Deep groove ball bearings are the most common type of rolling bearings. The basic deep groove ball bearing consists 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. The open type refers to the bearing without a sealed structure. The sealed deep groove ball is divided into dustproof and oilproof seal. The material of the dust-proof seal cover is stamped with steel plate, which simply prevents dust from entering the bearing raceway. The oil-proof type is a contact oil seal, which can effectively prevent the grease in the bearing from overflowing.
Deep groove ball bearings mainly bear radial load, but can also bear radial load and axial load at the same time. When it only bears radial load, 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 bear a large axial load. The friction coefficient of the deep groove ball bearing is very small and the limit speed is also high.
Deep groove ball bearings are the most representative rolling bearings with a wide range of uses. It is suitable for high-speed or even extremely high-speed operation, and it is very durable and does not require frequent maintenance. This type of bearing has low friction coefficient, high limit speed, simple structure, low manufacturing cost, and easy to achieve high manufacturing accuracy. Variety in size range and form, used in precision instruments, low-noise motors, automobiles, motorcycles and general machinery industries. It is the most widely used type of bearing in the machinery industry. Mainly bear radial load, but also can bear a certain amount of axial load.
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