - | - | - | - |
3302A-Z | - | 15 | 42 | 19 | - | - | - | - | - |
3303 | 3056303 | 17 | 47 | 22.2 | 21.7 | 17.1 | 9400 | 13000 | 0.192 |
3303A | 3256303 | 17 | 47 | 22.2 | - | - | - | - | - |
3303A-2RS | - | 17 | 47 | 22.2 | - | - | - | - | - |
3303A-2Z | - | 17 | 47 | 22.2 | - | - | - | - | - |
3303A-RS | - | 17 | 47 | 22.2 | - | - | - | - | - |
3303A-Z | - | 17 | 47 | 22.2 | - | - | - | - | - |
3304A | 3256304 | 20 | 52 | 22.2 | 24.7 | 15 | 8300 | 11000 | 0.23 |
3304A-2RS | - | 20 | 52 | 22.2 | - | - | - | - | - |
3304A-2Z | - | 20 | 52 | 22.2 | - | - | - | - | - |
3304A-RS | - | 20 | 52 | 22.2 | - | - | - | - | - |
3304A-Z | - | 20 | 52 | 22.2 | - | - | - | - | - |
3305A | 3256305 | 25 | 62 | 25.4 | 32.7 | 20.8 | 6900 | 9200 | 0.34 |
3305A-2RS | - | 25 | 62 | 25.4 | - | - | - | - | - |
3305A-2Z | - | 25 | 62 | 25.4 | - | - | - | - | - |
3305A-RS | - | 25 | 62 | 25.4 | - | - | - | - | - |
3305A-Z | - | 25 | 62 | 25.4 | - | - | - | - | - |
3306A | 3256306 | 30 | 72 | 30.2 | 41 | 28.5 | 5800 | 7700 | 0.51 |
3306A-2RS | - | 30 | 72 | 30.2 | - | - | - | - | - |