Page 11 - Industrial Technology EXTRA 25th January 2021

A European motor supplier providing
motorised window shades was looking to reduce
the weight and size of its assemblies. Its
customer, a leading manufacturer of business
jets, was launching a new aircraft with weight
reduction as a main design aim. The brakes
mounted to the window shade motor were
identified as an area for optimisation. However,
it was clear that a standard braking solution
wouldn’t provide the required weight and space
savings. Consequently, the motor supplier
approached Warner Electric to provide a
specialised solution.
Warner Electric is an established
manufacturer of lightweight, compact braking
solutions for aircraft interiors. Its range of XS
brakes are designed to provide reliable braking compact package. Weighing in at less than 27g, the
performance with minimal weight and space brake delivered the savings both motor supplier and
penalties. The range of six standard sizes is business jet manufacturer desired. The holding
incredibly versatile, with Warner Electric able to torque (0.015 Nm static rated as standard) was
customise and develop existing brake models to matched with an operating noise level below 55
provide specialised solutions to fit aircraft seats or dBA – important for maintaining a comfortable
other motorised systems. cabin environment.
All units feature a customised adaptor flange to
Close collaboration allow the brake to be fitted to customer-specific
Initially an audit was carried out at the Warner mountings. This ensures easy assembly, allowing for
Electric production plant to ensure that aerospace seamless integration with the existing motor
single supplier delivery expectations could be met. powering the motorised window shade. To illustrate
Once satisfied, the customer tasked Warner Electric the performance of the newly developed brake,
with developing a new brake variant to suit the Warner Electric also provided the motor supplier
specifics of the application. Warner Electric with extensive electrical and environmental test
engineers provided samples, prototypes and pre- data.
production examples to aeronautic standards – An expert in electromagnetic braking solutions
developed in close collaboration with the customer and a leading brand of Altra Industrial Motion Corp.,
engineering team. This allowed for detailed Warner Electric is able to tailor its range of XS
assessment and an optimal brake selection. brakes to suit the individual needs of specific
The end result was the XSB22S electrically- aircraft designs. A global engineering capability
released, spring-set holding brake, designed to ensures that the aviation sector has access to wide
maintain the position of the window shade. ranging support, from product design and testing to
Mounted on the back of the motor, the XSB22S maintenance and technical guidance.
provided optimised torque levels in a lightweight, www.warnerelectric-eu.com

January 2021 • INDUSTRIAL TECHNOLOGY EXTRA • p11