MDD093D-N-040-N2M-130PL1

MDD Synchronous Motors

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The MDD093D-N-040-N2M-130PL1 is a motor manufactured by Bosch Rexroth Indramat. Part of the MDD Synchronous Motors series, it features an integrated multiturn encoder. It delivers 24.0 Nm continuous torque at standstill and has an 11 Nm holding brake. The motor has a 130 mm centering diameter and a sealed keyway shaft.

Technical Specifications

Balancing
Standard

Holding Brake
With blocking brake

Holding Brake Torque
11 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
Left

Connection Type
Connector

Product Type
Motor for digital drive controllers

Shaft End
Standard (without side B shaft end)

Frequently Asked Questions

How does the 11 Nm blocking (holding) brake influence startup or emergency stop behavior?

The brake can hold the load when unpowered or during fault conditions, but when releasing/engaging it adds delay and transient torque pulses—your drive must ramp gently to prevent jerks or overshoots. Also, the brake power consumption and heat need to be accounted for in machine safety design.

What mechanical tolerances are critical given the 130 mm centering diameter?

The 130 mm centering diameter demands precise mounting surfaces (low runout, flatness) to avoid bearing loads or vibration; misalignment will amplify stress on coupling and shaft. Use a precision hub and alignment method to preserve concentricity, especially at high rpm.

How does the integrated multiturn absolute encoder affect system recovery after power loss?

Because it remembers the absolute position over multiple revolutions, the system can resume exact angular referencing after power cycle without homing routines. But you still must ensure no mechanical slip or backlash occurred while powered down, or the physical position may drift.

What are the implications of using a keyway shaft with shaft seal in high-speed operation?

A keyway introduces stress concentrators and slight imbalance, so dynamic balancing is essential to avoid vibration. The shaft seal helps guard against contamination but also adds drag and heat—ensure the seal is rated for your rpm and environment.

In a CNC machine axis, how does this motor’s inertia coupling need to be considered?

Matching or “inertia ratio” between motor rotor and load matters: if load inertia is much higher, responsiveness suffers; if too low, overcontrol or vibration may occur. Use a coupling or mechanical transmission to bring the effective inertia into an acceptable ratio (often between 1:3 and 3:1).

Common Misspellings

Internal Product Review

The MDD093D-N-040-N2M-130PL1 motor from Bosch Rexroth delivers 24.0 Nm continuous torque at standstill with a nominal speed of 4000 rpm. It includes a blocking brake 11 Nm, digital servo feedback, and an integrated multiturn absolute encoder. This motor is suitable for use in CNC machinery, robotics, and packaging automation.