MDD025A-N-100-N2K-040PD1

MDD Synchronous Motors

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The Bosch Rexroth Indramat MDD025A-N-100-N2K-040PD1 motor belongs to the MDD Synchronous Motors series with an integrated absolute encoder. It delivers continuous torque at standstill of 0.33 Nm, includes 1.0 Nm blocking brake and runs at nominal speed of 10000 min⁻¹. It uses resolver feedback and a 40mm diameter.

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
With shaft seal

Shaft Type
keyway

Connection Direction
Side B

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 “continuous torque at standstill” mean for the Bosch Rexroth MDD025A-N-100-N2K-040PD1 motor in practical applications?

It means the motor can sustain 0.33 Nm torque without rotating, useful for holding position in robotics or clamping in packaging; but thermal buildup from a stationary load must be managed (via cooling or duty cycle) since heat cannot dissipate via motion.

How does the blocking brake’s 1.0 Nm holding torque affect safety and system design?

The 1.0 Nm brake allows the shaft to resist external forces when power is off, enabling safe stoppage in automation; designers must ensure the brake activation mechanism (power, signal, mechanical linkage) is integrated into the control logic and failsafe paths.

What are the implications of the motor’s nominal speed of 10,000 min⁻¹ for drive electronics and mechanical components?

High nominal speed demands precise balancing of shaft and rotor to avoid vibration, and controllers must support sufficient switching frequency and low inductance current paths to accurately commutate at that speed; mechanically, bearings, couplings, and cooling must be rated for sustained high RPM.

What benefits and trade-offs come from having a resolver feedback system paired with an integrated absolute encoder?

The resolver gives rugged, analog feedback robust to temperature/vibration, while the absolute encoder ensures known position after a power cycle; trade-offs include increased system complexity, higher cost, and possibly more cabling or converter electronics.

How does the 40 mm centering diameter influence mechanical integration in assemblies?

A 40 mm centering diameter sets the precision interface for mounting; it allows tighter alignment tolerances, reduced misalignment torque loads, and better dynamic stiffness, but mating parts must be machined accurately to that diameter to realize benefits.

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Internal Product Review

The MDD025A-N-100-N2K-040PD1 motor from Bosch Rexroth operates at 10,000 min⁻¹ and provides 0.33 Nm continuous torque. It features a keyway shaft, blocking brake with 1.0 Nm holding torque, and integrated absolute encoder with resolver feedback. This motor is suited for robotics, electronics assembly, and packaging machinery.