Direct-drive motors come in smaller sizes
A
Danaher Motion product story
Edited by the Engineeringtalk editorial team
Dec 17, 2007
With virtually no limitation in terms of the motor to load inertia torque ratio there is no need for mechanical gearing systems between the motor and load.
Danaher Motion now offers its Cartridge DDR direct-drive motors in smaller sizes.
The new models, with flange sizes of 108, 137 and 188mm, combine the advantages of direct drive motors with the fast assembly of enclosed motors.
These advantages include small dimensions and constant high torque, high dynamics and accuracy, as well as low maintenance and wear.
This allows smaller machines to be built more quickly which provide higher work piece quality at higher output, while generating lower follow-up costs than conventional solutions.
The new small frame Cartridge DDR motors can be connected directly to the load and therefore do not require mechanical intermediate elements, such as gearboxes, clutches or belts.
Components which are not needed do not generate any costs during development, assembly, administration or maintenance.
In addition, they cannot wear or lead to machine breakdowns and repair costs.
Thanks to the elimination of intermediate parts and the use of high bandwidths, the new Danaher Motion motors allow up to 50 times greater accuracy than conventional drive-motor combinations while also enabling machine designers to save considerable time.
Further advantages include improved dynamics and higher speeds, which lead to faster processes.
There is virtually no limitation in terms of the motor to load inertia torque ratio allowing the elimination of mechanical gearing systems between motor and load.
The new Cartridge DDR motors also enable significant noise reduction, as they produce up to 20dB less noise than conventional solutions.
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