Product Description:

The MKD025B-144-GP0-KS is a servo motor manufactured by Bosch Rexroth Indramat as part of the MKD Synchronous Motors series. Its size code 025 and length code B keep the frame compact, while winding code 144 matches the electrical values used by compatible Indramat drives. The unit is supplied without a holding brake, so static load retention must come from drive torque or an external locking device. Its compact frame also suits moving assemblies and machine sections where installation space is limited. In packaging, assembly, and handling lines, it provides controlled rotary motion for axes that need repeatable speed regulation and accurate indexing.

At standstill, the motor can supply 0.9 Nm of continuous torque, which suits light linear actuators and small rotary tables. The front face uses a 54 mm flange size, and concentric alignment is maintained by the 40 mm centering diameter for consistent mounting accuracy. Resolver feedback reports rotor angle for relative position detection, and the closed loop reaches a system precision of ±8 angular minutes. The resolver signal also gives the drive a stable reference for commutation and speed control across the operating range. Power and feedback conductors exit on side B, and a sealed connection box houses the terminals for strain relief and cable shielding inside the machine enclosure.

The gray aluminum housing has an IP65 rating, and a shaft seal helps keep contaminants away from the bearing set. Torque is transferred through a shaft with a keyway, which supports secure coupling to driven machine elements. The winding system uses Class F insulation so the motor can handle the heat that develops during repeated acceleration and deceleration. The permitted ambient temperature range is 0–40 °C, which fits the controlled conditions common in industrial cabinets and enclosed machine sections. The motor is suited to enclosed machine sections where sealed cable entry, reliable coupling, and consistent rotary response are required.