MDD090A-N-020-N2L-130PB1
MDD Synchronous Motors
The MDD090A-N-020-N2L-130PB1 from Bosch Rexroth Indramat features a size 090 motor and a 130 mm centering diameter. Part of the MDD Synchronous Motors series, it delivers 3.7 Nm standstill torque and a 6.5 Nm blocking brake. This motor includes digital servo feedback and a keyway shaft.
It runs at 2000 min⁻¹ and connects via a side B connector. The housing is standard and motor length code is A. Balancing is standard.
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
6.5 Nm
Centering Diameter
130 mm
Housing
Standard
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
Side B
Connection Type
Connector
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
How does digital servo feedback (DSF) influence commissioning and homing?
DSF provides high-resolution commutation/position data and stores motor parameters, so the drive recognizes the motor without manual phasing. You can order single-turn or multiturn DSF; multiturn simplifies absolute homing.
What protection class should I expect with/without a shaft seal, and what does that mean in practice?
With a shaft seal, MDD motors achieve IP65 at the housing connections; without a seal the shaft area is only IP50. Avoid cleaning methods that defeat sealing (e.g., steam) and verify cable glands to maintain the rating.
Which drive controllers are typically paired with MDD motors, and what modes will I get?
They’re commonly run on DIAX/DDS or DKC families, offering torque, speed, and position control (SERCOS enabled). This provides plug-and-play scaling and diagnostics with Rexroth ecosystems.
Can I attach belt pulleys or helical pinions directly to the shaft?
Yes direct attachment is supported, but respect the specified radial/axial load directions and verify hub fit per DIN key standards. Helical pinions introduce axial thrust; clamp axially and set backlash so the axis doesn’t shift under load.
Where do MDD-series motors see the most use in B2B machinery?
They’re common in packaging lines, printing presses, machine tools, material handling, and robotics where high cyclic dynamics and precision are needed. The series was developed specifically for these industrial automation tasks.
Common Misspellings
MDD-090A-N-020-N2L-130PB1
MDD090A N 020 N2L 130PB1
MDD090A-N-020-N2L-130-PB1
MDD090AN020N2L130PB1
MDD90A-N-020-N2L-130PB1
MDDO90A-N-020-N2L-130PB1
MDDO9OA-N-O2O-N2L-13OPB1
Internal Product Review
Bosch Rexroth Indramat manufactures the MDD090A-N-020-N2L-130PB1 digital AC synchronous servo motor. It offers 2000 min⁻¹ nominal speed, digital servo feedback, and a 6.5 Nm blocking brake. This servo motor is most used in packaging machinery, machine tools, printing presses, robotics, and handling systems for high-accuracy motion and transfer lines.
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