Custom magnetic brake is smaller and quicker to assemble

SG Transmission's client required a 4Nm brake that was reduced in size to fit its existing motor frame with flange square mounting, yet the custom brake had to retain all the performance benefits of the standard SG Transmission size 50 brake. The custom brake incorporated a specially designed flange and reverse mounted brake hub to keep the overall length as compact as possible; this enabled the brake airgap to be pre-set by SG Transmission. Furthermore, the custom design enabled the customer to fit the brake straight into its motor, which significantly reduced assembly time.

A permanent magnet brake is a 'power-off' device that is designed so that when power is removed from the unit, the magnetic energy of a permanent magnet disc is channelled and controlled to attract the steel armature plate across an air-gap. This holds it in its place against a stationary field housing to give the required braking effect.

Adam Russell, a Design Engineer, at SG Transmission, said: "We are finding that more and more of our clients are moving away from spring applied brakes and switching to permanent magnet brakes when controlling servo motors; this is due not only to the fact that they are zero backlash, but also their compact size and high reliability. SG Transmission can provide a migration service from one kind of brake to the other, and it is proving to reap dividends for our clients."

SG transmission is now working on future projects with this client, providing both design and manufacturing expertise.

SG Transmission is a manufacturer of bespoke electromagnetic brakes and clutches, specialising in developing engineering and manufacturing solutions to clients' specific problems.

Follow the link for more information about SG Transmissions' customisation capabilities.