Product Details Supplier Info More products

SG Transmission has designed a custom-made, size Ø50 permanent magnet brake, for a major global motor manufacturer, which will meet the same performance criteria, whilst being 7% smaller.

The client required a 4Nm brake design solution, reduced in size to fit its existing motor frame with flange square mounting, whilst retaining all the performance benefits of the standard SG Transmission size Ø50 brake. The brake incorporated a custom flange and reverse mounted brake hub, to keep the overall length as compact as possible, this allowed the brake airgap to be pre-set by SG Transmission. A unit was then supplied which allowed the customer to fit the brake straight into its motor, significantly reducing assembly time.

A permanent magnet brake is a ‘power-off’ device which 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. Therefore, holding it in its place against a stationary field housing to give the required braking effect.

Adam Russell, 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 bespoke manufacturer of electromagnetic brakes and clutches, specialising in developing engineering and manufacturing solutions to meet specific client requirements.

SG Transmission

SG Transmission is a UK manufacturer of electromagnetic clutches and brakes, offering bespoke designed solutions to a global portfolio. Operating from a custom-built manufacturing facility, SG Transmission has the capability to design and manufacture a wide variety of made-to-order clutches and brakes, providing innovative solutions for its customers.

SG Transmission began life in 1972 and has, since then, been designing and manufacturing electromagnetic clutches and brakes for its global customer portfolio. Fundamentally an engineering business, SG Transmission can provide innovative solutions for a specific market or  application through its in-house design team.

SG Transmission designs and manufactures a variety of electromagnetic clutches and brakes for a diverse group of industries including; medical, military, robotics, material handling, leisure and so on. SG Transmission is one of few manufacturers to offer a permanent magnetic clutch solution and has recently designed and manufactured this particular clutch for a global, medical device manufacturer.

The SG Transmission manufacturing facilities were purpose built to meet the existing and future capacity demands of the business and therefore has the capability for large or small volume orders. The British manufacturer continues to invest in the latest CNC machinery to improve efficiency and has a clear focus on continuous improvement in lean and efficient cellular manufacturing.

View full profile