Not only that, but the bearing will also affect the transmission. Some bearings are already lubricated, which are called pre-lubricated bearings.. In terms of its role, it should be support, but this is only part of its role. For example, the consequence of the motor without bearings is that it cannot work at all.
Because the shaft may move in any direction, and the motor is required to only rotate when it is working.Needle roller bearings are equipped with thin and long rollers (the length of the roller is 3-10 times the diameter, and the diameter is generally not greater than 5mm), so the radial structure is compact, and its inner diameter and load capacity are the same as other types of bearings.
In order to reduce this effect, good lubrication must be achieved on the bearings of the high-speed shaft. Most bearings must have lubricating oil. At this time, the journal surface and shell hole surface matching the bearing directly serve as the inner and outer rolling surfaces of the bearing to ensure load capacity and running performance Same as the bearing with ring, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be similar to the raceway of the bearing ring.
It can also be understood as it is used to fix the shaft. According to different applications, bearings without inner ring or needle roller and cage components can be selected. The smallest diameter, especially suitable for bearing results with limited radial installation dimensions.
It is to fix the shaft so that it can only achieve rotation, while controlling its axial and radial movement. Wholesale wheel bearing kits Otherwise, friction will not only increase energy consumption when running at high speeds, but the more terrible thing is that the bearings are easily damaged. This kind of bearing can only bear radial load. Theoretically speaking, it is impossible to achieve the role of transmission. The essence of support is to be able to bear radial loads
