Introduction
Deep Groove Ball Bearings (GB/T 276-1994) is one of the most typical rolling bearings. The primary type of deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls, and cages. Deep groove ball bearing type has a single row and double row two, single row deep groove ball bearing type code for 6, double row deep groove ball bearing code for 4.
Principle
Deep groove ball bearing is mainly used to take pure radial load can also handle the radial load and axial load simultaneously. The contact angle is zero when it only carries the pure radial load. When the deep groove ball bearing has an ample radial clearance has the performance of angular contact bearing, it can withstand a large axial load. The deep groove ball-bearing friction coefficient is minimal. The limit speed is also very high, especially in the axial load is very large under high-speed operating conditions. Deep groove ball bearing than thrust ball bearings have superiority.
Structure
Deep groove ball bearing structure is simple, compared with other types of easy to achieve high manufacturing accuracy, so it is accessible to series mass production, manufacturing costs are also lower, the use of extremely common. In addition to the primary type of deep groove ball bearings, there are various variations of structure, such as deep groove ball bearings with dust cover; deep groove ball bearings with rubber seal; deep groove ball bearings with stop groove; deep groove ball bearings with ball loading gap of large load capacity; double row deep groove ball bearings.
Advantages
Select a larger radial clearance when the axial load carrying capacity increases, bearing pure radial force when zero contact angle. When there is axial force, the contact angle is more significant than zero. Generally use the pressed wave-shaped keep frame, turning solid keep frame, sometimes also use nylon frame.
Deep groove ball bearing installed in the shaft, in the bearing axial clearance range, can limit the post or shell to two directions of axial displacement so that it can be in both directions for axial positioning. In addition, the bearings also have a specific adjusting ability; when tilted 2′ ~ 10′ relative to the shell hole, they can still work usually, but the bearing life has a particular impact. Deep groove ball bearing cage is mostly steel plate stamping wave-shaped cage, significant bearing more than the use of the solid metal cage.
Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. Mainly used to bear radial load, but when increasing the bearing radial clearance, has a specific angular contact ball bearing performance can withstand the diameter.
It is mainly used to bear radial load. Still, when increasing the bearing radial clearance, it has a specific angular contact ball bearing performance that can take the diameter, axial combined load. High speed and not using thrust ball bearing can also handle the pure axial load. With deep groove ball bearing specifications of the same size as other approaches, such bearings friction coefficient is small; the speed limit is high. However, they are not shock-resistant and are not suitable for heavy loads.
Deep groove ball bearing installed in the shaft, in the bearing axial clearance range, can limit the post or shell to two directions of axial displacement so that it can be in both directions for axial positioning. In addition, the bearings also have a specific adjusting ability, when tilted 2′ ~ 10′ relative to the shell hole, still can work usually, but the bearing life has a particular impact. Deep groove ball bearing cage for the steel plate stamping wave-shaped cage, large bearings more metal solid cell using the car.
Application
Deep groove ball bearings can be used in gearboxes, instruments, motors, household appliances, internal combustion engines, vehicles, agricultural machinery, construction machinery, engineering machinery, yoyo ball, etc.
Types of deep groove ball bearings
With sealing ring
With dust cover: single-sided or double-sided iron dust cover. With non-contact rubber seal: single-sided or double-sided non-contact seal. Contact rubber seal: single-sided or double-sided contact seal and inner ring contact.
With an outer ring with stop groove: N: outer ring with stop groove; NR: outer ring with stop groove and stop ring.