Chains
(15)
Oil Seals
(3)
Sprockets
(9)
Springs
(7)
Stamped Parts
(7)
Bolts, U-bolt
(2)
Ball bearings is a kind of rolling bearings, including ball ball steel ring and the outer steel ring mounted in the middle, able to withstand greater loads. Also known as ball bearings. Ball bearings are mainly constituted by four basic components: the ball (ball), the inner ring (inner ring), the outer ring (outer ring) and retainer (cage or retainer). Ball bearings for general industrial use to meet the standard AISI 52100, ball and ring usually made ??of high chromium steel, Rockwell hardness (Rockwell C-scale hardness) between about 61-65. The retainer ring hardness compared with the low ball, the material of metal (such as: carbon steel, aluminum) or nonmetallic (such as: Teflon, PTEF, polymer materials). Ball bearings than journal bearings (journal bearing) of the rotating friction is small, so the same speed, the friction is relatively low temperatures.
A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the moving parts of the bearing.
The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. Usually one of the races is held fixed. As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were rotating on each other.
Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.
Compared to other rolling-element bearings, the ball bearing is the least expensive, primarily because of the low cost of producing the balls used in the bearing.
