1. Working principle of bearings
Bearings are components used to reduce friction and transmit force in the movement of mechanical equipment. It is an interface between rotating parts and fixed parts, usually composed of inner rings, outer rings, rolling elements and cages. The working principle of bearings is to transmit rotational or linear motion through friction and rolling friction.
The shaft does not rotate around the bearing, but is supported and guided by the bearing. The direction of movement of the shaft in the bearing is opposite to the direction of movement inside the bearing. Therefore, there is an interaction between the shaft and the bearing, achieving smooth operation of the shaft and transmission of energy.
2. Types of bearings
Bearings can be divided into ball bearings, tapered roller bearings, cylindrical roller bearings and spherical roller bearings according to the type of rolling elements.
Ball bearings consist of an inner ring, an outer ring, a rolling ball, a retaining ring and a steel ball. They are suitable for light loads, low speeds and when rotation or oscillation is required.
Tapered roller bearings consist of an inner ring, an outer ring, a tapered roller and a cage. They are suitable for bearing radial and axial loads and for applications requiring high-speed operation.
Cylindrical roller bearings consist of an inner ring, an outer ring, cylindrical rollers and a cage. They are suitable for applications that bear large radial loads and require high-speed operation.
Spherical roller bearings are composed of inner rings, outer rings, rollers and cages. They are suitable for bearing large radial and axial loads and can adjust the eccentricity angle by themselves.
3. Factors affecting bearing life
The length of bearing life is affected by many factors, including usage environment, load, rotation speed, lubrication method, internal structure and accuracy, etc. Among them, lubrication method and load are the two most significant factors. Proper lubrication methods and loads can greatly extend bearing life and reduce the incidence of failures caused by wear and fatigue.
4. Conclusion
Bearings are important transmission components in mechanical equipment, with complex working principles and various types. The selection and use of bearings should be considered and judged based on the specific use environment, load, speed and other factors. Proper lubrication method, load and internal structure are also key factors to ensure long bearing life.
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Types and working principles of bearings
From: yxcbearing.com
Author: admin
Date: 2024-02-01
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