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# Rolling bearing illustration - bearing knowledge

by：Waxing     2020-06-03
An overview of the shaft bearing called bearing, bearing according to the different grinding quality at work, can be divided into two categories, the rolling bearing and sliding bearing. Rolling bearing type, structure, size and drawing have been standardized, therefore, it is a standard parts. The structure of the rolling bearings of rolling bearing sort is more, but its structure is roughly same, as shown in the figure below deep groove ball bearings, cylindrical roller bearings, thrust ball bearing structure. The figure is visible, they are all made by outer ring, inner ring, rolling element and cage of four parts. Among them, the shape of the rolling element common has the ball, cylinder and cone, etc. Usually, the rolling bearing outer ring is installed in the base hole of the fixed, the inner ring is installed on the shaft and the shaft rotation together, while rolling body, the outer ring raceway between rolling, rolling friction. The classification of rolling bearings rolling bearing according to the stress distribution can be divided into three categories: ( 1) The centripetal ball bearings, mainly bear radial load. ( 2) Thrust bearing, mainly bear axial load. ( 3) Angular contact bearings, can bear radial and axial load at the same time. Code rolling bearings of rolling bearings generally is a group of digits represent the bearing structure, type, and inner diameter size, code provisions in seven digits, commonly used is four digits, the last two figures show that the inner diameter of the bearing number; Said the third digit bearing diameter series, that is, in the inner phase at the same time, there are a variety of different diameter, can consult the relevant standards; The fourth number said bearing type, such as: '0' said centripetal ball bearings, '8' said flat thrust ball bearings. Right up 1, 2 digits ( Inner code) 00 02, 03 04 ~ 99 01 diameter values ( mm) 10 to 12 15 to 17 code value multiplied by five is the inner diameter of the rolling bearing rules common forms of rolling bearing, the symbol and mark
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