MDD093D-N-040-N2L-110PL0

MDD Synchronous Motors

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The Bosch Rexroth Indramat MDD093D-N-040-N2L-110PL0 is a precision motor for digital drive controllers in the MDD Synchronous Motors series. It delivers a continuous torque at standstill of 24.0 Nm at 4000 min^-1 with digital servo feedback (DSF). It features a 110 mm centering diameter, keyway shaft with shaft seal, a connector left-side connection, size 093 (length code D), and comes without a blocking brake.

Technical Specifications

Balancing
Standard

Holding Brake
Without blocking brake

Centering Diameter
110 mm

Housing
Standard

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 digital servo feedback (DSF) influence controller bandwidth requirements?

DSF typically provides high-resolution position and speed data allowing higher closed-loop bandwidth, but the drive must support the sampling rate and processing. If the controller update rate is too slow, the full DSF potential won’t be realized, leading to lag or oscillation.

What thermal or cooling constraints should be considered during continuous operation?

The motor’s thermal time constant and heat dissipation path limit how much torque/speed it can sustain without overheating (e.g. via surface convection or forced cooling). Operating above continuous curves risks internal winding temperature rise and may force derating or thermal protection shutdown.

What does the continuous torque at standstill imply for low-speed positioning stability?

The 24 Nm standstill torque means the rotor resists external loads even when stationary, giving high holding stiffness in low-speed or “creep” situations. It ensures the system can maintain position without relying solely on closed-loop correction..

How does the 110 mm centering diameter affect mechanical integration?

The centering diameter defines the mounting interface and alignment tolerance, so matching frame hubs or servo mounts must accept 110 mm seats. If the machine base or adapter plate doesn’t provide precise centering, it can introduce misalignment and bearing loads.

What are the implications of using a keyway shaft with a shaft seal?

The keyway allows secure torque transmission (vs. smooth shaft) but introduces stress concentrations, so fillet radii and key tolerances matter. The shaft seal protects internal bearings and windings from contamination but may slightly affect rotational friction when static

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Internal Product Review

The MDD093D-N-040-N2L-110PL0 motor by Bosch Rexroth delivers 24.0 Nm continuous torque and operates at a nominal speed of 4000 min⁻¹. It features digital servo feedback, a 110 mm centering diameter, and a keyway shaft with left-side connector. This motor is used in industries like robotics, CNC machining, and packaging automation.