Dual-roller bearing

Abstract

The invention provides a dual-roller bearing which comprises an inner ring, an outer ring, a rolling body, an inner retainer and an outer retainer. The dual-roller bearing comprises two retainer of the inner ring and the outer ring, wherein the outer ring is combined with the rolling body and the retainers to form a roller outer ring, and meanwhile the inner ring is combined with the rolling body and the retainers to form a roller inner ring. The rollers on the roller outer ring and the roller inner ring roll in a contact manner. So long as the rollers of the inner ring and the outer ring are matched with each other, the rollers can be regularly cylindrical or regularly conical or present the shape of a trapezoidal cylinder or other shapes. The dual-roller bearing has the following obvious effects: the common roller bearing is improved and the rollers of the bearing are combined with the inner / outer rings as well as the retainers so as to form the bearing only with the inner ring and the outer ring; the rollers only need to be matched with each other for rotation, and the friction force between the inner ring and the outer ring can be reduced to further increase the rotating speed.

Description

technical field [0001] The invention relates to a bearing, especially a double roller bearing. Background technique [0002] Bearings are fixed parts in machinery. When other parts move relative to each other on the shaft, the parts used to maintain the center position of the shaft and control the movement are called bearings. [0003] In terms of its function, it should be a support, that is, it is used to support the shaft literally, but this is only part of its function. The essence of support is to be able to bear radial loads. It can also be understood that 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. The consequence of a 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. Theoretically speaking, it is impossible to achieve the function of transmission. Not only that...

AI Technical Summary

Problems solved by technology

Theoretically speaking, it is impossible to achieve the function of transmission. Not only that, but the bearing will also affect the transmission. In order to reduce this influence, good lubrication must be achieved on the bearing of the high-speed shaft. Some bearings themselves have been lubricated, called pre-lubricated bearings, and Most of the bearings must have lubricating oil. When running at high speed, the friction will not only increase the energy consumption, but what is more terrible is that it is easy to damage the bearings.