MIKI PULLEY (THAI) CO., LTD.

Step-Flex (Resonance Suppression Rubber Coupling) STF (Thailand Miki Pulley)

Stepflex Coupling STF is a rubber coupling with high damping performance, ideal for servo motors and stepping motors. By adopting a newly developed laminated rubber element (HNBR), it achieves high damping and low reaction force. Compared to flexible couplings that use metal in their elastic part, it quickly absorbs vibrations and suppresses resonance phenomena. Therefore, it exhibits excellent performance in a wide range of applications, including encoders, semiconductor manufacturing equipment, and actuators.
■ Features
High Damping Performance: Quickly absorbs vibrations and suppresses resonance phenomena thanks to the newly developed laminated rubber element (HNBR).
Low Reaction Force: Reduces load on machinery through its low reaction force design.
Backlash-Free: Enables high-precision positioning.
High Flexibility: Absorbs a wide range of angular and axial misalignments.
Easy Installation: Can be easily installed with clamp bolts.
■ Specifications
Model: STF
Torque Range: 0.5 to 60 N・m
Operating Temperature Range: -20℃ to +80℃
Element Used: Laminated rubber element (HNBR)
Mounting Method: Clamp bolt
Max. Rotational Speed: 10,000 min⁻¹
Misalignment Absorption Range: Parallel Misalignment: ±0.2 mm, Angular Misalignment: ±1.5°, Axial Misalignment: ±0.3 mm
■ Applications
Encoders: Devices requiring high-precision positioning
Semiconductor Manufacturing Equipment: Manufacturing processes requiring high precision and stability
Actuators: Equipment requiring precision and stability of operation
Servo Motors: Motors requiring high-precision control
Stepping Motors: Motors requiring vibration suppression and precise operation
Stepflex Coupling STF is an excellent solution as a high-performance rubber coupling for servo and stepping motors, suppressing resonance and achieving vibration absorption and low reaction force.

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