There are several angular contact ball bearings: 7000 C(skin =15°), 7000 AC(skin =25°), and 7000 B(skin =40°).The bearing is locked on the outer ring and the inner and outer rings cannot be separated. The bearing can bear the combined radial and axial loads as well as the unidirectional axial loads.The bearing capacity of axial load is determined by the contact Angle.The larger the contact Angle, the higher the axial bearing capacity.The bearing may limit the axial displacement of the shaft or housing in one direction.

The contact ball bearing bears both radial load and axial load as well as pure axial load. Its axial bearing capacity is determined by the contact Angle and increases with the increase of the contact Angle.

Single row angular contact ball bearing

Single row angular contact ball bearings can only bear axial load in one direction.When the radial load is applied, additional axial force is generated and must be applied to the corresponding reverse load.As a result, the bearings are usually used in pairs.Double row angular contact ball bearings can bear large radial and axial combined load and torque load, can limit the axial or housing biaxial displacement, contact Angle of 30°.

Bearing code: 7

Double-mounted angular contact ball bearings

Double-mounted angular contact ball bearings can bear combined radial and axial loads, mainly radial load, but also can bear pure radial load.The series configuration can only bear axial load in one direction, while the other two configurations can only bear axial load in any direction.This type of bearing is generally presented to the user in pairs by the manufacturer, and the pre-pressure interference, rings and steel balls are installed in the axial pre-pressure state, thus improving the stiffness and rotation accuracy of the entire bearing as a single bearing.

Back to back structure, its back to back bearing code DB(such as 70,000 /DB), where the back to back of the load line and bearing shaft separated.It can bear axial load in two directions, but can only bear one bearing in each direction.Back-to-back mounted bearings provide a relatively high rigid bearing configuration and can withstand overturning torque.

In a face to face configuration, the rear code is used to encode the df(such as 70,000 / df), and the face to face paired bearing load line converges to the bearing shaft.It can bear axial load in two directions, but can only bear one bearing in each direction.This configuration is not as rigid as a back-to-back pairing and is not suitable for overturning torque.The stiffness and anti-overturning torque of this structure are not as good as that of DB structure. The bearing can withstand two-way axial load.

In series configuration, postcode DT(e.g. 70000/DT), in series configuration, the load lines are parallel, radial and axial loads are evenly Shared by the bearings.However, the bearing group can only bear axial load in one direction.If an axial load is applied in the opposite direction, or if there is a composite load, it is necessary to add a third bearing, which is adjusted relative to the series bearing pairs.This configuration can also support three or more series bearings on the same bearing, but can only withstand axial load in one direction.