MDD090A-N-020-N2M-130PR1
MDD Synchronous Motors
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
6.5 Nm
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)
Frequently Asked Questions
Can the MDD090A-N-020-N2M-130PR1 motor be used in B2B machine tools or CNC spindles, and what trade-offs exist?
Yes — its DSF and absolute encoder suit precise positioning in CNC and factory automation, but the 3.7 Nm continuous torque limits direct spindle use to small fixtures or high-gear ratios; for heavier spindles consider larger MDD variants with higher continuous torque or add gearing for required stiffness.
What should maintenance teams inspect periodically on an MDD090A motor used in packaging lines?
Regularly check brake engagement and pad wear, shaft seal condition, connector integrity, and encoder diagnostics; include vibration/balance checks after any mechanical incident since the motor is standard-balanced and may need rebalancing for high-speed runs.
Are there specific EMC or grounding practices required for DSF motors when retrofitting older systems?
Yes — maintain short shielded feedback cable runs, ground the motor housing at a single point, and follow the drive/motor EMC instructions to avoid feedback noise causing commutation errors or servo instability.
What are the thermal and cooling expectations for this MDD090A motor in high-duty applications?
The MDD family is designed for natural convection and surface cooling; for continuous high torque duty or tightly packed cabinets, you should specify forced cooling or derate torque to avoid thermal shutdowns and accelerate bearing life.
How should I size a gearbox or coupling for a motor with 3.7 Nm continuous standstill torque?
Use the continuous 3.7 Nm to size transmission for sustained static loads and apply the motor’s peak/short-term torque (from the datasheet) for dynamic events; include a safety factor (typically 1.5–2×) for duty cycles with frequent starts/stops.
Common Misspellings
MDD-090A-N-020-N2M-130PR1
MDD090A N 020 N2M 130PR1
MDD090A-N-020-N2M-130-PR1
MDD090AN020N2M130PR1
MDD90A-N-020-N2M-130PR1
MDDO90A-N-020-N2M-130PR1
MDDO9OA-N-O2O-N2M-13OPR1
Internal Product Review
The MDD090A-N-020-N2M-130PR1 motor from Bosch Rexroth delivers 3.7 Nm continuous torque and 2000 min⁻¹ nominal speed. It features a 6.5 Nm blocking brake, integrated multiturn absolute encoder, and digital servo feedback. This motor is suitable for applications in packaging machinery, CNC systems, and factory automation.
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