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MDD025A-N-100-N2K-040MB1

MDD Synchronous Motors

Rated 4.4 stars (6 total reviews)
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1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The MDD025A-N-100-N2K-040MB1 motor from Bosch Rexroth Indramat is part of the MDD Synchronous Motors series. It offers a nominal speed of 10000 min⁻¹, a continuous torque at standstill of 0.33 Nm and a holding brake torque of 1.0 Nm. The integrated absolute encoder and resolver feedback ensure precise positioning, while standard balancing and housing provide reliable operation. It features a side B connector and keyway shaft.

Technical Specifications

Balancing
Standard

Holding Brake
With blocking brake

Holding Brake Torque
1.0 Nm

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
Without shaft seal

Shaft Type
keyway

Connection Direction
Side B

Connection Type
Connector

Product Type
Motor for digital drive controllers

Shaft End
Standard (without side B shaft end)

What are the dynamic performance implications of the 0.33 Nm continuous torque at standstill?

Because 0.33 Nm is relatively low, the motor requires gearing or motion profile design to avoid drops in torque at low speeds; it excels in applications needing precise torque during startup rather than high loads. Also, the motor’s responsiveness (torque/inertia ratio) will affect acceleration limits in robotics or pick-and-place systems.

How does the nominal speed of 10,000 min⁻¹ affect bearing life and lubrication?

At 10,000 rpm, bearings are subject to high centrifugal forces and heat, so high-grade bearings (possibly ceramic or hybrid) and regular lubrication or sealed for life designs are essential to maintain reliability. Cooling (air or liquid) and ensuring minimal misalignment are also crucial to avoid premature fatigue.

In what ways does having both a resolver and an integrated absolute encoder improve feedback accuracy?

The resolver provides rugged analog feedback, tolerating greater electrical noise and high temperature, while the absolute encoder allows exact position after power-loss and faster startup without homing; together they ensure high precision and robustness. This dual feedback is particularly beneficial in clean-code motion control systems or where safety or precision is critical.

What installation considerations arise from the keyway shaft and 40 mm centering diameter?

A keyway shaft requires precise key fits and shaft coupling to avoid backlash and misalignment; misaligned mounting can cause vibration and wear. The 40 mm centering diameter means mating hubs or adapters must match or be properly machined to distribute radial load, impacting mounting rigidity.

How does the holding (blocking) brake torque of 1.0 Nm influence system holding and safety?

The 1.0 Nm brake torque allows the motor to maintain position under modest loads when power is off or during stops, but for heavier external torques or high hatches, an external mechanical lock or safety brake may still be needed. The brake adds inertia and drag when disengaged, so its control (electrical supply, release time) must be considered in motion cycles.

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Internal Product Review

The MDD025A-N-100-N2K-040MB1 motor from Bosch Rexroth is designed for digital drive controllers and offers a nominal speed of 10000 min⁻¹ with 0.33 Nm torque at standstill. It includes resolver feedback, a 1.0 Nm blocking brake, and a keyway shaft with a 40 mm centering diameter. This motor is well-suited for use in robotics, packaging, and semiconductor manufacturing systems.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MDD025A-N-100-N2K-040MB1.
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