MDD025A-N-100-N2G-040FC0

MDD Synchronous Motors

Rated 4.6 stars (7 total reviews)

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The MDD025A-N-100-N2G-040FC0 is a motor produced by Bosch Rexroth Indramat. Part of the MDD Synchronous Motors series, it delivers 0.33 Nm torque. It has a plain shaft, 40 mm centering diameter, and a side A cable coupling. It features standard housing without brake or shaft seal and suits digital drive controllers.

Technical Specifications

Balancing
Standard

Holding Brake
Without blocking brake

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
Side A

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

How does the absence of a holding or blocking brake influence safety and motion control strategies?

Without a brake, the motor cannot hold position under external loads when unpowered or during power loss; this demands mechanical locking or safety interlocks in vertical or heavy-load applications. Motion control must include failsafe stops, power-down braking via drive or external brake, and possibly monitoring of shaft back-drive.

What are the trade-offs of having a standard housing vs. a housing with special features (e.g. seals or protection against ingress)?

Standard housing reduces cost and size, but offers lower protection (e.g. no shaft seal) so vulnerability to environmental factors (dust, liquids) increases; special versions add protection but increase cost, size, and possibly affect thermal dissipation. For industrial or B2B environments, selection of housing type should consider cleaning, washdowns, or exposure to contaminants.

Can this motor reliably support high-frequency switching or rapid reversals, such as in packaging line or semiconductor tool applications?

Yes, provided the controller (drive) supports high switching rates, fast current loop response, and that the motor’s thermal capacity and mechanical load inertia are compatible; rapid reversals increase cyclical stresses on bearings and feedback components. The resolver feedback helps maintain accurate positioning during dynamic behaviour, but duty cycle and peak torques must be within spec.

In what ways does the 40 mm centering diameter impact the coupling design and alignment tolerances?

A 40 mm centering diameter means the mounting housing and coupling must accurately match that dimension to maintain concentricity; misalignment can cause vibration, increased radial loads on bearings, and premature failure. Couplings should accommodate thermal expansion and misalignment without imposing excessive loads on the shaft.

What must be considered when selecting a drive to run the MDD025A-N-100-N2G-040FC0 motor?

The drive must support resolver feedback input, match the continuous torque & speed (10,000 min⁻¹), and provide sufficient current headroom for peaks. Additionally, wiring, filtering, and the drive’s cooling capacity must accommodate the motor’s thermal dissipation during high-duty cycles.

Common Misspellings

Internal Product Review

The MDD025A-N-100-N2G-040FC0 motor by Bosch Rexroth provides 0.33 Nm continuous torque and operates at a nominal speed of 10000 min⁻¹. It includes resolver feedback, a plain shaft, and connects via a coupling cable. This motor is commonly used in packaging systems, semiconductor tools, and textile machinery.