universal joint coupling
Technical Advantages of Diaphragm Couplings Sep 04, 2021
1.No lubrication required
It relies on metal diaphragms to transmit torque and absorb deformation caused by misalignment. There is no relative movement, no friction and wear between different parts, so no need lubrication. Super suitable to the development direction of non oil process equipment.
The gear coupling is a rigid movable coupling. It relies on the relative sliding between the surfaces to compensate the misalignment of the two shafts.Therefore, its need be lubricate. Especially under high speed and centrifugal force,such as the oil separation, leakage, and selection of lubricants becomes very important .they usually choose bearing lubricants rather than gear lubricants ,the later is more better load carrying capacity.
Therefore, the lubrication problem of gear couplings running at high speed is particularly prominent.On the other hand, the wear caused by the relative sliding of the gear surface will cause a series of problems such as sludge and imbalance.Therefore, although gear couplings were once the first choice for high-speed and high-power applications, with the development of diaphragm couplings,the former have gradually been replaced.

2. All-metal structure, large torque transmission capacity and long service life

The diaphragm coupling uses a metal diaphragm as an elastic element, which has high strength and large load transmission capacity, and there are no non-metal parts in the entire product, no aging problem,long service life, and suitable for harsh environment .
Non-metallic elastic element couplings can not compare with it .

3.large compensate misalignment ability, easy installation .

Use a high-strength austenitic stainless steel diaphragm, which can bearing large deformations while transmitting torque, thereby compensating for misalignment of the two shafts.Non-metallic elastic couplings not only have a short life but also have a small compensation capacity. The gear coupling is restricted by the relative sliding speed  and the lubrication conditions,so angular compensation ability is v

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