2013年8月3日星期六

Based on the ball rack industry long-term exploration and practice,


Roller bearing ball rack cage pockets and ball between the circumferential and axial contact points, both friction and wear, but also violent collision, which affect not only the movement of the bearing cage, dynamic characteristics and stability, but also directly affect the bearing performance and even cause cage fracture. For high-speed angular contact ball bearing cage fatigue fracture problem studied the dynamics of the cage and the stress distribution. Ball and cage lintel and side impact beams are simplified to the rod and beam particle collision, and the collision with the target body as a body on a collision course with a vibration load of the interaction system, the establishment of the ball / cage collision mechanical model. This modeling method convenient and simple, and can be linear elastic collision analytical solution. According to kinematics and load distribution, of the ball cage on the basis of cause of the collision, the ball frame collision model established using the ball bearing ball / cage impact characteristics studied, calculated by the impact load, and affect the ball / cage collision load factor, especially relative skew rings were analyzed.
            Based on the ball rack industry long-term exploration and practice, Dongsheng ball has formed a good stock of imports bearing structure. Wherein in machinery and equipment, metallurgy, mining, petroleum, power, paper series applications is available accumulated valuable experience in the industry with leading edge.    Only 25 percent performance ball bearings depending on the quality. Other factors, such as installation, lubrication and maintenance is actually the greatest impact on bearing life. Its ball production process must pay attention to the following:
      1, 2 improper lubrication, contamination
Therefore, manufacturers usually use the ball to be regular maintenance and inspection, to make the bearing life greatly increased.

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