In order to make the bearing perform well, in addition to the precise installation, the daily maintenance of the bearing can not be separated, so as to ensure the long-term stable operation of the production.

The key to bearing maintenance is the lubrication of the bearing. There are several methods of bearing lubrication, which are mainly divided into grease lubrication and oil lubrication. Select the lubrication method suitable for the conditions of use. If lubrication is considered, the lubricity of oil lubrication is dominant, but grease lubricating oil can simplify the features of the structure around the bearing.

1.Grease lubrication

Grease lubrication can be used for a long time without replenishment after filling once, and the structure of the sealing device is relatively simple, so it is widely used. Grease lubrication includes a sealing method in which a sealed bearing is filled with grease in advance, and an appropriate amount of grease is filled in the housing. Filling and replenishing methods that are replenished at regular intervals. In addition, for machines with multiple bearings that require lubrication, pipes can be connected to each lubrication point to provide centralized lubrication.

(1) Filling amount of grease

The amount of grease filled in the shell varies with the structure and volume of the shell. Generally, it is advisable to fill to 1/3 to 1/2 of the volume. When the filling amount is excessive, the grease will deteriorate due to stirring and heating, aging and softening. Attention should be paid. However, for low-speed bearings, in order to prevent foreign matter from entering, it is sometimes filled to 2/3 to 1/2 of the volume.

(2) Replenishment and replacement of grease

The replenishment and replacement of grease has a close relationship with the lubrication method. No matter which method is used, clean grease must be used and the invasion of foreign objects must be prevented. As far as possible, the grease should be grease of the same brand. It is especially important when replenishing grease that it is ensured that the new grease does get inside the bearing.

In addition, when replenishing or replacing new grease, you should check whether the original grease has failed or there is a foreign substance in the grease. If it fails or contains foreign matter in the grease, clean the original grease and then clean the clean grease. Join.

2.Oil lubrication

Oil lubrication is broadly divided into oil bath lubrication, drip oil lubrication, splash lubrication, circulation lubrication, jet lubrication, oil mist lubrication, oil and gas lubrication. It is suitable for high-speed bearings and can withstand a certain degree of high temperature. The noise is effective, and it is mostly used in the places where grease lubrication is not applicable.