Product Description:

The 06.06.440 combibox clutch-brake assembly is manufactured by KEB as part of the Combibox Clutch Brakes series. It integrates an electromagnetic clutch with a permanent-magnet brake so that a drive train can be engaged for motion or locked for holding by a single, compact device. In automated conveyors, packaging lines, or positioning tables, the unit permits fast torque transfer during acceleration and secure shaft arrest during dwell periods, reducing component count and wiring complexity in the control cabinet.

The clutch section is powered with a standard supply of 24 V DC; under this voltage it uses the energized-to-engage mode, meaning torque is transmitted only while the coil is energized. Electrical demand on the clutch winding is 15 W, and that input yields a rated transfer capability of 7 Nm. A factory-set working air gap of 0.2 mm affects release time and must remain within tolerance as the friction faces wear. Mechanical connection is handled through a B5 (2) input flange, and the assembly mounts in a bore-in/shaft-out configuration that simplifies inline installation. The armature inertia is 0.84 × 10⁻⁴ kg·m², minimizing additional load on the drive motor during starts and stops.

The brake side uses a permanent-magnet design and works in the energized-to-disengage mode, so it clamps the shaft whenever power is removed. Its coil draws 13 W and can hold up to 6 Nm of static torque, allowing vertical or overhung loads to remain stationary without gearbox back-drive. Maximum rotational speed for either element is 3,000 rpm, ensuring compatibility with common servo or induction motors. Friction work capacity to 0.1 mm wear depth is 9.5 × 10⁶ J, and the mechanism allows a total readjustment clearance of 0.4 mm before refurbishment is required. System dynamics are aided by a rotor inertia of 1.07 × 10⁻⁴ kg·m², which keeps deceleration response predictable when the brake is applied.