MDD025A-N-100-N2K-040GF0
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD025A-N-100-N2K-040GF0 is part of the renowned MDD Synchronous Motors series designed for high-performance digital drive controllers. This motor for digital drive controllers features a compact motor size of 025 and delivers a nominal speed of 10000 min⁻¹, making it ideal for applications requiring precise speed regulation and responsive torque. With a continuous torque at standstill of 0.33 Nm, it provides stable holding power when the motor is stationary, ensuring reliable positioning in automation systems.
This synchronous motor integrates advanced feedback and control capabilities, including an integrated absolute encoder and resolver feedback for superior motion accuracy. The plain shaft design combined with a shaft seal protects internal components from contaminant ingress, enhancing longevity. The motor length code A and standard housing offer a balanced form factor that simplifies installation in compact spaces. Intended for direct connection, it features a connecting cable with coupling unit and a right connection direction, streamlining wiring and reducing installation time.
Built without a blocking brake, the MDD025A motor emphasizes efficiency and reduced maintenance, while its standard balancing ensures smooth operation at high speeds. The centering diameter of 40 mm and standard shaft end facilitate integration with a range of couplings and gear assemblies. These design choices yield a durable, low-noise motor suitable for continuous industrial use. By leveraging Bosch Rexroth Indramat’s precision engineering, this motor enhances system responsiveness, reduces downtime, and drives productivity in modern automation environments.
Technical Specifications
Balancing
Standard
Holding Brake
Without blocking brake
Centering Diameter
40 mm
Housing
Standard
Encoder
Integrated absolute encoder
Motor Feedback
Resolver feedback
Continuous Torque at Standstill
0.33 Nm
Motor Length Code
A
Motor Size
025
Nominal Speed
10000 min⁻¹
Shaft Seal
With shaft seal
Shaft Type
Plain shaft
Connection Direction
Right
Connection Type
Connecting cable with coupling unit
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
What is the thermal load behavior of the motor when operating at 10,000 min⁻¹ under continuous torque?
At 10,000 min⁻¹, even though the motor is sized for high nominal speed, continuous torque operation causes heating in the windings and bearings; adequate cooling and thermal margin must be provided to avoid thermal derating. Undersized cooling or ambient temperatures above spec can force reduction of duty cycle or risk overheating.
How does the presence of an integrated absolute encoder + resolver feedback system affect control precision and response time?
Dual feedback (absolute encoder + resolver) enables both fast response (via resolver) and exact position recall (via absolute encoder), improving settling time and reducing drift. This architecture allows closed-loop control with very low position error in start/stop or reversal applications.
What are the implications of a plain shaft with shaft seal versus having a side-shaft or shaft with bearings on both ends?
The plain shaft with seal simplifies mounting and minimizes complexity but requires attention to seal wear and ingress protection; no side-shaft means less support for heavy overhung loads, so coupling and load must be aligned and lightweight. Overhung torque or misalignment could overstress shaft bearings or seal, reducing lifetime.
How does continuous torque at standstill (0.33 Nm) translate into usable holding torque in practical automation systems?
0.33 Nm holding torque is modest—suitable for light loads or positional holding when coupled with geared or mechanical advantage; for heavier loads a mechanical brake or gearbox may be needed to keep load from creeping. Also, drive gains must be tuned to avoid oscillations when using stand-still torque in closed-loop hold.
What must an integrator check when mounting this motor to ensure the centering diameter (40 mm) and standard shaft end properly align with couplings and gear assemblies?
The mating coupling/gear must match 40 mm centering diameter to avoid misalignment; torque capacity of the coupling and its dynamic balancing must accommodate motor’s speed and torque without introducing imbalance. Also, shaft key or set-screw design must fit standard shaft end to avoid slippage under peak torque.
Common Misspellings
MDD-025A-N-100-N2K-040GF0
MDD025A N 100 N2K 040GF0
MDD025A-N-100-N2K-040-GF0
MDD025A-N-100-N2K-040-GFO
MDD025A-N-100-N2K-040GFO
MDD025AN100N2K040GF0
MDD25A-N-100-N2K-040GF0
MDDO25A-N-100-N2K-040GF0
MDDO25A-N-1OO-N2K-O4OGFO
Internal Product Review
The Bosch Rexroth Indramat MDD025A-N-100-N2K-040GF0 motor is a synchronous motor designed for digital drive controllers with a nominal speed of 10000 min⁻¹ and 0.33 Nm continuous standstill torque. It features an integrated encoder, resolver feedback, and a plain shaft with seal for accurate motion control and durability. Commonly used in electronics manufacturing, robotics, and textile automation, it supports precise, maintenance-efficient performance.
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We offer a repair service for the MDD025A-N-100-N2K-040GF0.
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