The slewing bearing expert reminds you that under normal circumstances, the slewing bearing and the slewing bearing itself have mounting holes, lubricating oil holes and sealing devices, which can meet the different needs of various types of mainframes working under various working conditions; the slewing bearing itself has Compact structure, convenient guiding and rotating, easy installation and easy maintenance, it is widely used in large and medium-sized rotary devices such as lifting and transporting machinery, metallurgical machinery, mining machinery, construction machinery, port machinery and automated assembly lines. The structural form can be divided into four different contact ball slewing bearings, double row ball slewing bearings, cross cylindrical roller slewing bearings and three rows of cylindrical roller combination slewing bearings and other different structural forms.
Slewing bearing, the symbol of the slewing bearing, the code number of the bearing code is composed of the basic code and the post code.
According to different structural characteristics, the slewing bearing can meet the requirements of the working host under various load conditions. Among them, the four-point contact ball slewing bearing has high dynamic load capacity, the cross cylindrical roller slewing bearing has high static load capacity, and the three-row cylindrical roller combined slewing bearing leads the bearing capacity to the height direction of the bearing. The various loads are respectively subjected to different raceways and roller sets, so that the bearing diameter can be greatly reduced under the same stress conditions, so that the main machine is more compact, and it is a high load capacity turntable. Bearing.
The basic code of the basic code is divided into three parts, the front part is the structure type and the transmission type code, the middle part is the rolling element diameter (the bearing of the two-row rolling element is the largest rolling element diameter), and the rear part is the rolling element center circle diameter. (For bearings with two or more rows of rolling elements, the diameter of the center of the largest rolling element).