slewing bearingType: Slewing bearings include toothless, inner and outer four-point contact ball bearings, double row angular contact ball bearings, cross cylindrical roller bearings, cross tapered roller bearings and three row cylindrical roller combination bearings.

different specificationsslewing bearingThe characteristics：

1. Single row slewing bearing single rowslewing bearingA row of steel balls are used as rolling elements, and there is a single gasket between the steel balls. The inner and outer rings are integrated, and the steel ball is inserted through the blocking hole. The four-point contact between the steel ball and the raceway can bear axial force, radial force and overturning moment at the same time.

2. Double-row four-point contact ball slewing bearing double-row four-point contact ballslewing bearingstructure with single volleyballslewing bearingSimilar, except that it uses two rows of steel balls as rolling bodies, the two rows of steel balls are the same size, and a single spacer is arranged between the steel balls. The inner and outer rings are integrated, and the steel ball is inserted through the blocking hole.

Four-point contact ball bearings have a high static load capacity.

3. Three-row column slewing bearing Three-row column typeslewing bearingIt is a kind of slewing bearing with high bearing capacity, which is mainly used for heavy duty working occasions. It is composed of three rings, the upper and lower two rows of rollers are horizontally distributed, and bear the axial force and overturning moment from two directions. The radial force is taken up by a third row of vertically arranged rollers. It is the choice of large slewing bearings with a diameter greater than 1800mm.

4. Cross roller slewing ring cross roller slewing ring with single rowslewing bearingThe similarity is that there is only one row of rollers. The rollers are cylindrical rollers. The axes of adjacent rollers are arranged at 90 degrees. There are two raceways in each of the inner and outer rings. The cross section of the raceways is straight. Half of the rollers bear the downward axial force and half bear the upward axial force. Cross cylindrical roller bearings have a high dynamic load capacity.

5. Double-row reducing ball slewing bearing Double-row reducing ball slewing bearing consists of upper and lower double-row steel balls, inner and outer rings, spacers and lubricating sealing devices. However, the double-row slewing bearings of different diameters are three-piece slewing bearings, and their structure is quite complicated. For example, the cross tapered roller bearing can make the bearing have greater support rigidity and higher rotation accuracy through pre-interference.

Single row four-point contact slewing bearing, composed of two steel rings, steel ball and circular track four-point contact, can bear axial force, radial force and overturning moment at the same time. The bearing has the characteristics of compact structure, light weight, high precision and strong carrying capacity, and is widely used in excavators, pile drivers or cranes, military equipment and other fields. It mainly transmits loads and loads through the point contact between the inner and outer wheels and the rolling elements.

The above is aboutslewing bearingSome of the knowledge points, I hope you can seriously learn to understand the relevant knowledge, so as to choose the right products for their own needs, to ensure that production efficiency and economic benefits are improved.