Harmonic Drive has launched a range of miniature hollow-shaft servo actuators, including what it believes is the world’s smallest - an integrated AC motor, gearbox and encoder that measures just 50mm in size, weighs 0.4Kg yet delivers 1.8Nm of torque.
In addition, the new range of FHA-C mini servo actuators features a choice of gear reduction ratios, including a 30:1 gear ratio, which is the first of its kind to be achieved with hollow shaft servo actuators.
Available in three gear sizes, 8, 11 and 14, the new FHA-C mini range has been developed specifically for use in applications such as pick and place mechanisms in the electronics and semiconductor industries, precision machine tools and automation equipment used in the manufacture or operation of medical devices and aerospace systems.
The integrated AC servo motors provide smooth torque curves with output speeds of between 60 and 200 rpm. A specially developed cross-roller output bearing provides resistance to axial and radial loads, and to high tilting moments, with a TTL-encoder being mounted directly onto the motor shaft to provide precise feedback data to within 1.6 arc seconds.
In addition, each of the mini servo actuators is designed to interface directly with all industry standard servo controllers. Alternatively, Harmonic Drive can supply a fully digital SC-610 servo controller which features Windows compatible software.
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