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We cover the top 5 advantages of direct drive motors, where the system or motor is connected directly to the load, versus a conventional rotary system.

Frameless, or “servo motor kits”, open up numerous possibilities in designing motion elements for your machine related to performance.  A frameless motor consists of rotor and stator components which are built into a machine assembly to transmit torque to a load.  Many applications which take advantage of a frameless motor are direct driven, which eliminates bandwidth robbing compliance.  Effectively, this means you have eliminated torsional losses and any wind-up or spring losses. 

Trending in the automation world these days is the merging of the collaborative robot and the AGV, creating a mobile Cobot with the navigational capabilities of today’s AGV’s. This opens new opportunities in warehouse logistics that improves the entire supply chain. With additional power demands created by this combination, innovative motor and drive solutions become paramount.

Collaborative robots are designed to work safely with and next to their human counterparts.  A subset of collaborative robotics has innovative safety techniques that completely eliminate the need for a safety barrier between the human and the robot.  This enables a wide range of applications to deploy and benefit from this collaborative robot technology.
The utilization of robotics in manufacturing is currently a $5B industry and is projected to grow to a $20B industry (Source: A Roadmap for U.S. Robotics, From Internet To Robotics - 2013 Edition). A major contributor to the projected growth will come from small to mid-size users in a variety of industries where historically the demand was from the very large corporations in the automotive and aerospace sectors. Counter to traditional industrial robots that are big, noisy, and costly, companies are developing innovative lightweight robots designed for small to mid-sized users.

The tragic earthquake and subsequent Tsunami that devastated the Fukushima Prefecture in Japan just over 2 years ago points to a great potential use of evolving robotics technology.  The Defense Advanced Research Projects Agency (DARPA) has created a competition among industry called the Robotics Challenge.  The challenge is to develop robotics technology that can eventually replace the need for humans to don those highly fashionable and comfortable HAZMAT suits as they go into very dangerous environments to keep a bad situation from growing worse.

There really isn't anything to fear when utilizing high performance frameless servo motors in your machine design. Many engineers get concerned about "air gaps" and "concentricity" when discussing frameless servo motors - but there is little to be afraid of! In applications where an embedded motor design makes sense, the application shaft that the frameless motor will be mounted on will already be machined to tolerances well within the range required for robust servo driven performance. Concentricity, run out, and axial play all must be considered in the machine mechanism itself and will typically be well in range for the KBM motor family. With the use of high energy magnet materials, the need for an ultra-tight air gap is out the window!

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