FAG oilless bearing to choose the basic principles of application performance

FAG bearing configuration not only includes rolling bearing no oil, but also related to the bearing parts, such as shaft and bearing seat. Lubricant is also a very important part of bearing configuration, because lubricant to prevent wear corrosion resistance, so that no oil bearing can give full play to the role. In addition, the seal is also a very important component, the performance of the seal is very important to the cleanness of lubricant. Keep clean and has a far-reaching influence on the service life of bearing, which is why part has become a FAG bearing lubricant and seals business. 1. According to the bearing working conditions ( Including the type of load direction and load, speed, lubrication way and the orientation of coaxial degree requirements, or not, installation and maintenance, environment temperature, etc. ) , the choice of basic type oilless bearing, tolerance grade and clearance; 2. According to the working conditions of the bearing and force situation and life requirements, through the calculate and determine the bearing type, or according to the demands of the selected bearing model, calculating the life again; 3. Calculation of the selected bearing load rating and extreme speed. Choose FAG oilless bearing limit rotational speed is the main factor, require dacron life and load capacity, other factors help determine bearing type, structure, size and tolerance grade and clearance for the final solution. 1. Type choose all kinds of rolling bearing with different characteristics, suitable for different usage of various kinds of machinery. Choosing oilless bearing type, usually the following factors should be considered. : generally choose when to withstand a load thrust thrust bearings, angular contact bearings for high speed applications typically use ball bearings, under heavy radial load, using roller bearing. In a word, using personnel from different manufacturers, many of the bearing products, choose the appropriate type. • Bearing of machinery space and location in mechanical design, generally make sure of the size of the shaft, then choose rolling bearing according to the size of the shaft. Using ball bearing is usually small axis, the axis selects roller bearings. However, when the diameter of the bearing in the machine direction is restricted, choose needle roller bearing, special light and ultra light series of ball or roller bearings; When a FAG bearing no oil in the axial position of the machine is restricted, can choose a narrow, narrow range of ball or roller bearings. • Bearing the load size, direction and nature of the load is made oilless bearing the main factors. Roller bearing is used to carry heavy load, the ball bearing used in light or medium under load, carburizing steel bearing manufacturing or bainite hardening, can withstand the shock and vibration load. In the direction of the load, under pure radial load, can choose deep groove ball bearings, cylindrical roller bearing or needle roller bearing. Small pure axial load, can choose the thrust ball bearings; Under high pure axial load, can choose thrust roller bearings. When load bearing radial and axial, angular contact ball bearing is generally selected or tapered roller bearing. • Of bearing performance when the centerline of shaft and bearing seat centerline, Angle error, or because of the axis of two bearing span larger axial rigidity with smaller, easily bend or tilt, can choose good self-aligning properties of self-aligning ball or spherical roller bearings, as well as outside of the ball bearing. Such bearing on the shaft bent slightly tilted or circumstances, to maintain a normal work. Effort required depends on whether has the similar bearing selection experience. Meets the lack of experience, have special requirements, or any other need for bearing the cost of the configuration and then the shape of the given special consideration, you need to do more work, such as more precise calculation and/or testing. Chapters after comprehensive technology introduction, no oil bearing configuration design staff will see according to the order of the general requirements and provide the necessary basic information. It is obvious that not every one can think of can be FAG bearing applications need all the information is included. For this reason, we will be more references to the application of comprehensive engineering services, the service including the correct selection of bearing and how to complete bearing configuration calculation and other technical support. For bearing configuration of the higher technical requirements, in particular applications use the experience of the bearing is limited, the more should take advantage of this service.