MKD041B-144-KG1-KN Bosch Rexroth Indramat
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MPN: R911260465
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The Bosch Rexroth Indramat MKD041B-144-KG1-KN is a servo motor from the MKD Synchronous Motors series, featuring a plain shaft and flange size of 82 mm. This motor includes resolver feedback with integrated encoder for absolute position detection above 4096 revolutions and is equipped with a holding brake providing 2.2 Nm of torque. The unit offers a centering diameter of 50 mm and uses a side B connection with a connection box.
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Product Description:
The MKD041B-144-KG1-KN is a servo motor produced by Bosch Rexroth Indramat for the MKD Synchronous Motors series. As a permanent-magnet AC unit, it converts electrical energy from a drive controller into rotary motion for positioning tasks in industrial automation. The motor uses a winding code 144 stator and is built in length B within the size 041 frame, giving machine designers a compact choice for medium-precision axes.
The mechanical interface is defined by a centering diameter of 50 mm and an 82 mm square flange, allowing direct coupling to gearboxes or load brackets without alignment adapters. Continuous torque at standstill is rated at 2.7 Nm; this is the maximum sustained output before thermal limits are reached when the rotor is locked. Connections are routed on the Side B of the housing through a sealed connection box, simplifying cable exit inside tight cabinets. Rotor position is reported by a resolver feedback device that is integrated with the encoder electronics, enabling sinusoidal commutation and smooth low-speed control. Together with the drive firmware, the absolute count is retained over power cycles because position detection spans more than 4 096 revolutions. The dedicated winding and compact stator laminations keep inertia low for rapid load acceleration.
A permanent-magnet holding brake supplies 2.2 Nm of static torque to keep vertical or overhung loads stationary during power loss. A positive-contact shaft seal blocks coolant and dust from entering the bearing cavity, so the motor can be mounted in splash zones without additional covers. The integrated electronics deliver Absolute (>4096 revs) feedback to the controller immediately after power-on, eliminating homing moves in multi-axis lines. A plain shaft transmits torque via friction couplings, reducing backlash compared to keyed fits and supporting high-resolution trajectory profiles.
Frequently Asked Questions about MKD041B-144-KG1-KN:
Q: What type of shaft and sealing does the MKD041B-144-KG1-KN servo motor have?
A: The MKD041B-144-KG1-KN features a plain shaft design with a shaft seal for additional protection against contaminants.
Q: Does the MKD041B-144-KG1-KN include a holding brake and what is its torque?
A: This model comes equipped with a holding brake that provides a holding torque of 2.2 Nm.
Q: What type of encoder is used in the MKD041B-144-KG1-KN and how does it detect positions?
A: The MKD041B-144-KG1-KN uses resolver feedback with an integrated encoder for position detection and supports absolute position detection for more than 4096 revolutions.
Q: Where is the connection located on the MKD041B-144-KG1-KN and what type is it?
A: The electrical connection for this motor is located on Side B and uses a connection box.
Q: What is the continuous torque at standstill for the MKD041B-144-KG1-KN?
A: This motor has a continuous standstill torque rating of 2.7 Nm, suitable for steady state applications.
