Angular contact ball bearing sealing technology for noise prevention methods

Bearing noise is an important pollution source of the environment, but also need to control the bearing industry one of the important indicators, especially in household appliances, office machinery, instruments and meters with angular contact ball bearing noise limit is more outstanding. For nearly 10 years, China's bearing industry did a lot of work in terms of low bearing noise, make the bearing noise level has greatly improved, but compared with abroad, there is still a certain gap, users reflect the prominent is the 'vision', namely the bearing running in an irregular breaking voice, even scream. Many factors that affect bearing noise, is also very complex, needs from the integral design of the bearing, bearing of each part - — Inner ring and outer ring, cage, rolling body and lubricating oil ( Fat) To analysis and study, also need to be from the angular contact ball bearing, used materials, each parts 1 - 212 of the men in the course of art and engineering equipment and process materials to analysis and research. This is the basic content of bearing noise technology involved. Rolling bearing corrosion causes and prevention methods of rolling bearing corrosion is caused by a variety of internal and external factors, sum up the main are: 1, metal surface finish, The oxygen concentration cell corrosion) 。 2, metal materials chemical composition and the structure itself. 3, contact with the metal surface composition and pH value of solution; 4, environmental temperature and humidity. 5, and various environmental medium metal surface in contact. 6, the other person's sweat is the cause of corrosion caused by angular contact ball bearing, its pH value of 5 ~ 6. So in order to prevent hand sweat cause corrosion, installation and production personnel should wear gloves, don't contact with the hand rolling bearing. Tu rust-proof oil to prevent rust 1 rolling bearing, the immersion method: small rolling bearing by soaking in antirust oil, oil film thickness can be controlled by the antirust oil temperature or viscosity to achieve. Make a layer of anti-rust oil on its surface adhesion method. 2, brush, brush the note evenly daub on the surface of the rolling bearing, don't build up, also should pay attention to prevent leakage. 3, spray method: some big rust is not suitable for oil by soaking method, generally about 0. 7 mpa pressure filtering compressed air spraying where clean air. Spray method used solvent XiShiXing rust-proof oil or thin layer of anti-rust oil. This method must be used to perfect fire prevention and labor protection.