MDD025A-N-100-N2G-040FE1
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD025A-N-100-N2G-040FE1 is part of the robust MDD Synchronous Motors series, engineered for high-precision digital drive controllers. This motor delivers a Nominal Speed: 10000 min⁻¹ and a continuous torque at standstill of 0.33 Nm, ensuring rapid acceleration from zero speed. Equipped with a Holding Brake featuring a blocking brake torque of 1.0 Nm, it secures loads instantly when power is removed. Designed as a Motor for digital drive controllers, its primary function is to provide accurate, repeatable positioning and speed regulation in demanding industrial automation systems.
Built around a motor size of 025 and a Motor Length Code: A, the MDD025A offers a compact footprint with a Centering Diameter: 40 mm for seamless integration. It employs resolver feedback to deliver high-resolution position sensing and feedback stability. The motor is fitted with a Plain Shaft and Standard (without side B shaft end), supporting direct coupling to loads. A Connecting cable with coupling unit provides a secure and reliable Connection Type, while the Connection Direction: Left orientation simplifies cable routing. The housing is classified as Standard, optimized for effective heat dissipation under continuous operation.
Additional features include Standard Balancing for vibration reduction and smooth operation, as well as a version without a shaft seal (Without shaft seal) to suit cleanroom or dry environments. The inclusion of a blocking brake enhances safety and positional holding under dynamic loads, contributing to system stability and reduced maintenance. This motor’s compatibility with digital drive controllers, combined with its efficient thermal management and high-speed capability, delivers enhanced productivity and minimized downtime. The MDD025A-N-100-N2G-040FE1 is ideal for precise motion control in packaging, assembly, and machine tool applications, providing reliable performance and simplified integration in automated production lines.
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
1.0 Nm
Centering Diameter
40 mm
Housing
Standard
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
Without shaft seal
Shaft Type
Plain shaft
Connection Direction
Left
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 are potential failure modes or maintenance-required features specific to the MDD025A-N-100-N2G-040FE1 motor from Bosch Rexroth?
Possible failures include resolver signal faults (due to wiring damage or EMI), brake wear (if used for frequent holding or power cycling), and bearing fatigue or overheating if mechanical loads exceed specs or lubrication is neglected. Scheduled maintenance of connectors and checks for insulation resistance, especially around the feedback cable and power connections, help avoid unexpected downtime.
What thermal limits or ambient specifications should be verified when using the MDD025A-N-100-N2G-040FE1 continuously under load?
You must ensure ambient temperature stays within permitted range (typically 0-45 °C) so natural convection cooling works; cabinet or enclosure must allow sufficient airflow since heat dissipation relies on housing. Also, verify duty cycles: long periods at or near standstill torque will raise temperature more quickly, needing either intermittent operation or forced cooling.
How does the built-in holding (blocking) brake of 1.0 Nm influence safety design and motion control when power is cut?
In power loss or “enable off” situations, the brake mechanically holds the rotor load up to 1.0 Nm, preventing drift or fall; this can allow designers to reduce or eliminate mechanical locks or counterweights if the brake torque is sufficient. However, brake response time, wear with frequent cycling, and external holding torque safety factors must be accounted for in durable designs.
Why is the motor size “025” and centering diameter 40 mm important for mounting and mechanical compatibility?
These define the flange and shaft fit tolerances, so mechanical interfaces (bearings, collars, couplings) match accurately; mismatch can cause misalignment, vibration, and premature wear. Also, standardization allows easier interchange with other size‐025 motors in a system
How does the 0.33 Nm continuous torque at standstill affect startup and load capacity?
It means the motor can hold and begin motion under that load without stalling, enabling smooth starts under static load; exceeding that torque during startup risks slipping or torque overload. Also, thermal heating during startup must be considered since stalled torque draws higher currents.
Common Misspellings
MDD-025A-N-100-N2G-040FE1
MDD025A N 100 N2G 040FE1
MDD025A-N-100-N2G-040-FE1
MDD025AN100N2G040FE1
MDD25A-N-100-N2G-040FE1
MDDO25A-N-100-N2G-040FE1
MDDO25A-N-1OO-N2G-O4OFE1
Internal Product Review
The Bosch Rexroth Indramat MDD025A-N-100-N2G-040FE1 motor offers a nominal speed of 10,000 min⁻¹ and 0.33 Nm continuous torque at standstill, making it suitable for precise motion tasks. It features resolver feedback, a holding brake with 1.0 Nm torque, and a plain shaft for direct coupling. Commonly used in packaging machines, assembly lines, and machine tool automation.
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the MDD025A-N-100-N2G-040FE1.
Want to 
