MDD093D-N-040-N2M-110GL0

MDD Synchronous Motors

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The MDD093D-N-040-N2M-110GL0 from Bosch Rexroth Indramat offers a continuous torque at standstill of 24.0 Nm and a centering diameter of 110 mm. As part of the MDD Synchronous Motors, this motor features size 093, a 4000 min⁻¹ nominal speed and a multiturn encoder.

It has a plain shaft with a shaft seal and provides DSF for precise positioning. It lacks a blocking brake and uses a left-side connector.

Technical Specifications

Balancing
Standard

Holding Brake
Without blocking brake

Centering Diameter
110 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
Plain shaft

Connection Direction
Left

Connection Type
Connector

Product Type
Motor for digital drive controllers

Shaft End
Standard (without side B shaft end)

Frequently Asked Questions

Given the nominal speed of 4000 min⁻¹, how do I size the mechanical transmissions (gears, belts)?

At 4000 rpm, the motor’s high speed reduces gear ratio needed to reach typical application speeds, but you must ensure the gearbox or belt can handle the power and dynamics at that speed. High-speed transmission parts must manage centrifugal and dynamic loads; choose components rated above the prospective torque × speed envelope.

What are the implications of having a plain shaft with shaft seal but no blocking brake?

The plain shaft simplifies coupling design, but without a blocking brake the axis cannot be locked when powered off, so you’ll need an external brake or mechanical lock for safety or zero-point holding. The shaft seal helps protect internal bearings against contaminants when interfaces are sealed.

How does the integrated multiturn absolute encoder (digital servo feedback) improve motion control?

The built-in encoder preserves the absolute position over power cycles, eliminating the need for external homing or incremental encoders. This ensures deterministic behavior at startup and reduces wiring complexity by embedding feedback directly in the motor.

What vibration or balancing allowance should I consider for a size-093 synchronous motor in dynamic machines?

The motor is balanced to “standard” class, meaning moderate vibration is acceptable; in very high-speed or high-precision systems, additional balancing or damping may be needed. Check the rotor imbalance limits and apply balancing weights or isolation mounts as needed for your application.

In B2B applications like robotics or CNC, what lifecycle maintenance does this motor require?

Because the motor has no brushes, maintenance is limited to periodic checks of the bearings, connectors, and seals—typically after tens of thousands of hours. However, inspect for encoder drift, abrasion on shaft seals, and connector pin wear during planned service intervals.

Common Misspellings

Internal Product Review

The MDD093D-N-040-N2M-110GL0 motor by Bosch Rexroth features a plain shaft, 110 mm centering diameter, and a multiturn absolute encoder with digital servo feedback. It delivers 24.0 Nm continuous torque at standstill and operates at a nominal speed of 4000 min⁻¹. Commonly used in robotics, CNC machining, and packaging systems.