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diaphragm stepped type single diaphragm screw clamp type-42
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Single diaphragm screw clamp type stepped coupling

The keyway matches the shaft and is fixed with screws. It has high rigidity, can efficiently transmit torque and compensate for displacement

1. Diaphragm : The stepped diaphragm is made of high-strength stainless steel and other materials. This design enables the diaphragm to better distribute stress when transmitting torque, and enhances the rigidity and load-bearing capacity of the coupling. The stepped shape of the diaphragm can provide a larger elastic deformation range, thereby effectively compensating for the radial, angular and axial deviations between the two shafts. 2. Half-coupling: Usually made of high-quality carbon steel or alloy steel, it has high strength and rigidity. One end of the half-coupling is designed with a keyway for connecting to the shaft and transmitting torque through the key, ensuring the reliability and stability of the connection. The other end is fixed to the diaphragm by screws, and the connection part is precisely processed to ensure the coaxiality and verticality between the diaphragm and the half-coupling.
3. Keyway: The size and accuracy of the keyway are designed according to different shaft diameters and torque requirements. Generally, standard keyway specifications are adopted, such as flat keyways, semicircular keyways, etc. The machining accuracy of the keyway directly affects the matching accuracy and torque transmission efficiency between the coupling and the shaft. Therefore, the dimensional tolerance and surface roughness of the keyway need to be strictly controlled during the machining process.
4. Screw fixation: Use high-strength screws to fix the diaphragm to the half coupling. The number and distribution of the screws are determined according to the specifications and torque of the coupling. The tightening torque of the screws needs to be controlled according to the specified value to ensure that the connection between the diaphragm and the half coupling is tight and reliable, to prevent loosening during operation, which will affect the performance and service life of the coupling.
Performance advantages : high rigidity , good compensation capability , high-precision transmission , reliability of keyway connection , easy installation and maintenance
Product Specifications
1. Torque range: The torque range of Couplings of different models and specifications ranges from a few hundred Nm to tens of thousands of Nm. The specific torque value depends on factors such as the size, material and structural design of the coupling. Generally speaking, the torque range of small high-rigidity diaphragm stepped keyway screw-fixed couplings is between 500-5000N·m, while the torque range of large industrial couplings can reach 10000-50000N·m or even higher.
2. Aperture size: The aperture size is designed according to different application scenarios and equipment shaft diameters. Common apertures range from a few millimeters to hundreds of millimeters. Generally, the coupling aperture used in small equipment may be between 10-50mm, while large mechanical equipment may require a coupling with an aperture of 50-200mm or larger to meet the connection requirements of various shaft diameters.
3. Allowable speed: The allowable speed is relatively high, usually between thousands of revolutions per minute and tens of thousands of revolutions per minute. The specific speed depends on the specifications, size, material and balance level of the coupling. Generally speaking, the allowable speed of small and precision couplings can reach 10,000-20,000r/min or more, while the allowable speed of large and heavy-duty couplings is relatively low, but it can also meet the operating requirements of most industrial equipment.



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