How To Choose Right Bearing Grease

61803-RS SKF Bearing

Rolling bearings are widely used in industrial production and are the basic accessory parts of mechanical equipment. The function of the rolling bearing is to convert the sliding friction between the shaft and the shaft seat into rolling friction. During the operation of the rolling bearing, the rolling friction will cause the bearing to heat up and wear. In order to reduce friction and damage, the rolling bearing needs to be lubricated during operation.

What lubrication method can be used for rolling bearings

1. Grease lubrication

2. Oil lubrication

Grease lubrication of rolling bearings

Rolling bearings use grease as the lubricating medium. Its advantages are that the grease has low fluidity, is not easy to leak, and the formed oil film has good strength, which is more conducive to the sealing use of rolling bearings. At the same time, the use of grease lubrication for rolling bearings can extend the lubrication maintenance time, making bearing maintenance easier.Rolling bearing lubrication with grease also has disadvantages. Compared with lubricating oil, grease has a larger frictional torque and is less suitable for rolling bearings that require high-speed operation. In addition, the grease lubrication method has poor cooling performance. If too much grease is added to the rolling bearing, the rolling bearing will overheat due to the stirring of the lubricant.