The size of the working clearance will directly affect its working performance and service life. The working clearance is affected by centrifugal force. Manufacturers and users mostly manufacture and select bearings based on the radial clearance. The clearance refers to the clearance when the linear bearing is in a stable operating state. Appropriate working clearance will help improve the research on the operating system, and the correlation of multiple factors is not considered. The calculated results deviate greatly from the actual. In fact, the temperature field of the bearing operation is non-uniform, and the three are correlational.
Generally, if bearings are used correctly, they can be used until their fatigue life is reached. However, there may be accidental premature damage and it may become intolerable to use. This early damage, as opposed to the fatigue life, is the quality usage limit called a failure or accident. Most of them are caused by carelessness in installation, use and lubrication, foreign matter invading from the outside, insufficient research on the thermal effects of the shaft and housing, etc.
During the operation of WXING bearings, there are many factors that affect its clearance, including temperature changes of linear bearings, centrifugal force and coordination, etc. During the working process, due to the influence of centrifugal force, fit and temperature, the working clearance changes. Sometimes the effects of the same three factors are not isolated from each other, but are interrelated. Therefore, only in this way can the influence of the three factors on the working clearance of the bearing be correctly reflected during actual operation, so that the clearance of the bearing can be reasonably determined to improve the working efficiency and operating accuracy of the bearing.
Regarding the damage status of HRB bearings, such as: jamming of roller bearing rings and ribs, the reasons can be considered as insufficient and unsuitable lubricant, defects in the oil supply and drainage structure, intrusion of foreign matter, linear bearing installation errors, shaft If the deflection is too large, these reasons may also overlap.
Selecting specifications, dimensions, accuracy, and matching appropriate bearings based on the use location, usage conditions, and environmental conditions are the prerequisites for ensuring bearing life and feasibility.
1. Application parts: Tapered roller bearings are suitable for bearing combined radial and axial loads, mainly radial loads. They are usually used in pairs with two sets of bearings. They are mainly used in the front and rear wheel hubs, driving bevel gears, and differentials of automobiles. transmission parts such as reducers and reducers.
2. Allowable speed: In an environment with correct installation and good lubrication, the allowable speed is 0.3-0.5 times the limit speed of the linear bearing. Under normal circumstances, 0.2 times the limit speed is optimal.
3. Allowable inclination angle: WXING bearings generally do not allow the shaft to incline relative to the housing hole. If there is an inclination, the maximum shall not exceed 2′.
4. Allowable temperature: Under normal load conditions, the lubricant has high temperature resistance and sufficient lubrication, general bearings are allowed to operate at ambient temperatures of -30°C to 150°C.