Rexroth bearing is an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient in the process of its movement, and ensure its rotation accuracy.The outer ring of Rexroth bearing is boiled in high-temperature oil, and the outer ring will become larger. Then, install the ball and inner ring in turn when it is hot. After the outer ring is cooled, some of the balls are pressed in. First, install some of the balls, and then press the rest in with the machine.
Several methods of Rexroth bearing:
1. Press in
2. Hot expansion and cold contraction method
3. Few steel balls, roll to one side and press back on the holder
According to the different friction properties of moving elements, bearings can be divided into rolling bearings and sliding bearings. Rolling bearing has been standardized and serialized, but compared with sliding bearing, its radial size, vibration and noise are larger, and its price is higher. Generally, rolling bearing consists of four parts: outer ring, inner ring, rolling element and cage. According to the shape of rolling body, rolling bearing is divided into ball bearing and roller bearing.
Rexroth bearing function: in terms of its function, it should be support, i.e. literally used to support the shaft, but this is only a part of its function. The essence of support is to be able to bear radial load.It can also be understood that it is used to fix the shaft. The bearing quick, easy and excellent automatic selection is included. It is to fix the shaft so that it can only rotate, and control its axial and radial movement. The motor can't work without bearings. Because the shaft may move in any direction, while the motor requires that the shaft only rotate.