Deep groove ball bearings are the most common type of rolling bearings. Deep groove ball bearings (7 basic types of deep groove ball bearings are composed of an outer ring, an inner ring, a set of steel balls, and a set of cages. 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. Open means that the bearing does not have a sealed structure, and the sealed deep groove ball is divided into dust-proof seals and oil-proof seals.
The material of the dust-proof sealing cover is made of steel stamping, which only plays a simple role in preventing dust from entering the bearing raceway. The oil-proof type is a contact oil seal, which can effectively prevent the overflow of lubricating grease in the bearing. The type code of single-row deep groove ball bearing is 6, and the code of double-row deep groove ball bearing is 4. Its structure is simple and easy to use, and it is the most widely used in production. , the most common type of bearing.
Working principle Deep groove ball bearings mainly accept radial loads, and can also accept radial loads and axial loads at the same time. When it only accepts radial loads, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of an angular contact bearing and can accept a large axial load. The friction coefficient of the deep groove ball bearing is very small, and the limit speed is also 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 accept radial loads, but when the radial clearance of the bearing is increased, it has a certain performance of angular contact ball bearings and can accept combined radial and axial loads. It can also be used to accept pure axial load when the rotational speed is high and the thrust ball bearing is not suitable.
Compared with other types of bearings with the same specifications and dimensions as deep groove ball bearings, this type of bearing has a small friction coefficient and a high limit speed. However, it is not resistant to impact and is not suitable for accepting heavy loads. After the deep groove ball bearing is installed on the shaft, within the axial clearance range of the bearing, the axial displacement of the shaft or the shell in both directions can be limited, so it can be used as a shaft in both directions.
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