Product Description:

The MKD025B-144-KG0-KS is a compact servo motor manufactured by Bosch Rexroth Indramat for the MKD Synchronous Motors series. It is intended for tight-space rotary axes where precise velocity and position control are required, such as indexing mechanisms, light material-handling arms, and auxiliary packaging spindles. When paired with a drive controller, the motor supports closed-loop operation so commanded motion profiles can be repeated accurately in automated equipment.

The motor can deliver a continuous standstill torque of 0.9 Nm, supplying enough holding force for axes that must maintain position when idle. A flange dimension of 54 mm and a centering diameter of 40 mm form the mounting interface and help keep axial runout low. The stator uses insulation class F and winding code 144. Position data comes from resolver feedback with integrated encoder, so absolute rotor angle is reported through more than 4096 mechanical revolutions. An external connection box houses both power and feedback terminals, and the cast-aluminum enclosure has an IP65 rating to block dust and water during washdown cycles. The motor is supplied without a holding brake, reducing mass when the machine already provides mechanical locking.

Wiring exits the housing on Side B, which lets the motor sit flush against brackets while cables route toward the machine frame. A plain shaft with a shaft seal mates to clamp couplings and helps keep lubricants inside the gearbox. Combined with resolver feedback, a system precision of ±8 angular minutes supports fine velocity tuning in synchronized multi-motor lines. Operation is specified for ambient temperatures from 0 °C to 40 °C, which matches typical control cabinet climates. The motor size is 025, the length code is B, and the unit uses absolute position detection with a box connection.