- Deep groove ball bearings
- Cylindrical roller bearings
- Aligning ball bearings
- Stainless steel bearings
- LNSERTED bearings
- Ball introduced
- Plain Bearings
- Needle Roller Bearings
- Angular contact ball bearings
- Thrust Roller Bearings
- Spherical roller bearings
- Thrust Ball Bearings
- Rolling mill bearings
- Tapered Roller Bearings
- Plastic bearings
- Linear motion bearings
| Bearing the importance of solving the noise of the life essence | |||
| 点击数：4369 日期：2014/4/4 | |||
| Often affects the entire mechanical noise, reduce the raceway can reduce the noise of the whole machine. Impact sound and its control method of rolling large models of ball bearings or cylindrical roller bearings under purely radial load and low speed operation, due to the centrifugal force of the rolling small, in the non load rolling will impact the holder or rolling road noise. But with the increase of rotational speed, the noise will disappear. On the rolling control method for impact sound: appropriate reduction of radial clearance, the use of reasonable structure and materials to keep imports the bearing frame compliance. A creak and control method of imported bearings creak metal friction sound cylindrical roller bearings are likely to occur in all cases of harsh, mostly in the larger models imported grease lubricated bearings, the grease base oil deterioration in more easily occurs, rarely occurs in oil lubricated when. In addition, more vulnerable in the winter, when under purely radial load, prone to big occasions in a radial clearance, and with the imported bearing different model sizes, easy to occur within a specific speed range, both continuous and intermittent. The outer ring raceway special processing methods can prevent creak appears, when necessary, can use the imported bearings, or appropriate reduction of radial clearance of imported bearings, using high performance greases and improve the matching parts and imported bearing rigidity. A calculation method and test Cham branch of two methods for estimating the fatigue life of imported bearings (1) the fatigue life of bearings required formula and calculation rules calculated as fatigue life calculation, the total numerical rules to rotate the inner ring or shaft (the outer ring or ring is fixed) numerical total rpm. (2) in accordance with the provisions of the standard test methods of rolling bearing fatigue life test procedures, in the use of performance to meet for a method under test machine requirements, sampling the fatigue life test of a batch of imported bearings, the actual test life obtained from the test data processing, the fatigue life of this batch of imported bearings the subjects represented the imported bearings. Rolling bearing fatigue life test is the maximum PI sufficient lubrication of inhibitory factors wear of rolling bearings, the load and speed enhancement to an enhanced fatigue life test method for outstanding import bearing fatigue factors. The calculation method of fatigue life and fatigue life test of imported bearings are complementary to each other, the two results are corresponding enough. But in reality, such as for each specific occasions, all selected imported bearing a sufficient number of life test, to verify the selected import bearings is appropriate, this is very big in the economy, time and amount of labor, so import bearing life test method was used only when necessary or important case, in most cases, the standard life calculation method to estimate the bearing service life, with a sufficient degree of dependency. |
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| On a message：Main components and layout tools Next information：Cleaning and maintenance considerations imported bearings | |||