Spiral clutch coupling

The spiral groove type elastic coupling has a continuous multi-turn long slot. This type of coupling has very good elasticity and small bearing load.It can withstand various deviations and is suitable for correcting deflection and axial deviation, but its ability to deal with eccentricity is relatively poor. Because the spiral groove is bent in two different directions at the same time, a large internal pressure will be generated, resulting in Premature damage to the coupling.Although the long spiral groove coupling can easily bend under various deviations, it has the same effect on the rigidity of the coupling under the torsional load.Excessive rotation under torsional load will affect the accuracy of the coupling and weaken its overall performance.

The spiral groove type elastic coupling is a more economical choice, suitable for low torque applications, especially in the connection of encoders and other lighter instruments.

Parallel-groove flexible couplings usually have 3 to 5 slots to cope with the problem of low torque rigidity.Parallel grooves take into account that the cut grooves can be shortened without reducing the ability to withstand deviations. The short cut grooves can increase the torque rigidity of the coupling and overlap, so that it can withstand considerable torque.This performance makes it suitable for light load applications.For example, the connection of a servo motor and a ball screw.However, this kind of performance will increase the bearing load as the slot size increases, but in most cases, it can adequately protect the bearing.Increasing size means increasing the ability to withstand eccentricity.

Nowadays, most of the flexible couplings are made of aluminum alloy, of course, there are also stainless steel flexible couplings.In addition to the stainless steel elastic coupling, it also increases the torque bearing capacity and rigidity, and can even reach twice that of similar products made of aluminum alloy.However, this increased torque and rigidity will be offset to some extent by the increased mass and inertia.Sometimes the negative impact will outweigh its advantages, so users have to look for other forms of couplings.

江苏Spiral clutch coupling　Shandong spiral clutch coupling