A coupling is a mechanical element part that connects two shafts together to accurately transmit the power from the drive side to the driven side while absorbing the mounting error (misalignment), etc. of the two shafts.
Coupling in the machine industry is interpreted as “a part that connects two shafts together”, and is generally called “coupling”, “shaft coupling” or “joint”.
It can be very difficult to fully center two shafts when connecting them together. Shaft deflection caused in operation of the machinery, thermal expansion of the shafts, warping of support plates over long periods of use, and wear of shaft bearings can also make it difficult to keep the shafts centered. The role of the coupling is to resolve these types of problems through the selection of the right coupling for the job. Miki Pulley provides a wide range of coupling products not just for general purpose motors, but for everything from servo motors, which demand ultra-precise control, to engines, which generate high vibration and large shocks.
Servoflex Couplings
Features of Servo flex couplings:
- Ultra-high Torsional stiffness
- No inertia
- No backlash
- High response
- High torque
- High output
- High precision mounting
- Heat resistance
Rigorous analysis using finite element method, metal disc-spring method for ultra-high torsional stiffness.
These metal disc-spring couplings with ultra-high torsional stiffness were developed for servo motor applications. The disc-spring method provides excellent properties: firmness in the torsional direction but flexibility in the bending, step-difference, and axial directions. The disc spring that serves as the element has an unbeatable theoretically derived shape that is the result of rigorous analysis with the latest finite element method. These couplings are available in a full line-up for many different applications. Compact and lightweight SFC models use high-strength aluminum alloy for the hub material. SFS models, which use carbon steel for the body material, come in many different variations. And the SFM and SFF models were developed for main and feed shafts of machine tools.
Applications
- Machine tools
- Semiconductor production equipment
- Actuators
- Chip mounters
- Printing machines
- Packaging machinery
Starflex Couplings
Features of Starflex couplings:
- High flexibility
- Easy to mount and remove
- No backlash
- vibration and impact absorption
- R0HS-compliant
Double the previous transmission torque (compared to our previous product), a simple jaw coupling.
The simple construction of these couplings sandwiches a buffer piece called an element (made of polyurethane elastomer) between two hubs. Elements of two different hardnesses are available so you can select the appropriate one for your torque transmission responsiveness and amount of misalignment. The polyurethane elastomer used in the element enables double the torque transmission of our previous jaw coupling (Miki comparison), and since the design pre-compresses the element, it can also be used without backlash. Aluminum alloy is used as the hub material. The hub may be coupled to the shaft either by key or by clamp.
Applications
- Machine tools
- Hydraulic Machinery
- Pumps
- Fans
- Transport Equipments
- Textile Machinery