MDD093D-N-040-N2L-130PL0

MDD Synchronous Motors

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The MDD093D-N-040-N2L-130PL0 digital AC servo motor from Bosch Rexroth Indramat is part of the MDD Synchronous Motors series. It features motor size 093, length code D, a 130 mm centering diameter and a continuous torque at standstill of 24 Nm. The unit operates at a nominal speed of 4000 min⁻¹ with digital servo feedback and includes a shaft seal. Additionally, it comes without a blocking brake and is driven by a shaft with keyway per DIN 6885.

Technical Specifications

Balancing
Standard

Holding Brake
Without blocking brake

Centering Diameter
130 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)

Output Shaft
Shaft With Keyway Per DIN 6885 sh. 1, 8-68 Edition

Frequently Asked Questions

How critical is the shaft keyway (DIN 6885) in high-precision applications?

The keyway ensures torque transmission stability under load but can introduce stress concentrations and alignment errors if not machined precisely. For high-precision axis motion, backlash in the key-seat and key-fit tolerances must be considered and minimized.

What installation environment limits should one consider (temperature, altitude, cooling)?

The MDD series typically assumes ambient operation ~0–45 °C and installation below ~1000 m altitude before derating. Forced ventilation or additional cooling may be required under heavier loads or in enclosed cabinets.

How long of a feedback cable run can you use with its digital feedback without signal degradation?

Bosch recommends keeping the feedback cable length under about 75 meters to maintain integrity of the digital signals and prevent latency or signal distortion.

In B2B/automation system design, how does one choose between MDD motors with and without blocking brakes?

For systems needing safe lock-in position during power loss (e.g. vertical, safety axes), choose versions with holding brakes; for high-speed axes where inertia and dynamic response dominate, brakeless models often yield better performance. Use external brakes only if integration or safety requirements demand them.

What is the practical significance of 24 Nm continuous torque at standstill in motion control?

That torque rating means the motor can hold or generate sustained force when stationary — useful for resisting external loads or gravity without slipping. In dynamic applications, this informs sizing margins to avoid overheating or saturation during high torque demands.

Common Misspellings

Internal Product Review

The MDD093D-N-040-N2L-130PL0 motor by Bosch Rexroth delivers 24.0 Nm continuous torque and operates at 4000 min⁻¹ nominal speed. It features a keyway shaft, digital servo feedback, and a 130 mm centering diameter. This motor is widely used in robotics, packaging machinery, and industrial automation systems.