MDD025A-N-100-N2K-040MF0
MDD Synchronous Motors
The MDD025A-N-100-N2K-040MF0 is a motor for digital drive controllers manufactured by Bosch Rexroth Indramat. Part of the MDD Synchronous Motors series, it delivers a continuous torque at standstill of 0.33 Nm at a nominal speed of 10000 min⁻¹. The standard housing and balancing include an integrated absolute encoder with resolver feedback. A 40 mm centering diameter, keyway shaft and right-side cable connection ensure easy installation without a blocking brake or shaft seal.
Technical Specifications
Balancing
Standard
Holding Brake
Without blocking brake
Centering Diameter
40 mm
Housing
Standard
Encoder
Integrated absolute encoder
Motor Feedback
Resolver feedback
Continuous Torque at Standstill
0.33 Nm
Motor Length Code
A
Motor Size
025
Nominal Speed
10000 min⁻¹
Shaft Seal
Without shaft seal
Shaft Type
keyway
Connection Direction
Right
Connection Type
Connecting cable with coupling unit
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
How does “right” connection direction influence cabinet and cable routing?
Power/feedback exits to the right relative to the motor orientation, so plan cable trays and bend radii on that side to maintain EMC and strain relief. Order cables with appropriate lengths and coupling unit orientation for the selected exit.
With no holding brake, what should I consider for vertical or safety-related axes?
Provide an external holding device (mechanical brake or counterbalance); the integrated brake option on related variants is not intended for emergency-stop dynamic braking. Size the external brake for static load and include safe torque off (STO) at the drive.
Does the lack of a shaft seal limit environments like packaging washdown or semiconductor tools?
Yes, without a seal, ingress protection against fine dust or liquids depends on the machine enclosure; avoid direct spray and vacuum-dust exposure. Use labyrinths or external sealing if contaminants are present.
What drive/controller compatibility should I confirm for this MDD series motor?
Select Rexroth digital drives that accept resolver feedback and the absolute pulse interface (e.g., DDS/DDC families) or verify third-party drives support resolver + absolute emulation. Mismatch leads to loss of absolute position and degraded commutation.
For high-speed packaging or pick-and-place, what are the practical limits at 10,000 min⁻¹?
Use the motor’s torque-speed curve to ensure required torque at operating speed; continuous standstill torque doesn’t directly translate at 10k rpm due to thermal and voltage limits. Balance couplings and minimize overhung load to keep vibration within spec.
Common Misspellings
MDD-025A-N-100-N2K-040MF0
MDD025A N 100 N2K 040MF0
MDD025A-N-100-N2K-040-MF0
MDD025A-N-100-N2K-040-MFO
MDD025A-N-100-N2K-040MFO
MDD025AN100N2K040MF0
MDD25A-N-100-N2K-040MF0
MDDO25A-N-100-N2K-040MF0
MDDO25A-N-1OO-N2K-O4OMFO
Internal Product Review
The MDD025A-N-100-N2K-040MF0 motor from Bosch Rexroth offers a centering diameter of 40 mm, resolver feedback, 0.33 Nm continuous torque, and a 10,000 min⁻¹ nominal speed. It includes an integrated absolute encoder, right connection direction, and a keyway shaft. This motor is commonly applied in packaging lines, robotics, and semiconductor automation.
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