DK.63.G6.B/MB2.WE/661 KEB
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The DK.63.G6.B/MB2.WE/661 is a synchronous servo motor from the SM Synchronous Servo Motors series by KEB. It offers a rated power of 0.12 kW, has a nominal speed of 910 rpm, and a protection class of IP54. The motor weighs 5.1 kg and features a brake torque of 5 Nm with a brake release time of 40 ms.
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Product Description:
The DK.63.G6.B/MB2.WE/661 is a synchronous servo motor produced by KEB within the SM Synchronous Servo Motors series. This compact unit delivers closed-loop rotary motion for automation tasks that require repeatable positioning at moderate speeds. When paired with a compatible KEB inverter, the motor converts electrical power into controlled torque for conveyors, pick-and-place axes, and small assembly stations. Its compact housing allows it to fit machinery with limited installation space while supporting accurate speed and position control.
At its continuous operating point, the motor produces 0.12 kW while the stator current remains at 0.54 A. The permanent-magnet rotor operates at 910 rpm, a speed suited to gear-driven or direct-drive applications. A power factor of 0.67 indicates the presence of reactive power, which the inverter’s vector control manages during operation. Full-load efficiency reaches 50.6%, placing the motor in the standard IE2 efficiency class for fractional-kilowatt devices. A starting current ratio of 2.8 and a starting torque ratio of 2.7 provide sufficient breakaway capacity without requiring oversized supply components. These starting characteristics help the motor accelerate connected loads while maintaining controlled current delivery from the inverter.
The braking system produces 5 Nm of holding torque and releases within 40 ms after the drive energizes the release coil. Rotor inertia is 4.2 kgcm², balancing responsive acceleration with speed stability during load changes. The housing weighs 5.1 kg, and the ground shaft has an 11 mm k6 diameter for use with standard couplings. An enclosure rating of IP54 protects the internal windings against limited dust ingress and water splashes commonly encountered on factory floors. The pull-out torque ratio of 2.8 allows the motor to withstand momentary mechanical overloads without losing synchronism. Proper coupling alignment and secure mounting help prevent excessive bearing loads during repeated starts, stops, and changes in rotational direction.
