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Introduction of deep groove ball bearings


Deep groove ball bearings are a common type of rolling […]

Deep groove ball bearings are a common type of rolling bearings. The basic deep groove ball bearing is composed of an outer ring, an inner ring, a group of steel balls and a group of retaining frames. There are two types of deep groove ball bearings: single row and double row. The deep groove ball structure is also divided into two types: sealed and open. The open type refers to the bearing without a seal structure. The sealed deep groove ball is divided into dust seal and oil proof. seal.

Deep groove ball bearings are representative rolling bearings with wide applications. It is suitable for high-speed or even high-speed operation, and it is very durable and does not require frequent maintenance. This type of bearing has a small friction coefficient, a high limit speed, a simple structure, low manufacturing cost, and easy to achieve high manufacturing accuracy. The size range and form are varied. It is used in precision instruments, low-noise motors, automobiles, motorcycles and general machinery. It is a widely used type of bearing in the machinery industry. It mainly bears radial load and can also bear a certain amount of axial load. The axial load capacity increases when a larger radial clearance is selected, and the contact angle is zero when subjected to pure radial forces. When an axial force acts, the contact angle is greater than zero. Generally, stamping wave-shaped cages, solid cages made by vehicles, and sometimes nylon cages are also used. After the deep groove ball bearing is mounted on the shaft, the axial displacement of the shaft or the housing can be limited within the axial clearance range of the bearing, so the axial positioning can be performed in both directions. In addition, this type of bearing also has a certain degree of self-aligning ability. It can still work normally when it is inclined by 2 ′ to 10 ′ relative to the housing hole, but it has a certain impact on the bearing life.

Deep-groove ball bearing cages are mostly steel stamping wave-shaped cages, and large-scale bearings mostly use car-made metal solid cages. Deep groove ball bearings are commonly used rolling bearings. Its structure is simple and easy to use. Mainly used to bear radial load, but when the radial clearance of the bearing is increased, it has the performance of a certain angular contact ball bearing and can withstand combined radial and axial loads. It can also be used to withstand pure axial loads when the rotation speed is high and thrust ball bearings are not suitable. Compared with other types of bearings of the same size and size as deep groove ball bearings, these bearings have a low friction coefficient and a high limit speed. However, it is not resistant to impact and unsuitable to withstand heavy loads.

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