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MKD025B-144-GG1-KN Bosch Rexroth Indramat

MPN: R911267371

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The Bosch Rexroth Indramat MKD025B-144-GG1-KN is a servo motor that is part of the MKD Synchronous Motors series. It features a 40 mm centering diameter and a flange size of 54 mm, with a plain shaft and shaft seal. This model includes a holding brake with 1 Nm torque and uses resolver feedback for position detection.

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Product Description:

The MKD025B-144-GG1-KN is a servo motor built by Bosch Rexroth Indramat and supplied as part of the MKD Synchronous Motors series. As a compact servo actuator, it converts drive current into rotary motion for positioning tasks in automated machinery and assembly tooling. The motor carries size code 025 and length code B, placing it in a small frame class for installations where mounting space is limited. Its resolver-based position system supplies relative feedback to the drive controller so closed-loop motion can be executed with consistent repeatability during indexing, transfer, and short-cycle movement.

The motor delivers a continuous standstill torque of 0.9 Nm, allowing the axis to hold load without overheating under rated current. For power-off safety, the integrated holding brake supplies 1 Nm of locking torque, which helps restrain the rotor against small external forces when the drive is de-energized. Installation follows an IEC square flange pattern with a side length of 54 mm, and a centering recess of 40 mm keeps the housing aligned on the machine plate during assembly. Winding code 144 identifies the electrical resistance and inductance values expected by the matching drive, which helps the controller regulate current and torque correctly.

Electrical and feedback cabling exit on Side B of the housing, a layout that can simplify cable routing when several compact axes are mounted next to one another. Terminations are made in a sealed connection box, which protects internal joints from dust and oil. Mechanical power is transferred through a plain shaft, allowing the motor to be paired with suitable couplings without the clearance requirements associated with a keyed shaft. A shaft seal is fitted at the front bearing to limit lubricant migration and reduce the chance of coolant entering along the shaft surface. This arrangement suits light-duty pick-and-place modules and compact transfer stations that need a small servo motor with protected cable exits and a simple shaft interface.

Centering diameter
40 mm
Connection Direction
Side B
Connection Type
Connection box
Continuous Torque at Standstill
0.9 Nm
Encoder Type
Resolver feedback (RSF)
Flange size
54 mm
Holding Brake
With holding brake
Holding Brake Torque
1 Nm
Motor Length
B
Motor Size
025
Position Detection
Relative
Product type
Servo Motor
Shaft Design
Plain shaft
Shaft Seal
Yes
Winding Code
144
  • MKD025B144GG1KN
  • MKD025B 144 GG1 KN
  • mkd025b-144-gg1-kn
  • MKD25B-144-GG1-KN

Frequently Asked Questions about MKD025B-144-GG1-KN:

Q: What is the continuous torque at standstill for the MKD025B-144-GG1-KN servo motor?

A: The MKD025B-144-GG1-KN motor has a continuous standstill torque rating of 0.9 Nm.

Q: What type of encoder feedback does the MKD025B-144-GG1-KN motor utilize?

A: This model uses resolver feedback (RSF) for relative position detection.

Q: Is a holding brake present on the MKD025B-144-GG1-KN, and what is its torque?

A: A holding brake is included with this version, providing a brake torque of 1 Nm.

Q: How is the electrical connection arranged on the MKD025B-144-GG1-KN motor?

A: The electrical connection is made via a connection box situated at Side B of the unit.

Q: What type of shaft and seal does the MKD025B-144-GG1-KN incorporate?

A: This motor features a plain shaft equipped with a shaft seal for additional protection.


Internal Product Review

  • ‘‘The MKD025B-144-GG1-KN is a Bosch Rexroth Indramat servo motor with resolver feedback (RSF) that supports dependable motion control. A holding brake rated at 1 Nm and relative position detection give the unit precise stopping behavior and consistent feedback in servo applications. A Side B connection box simplifies cabinet integration and adds practical installation value.’’

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