Analysis of different types of bearings and their applications
There is no inner or outer ring and no rolling element in the sliding bearing. They are usually made of wear-resistant materials. Usually used for low speed, light weight, lubrication and difficult to maintain mechanical rotating parts. The sliding contact surface of the joint bearing is spherical, which is mainly suitable for swing motion, tilt motion and rotation motion.
Rolling bearing is divided into radial bearing and thrust bearing according to its load direction or nominal contact angle. The radial contact bearing is a radial bearing with a nominal contact angle of 0, and the radial contact bearing is a radial bearing with a nominal contact angle greater than 0 to 45. Bearing is an important part of modern mechanical equipment. Its main function is to support the mechanical rotator, reduce its friction coefficient in the process of movement, and ensure its rotation accuracy. Generally, bearing models are composed of pre code, basic code and post code.
Generally, the bearing model is only indicated by the basic model. The basic model generally includes three parts: type code, dimension code and inner diameter code. The basic code is used to indicate the inner diameter, diameter series, width series and type of bearing. Post code is to use letters and numbers to indicate the structure, tolerance and special requirements of materials of bearings. The front code is used to represent the parts of the bearing and is indicated by letters.