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010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane

China 010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane, Find details about China Roller Bearing, Ball Bearing from 010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane

Model NO.
010.20.200
Type
No Gear
Craft
Grinding
Precision
P5/P4/P2
Weight
65kg
Delivery Period
40 Days
Isolation Block
Plastic
Heat Treatment
Surface Hardening
Warranty
1 Year
Trademark
LYDZC
Transport Package
Wooden Box
Specification
120*280*60
Origin
Luoyang, China
HS Code
84821020
Model NO.
010.20.200
Type
No Gear
Craft
Grinding
Precision
P5/P4/P2
Weight
65kg
Delivery Period
40 Days
Isolation Block
Plastic
Heat Treatment
Surface Hardening
Warranty
1 Year
Trademark
LYDZC
Transport Package
Wooden Box
Specification
120*280*60
Origin
Luoyang, China
HS Code
84821020
 010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane
        Turntable bearing is the most basic and standard mechanical part in mechanical manufacturing technology, and it is also the most widely used coupling and rotating technology in mechanical industry. It has the advantages of simple structure, reliable quality, high precision, convenient assembly, easy disassembly and assembly of parts, good reusability and so on. Bearing parts are connected by bolts, that is, two connected bodies are closely attached and have enough axial pre-tightening force (i.e. axial tensile stress) by the torque exerted by "tightening", so as to ensure the reliable connection and normal operation of the connected parts. When assembling, the clamping force must be large enough to ensure that the connected parts do not move relative to each other during the working process. In addition, the applied clamping force must ensure that the bolts and connected parts will not be damaged or plastically deformed during assembly and service. At present, in the process of mechanical assembly production, torque can be used as an intermediate quantity to evaluate the assembly quality of bolt connection. For example, the torque control method obtains the axial pre-tightening force required by bolts by controlling the final torque of bearing mounting holes, and stops tightening immediately when the tightening torque reaches the set target torque, thus ending the torque control. In the process of mechanical assembly, the bolt connection of bearings has become a commonly used fastening and connection method in the installation of turntable bearings, and the tightening process is an important link. Through the optimization design, the monitoring strategy of tightening process is advanced.
010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane
Conclusion In this paper, the fracture observation, spectral analysis, metallographic examination and other tests have been done on the mechanical bearings that are broken in assembly, and the causes of bearing ring fracture have been explored. The main conclusions are as follows. (1) The chemical composition and metallographic structure of bearings meet the specification requirements. (2) Deep hot working folding defects exist on the outer surface of the bearing, which is the root cause of abnormal bolt fracture. (3) Bearing manufacturers should optimize the hot forming process reasonably to avoid similar folding defects, and strengthen quality inspection to prevent defective parts from leaving the factory.

010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane


                                     
010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane
                                   010.20.200   Live shooting

010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane
      112.25.630 cross roller bearings, quality assurance, welcome to consult and negotiate. Description of technical conditions of 112.25.630: Dimensions: 732x 528x 75 Material: 42CrMo, forging quenched and tempered HB240-280, raceway surface quenching hardness HRC55-61, hardened layer depth: not less than 3mm The installation hole is the key part of the slewing support, which has a great influence on the bearing installation. Our office adopts advanced processing technology to ensure that the location of the installation hole is within 0.5, so as to ensure smooth installation under any circumstances Roller size: 25x24.5, the number of which is 68 (isolation blocks may not be used, which can improve the requirements of load and overturning moment) The rated static load: Coa=2041KN.            
M=260KNM End runout: 0.04, radial runout: 0.1 Gear parameters. . . . . . For more technical requirements, please call us for consultation. The following is a special list of our product models and sizes for users to inquire and select Bearing model external ruler inch        
Toothless external teeth and internal teeth
010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane
Second, the characteristics of the turntable bearing:
1. Good low temperature performance;
2. Good oxygen and ozone resistance;
3. It has good machinability. (turning, milling, grinding and drilling are all possible);
4. Excellent vibration absorption performance, which can reduce vibration and buffer. In the bearing manufacturing industry, replace bearings and rotating tables;
5. Wear resistance. Its wear resistance is very outstanding, generally in the range of 0.01-0.10(cm3)/1.61km, which is about 3-5 times that of bearings. 6. Radiation resistance. The bearing has good resistance to high energy rays and still has satisfactory service performance under the radiation dose; 7. Wide hardness range. It still has the elongation and resilience of bearing steel under high hardness. The hardness range of bearings is Shaw A10-D80;. 8. Oil resistance. Bearing elastomer is a kind of strong polar polymer compound, which has little affinity with nonpolar mineral oil and is hardly eroded in fuel oil and machine oil 9. High strength. Under the bearing hardness, their breaking strength and bearing capacity are much higher than those of general bearing steel. Under high hardness, its impact strength and bending strength are much higher than those of bearing steel;
010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane
Buyer's notice:
1. Please ask the buyer to explain the specific requirements, check the size of the sample, etc., and the specifications will be subject to our company's measurement (after the buyer confirms it is correct, our company will pack it and produce it according to the sample specifications);
2. If there is no special sign, the products are all galvanized;
3. The product price does not include freight; About after-sales: 1, quality assurance, in line with quality standards; 2. All bearings are made of normal materials, and the quality is guaranteed; 3. Under normal use (no overweight, use according to instructions, etc.), the shelf life is one year;
4, bearings are taken in kind, because of photometric problems, bearing pictures have some chromatic aberration, please forgive me! Please ask the buyer to check the bearing size and inspect the goods (the delivery is subject to the sample specifications) Characteristics of turntable bearing: Generally speaking, the color of bearing products is metallic. Because bearings are high molecular materials, they have high hardness and can reach the strength of metal materials.

010.20.200 Ball Bearing Bulldozer Tire Excavator Bridge Crane Tower Crane    
 

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