Plum couplingIt has good balance performance and is suitable for high-speed applications, but cannot handle large deviations, especially axial deviations.Larger eccentricity and deflection angle will produce a larger bearing load than other servo couplings.
It is often used to connect servo motors, stepping motors and ball screws. The curved surface is to reduce the deformation of the elastic plum spacer and limit the influence of centripetal force on it during high-speed operation.The zero-clearance claw coupling is composed of two metal sleeves (usually made of aluminum alloy, stainless steel can also be provided) and a plum blossom elastic spacer.The plum blossom elastic spacer has multiple leaf branches. Like a slider coupling, it also squeezes the plum blossom elastic spacer and the shaft sleeves on both sides to ensure its zero-clearance performance.Unlike the slider coupling, the plum blossom coupling is driven by squeezing, while the slider coupling is driven by shear.
When using the zero-clearance claw coupling, the user must pay attention not to exceed the maximum bearing capacity of the elastic element given by the manufacturer (under the premise of ensuring zero clearance), otherwise the plum elastic spacer will be squashed and deformed and lose its elasticity , The preload disappears, resulting in the loss of zero-gap performance, and users may only find out after serious problems occur.