One,Serpentine Spring CouplingApplications and Features
A device used to connect two shafts for transmitting motion and torque, which can only be engaged or disengaged after the machine has stopped operating.
Due to manufacturing and installation tolerances, deformation post-loading, and the effects of temperature variations,Serpentine Spring CouplingThe connected shafts cannot guarantee strict alignment, but there is a certain degree of relative displacement. This necessitates taking various structural measures in the design of the coupling to accommodate a certain range of relative displacement.
Two,Serpentine Spring CouplingTypes and Applications
1. FixedSerpentine Spring CouplingRigidSerpentine Spring Coupling)
The two shafts connected lack compensation capability for various relative displacements, thus demanding a high neutral requirement for the shafts. Relative displacement between the shafts will induce additional loads within the structure. The structure of this type of coupling is relatively simple.
A fixed coupling is a method of securing the shaft center with bolts, which is a traditional and cost-effective way, but the bolt end directly contacts the shaft. This may lead to shaft damage and difficulty in disassembly.
Common types of fixed couplings: sleeve couplings, flange couplings, clamp couplings, and tight clamp couplings.
Common fixed couplings: sleeve couplings and clamp couplings.
2. PromotionSerpentine Spring CouplingFlexible Coupling
Primarily used for work where there is misalignment or relative displacement between two shafts. According to the method of displacement compensation, they can be classified into rigid moving couplings and elastic moving couplings.
(1) Rigid motionSnake-shaped spring coupling
Rigid Flexible Coupling: Compensates for the dynamic connectivity between the working components of the coupling in one or several directions.
Common rigid coupling types include: Claw couplings(Axial displacement allowed), cross slot couplings (for connecting two shafts with minor parallel or angular displacement), universal joints (for applications where shafts have a large angular misalignment or significant angular displacement), gear couplings (allowing composite displacement), chain couplings (allowing radial displacement), etc.
(2) Flexible ActivitiesSerpentine Spring Coupling
Flexible Sprocket Couplings: Utilize the elastic deformation of elastic elements to compensate for the deflection and displacement of the two shafts, with the elastic elements also serving as shock absorption and damping.
Common flexible couplings include serpentine spring couplings, radial multi-layer leaf spring couplings, elastic ring pin couplings, nylon pin couplings, rubber sleeve couplings,梅花 couplings, diaphragm couplings, and more.
Section 3: Coupling Fixing Methods
CommonSerpentine Coupling SpringFixed methods are as follows:
Use locating screws for fixation: Two locating screws secure the fixing shaft, gap90, this is the traditional fixed method. Due to the contact between the screw tip and the axis, the axis may be damaged or difficult to disassemble.
Tightened with clamping screws: Using the tightening force of the hexagon bolts, the seam is reduced and the shaft is clamped. This method is easy to install and dismantle without causing damage to the shaft. It is a very common method of fixation. Keyway type: This type is a very traditional method of fixation, similar to the fixing style of positioning screws, suitable for high-torque transmission. To prevent axial slippage, it is usually combined with fixed positioning and clamping screws.


Key products include universal joints, diaphragm joints, ball joint couplings, slider couplings, star couplings, torque limiters, drum gear couplings,梅花 couplings, precision universal joints, tire couplings, safety couplings, roller chain couplings, helical spring couplings, elastic pin couplings, rigid couplings, flange couplings, and flexible couplings, among others. We offer several dozen series and over a thousand specifications of couplings, widely used in metallurgy, steel mills, mines, lifting and transportation, petrochemicals, papermaking, printing, textiles, locomotives, pipe welding equipment, longitudinal cutting, leveling, and straightening, and various other industries. For many years, we have enjoyed a good reputation among customers in 20 provinces, and some of our coupling products are also exported to Southeast Asia, Europe, and the United States.
































