The choice of rolling bearing

The choice of rolling bearing, the choice of the right methods and steps can use rolling bearing, the host can get a good job performance, prolong service life. Enterprises can shorten the maintenance time, reduce maintenance costs, improve the operating speed of the machine, there is a very important role. Therefore, design and manufacture of units and maintenance use units, whether choosing a rolling bearing must be highly visual,
1, according to the bearing working conditions (including the direction of the load and the type of load, speed, lubrication way and orientation of the coaxial degree requirements, not letter, installation and maintenance, environmental temperature, etc.), choose the basic types, tolerance grade, and bearing clearance;
2, according to the working conditions of the bearing and force situation and life needs, through the calculate and determine the bearing type, or select bearing model according to the requirement, the calculation of life;
3, select the bearing load rating and the calculation of limit speed. Choose to bearing the main factors that limit speed and polyester life and load capacity and other factors help determine bearing type, structure, size and tolerance grade and the final solution.
NSK bearings imported structure and symbolic representation
Imported bearing is a kind of rotary table can at the same time high axial load, radial load and tilting moment of the special structure of overall carrying medium.
In general, wheel bearing itself with the mounting holes, oil holes and sealing device, can satisfy all kinds of work under the different conditions of the different needs of various host, wheel bearing itself, on the other hand, the structure is compact, easy to guide the rotation, convenient installation and maintenance is convenient wait for a characteristic, is widely used in lifting transportation machinery, metallurgical machinery, mining machinery, construction machinery, port machinery, automated production lines and other large rotating equipment.
PRS wheel bearing according to the different structure form can be divided into four-point contact ball bearing, double refused to diameter of ball bearing, crossed cylindrical roller bearing turntable and three rows of cylindrical roller bearing wheel different structure forms, such as the above all kinds of bearings according to whether or not to bring a tooth, tooth distribution area is divided into no teeth, tooth and the different structure Type Of SKF Bearing .
Wheel bearing according to the different characteristics of structure can meet the needs of the work in a host of various kinds of load conditions. The four-point contact ball bearing high bearing capacity, crossed cylindrical roller bearing static load capacity is high, the three rows of cylindrical roller bearing turntable due to increase the bearing capacity of lead bearing height direction, all kinds of load by different runway and roller group respectively, under the same conditions of stress, it can significantly reduce the diameter of the bearing, so the characteristics of the host more compact, wheel bearing is a kind of high bearing capacity.
Wheel bearing code said
A, consisting of the code
Bearing the code by the basic code and zip code.
Second, the basic code of NSK bearings
Basic code is divided into three parts, the structure type and transmission type, in front of the central diameter for rolling (more than two lines of rolling bearings roll diameter), the back part of the central circle diameter of roller (more than two lines of the center of the largest diameter roller rolling bearing)