06.17.670-930U KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 06.17.670-930U is part of the Combistop Spring Brakes series and offers a brake torque of 25 ft lbs with an input voltage of 460 VAC. This brake has an approximate weight of 55 lbs and supports a Nema frame size of 182C/184C. It features a bolt circle of 7.250 inches and a pilot diameter of 8.500 inches.
Internal Product Review
The 06.17.670-930U is a KEB Combistop spring brake rated for 25 ft lbs of brake torque and 460 VAC input. Release time of 100 ms and DC engagement time of 40 ms support quick, repeatable stopping response in motor brake applications. The 182C/184C NEMA frame fit and 330 lb overhung load rating make the unit a strong choice for dependable industrial braking.
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Product Description:
The 06.17.670-930U is a spring-applied, electrically released brake manufactured by KEB as part of the Combistop Spring Brakes series. Installed between a motor and its driven load, the device clamps the shaft whenever electrical power is removed, protecting vertical axes, conveyors, and process lines against uncommanded motion. When the coil is energized, magnetic force lifts the friction plates and releases the shaft. The unit provides consistent holding force that complements variable-frequency drives and other automation hardware without relying on hydraulic or pneumatic systems.
Electrical control is handled by a winding that accepts 460 VAC, allowing direct connection to standard plant power. When the coil is energized, the armature separates and releases the brake within 100 ms. With rapid coil-current interruption, the brake re-engages in 40 ms after power is removed. The spring stack delivers 25 ft-lb of static torque, while the rotating element contributes only 3.9 × 10⁻³ kg·m² of inertia, helping the drive remain responsive. Continuous slip dissipation is rated at 300 J/s, and cumulative friction work may reach 11 × 10³ J before the lining requires inspection. The housing has an overall depth of 7.000 in, and the complete assembly weighs 55 lb.
A 7.250 in bolt circle and an 8.500 in pilot diameter center the brake case on the motor endbell. These dimensions match the register on a 182C/184C motor frame. The splined hub accommodates a 1.125 in shaft, providing a positive connection between the shaft and rotating friction assembly. Integrated bearings withstand an overhung radial load of 330 lb, allowing pulleys or sprockets to extend beyond the faceplate. When alternating-current switching is used instead of rapid coil-current interruption, spring engagement takes 900 ms. This longer engagement time must be accounted for when configuring emergency-stop timing so the brake develops full holding torque at the intended point in the stopping sequence.
