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Life and principle analysis of JM single diaphragm coupling

We all know that JM type single diaphragm coupling is used to connect the motor and equipment between an important transmission parts. It can be used to connect two shafts in different mechanisms (drive shaft and driven shaft) to rotate together to transfer torque. In high speed and heavy load power transmission, some couplings also play the role of cushioning, damping and improving the dynamic performance of shafting.

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In the process of selection of JM single diaphragm coupling, please note that the rated torque in the data should be greater than the system load torque. The rated torque has taken into account the variable load factor during operation, so there is no need to adjust the rated torque value when selecting. When sizing JM single diaphragm coupling, please note that the load torque generated by continuous operation is lower than the rated torque. The coupling transmission part does not have the ability to compensate the relative offset of the two connected axes, nor does it have the performance of cushioning and damping. But the structure is simple and the price is cheap. Only when the load is stable, the speed is stable, can be connected to the two axis of the relative offset of small case, can choose rigid coupling.

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In fact, JM type single diaphragm coupling is generally made up of engineering plastics or rubber. The life of the coupling transmission member is also the life of elasticity. Because the coupling drive is compressed and visibly strained. The average lifespan of elastomers is 10 years. Because elasticity has the function of buffering and damping vibration, it is used more in the case of strong vibration. The coupling elastomer performance of the specified temperature, determines the use of JM type single diaphragm coupling temperature, generally -35 to +80 degrees.


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E-mail: admin@rongxingcoupling.com

Add: North side of Planning 4th Road, Southern Industrial New Town, Jizhou District, Hengshui City, Hebei Province, China