Share tips to improve the service life of slewing bearings

2020-01-10

Slewing bearings are delicate parts, but no matter how high-performance slewing bearings are, if they are used improperly, wear and corrosion of the slewing bearings will be added, and the expected effect will not be obtained. We should use the parts and conditions of use. The selection of standard size, accuracy and suitable slewing bearing in accordance with the environmental conditions is the condition to ensure the reversal support, the life and feasibility of the slewing bearing. The following editor will explain to us how to improve the service life and feasibility of the slewing bearing.

1. Keep the slewing bearing and its surrounding environment clean

Even if small dust invisible to the naked eye enters the turntable bearing, it will add wear, vibration and noise to the turntable bearing. The slewing bearing and its surrounding accessories should be kept clean, especially dust and dirt. Things and the working environment must also be kept clean.

2. Be careful when using the device

Strong punching is not allowed, hammers are not allowed to hit the slewing bearing directly, and pressure is not allowed to pass through the rolling elements.

3. Use appropriate and accurate devices

Try to use special items as much as possible and try to avoid using things like cloth and short fibers.

Fourth, avoid the corrosion of the turntable bearing

When picking up the slewing bearing directly by hand, wash away the sweat from your hands and apply high-quality mineral oil before proceeding. Pay special attention to rust prevention during the dry season and summer.

Five, use part

Tapered roller slewing bearings are suitable for receiving combined radial and axial loads based on radial loads. They are usually paired with two sets of slewing bearings. They are mainly used in front and rear hubs, active bevel gears, differentials, and decelerations of cars. Transmission parts.

Six, allowable speed

In a correct, smooth and good environment, it is allowed to be 0.3-0.5 times the limit speed of the turntable bearing. Under normal circumstances, 0.2 times the limit speed is appropriate.

Seven, allow skew angle

Tapered roller slewing bearings generally do not allow the shaft to be skewed relative to the housing hole. If there is skewing, it should not exceed 2'.

8. Allowable temperature

Under normal load, the smoothing agent has high temperature resistance and sufficient smoothness, the general slewing bearing is allowed to work at an ambient temperature of -30℃-150℃.