07.06.671-422U KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 07.06.671-422U is part of the Combibox Clutch Brakes series and offers a clutch rated torque of 15 Nm and a brake rated torque of 12 Nm. The clutch friction rate is 114 J/s while the brake friction rate is 80 J/s. This unit has a maximum speed of 3000 rpm, with an armature inertia of 2.62×10^-4 kgm² and a rotor inertia of 2.98×10^-4 kgm².
Internal Product Review
The 07.06.671-422U is a KEB Combibox clutch brake built for dependable cycling up to 3000 rpm. Rated output is well balanced with 15 Nm clutch torque and 12 Nm brake torque, giving the assembly a very capable performance range for indexing and stopping duties. Wear work rated at 16.3×10^6 J supports long service intervals and makes the unit an excellent choice for production machinery.
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Product Description:
KEB manufactures the 07.06.671-422U as part of its Combibox Clutch Brakes series. The unit combines an electromagnetic clutch and a spring-applied brake in a single assembly, allowing the mechanism to transmit drive torque and hold loads without separate components. In automated conveyors, packaging stations, or positioning tables, this compact module transmits motion when the clutch is energized and secures the shaft when the brake coil is de-energized. This operating arrangement provides controlled start-and-stop sequences for repetitive processes while keeping the clutch and brake functions within one housing.
The brake develops a holding torque of 12 Nm, while the clutch can transmit up to 15 Nm. These torque limits indicate the maximum rotational loads permitted during the holding and engagement phases. Continuous operating speed is limited to 3000 rpm, so the connected shaft must remain at or below this limit during service. Precise operation requires an initial working gap of 0.3 mm between the magnetic faces, allowing rapid magnetic engagement without excessive coil current. Under standard operating conditions, the energized brake coil dissipates 21 W of power. This value supports control relay selection and heat management within compact equipment enclosures.
The clutch coil consumes 20 W while the assembly transfers motion, producing a thermal load similar to that of the brake coil. The friction pairs can absorb up to 3.1 × 10³ J during a single emergency stop. The clutch and brake each have a wear work rating of 16.3 × 10⁶ J, which indicates the cumulative friction energy permitted over their service life. Dynamic response is influenced by a rotor inertia of 2.98 × 10⁻⁴ kg·m² and an armature inertia of 2.62 × 10⁻⁴ kg·m², allowing moderate acceleration without imposing excessive inertial demand on the drive. As lining wear increases the working gap, the built-in adjustment feature provides an additional 0.6 mm of travel. The clearance can therefore be corrected before friction plate replacement is required.
