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MDD090A-N-020-N2M-130PR0

MDD Synchronous Motors

Rated 4.6 stars (5 total reviews)
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1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

The MDD090A-N-020-N2M-130PR0 from Bosch Rexroth Indramat is a motor for digital drive controllers in the MDD Synchronous Motors series. It provides 3.7 Nm continuous torque at standstill and features an integrated absolute encoder with digital servo feedback. The keyway shaft includes a shaft seal and a 130 mm centering diameter, with standard housing, balancing, right connector, and no blocking brake.

Technical Specifications

Balancing
Standard

Holding Brake
Without blocking brake

Centering Diameter
130 mm

Housing
Standard

Encoder
Integrated multiturn absolute encoder

Motor feedback
Digital servo feedback (DSF)

Continuous Torque at Standstill
3.7 Nm

Motor Length Code
A

Motor Size
090

Nominal Speed
2000 min⁻¹

Shaft Seal
With shaft seal

Shaft Type
keyway

Connection Direction
Right

Connection Type
Connector

Product Type
Motor for digital drive controllers

Shaft End
Standard (without side B shaft end)

What are the practical implications of the MDD090A-N-020-N2M-130PR0’s integrated multiturn absolute encoder for closed-loop control?

Because the encoder is multiturn and absolute, the drive recovers exact rotor position after power cycles without needing homing, simplifying safety and commissioning in multi-axis systems. This reduces downtime and prevents drift in position-critical tasks like pick-and-place or print registration.

What mounting or alignment issues are introduced by the 130 mm centering diameter?

A 130 mm centering diameter requires matching machine hub bores or adapter flanges and offers better concentricity for high-speed spindles, but demands tight axial and radial alignment during installation to avoid bearing loads. Use precision dowel pins or shrink-fit adapters to preserve encoder accuracy and reduce vibration.

With a keyway shaft and no blocking brake, what safety and motion-holding strategies should be used?

Because the shaft uses a keyway (mechanical torque transmission) but the motor lacks a blocking brake, implement redundant mechanical brakes or fail-safe clamps at the axis for vertical or safety-critical holds. For purely positional tasks, use drive-integrated torque holding with external mechanical locks for long-term static loads.

How does Digital Servo Feedback (DSF) change drive tuning and cabling compared with analog encoders?

DSF provides higher-bandwidth, noise-immune digital position and velocity signals, allowing more aggressive PID/field-oriented control and simpler cable routing (fewer analog grounding concerns), but requires matching DSF-capable drives and correct connector pinout. Ensure the drive firmware supports the DSF protocol used by the motor to avoid interpolation errors.

How should balancing and connector orientation (right-side connector) influence machine layout and NVH (noise/vibration) planning?

Standard factory balancing reduces runout but machine designers should still validate system natural frequencies and place the right-side connector away from moving harnesses to avoid cable stress and microphonics. If tighter vibration specs are required, request higher balancing grades or dynamic balancing during system integration.

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Internal Product Review

The MDD090A-N-020-N2M-130PR0 motor by Bosch Rexroth features a 130 mm centering diameter, digital servo feedback, and an integrated multiturn absolute encoder. It delivers 3.7 Nm torque at standstill and operates at a nominal speed of 2000 min⁻¹ with a keyway shaft and right-side connector. This motor is ideal for use in robotics, packaging lines, and printing equipment.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MDD090A-N-020-N2M-130PR0.
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