Instructions for using single row self-aligning roller bearings

The usage methods of single row self-aligning roller bearings mainly include installation, debugging, lubrication, and maintenance. The following are specific steps and precautions:

1、 Installation

Heating installation

Heat the bearing to 80-100 ℃ to expand it for easy installation. Heating methods include using heating oil tanks, ovens, tempering furnaces, or inductive heaters.

When heating, ensure that the bearing is completely immersed in the heating medium and maintain uniform oil temperature.

The heating time depends on the size of the bearing, usually 30 minutes.

After heating, quickly install the bearing on the shaft and avoid difficulties in disassembly.

Installation of tapered hole self-aligning roller bearings

For tapered bore self-aligning roller bearings, a tightening sleeve, locking nut, or hydraulic nut can be used for installation.

During installation, ensure the cleanliness of the shaft and bearing seat, and apply an appropriate amount of lubricating oil.

When using a tightening sleeve, it should be installed on the shaft and fitted with a bearing, and then fixed with a locking nut or hydraulic nut.

Adjust the radial clearance of the bearing to achieve the installation clearance target value.

2、 Debugging

Check installation accuracy

After installation, check the radial and axial clearances of the bearings to ensure they are within the specified range.

Measure the clearance of the bearing using a specialized tool and record the measurement value.

Run and debug

After the installation of the bearing is completed, perform no-load operation debugging and observe the operation of the bearing.

Check if there are any abnormal sounds, vibrations, or temperature increases in the bearings.

If any abnormal situation is found, the machine should be stopped immediately for inspection and troubleshooting.

3、 Lubrication and maintenance

lubrication

Select appropriate lubricating grease or oil for lubrication according to the usage conditions and requirements of the bearing.

The filling amount of lubricating grease should be moderate, not too much or too little.

For high-speed running bearings, lubricating oil should be used for lubrication, and the cleanliness and viscosity of the lubricating oil should be ensured to meet the requirements.

maintain

Regularly check the operating status of bearings, including temperature, vibration, and noise.

If any abnormal increase in bearing temperature, intensified vibration, or increased noise is found, the machine should be stopped immediately for inspection and troubleshooting.

For bearings with severe wear, they should be replaced in a timely manner to avoid causing larger failures.

When disassembling bearings, special tools should be used to avoid damaging the bearings and shaft.

4、 Precautions

Avoid hitting

When installing and disassembling bearings, avoid using hard objects such as hammers to directly strike the bearings to avoid damaging them.

Maintain cleanliness

During installation and use, it is important to maintain the cleanliness of the bearings and shafts to prevent impurities and dirt from entering the interior of the bearings.

Choose the appropriate bearings

Select appropriate bearing types and specifications based on usage conditions and requirements to ensure the bearing's load-bearing capacity and service life.

In summary, the usage methods of single row self-aligning roller bearings include heating installation, debugging, lubrication, and maintenance. During use, it is necessary to strictly follow the operating procedures and precautions to ensure the normal operation and service life of the bearings.