MIKI PULLEY Couplings
SERVOFLEX Couplings
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.
STARFLEX Couplings
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.
SFR Couplings
Newly developed rubber element achieves high damping performance. A coupling with high damping performance thatcan be used for high-speed, high-precision operation of servo motors, etc. No backlash due to frictional power transmission. By adopting HNBR for the element, vibration is quickly damped compared with flexible couplings that use metal elements. This suppresses the resonance phenomenon a concern in the drive system and provides stable high-speed control that can avoid resonance in a wide range of operating speeds.