MDD093D-N-040-N2M-130PA2

MDD Synchronous Motors

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The MDD093D-N-040-N2M-130PA2 motor from Bosch Rexroth Indramat's MDD Synchronous Motors series is designed for digital drive controllers. It features an integrated multiturn absolute encoder, digital servo feedback (DSF), and a blocking holding brake delivering 22 Nm torque. The motor offers 24.0 Nm continuous torque at standstill and operates at a nominal speed of 4000 min⁻¹. Its 130 mm centering diameter and keyway shaft ensure secure mounting.

Technical Specifications

Balancing
Standard

Holding Brake
With blocking brake

Holding Brake Torque
22 Nm

Centering Diameter
130 mm

Housing
Standard

Encoder
Integrated multiturn absolute encoder

Motor feedback
Digital servo feedback (DSF)

Continuous Torque at Standstill
24.0 Nm

Motor Length Code
D

Motor Size
093

Nominal Speed
4000 min⁻¹

Shaft Seal
With shaft seal

Shaft Type
keyway

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

What tolerances and alignment issues should I consider when mounting the MDD093D-N-040-N2M-130PA2 from Bosch Rexroth?

Even small misalignment or angular offset can introduce radial loading that shortens bearing life, so flange and coupling alignment must stay within manufacturer-specified tolerances. Also, the 130 mm centering diameter demands matching precision in the mating surface to avoid eccentric loading.

How does the 22 Nm blocking holding brake affect dynamic motion sequences?

The brake must be released (powered) before motion, adding a small delay in control logic, and residual drag or friction from the brake mechanism can minimally affect low-torque moves. In high repeat-motion cycles, frequent brake actuation may marginally heat the brake coil and slightly influence duty cycling.

What is the impact of integrated multiturn absolute encoder and DSF on system startup and positioning?

Because the encoder is absolute and multiturn, it retains its position across power cycles, eliminating the need for homing moves and enabling immediate closed-loop control. The DSF (digital servo feedback) provides real-time rotor position to the controller, enhancing control bandwidth and reducing latency in motion loops.

How do I size cabling and drive electronics for 24 Nm continuous torque at standstill?

At standstill the motor draws its maximum current, so cables, connectors and drive hardware must be rated to that peak current at ambient and temperature derating. Also ensure the drive’s current limit and thermal model support continuous holding without overtemperature.

How does the presence of a keyway shaft affect torsional stiffness and coupling design?

The keyway introduces a stress concentration and slightly reduces torsional stiffness compared to a plain shaft, so select couplings that accommodate the key and avoid altering the stress profile. Also, ensure the key is properly sized and seated to prevent backlash in high-precision use.

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Internal Product Review

The MDD093D-N-040-N2M-130PA2 motor by Bosch Rexroth features a continuous torque of 24.0 Nm and a nominal speed of 4000 rpm. It includes a 22 Nm holding brake, integrated multiturn absolute encoder, and digital servo feedback for accurate control. This motor is ideal for applications in robotics, packaging, and printing machinery.