What are the characteristics of engineering plastic bearings?
Plastic bearings are all lubricating material, long service life; 2, the use of plastic bearings will not occur rust and corrosion resistance; 3, the quality of plastic bearings is lighter than metal, which is more suitable for modern lightweight design trend; 4, the manufacturing cost of plastic bearings is lower than the metal type; plastic bearings are used in injection molding processing and comparison. It is suitable for mass production; 5, there is no noise in the operation of plastic bearings, and it has a certain absorption function; the material of the inner and outer ring of plastic bearings is generally used as the raw material of the engineering plastics, and some also has the wear resistance metal as the raw material. Generally, glass balls, stainless steel balls and ceramic balls are used for rolling elements. Retainers are made of glass fiber reinforced nylon 66 (PA66) and PE or higher performance engineering plastics. High precision plastic bearings generally adopt precision NC machining, and the bearings are better in rotation accuracy and tolerance. Most traditional plastic bearings are made by direct injection molding, which is cost-effective because of their convenience in forming. (pulley generally used this process) is suitable for low speed, medium load occasions. In the toy industry, fitness equipment industry, furniture industry, medical machinery industry, advertising industry, and weak chemical corrosion industry have been widely applied.