Introduction to deep groove ball bearings

Structurally, each ring of a deep groove ball bearing has a continuous groove raceway whose cross section is about one third of the equatorial circumference of the ball. Deep groove ball bearings are mainly used to bear radial load, but also can bear a certain axial load. When the radial clearance of the bearing increases, it has the property of angular contact ball bearing and can withstand the axial load alternating in two directions. Compared with other types of bearings of the same size, this type of bearings has small friction coefficient, high limit speed and high precision, and is the type of bearings selected by users when selecting. Deep groove ball bearing has simple structure, easy to use, is a class of imported bearings with large production batch and wide application range.

Professional installation

Whether the installation of bearings is correct affects the accuracy, life and performance. Therefore, the design and assembly department should fully study the installation of bearings. It is expected to be installed in accordance with operating standards. The items of operating standards are usually as follows:

(1) Clean bearings and bearing related parts

(2) Check the size and finishing of the related parts

(3) Installation

(4) Check after the installation of bearings

(5) Supply lubricant

It is hoped that the bearing packaging will be opened before installation. General grease lubrication, no cleaning, directly fill grease. Lubricating oil lubrication, ordinary do not need to clean, but, instrument or high-speed bearings, to clean with clean oil, remove coated on the bearing rust prevention agent. The bearing with the rust inhibitor removed is easy to rust, so it can not be placed carelessly. Moreover, the bearings that have been sealed in grease can be used directly without cleaning.

The installation method of bearings varies according to the bearing structure, fit and condition. In general, because it is mostly shaft rotation, the inner ring needs interference fit. Cylindrical bore bearing, multi-purpose press into, or multi-purpose hot charging method. The taper hole is installed directly on the taper shaft, or installed with a sleeve.

When installed to the shell, the general clearance is more, the outer ring has interference, usually pressed into, or there is also a cold shrinkage fitting method after cooling installation. With dry ice as coolant, cold shrinkage with installation occasions, moisture in the air will condense on the surface of the bearing. Therefore, appropriate rust prevention measures are needed.

maintenance

In order to give full play to bearings and maintain their due performance for a long time, regular maintenance (regular inspection) must be done effectively.

Early detection of faults and prevention of accidents through proper regular inspection are very important for improving productivity and economy.

keep

Bearings are coated with appropriate amount of anti-rust oil and packed with anti-rust paper when leaving the factory. As long as the packaging is not damaged, the quality of bearings will be guaranteed.

But for long-term storage, it is appropriate to store it on a shelf 30cm above the ground under the condition of humidity below 65% and temperature about 20℃. In addition, the storage place should be away from direct sunlight or contact with cold walls.