The brakes

The brake variants in the modular system
Smaller holding torques are required for inverter operation, and smaller braking torques for energy efficient motors. Today's brakes are often dimensioned too large for this. This is why the new motor modular system from SEW-EURODRIVE makes it possible to choose from up to three brake sizes for each motor size. The BE brake is based on the extremely successful BM(G) brake, but was further developed in many aspects.

The brake size has so far been unalterably linked to the motor size. "Less" brake is only possible by reducing the braking torque with a modified brake spring. The new combination options of motors with brakes are no longer subject to this unalterability. The DR motor can be combined with two or three different BE brake sizes.

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Application-optimized brake sizes
Depending on the required braking torque or braking work, the DR motor can be combined with the ideal BE brake. Brake mounting to motors size 90 and larger offers another special feature. The brake itself is mounted on a friction plate, which only has to be attached to the endshield. Without opening the motor, the unit can now be demounted and replaced – also by a larger or smaller brake.

Selection and project planning is based on two criteria only: braking torque and braking work. A BE-2 brake for the DR.80 differs from a BE-2 for the DR.90 in very few aspects, etc.

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Regardless of the mounting position, the manual brake release of the BE brakes is application-optimized
The manual brake release, tried and tested as HR (automatic disengaging) or HF (lockable), is another field in which SEW-EURODRIVE is breaking new ground. So far, HF or HR could only be mounted to the motor in one mounting position. BE05 to BE32, i.e. from DRS71 to 225, allow for 4 different mounting positions.

If the terminal box is at 0º, the standard position of the brake is 303º. 213º, 123º or 33º are also possible if the manual brake release does not collide with other elements. The mounting position can be changed after the drive has been delivered. Additional features of the brakes are: Manual brake release automatic disengaging lockable

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