Milling machine is a more critical part of the workpiece processing process, which can complete a series of fine machining of the workpiece. In special cases, the milling machine needs to complete high-precision operation according to the requirements, it is necessary to choose the appropriate milling machine bearing, then what is the accuracy standard of the milling machine bearing? How do you choose? This article explains in detail.
Milling Machine Bearings
Bearing accuracy standard for milling machines
1, for the ordinary milling machine, you can choose P0 or P6 level bearings to meet the needs, this precision bearing can ensure the normal operation of the equipment, the service life is relatively long.
2, high-precision milling machine, it is recommended to choose P5 or higher precision grade bearings (such as P4, P2), the use of high-precision bearings can significantly improve the processing accuracy and stability of the equipment.
3, in the application of high-speed milling machine, it is recommended to choose high-precision bearings such as P4 and P2, which can maintain stable performance at high speed while effectively reducing vibration noise.
What are the bearing accuracy requirements for milling machines?
1. Dimensional accuracy
1. The dimensional accuracy includes the allowable deviation of the inner diameter, outer diameter, width and assembly width, according to which the installation accuracy of the bearing and the shaft and the housing can be determined.
2. The chamfer size allows the limit value, which can determine the smoothness of the favorite bearing installation and use.
3. The width is allowed to vary, and this data will affect the stability of the bearing under load.
2. Rotation accuracy
1. The inner and outer rings allow radial runout and axial runout range, which affects the bearing rotation smoothness.
2. The inner ring allows transverse runout, which can reduce the vibration noise during the bearing rotation.
3. The inclination of the outer diameter surface allows for variation, which can make the bearing rotate without additional friction due to tilt.
4. The thickness of thrust bearing raceway allows variation, which determines the bearing bearing capacity, which is very important for the stability of the milling machine.
Milling machine bearing selection guide
Selecting the right bearing for the milling machine is critical to ensuring optimum performance, service life and accuracy. Choosing the right bearings for milling machines requires consideration of load type, speed, accuracy requirements, environmental factors, temperature and maintenance needs. By understanding these factors to determine the type of bearing that meets the conditions, and then find a bearing manufacturer that can produce the corresponding accuracy level, compare the quality and price, and purchase the bearings that meet the requirements. If you still do not know how to choose, you can consult the Bearing application engineer of vkuken, we will customize the bearing scheme according to customer needs, and if necessary, you can customize it according to demand.
