Technical data

Manual – Gear Units and Gearmotors

103

Brakes (→ GM)

Project Planning for AC Motors

7.10 Brakes (→ GM)

General On request, SEW-EURODRIVE motors and gearmotors can be supplied with an

integrated mechanical brake. The brake is a DC-operated electromagnetic disc brake

that is released electrically and applied using spring force. The brake is applied in case

of a power failure. It meets the basic safety requirements. The brake can also be

released mechanically if equipped with a manual brake release. You will receive a man-

ual lever with automatic reset. The brake is controlled by a control module that is either

installed in the motor conduit box or the control cabinet. For detailed information on

brakes from SEW-EURODRIVE, refer to the publication "Drive Engineering - Practical

Implementation – SEW Disc Brake."

A main advantage of brakes from SEW-EURODRIVE is their very short length. The

brake bearing end shield is an integral part of both the motor and the brake. The inte-

grated construction of the brake motor permits particularly compact and sturdy solu-

tions.

Basic structure The illustration below shows the basic structure of the brake.

00871BXX

Figure 46: Basic structure of the brake

1 Brake disc 5 Working air gap 9 Brake coil body

2 Brake endshield 6 Pressure plate 10 Motor shaft

3 Driver 7 of brake spring 11 Electromagnetic force

4 Spring force 8 Brake coil