The Ball Bearing Is Stable, The Power Loss Is Small, And The Efficiency Is High

The ball bearing is a kind of rolling bearing. The ball is installed in the middle of the inner steel ring and the outer steel ring, which can bear a large load. Also called ball bearings.
Ball bearings are mainly composed of four basic components: balls, inner rings, outer rings and cages, also known as cages or retainers. General industrial ball bearings meet the AISI 52100 standard. The balls and rings are usually made of high-chromium steel, and the Rockwell C-scale hardness is about 61-65. The hardness of the cage is lower than that of the ball and the ring, and its material is metal (such as: medium carbon steel, aluminum alloy) or non-metal (such as: Teflon, PTEF, polymer material). Ball bearings have less rotational friction resistance than journal bearings, so at the same speed, the temperature generated by friction will be lower.
In the design of mechanical parts, rolling bearings and sliding bearings are often used. Compared with sliding bearings, rolling bearings have the following advantages and disadvantages.
(1) In general working conditions, the friction coefficient of the rolling bearing is small and will not change with the change of the friction coefficient, and is relatively stable; the starting and running torque is small, the power loss is small, and the efficiency is high.
(2) The radial clearance of the rolling bearing is small, and can be eliminated by axial preloading, so the running accuracy is high.
(3) The axial width of the rolling bearing is small, and some bearings bear the combined radial and axial loads at the same time, with compact structure and simple combination.
(4) Rolling bearings are standardized components with a high degree of standardization and can be produced in batches, so the cost is low.