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Deep groove ball bearing rings
Advantage:
1. Under normal conditions, the efficiency of rolling bearings is equivalent to that of hydrodynamic lubricated bearings, but higher than that of mixed lubricated bearings;
2. The radial clearance is relatively small, and the radial angular contact bearing can be preloaded and preloaded to eliminate the clearance, and the running accuracy is high;
3. For the shaft diameter of the same size, the width of the rolling bearing is smaller than that of the sliding bearing, which can make the axial structure of the machine compact;
4. Most rolling bearings can bear radial and axial loads at the same time, so the bearing combination structure is simple; 5. Less lubricant consumption, easy to seal and easy to maintain
6. No need for useful non-ferrous metals:
7. High degree of standardization, batch production, low cost; disadvantages
1. Poor ability to withstand impact loads;
2. Bearing life is low under high speed and heavy load;
3. High vibration and noise;
4. The radial dimension is larger than that of the sliding bearing;
Bearing material
The inner and outer rings and steel balls of the bearing are made of bearing steel (vacuum heat treatment). Most of the bearings use SUJ2 in JIS steel grades, which is the domestic chromium steel (GCr15). The chemical composition of SUJ2 has been standardized as a material for bearings in various countries around the world. for example:It is the same steel as AISL52100 (USA), DIN100Cr6 (West Germany), BS535A99 (UK), etc. The use of this material effectively improves the torque performance of the bearing, reduces noise and prolongs life. However, in humid or high temperature environments, martensitic stainless steel materials are required
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A plain bearing ring is a mechanical element used to connect two components. It is usually made of materials such as metal or plastic, which is elastic and wear-resistant, and can withstand certain pressure and friction. The main function of the joint bearing ring is to maintain the relative position and stability of the two components, and to absorb and reduce the vibration and impact between the two components.
Cylindrical Roller Bearing Rings
Cylindrical roller bearing rings are one of the indispensable parts of cylindrical roller bearings. Their main function is to provide support between the inner and outer rings of cylindrical roller bearings and ensure the normal operation of the rollers. This article will introduce the cylindrical roller bearing ring in detail from the following three aspects. 1. The structure and types of cylindrical roller bearing rings
Deep groove ball bearing rings
1. Under normal conditions, the efficiency of rolling bearings is equivalent to that of hydrodynamic lubricated bearings, but higher than that of mixed lubricated bearings; 2. The radial clearance is relatively small, and the radial angular contact bearing can be preloaded and preloaded to eliminate the clearance, and the running accuracy is high; 3. For the shaft diameter of the same size, the width of the rolling bearing is smaller than that of the sliding bearing, which can make the axial structure of the machine compact; 4. Most rolling bearings can bear radial and axial loads at the same time, so the bearing combination structure is simple; 5. Less lubricant consumption, easy to seal and easy to maintain 6. No need for useful non-ferrous metals:
1. Appearance quality The surface of the sample should have no bubbles, no burrs, no deformation, uniform material, and no irritating smell. 2. Size (1) Relevant dimensions tested with a vernier caliper shall comply with relevant technical and drawing requirements. (2) After the shaft sleeve is matched with the shaft, the rotor is vertically downward, and the shaft sleeve will not slide freely under the action of its own weight.
Cross roller is a type of bearing that uses cross arranged rollers to simultaneously withstand radial, thrust, and torque loads, with high accuracy, high stiffness, and long service life. The application range of cross roller bearings is very wide, such as industrial robots, automation equipment, precision instruments, and other fields.
