Classification and basic structure of rolling bearings

Bearing can be divided into two categories: one kind is roller bearing; Another kind is sliding shaft bearing. The application is broad, is to introduce the contents of the book. Although the types of rolling bearing is various, but has become a 'standard', a unified code form, when used according to the sample selection. And the classification of the rolling bearing) According to the size of the bearing size classification of bearing is according to the size to determine the nominal diameter, specific rules mindset - in table 1 1. Table 1 - 1 according to the size of the bearing classification number small small and medium-sized 'large' big '2628 - large nominal diameter size 55160 - 15120 - 1901200 - 430 = 40 scope/m ( 2) According to the direction of load bearing, the classification of the nominal contact Angle and shape of the rolling element 1. The definition of nominal contact Angle of the so-called 'nominal contact Angle' ( Use symbols a said) Refers to the rolling element and raceway contact region midpoint rolling element load vector and the Angle between the radial plane of rolling element bearing load hanging straight in the center of the contact area and contact surface, so the contact Angle is refers to the contact center and the center of the rolling element connection and the Angle between the bearing radial plane.