MDD025A-N-100-N2G-040MC1

MDD Synchronous Motors

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The MDD025A-N-100-N2G-040MC1 motor from Bosch Rexroth Indramat is part of the MDD Synchronous Motors series. It delivers a nominal speed of 10000 min^-1 with a continuous standstill torque of 0.33 Nm and features a holding brake with 1.0 Nm torque, housed in a standard size 025 unit. The motor uses resolver feedback and a keyway shaft. It connects via a dedicated cable with coupling unit.

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
keyway

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

What does a “continuous torque at standstill” of 0.33 Nm imply for the MDD025A-N-100-N2G-040MC1 in duty cycles?

It means the motor can hold 0.33 Nm indefinitely without rotating, but heat buildup will limit how fast it can be repeatedly started or reversed. In applications with frequent starts, you’ll need sufficient cooling or allow dwell times to avoid thermal overload.

How does the holding brake rated at 1.0 Nm affect system safety and positioning when power is lost?

The holding brake ensures the rotor remains locked with up to 1.0 Nm when unpowered, preventing drift in vertical or inclined axes. However, it’s designed as a holding brake, not for dynamic braking under load or repeated engagement during motion.

For the product code MDD025A-N-100-N2G-040MC1 from Bosch Rexroth, what drive/controller compatibility and cable connectors are required?

It needs a digital-drive controller compatible with resolver (RSF) feedback and capable of providing brake supply (holding brake), plus the matching coupling-unit cable specified by Rexroth for side-A connection. Using non-matching connectors or drive firmware can degrade feedback accuracy or prevent brake activation.

How will “without shaft seal” influence environment suitability and maintenance schedules?

Without a shaft seal, contaminants like dust, moisture or lubricants can more easily enter the shaft area, potentially damaging bearings or causing corrosion. This makes it less suitable for harsh or wash-down environments; more frequent inspections and preventive lubrication might be required.

In what B2B applications does the combination of high-speed (10,000 min⁻¹), braking, and small torque make this motor especially advantageous?

It’s well-suited for packaging lines, pick-and-place robotics, semiconductor wafer positioning, or high-speed indexing where rapid starts/stops and precision override raw torque. These sectors benefit from compact size with resolvers, holding brake for positional stability, and low inertia for fast acceleration.

Common Misspellings

Internal Product Review

The MDD025A-N-100-N2G-040MC1 motor from Bosch Rexroth delivers a continuous torque of 0.33 Nm and operates at 10,000 min⁻¹. It includes resolver feedback, a keyway shaft, and a blocking brake with 1.0 Nm torque. This motor is ideal for precision applications in packaging, robotics, and semiconductor manufacturing.