Spiral roller bearing is a rolling bearing whose rolling system uses spiral rollers wound with steel belts, hence its name. This kind of bearing has large elasticity and radial clearance, and can withstand large impact radial loads, but cannot bear axial loads. Its limit speed is low and it is mainly used in components with low rotation accuracy and often large impact loads, such as engineering machinery and construction machinery.
The main characteristics of spiral roller bearings are as follows:
1. Withstand large impact radial loads: Because the rolling system of spiral roller bearings uses spiral rollers wound with steel belts, their elasticity and radial clearance are large, and they can withstand large impact radial loads.
2. Larger radial clearance: The radial clearance of spiral roller bearings is larger, which means that it can compensate to a certain extent the radial displacement caused by installation errors, thermal expansion of the shaft, etc.
3. Suitable for parts with low rotational accuracy: Since the accuracy of spiral roller bearings is only an ordinary level and there is no other precision level, it is more suitable for parts with low rotational accuracy.
4. The inner ring axis and the outer ring axis are allowed to have an inclination of 0.5°: The installation of spiral roller bearings allows the inner ring axis and the outer ring axis to have an inclination of 0.5°, which can reduce the requirements for installation accuracy to a certain extent.
5. Lower limit speed: Because the rolling system of spiral roller bearings uses spiral rollers wound with steel belts, its limit speed is lower, so it is more suitable for low-speed running components.
In short, spiral roller bearings are rolling bearings with large elasticity and radial clearance that can withstand large impact radial loads. They are suitable for components with low rotation accuracy and often large impact loads.
