Grease in Bearings: The Importance of Choosing a Grease

Characteristics of anti-rust treatment
The grease used in the bearing should have the actual effect of anti-rust treatment, and the anti-rust oil should generally be insoluble in water. The grease should have excellent adhesion and can produce a layer of oil slick on the surface of the stainless steel plate, even if the grease is full of water. can be maintained.

Mechanical equipment reliability
The grease will become loose during machining and manufacturing, causing leakage. When there is a vibration application, the grease will be thrown into the bearing from the bearing seat. If the mechanical equipment of the grease is not reliable enough, the grease will continue to be thrown out of the bearing. That would cause reflective collapse of the soap structure and damage to the applied grease.

Skeleton Seal
The skeleton seal is essential to maintain bearings and lubricants to avoid external environmental pollution. No matter dirt or moisture in the body can penetrate into the bearing to prevent damage.

Proper installation and maintenance is a key element to give full play to the service life of the bearing. In addition, be sure to pay attention to the cleanliness of the bearing, the accuracy of bearing selection and the use of appropriate special tools for installation and maintenance. Bearings must be protected from air pollutants and internal moisture In order to avoid environmental pollution, it must be properly installed and lubricated. The design of the bearing configuration, the condition of the skeleton seal, the form of the lubricant and the lubrication cycle time, as well as professional maintenance, all play the same critical role.

blended grease
It is not necessary to mix incompatible greases. If two incompatible greases are mixed, the consistency of the mortar will generally become loose, and eventually it is likely to cause damage because the grease is very easy to flow out.

If you never know which kind of grease the bearing was originally used, you need to remove the old grease inside and outside the bearing first, and then add grease.

Classification of oils and fats
According to temperature and working standard difference:

Greases can be classified according to their allowable working temperature. The mortar consistency and lubricating performance of greases are affected by the working temperature. Bearings that are actually operated at a certain temperature must be selected to have proper mortar consistency and good lubrication at the same temperature. Effective grease. Grease is produced in different working temperature ranges, which can be distinguished as ultra-low temperature (LT), medium temperature (MT) and high temperature (HT) grease. In addition, there is a type of grease called EP (extrusion resistance). Compression molding) or EM, with additives to improve the compressive strength of lubricating oil slicks.

pick oil
If the grease is not selected correctly, all the countermeasures to prevent the bearing from being damaged are also my own opinion. It is very important to select a grease whose base oil viscosity should provide sufficient lubrication effect at the working temperature. The viscosity is mainly affected by temperature. It decreases as the temperature increases, and it increases when the temperature decreases. Therefore, it is necessary to understand the viscosity of the base oil at the working temperature. Machinery manufacturers generally formulate and apply certain types of greases, and most standard greases can be used. The scope is very broad.