BEI Kimco developed a new Linear Voice Coil Actuator (VCA) that provides extremely low hysteresis/low friction with precise and consistent bi-directional position control. Initially designed to meet the exacting requirements of an anesthesia machine, the new LAH15-19-000A VCA will serve well for many other applications where low-friction and high-force accuracy are needed.
Key to the VCA’s new low-friction design is a patent-pending symmetrical flex circuit that prevents friction caused by movement to ensure consistent, reliable results. A solid brass ball cage with captured steel balls further reduces friction. BEI Kimco’s low-friction design can also be incorporated into the company’s standard and custom VCAs.
Key Features
- Design features combine to deliver an operating performance with a hysteresis of just 10 mN compared to similar style actuators that deliver as much as 50 to 200 mN
- Peak force of 4.7 N
- A total stroke of 7.4 mm
- Compact size of just 38 mm in diameter by 48.3 mm in length
Filed Under: Materials • advanced, Motion control • motor controls