MDD025A-N-100-N2G-040GA1

MDD Synchronous Motors

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The MDD025A-N-100-N2G-040GA1 from Bosch Rexroth Indramat offers a motor size of 025 and a nominal speed of 10000 min⁻¹. Part of the MDD Synchronous Motors, it features a blocking brake and delivers a continuous torque at standstill of 0.33 Nm.

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This motor uses resolver feedback, has a centering diameter of 40 mm, and incorporates a plain shaft design. It connects via a side A connector and includes a shaft seal.

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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
With shaft seal

Shaft Type
Plain shaft

Connection Direction
Side A

Connection Type
Connector

Product Type
Motor for digital drive controllers

Shaft End
Standard (without side B shaft end)

Frequently Asked Questions

How does the 1.0 Nm holding (blocking) brake influence system safety and startup behavior?

The brake allows the motor shaft to be locked when power is off, preventing load sag or drift, which is critical for safety in vertical or heavy-load assemblies. However, the drive/brake actuation coordination must ensure torque from brake release is achieved before motion commands to avoid jerks or misalignment.

What are the trade-offs of having “standard balancing” in this motor?

Standard balancing reduces vibration at moderate speeds but may leave minor unbalance effects at very high RPMs or in ultra-precision applications. Higher classes of balancing are often required for long shafts or critical spindle applications to avoid resonances.

How is the “side A connector” / “connection direction” relevant in system integration?

The connector location and direction affect how cabling is routed, how nearby components interfere, and how flexing or bending loads occur on the cable. For space- constrained assemblies, ensuring the side A connector does not collide or impose tight bend radii helps in reliability and serviceability.

How does the product code “MDD025A-N-100-N2G-040GA1” by Bosch Rexroth encode motor features I need to know?

The code includes motor size (“025”), nominal speed (“100”), feedback type (“N2G”), centering diameter (“040”), motor length code (“A”), and design variants (“GA1”); knowing this helps to match exact motor footprint, feedback, and performance. Mis-matching any part of the code may lead to incompatibilities (mounting, connectors, feedback, torque curves).

In what B2B/build-automation or semiconductor equipment contexts is this motor particularly well suited?

It fits well where compact, high-speed motion with holding ability is needed—e.g. wafer handling, precision pick-and-place, rotary indexing tables. Its resolver feedback and blocking brake add reliability and safety in continuous-running or power-down scenarios, reducing drift and maintenance downtime.

Common Misspellings

Internal Product Review

The MDD025A-N-100-N2G-040GA1 motor from Bosch Rexroth features a nominal speed of 10,000 min⁻¹ and continuous torque of 0.33 Nm. It includes resolver feedback, a plain shaft, and a 1.0 Nm holding brake with shaft seal, making it suitable for precise positioning. This motor is ideal for use in semiconductor equipment, CNC automation, and packaging machines.