42.SM.200-44CJ KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 42.SM.200-44CJ is a synchronous servo motor from the SM Synchronous Servo Motors series. It operates at 330 volts with three phases and a motor speed of 4500 rpm. The motor features a 105 mm square flange, a 19 mm shaft diameter, and a 115 mm bolt circle.
Internal Product Review
The 42.SM.200-44CJ is a KEB synchronous servo motor built for precise motion control with a 3-phase configuration and 330 V operation. Rated for 4500 rpm and 225 Hz, the motor delivers confident speed performance and dependable response for demanding servo applications.
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Product Description:
The 42.SM.200-44CJ is a synchronous servo motor built by KEB for the SM Synchronous Servo Motors series. It is intended for closed-loop motion systems where stable torque and responsive speed control are needed for packaging stations, pick-and-place units, and compact tool drives. The motor combines its stator, feedback device, and mounting face in one housing, so it can connect directly to a compatible drive controller and mount cleanly to a gearbox or machine plate. This arrangement keeps the axis compact and supports accurate tracking of digital motion commands. Its integrated feedback components allow the drive to correct speed and position errors during changing load conditions.
The mounting face uses a 115 mm bolt circle, a 95 mm flange pilot, and a 105 mm square flange, which help center the motor accurately on adapter plates and reduce coupling misalignment. The winding is arranged for a 3-phase supply, and the drive can deliver up to 330 V line to line from its DC bus. At that output level, the motor reaches a rated speed of 4500 rpm, giving it fast response for medium-duty positioning work while allowing the controller to regulate velocity smoothly. The aluminum housing conducts heat through the mounting surface, so external fan hardware is not required.
The electrical base frequency is 225 Hz, which allows the controller to operate the motor through its intended speed range while maintaining smooth current control. Torque is delivered through a 19 mm shaft diameter with a 40 mm shaft extension, providing enough length for rigid couplings without adding unnecessary overhang load. This shaft layout supports secure clamping with standard hubs or couplings used on small to mid-sized motion assemblies. The compact housing is useful where several servo axes must fit in a limited machine envelope.
