cheap Open 4x9x2.5mm deep groove ball bearing for agriculture 684

Deep groove ball bearings are usually made up of a pair of rings, a group of retainers and a set of steel balls. It is simple in structure and convenient in use. It is the most widely used and widely used type of bearing. This type of bearing is mainly used to bear radial load, but it can also bear a certain amount of axial load in any direction. When the radial oil gap is increased in a certain range, the bearing has the property of angular contact ball bearing and can also bear large axial load. After the deep groove ball bearing is mounted on the shaft, the axial displacement of the shaft or shell is limited to the axial range of the bearing. At the same time, when the shell hole and the shaft (or the outer ring of the inner ring) relative tilt, (no more than 8 '-16', according to the determined clearance) can still work normally. Since the inclination exists, it is necessary to reduce the life of the bearing..

Specifications

Working principle
Deep groove ball bearing is mainly subjected to radial load, it can also bear radial load and axial load at the same time. When it only bears the radial load, the contact angle is zero. When the deep groove ball bearing has larger radial clearance, it has the performance of angular contact bearing, which can bear large axial load. The friction coefficient of deep groove ball bearing is very small, and the limit speed is also very high

Bearing characteristics
Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. It is mainly used to bear radial load, but when increasing the bearing radial clearance, it has a certain performance of angular contact ball bearing, and it can bear the combined load of radial and axial. When the thrust ball bearing is not suitable for high speed, it can also be used to bear the pure axial load. Compared with other types of bearings with the same size and size of deep groove ball bearings, the friction coefficient of this kind of bearing is small and the limit speed is high. But it is not resistant to impact and is not suitable for heavy load.
When the deep groove ball bearing is mounted on the shaft, the axial displacement of the shaft or shell can be restricted in two directions in the axial clearance range of the bearing, so it can be positioned in two directions in an axial direction. Besides, the bearing has certain alignment ability. It can still work normally when compared with the hole of the shell 2 'to 10', but it has certain influence on the bearing life.

Main uses
Railway vehicles, axle, printing machinery, agriculture, chemical industry, machinery and equipment, household appliances, extruders, forming machines, industrial supplies, printing equipment, generators, internal combustion engines, gas turbines, machine tool spindles and construction