Precautions before and after installation of cylindrical roller bearing

Cylindrical roller bearing is an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient in the process of its movement, and ensure its rotation accuracy. There is a set of strict execution requirements when installing cylindrical roller bearing. The following are precautions before and after the bearing installation:

1、 Precautions before installation

1. Check the bearing for quality problems. Check the surface of bearing parts carefully for defects, such as indentation, burn, crack, etc. It is strictly forbidden to install parts with quality problems.

2. Ensure the installation site is clean and prevent foreign matters from entering the bearing.

3. Make sure that the bearing is clean, and do not install the bearing without cleaning.

4. Ensure sealing quality. Carefully check whether the model, specification and size of the seal are appropriate, whether there are defects or quality problems, whether the relevant accessories are complete, and whether the cooperation is reasonable.

2、 Precautions during installation

1. To avoid hard mounting and impact, it is necessary to install the bearing gently. The bearing and the seat hole are fitted with small clearance. In normal conditions, it is necessary to knock the end face slightly to install it in a positive position. It is more difficult to install the bearing by force impact, so that the surface of the bearing seat hole is damaged or even scrapped.

2. The inner sleeve of the bearing must be installed with induction heating and shall not exceed 120 ℃. It is strictly prohibited to heat and dismantle the bearing with open fire.

3. In case of poor installation, find out the causes, take reasonable measures after troubleshooting, repair in time in case of deformation of parts, and propose to modify drawings if necessary.

4. Inject sufficient and clean lubricating grease in strict accordance with the requirements.

5. When unqualified sealing and gland parts are found during installation, they must be scrapped or repaired strictly to ensure that the assembly quality meets the quality requirements.