Low noise bearing grease, commonly known as bearing grease, is a thick grease-like semi-solid. It is used in the gap between the inner and outer rings of the bearing to play the role of lubrication, rust prevention and noise reduction. It is also used on metal surfaces to fill voids and prevent rust.
Product composition:
It is mainly made of mineral oil (or synthetic lubricating oil) and thickener. According to the thickening agent, it can be divided into two types: soap base grease and non-sapon base grease. The thickener of soap base grease is usually lithium, sodium, calcium, aluminum, zinc and other metal soaps, as well as potassium, barium, lead, manganese and other metal soaps. Graphite, carbon black and asbestos are used as thickeners for non-sapon-based grease. The main quality indicators are drip point, penetration, moisture, impurities, low temperature torque, corrosion resistance, etc. The indicators used to evaluate the colloidal stability of lubricating grease include oil separation test, rolling bearing performance test, etc. The roller test is a test method to test the consistency change under rolling. Flow test is a test method to evaluate the pumpability of lubricating grease at low temperature. Water leaching resistance test is a test method to evaluate the resistance of lubricating grease to water leaching. Colloid stability is the performance of lubricating grease to keep colloid stability during storage and use, and liquid mineral oil will not separate from the grease. Mechanical stability refers to the resistance of lubricating grease to the change of consistency under mechanical working conditions. The torque test of ball bearing is a test method to evaluate the low-temperature performance of lubricating grease.