The requirements of the key shaft of the coupling and the use of the diaphragm coupling

　　XNUMX. The cross-sectional size requirements for the flat key groove of the high-speed coupling,
　　8. For the coupling hub of the keyed coupling, there should be a puller screw hole at the end, as small as MXNUMX form and position tolerance:
　　1. The vertical flange joint surface of the coupling parts has a tolerance level of 6 for the end face of the rotation center and a tolerance level of 7 for the other end faces.
　　2. The radial runout tolerance level of the mating surface and the guiding surface of the coupling rotation center is level 6, and the radial runout tolerance level of other cylindrical surfaces is level 7.
　　3. The coaxiality tolerance level of the mating surface and the guiding surface of the rotation center is level 5 (end).
　　XNUMX. Use flat key type
　　Fourth, the buyer can specify the number of keyways and layout type
　　XNUMX. Type, size, tolerance, material and heat treatment of high-speed coupling flat key elastic sleeve pin coupling
　　Precautions for the use of diaphragm coupling:
　　1. Before installation, clean the end faces of the two shafts and check the fit of the key grooves on the end faces;
　　2. After the diaphragm coupling is installed, run a shift normally, check all the screws, if found to be loose, tighten them, repeat this for several shifts to ensure that they will not loosen;
　　3. In order to prevent the fretting of the diaphragm during high-speed operation, causing microcracks and damage to the bolt holes of the diaphragm, a solid lubricant such as molybdenum disulfide can be applied between the diaphragms or the surface of the diaphragm can be coated with anti-friction Layer processing; high-speed diaphragm coupling
　　4. Long-term overload use and operation accidents should be avoided;
　　5. During work and operation, check whether the diaphragm coupling is abnormal. If any abnormality occurs, perform maintenance;
　　6. Appropriate protective measures shall be taken at various sites where personal and equipment accidents may be caused by the operating diaphragm coupling.