DC motor linear actuators – soaring forces on a tiny scale.

Advancements in brushless dc motor technology are transforming linear actuation.

Shown here is an example of an 8mm diameter brushless DC motor fitted with an 8mm diameter planetary gearhead. The gearhead output flange contains not only the standard set of preloaded radial ball bearings, but also an additional set of bearings mounted between the radial bearings configured as an axial thrust block. By mounting the gearbox thrust bearings between the radial set, it provides additional separation and increased radial capability.  The importance of this bearing system is intrinsically related to the shaft. Close scrutiny of the shaft on this tiny gearmotor reveals its true function – linear movement. The ceramic thread is manufactured with tight tolerances on runout and pitch and with extremely smooth surfaces.

On this example a thread of only 3mm diameter provides up to 27N. This, combined with the precise position control capabilities of DC servo motors, is what enables this device in a world of miniaturisation and automation. All combinations of motor gearhead and actuator are meticulously customised to suit the application and avoid any unnecessary size or weight compromises.


Contact maxon motor Australia for engineering and design assistance on +61 2 9476 4777.



About maxon motor Australia

maxon motor is the world’s leading supplier of high-precision drive systems. More than 40 years’ experience, constant innovation, top-quality products and competent customer service make maxon motor a reliable partner in the drive technology sector. We are driven by your specific requirements. The product range incorporated in the modular system is comprehensive: Brushed and Brushless DC motors with the unique ironless maxon winding Flat motors with iron cores Planetary gears, spur gears and special gears Sensors (encoders, DC tachos, resolvers) Servo amplifiers, position controllers and control electronics High-tech CIM and MIM components Customer specific drive solutions. maxon motor is a Swiss company headquartered in Sachseln (Central Switzerland) that employs more than 2000 staff worldwide. With 14 sales companies based in over 30 countries, sales partners in another 10 countries and with six production sites, maxon motor are able to provide locally-based and competent customer service. maxon motor helps provide innovative solutions at competitive prices for numerous applications in various markets, such as Medical technology, Industrial automation and robotics, Aerospace industry, Automotive industry, Communication, Consumer applications, Inspection and Instrumentation and Safety engineering. maxon motor Australia is based in Mt Kuring-Gai NSW and our staff will be happy to help you with all your DC motor and technical enquiries. www.maxonmotor.com.au

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