MKD041B-144-GP1-KN

MKD041B-144-GP1-KN is a Bosch Rexroth Indramat motor in the MKD Synchronous Motors series. The motor is size 041 with length B and winding code 144. Its 82 mm flange and 50 mm centering diameter support mechanical alignment during mounting. The keyed shaft transfers torque through a positive mechanical connection, while the shaft seal helps prevent contaminants from entering the housing. The IP65 protection category provides resistance to dust and water jets.

The motor produces 2.7 Nm of continuous torque at standstill and has a theoretical maximum torque of 11.3 Nm. Its characteristic speed is 6,000 min⁻¹, and its maximum speed is 7,500 min⁻¹. Peak current is 34.0 A. At 20ºC, the torque constant is 0.4 Nm/A and the voltage constant is 36.3 V per 1,000 min⁻¹, relating supplied current and generated voltage to motor output. The winding has 5 mH inductance and 1.8 Ω resistance at 20ºC, which affect current response and electrical losses. Three pole pairs generate the rotating magnetic field, and rotor inertia is 1.7 × 10⁻⁴ kgm². The 30-minute thermal time constant indicates the rate of motor temperature change.

Resolver feedback provides relative position detection with a system precision of ±8 angular minutes for motion control. The electrical interface uses a connection box oriented toward side B. An integrated holding brake supplies 2.2 Nm of braking torque to retain the shaft when drive power is removed. Insulation class F supports the motor’s thermal insulation requirements. The permissible ambient temperature is 0–40ºC.