08.10.370-433U KEB
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The KEB 08.10.370-433U is an electromagnetic clutch and brake unit from the Combibox Clutch Brakes series. It features a rated clutch and brake torque of 30 Nm, supports a maximum speed of 3000 rpm, and is configured with a shaft in and out design. The device also provides brake friction power of 114 J/s and clutch friction power of 161 J/s, with feet mounting.
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Product Description:
The 08.10.370-433U Combibox assembly is manufactured by KEB as part of the Combibox Clutch Brakes series. This electromagnetic clutch and brake assembly is installed between a motor and driven equipment to engage torque when current is applied and hold position when power is removed. In automated lines, it allows one motor to start, stop, and index loads on demand while coordinating mechanical motion with controller timing.
The clutch section has a thermal dissipation capacity of 161 J/s, which indicates how much sliding energy it can absorb without excessive heat buildup. Its coil draws 28 W, allowing the control power supply to be sized for the electrical load. When powered, the clutch transmits up to 30 Nm of torque, matching the brake rating and providing balanced performance across the assembly. The maximum operating speed is 3000 rpm, and exceeding this value may accelerate wear on the friction surfaces. Proper engagement requires a nominal air gap of 0.35 mm, and maintaining this clearance helps prevent coil overheating. The assembly has a shaft input and a shaft output, while foot mounting allows the housing to be bolted directly to a machine base. The armature has a mass moment of inertia of 8.59 × 10⁻⁴ kg·m², and the rotor has a mass moment of inertia of 7.78 × 10⁻⁴ kg·m². These inertia values affect the acceleration and deceleration response of the connected drive train.
The brake accepts a friction load of 114 J/s while consuming 21 W of coil power, supporting frequent stops without placing excessive demand on the low-voltage supply. Friction work per cycle must remain below 4.8 × 10³ J to prevent excessive heating and thermal damage to the linings. Wear can be compensated for by readjusting the mechanism when total plate travel reaches a clearance of 0.7 mm, restoring the required operating gap. The brake secures the load after the clutch releases, while the foot-mounted frame aligns both functions around the same shaft centerline. This arrangement allows the clutch and brake to operate in a shared housing without requiring separate mounting structures.
