MDD093D-N-040-N2L-130PL2

MDD Synchronous Motors

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The MDD093D-N-040-N2L-130PL2 motor from Bosch Rexroth Indramat is part of the MDD Synchronous Motors series. It features a 130 mm centering diameter, a blocking brake with 22 Nm holding torque, digital servo feedback, and delivers 24.0 Nm continuous torque at standstill. The keyway shaft includes a shaft seal and the motor size is 093. This motor for digital drive controllers uses a connector with left-side connection direction.

Technical Specifications

Balancing
Standard

Holding Brake
With blocking brake

Holding Brake Torque
22 Nm

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)

Frequently Asked Questions

What special considerations come with using motor MDD093D-N-040-N2L-130PL2 from Bosch Rexroth in a servo system?

Because its DSF (digital servo feedback) encodes rotor position internally, the drive must support that protocol and cannot use external incremental encoders without adaptation. Also, the motor is sealed and non-disassemblable in the field, so any repair must go through Bosch Rexroth (cannot simply open and rebuild).

With 24 Nm continuous torque at standstill, how many axis drops or loads can it hold during idle?

That torque is quite high for a servo motor at standstill, so it can resist substantial static loads without drift. But over prolonged idle periods, consider self-heating and wear on bearings or brake friction surfaces under load.

What mounting orientation or alignment tolerances should you respect, given the 130 mm centering diameter?

The motor is rated for installation in any orientation, but you must align precisely to avoid radial or axial forces exceeding bearing limits. The motor’s floating “A” bearing handles radial loads, while the “B” side fixed bearing handles axial loads as per design guidance.

During fast deceleration or faults, how is stopping forced and how does the drive interact with the blocking brake?

In synchronous systems, the DC bus dynamic braking in the drive will short the DC link to brake the motor to standstill even if electronics fail.

How does the balance class “reduced (R)” used for MDD-093 series influence vibration and spindle use?

MDD 093 motors are dynamically balanced to the reduced balance class (class R), which lowers vibration in high-speed or spindle-grade applications.

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Internal Product Review

The MDD093D-N-040-N2L-130PL2 from Bosch Rexroth is ideal for CNC machining, textile automation, and automotive assembly applications. It features a 22 Nm blocking brake, keyway shaft with seal, and digital servo feedback. With 24.0 Nm continuous torque at standstill and 4000 min⁻¹ nominal speed, it ensures accurate motion control.