I want the standard is best GB, and if other mechanical standards are also ok. 2, mainly to bearing diameter tolerance (preferably all grades have).
Go online to search. You should be able to find what you need
Tolerance standards refer to GB/T307.1-2005, divided into 0, 6, 5, 4, 2, five precision levels
Deep groove ball bearings are the most commonly used rolling bearings. The utility model has the advantages of simple structure and convenient use. The utility model is mainly used to bear radial load, but when the radial clearance of the bearing is increased, the ball bearing has the performance of a certain angular contact ball bearing, and can bear the combined load of radial and axial. When the speed is higher and the thrust ball bearing is not suitable, it can also be used to bear the pure axial load. Compared with other bearings of the same size, the friction coefficient of this kind of bearing is small and the limit speed is high. But it is not shock resistant and is not suitable for heavy load. The deep groove ball bearings are mounted on the shaft, and in the axial clearance of the bearing, the axial displacement of the axle or the two directions of the outer shell can be limited, so that the utility model can be positioned in an axial direction in both directions. In addition, this kind of bearing also has a certain ability to adjust the heart, when relative to the shell hole tilted 2 'to 10', still can work normally, but it has some influence on the bearing life. The deep groove ball bearing holder is mostly steel plate stamping wave cage, and the large bearing adopts the metal solid cage. Size tolerances and rotation precision tolerances of deep groove ball bearings are widely used in automobiles, tractors, machine tools, motors, pumps, agricultural machinery, textile machinery and other deep groove ball bearing according to GB GB/T307.1-94 divided into P0, P6, P5, P4, P2 five precision grade. They are equivalent to the international standard ISO492, German standard DIN620, Japanese industrial standard JISB1514, and the corresponding accuracy grade of the United States national standard ANSI/AFBMA STD20.
