How does the needle roller bearing install the needle device

A needle-loading device for needle roller bearings. The top of the device is provided with a needle wheel, a needle groove plate is connected below the needle wheel, and a fixed needle groove plate is connected below the needle groove plate. A gear shaft and a gear shaft are arranged under the fixed needle groove plate. There is an index plate underneath.

In order to control the falling of the needle rollers, a needle block is also provided on the needle conveying wheel, and the needle groove plate is provided with a wave-shaped groove and a needle pushing plate. The utility model adopts mechanical automatic operation, has high efficiency, good quality and low labor intensity of workers. Suitable for bearing manufacturing operations.

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. The smallest diameter, especially suitable for bearing results with limited radial installation dimensions. According to different applications, bearings without inner ring or needle roller and cage components can be selected. At this time, the journal surface and shell hole surface matching the bearing are directly used as the inner and outer rolling surfaces of the bearing to ensure the 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. This kind of bearing can only bear radial load. In terms of its role, it should be support, but this is only part of its role. The essence of support is to be able to bear radial loads. It can also be understood as it is used to fix the shaft. It is to fix the shaft so that it can only achieve rotation, while controlling its axial and radial movement. For example, the consequence of a motor without a bearing 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. Theoretically speaking, it is impossible to achieve the role of transmission. Not only that, but the bearing will also affect the transmission. In order to reduce this effect, good lubrication must be achieved on the bearings of the high-speed shaft. Some bearings are already lubricated, which are called pre-lubricated bearings. Most bearings must have lubricating oil, otherwise the friction will not only increase energy consumption when running at high speed, but also the more frightening is that the bearings are easily damaged.