The Impact Of The Environment On The Strength Of KOYO Outer Spherical Bearings

The use environment of koyo bearings: Selecting specifications, dimensions, and accuracy according to the use location, use conditions, and environmental conditions, and matching appropriate outer spherical bearings are the prerequisites for ensuring the life and reliability of the bearings. Parts of use: Outer spherical 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 hubs of automobiles, driving bevel gears, differentials, and reduction gears. gear and other transmission parts. 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 koyo bearing. Under normal circumstances, 0.2 times the limit speed is optimal. Allowable inclination angle: Generally, outer spherical bearings do not allow the shaft to incline relative to the housing hole. If there is an inclination, the maximum shall not exceed 2′. Allowable temperature: Under normal load conditions, the lubricant has high temperature resistance and sufficient lubrication, generally koyo bearings are allowed to operate at ambient temperatures of -30°C to 150°C. How to ensure that koyo bearings operate normally during use, and how to ensure that the bearings are not damaged and have longer service life.

1. Selection and control of tolerances of shaft and bearing chamber: after the bearing is pressed into the outer spherical bearing, it should rotate flexibly without any sense of hindrance. If there is obvious rotational inflexibility, it means that the size of the shaft is too large and the tolerance needs to be reduced.

2. Bearing assembly method: Because koyo bearings are high-precision products, improper assembly can easily cause damage to the outer spherical bearing groove, leading to bearing damage.

3. Prevention of foreign matter in assembly: When the koyo bearing is installed on the rotor for dynamic balancing, it is easy for the iron filings generated during dynamic balancing to enter the inside of the bearing, so it is best to perform dynamic balancing before installing the bearing.

4. Prevention of paint rust: The characteristic of paint rust is that it mostly occurs in sealed motors. The motor sounds very good when assembled, but after being placed in the warehouse for some time, the abnormal noise of the motor becomes louder. Remove the outer spherical surface. The bearings are severely rusted.