a. In order to stabilize the revolution movement of the cage, it is necessary to use a ferrule guidance method and pay sufficient attention to the guide surface, improve the tapered roller bearing structure under high-speed conditions, and change the roller-guided L-type cage. Z-type cage guide for ferrule ribs.
B. When the bearing rotates at a high speed, the vibration amplitude of the cage of a bearing with a large pocket gap is much larger than that of a cage with a small pocket gap, so the value of the pocket gap is particularly important.
C. Pay attention to minimize the radial clearance.
D. Try to improve the manufacturing accuracy of the retainer price, improve the surface quality of the cage, and help reduce the noise caused by the collision or friction between the rolling elements and the cage.
E. Actively adopt advanced cleaning technology to effectively and thoroughly clean parts and assembled products to improve the cleanliness of bearings.
When the bearing is operated under radial load, only a few rolling elements bear the load inside. Due to the "spring" support formed by the elastic contact with the ferrule, the rolling element generates periodic vibration through the radial load line of action, The center of the shaft will therefore move vertically or horizontally, causing noise. This type of vibration is called rolling body vibration, and it is more obvious when running at low speed.