Product Description:

The 06.03.100-5377 is a spring-applied, electrically released brake produced by KEB and assigned to the Combistop Spring Brakes series. Designed for industrial automation axes, the unit clamps the shaft when power is removed, providing fail-safe holding during stops or emergency shutdowns. By integrating directly onto the driven machine through its round flange mounting, the brake supports controlled deceleration and secure static positioning in conveyor modules, packaging equipment, and general-purpose servomotor assemblies.

Its energy coil draws 15 W at rated voltage, generating the magnetic force needed to overcome the compression springs and release the rotor. The brake provides a holding torque of 7 Nm, which supports static loads in medium-inertia drives. The allowed continuous operating speed reaches 8000 rpm, while friction heat is limited to 80.6 J/s to help prevent lining damage during long duty cycles. Dynamic engagement occurs in no more than 90 ms, aided by a precisely ground armature that crosses a nominal air gap of 0.2 mm. Mounting is completed through the round flange pattern so the brake centers on the motor end bell without additional alignment fixtures.

During release, separation of the friction faces takes place within 30 ms, which helps limit residual drag and reduce motor run-up losses. Although regular service speed is capped at 8000 rpm, the mechanical components can tolerate a brief operating ceiling of 12000 rpm for overspeed events. The steel housing measures 80 mm in outside diameter, giving the unit a compact footprint relative to its torque class. Over its life, the friction lining is qualified for total abrasion work of 9.5 MJ, and individual switching events can absorb up to 1900 J. This supports repeated start-stop operation in indexing tables and pick-and-place gantries.