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TECHNOLOGY IN ACTION


Mobile robots for quiet locations nowa reality thanks to NSK’s direct-driv ewheel uni t


The quiet nature of NSK’s wheel unit can be attributed to its gearless structure (direct-drive motor), which leverages the technology behind the company’s Megatorque Motor to eliminate the operating noise generated by typical gearboxes. Using the Megatorque Motor as a wheel was a new concept, and NSK had to invent ways of employing the e the t a


optimal specification a system’s parts to creat


reasonable cost.


the wheel unit is desig As well as low noise


imed at OEMs looking to add mobility to their autonomous or collaborative robots, NSK has developed an innovative direct-drive wheel unit. Specifically designed for use in quiet environments, suc with the new wheel unit can ef disturbing people.


A


ficiently carry and move loads up to 100 kg h as hospitals, hotels, offices and libraries,


robots fitted without


With digital trends such as AI (artificial intelligence) and ML (machine learning) beginning to show genuine promise in real world applications, efforts are ramping up to develop mobile robots and humanoid robot hardware that can perform useful tasks in close proximity to people. The major obstacle with systems like conventional AGVs (autonomous guided vehicles) used in factories and warehouses, is the noise they make. In contrast, the NSK direct-drive wheel unit is much quieter, facilitating use in public spaces and non-manufacturing environments. Settings such as service sector businesses and public facilities require robots that operate quietly to avoid impeding conversations and disturbing people from their tasks.


output, ned for


safe operation around people and is ideal for use in service robots, power-assist push carts and other collaborative robot (cobot) applications. A key feature of the design is its


‘back-driveability’, which makes


manual operations in t for easy reversion to p


he event of an issue. ush/pull


In use, a newly developed dedicated drive controls two wheel units simultaneously via simple signals. The drive is equipped with sensors measuring wheel rotation, acceleration, tilt and other useful parameters. Signals from the sensors can be output fo r use by an on-board P C in autonomous robot applications .


NS NSK Eu op Europe Ltd Ltd  www.nskeurope.com


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instrumentation knowledge and our ability to apply a diverse range of technologies has established ABLE as a leader in providing the right solution, whatever the requirement. In short, being able to make your measurement is more than what we do, it’s who we are.


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