The gearbox bearing is a key component inside the gearbox, which is used to fix, support, and rotate the gear shaft or connecting rod. It can reduce friction and noise between rotating parts, provide smooth operation, and extend the service life of the machine. Gear reducer bearings are usually composed of different types such as rolling bearings and cylindrical roller bearings. Common types of gear reducer bearings include deep groove ball bearings, self-aligning ball bearings, angular contact ball bearings, cylindrical roller bearings, self-aligning roller bearings, tapered curve roller bearings, etc. The sliding performance, quality, and service life of these bearings will affect the overall quality and performance of the gear reducer

The working principle of reducer bearings is to reduce friction and wear between rotating components by maintaining a certain pressure between the contact surfaces of the bearings. During the operation of the reducer, friction is generated between the bearing contact surfaces, leading to wear and heat generation. Therefore, the reducer bearing needs to generate a certain amount of floating during rotation to reduce friction, maintain lubricating oil, and prevent dust from entering the bearing and supporting gear shaft or connecting rod. The reducer bearings can also support and fix the gear shaft or connecting rod through rotation and axial force, ensuring the normal operation of the machine

In the selection of reducer bearings, factors such as load size and nature, load direction, etc. need to be considered. In addition, regular maintenance and upkeep of the gearbox bearings, such as replacing lubricants and checking for wear, are also key factors in maintaining their normal operation. In use, common faults of reducer bearings include scratches, scratches, pitting, peeling, wear, etc., which can be solved through installation methods, lubricants, seals, and other means