The structure of the linear bearing is that a retainer is installed in the outer ring, and the retainer is equipped with a plurality of steel balls, and it moves in an infinite loop. Both ends of the retainer are fixed by inner spring retaining rings, and notched windows are provided on the linear rails where the steel balls work under force. This part is to make the loaded steel ball make rolling contact with the shaft. Relatively move with a very low coefficient of friction, so linear motion ball bearings are the most suitable bearings for mechanical equipment, automation equipment, energy-saving equipment, etc. Linear motion bearings are currently more and more widely used in general or special machinery industries such as electronics, machinery, instruments, robots, tool machinery, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, CNC machine tools, automobiles, etc. middle.
The advantages of using linear motion ball bearings: Since the flow contact can make the starting friction resistance and dynamic friction resistance extremely small, energy can be saved, and a higher motion speed linear bearing can be easily obtained.
The friction coefficient is not sensitive to the increase in load, so under heavy load, the friction coefficient is extremely small, and the accuracy is kept unchanged for a long time, and the service life of the machine can be maintained for a long time. Linear motion bearings have good interchangeability, convenient installation and time-saving, and make the mechanical structure novel, small and light.
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