MDD021A-N-100-N2K-032FB0
MDD Synchronous Motors
Technical Specifications
Balancing
Standard
Holding Brake
Without blocking brake
Centering Diameter
32 mm
Housing
Standard
Encoder
Integrated absolute encoder
Motor Feedback
Resolver feedback
Continuous Torque at Standstill
0.15 Nm
Motor Length Code
A
Motor Size
021
Nominal Speed
10000 min⁻¹
Shaft Seal
Without shaft seal
Shaft Type
Plain shaft
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 the 0.15 Nm continuous torque at standstill affect gearing choices or application sizing?
With only 0.15 Nm at zero speed, you’ll need either gearing or a mechanical advantage to handle higher load starts; direct drive for larger loads may cause premature saturation or overheating. Also, intermittent peak or overload torque must be considered in the drive controller to avoid overcurrent trips.
What is the impact of having a “plain shaft” with 32 mm centering diameter for coupling and mechanical integration?
Plain shafts allow flexible coupling methods (clamping sleeves, hubs) and minimize backlash when properly mounted, but require precise alignment and mounting tolerances to avoid bending moments. The 32 mm centering diameter defines mechanical interface dimensions—shaft collars, gears or pulleys must match or adapt to avoid vibration or misalignment.
How critical is the absence of a shaft seal and holding brake for environmental and safety applications?
Without a shaft seal, the motor is more vulnerable to ingress (dust, coolant, lubricants), which may reduce insulation life or cause failure in harsh environments. The lack of a holding brake means that in power loss or during downtime the load is not held; external mechanical brakes or design safety margins might be needed.
What does “standard balancing” mean in practice for vibration and high-speed use?
Standard balancing implies moderate tolerances for rotor vibration; at 10,000 rpm this may still produce perceptible vibration if the load or coupling is stiff. For very low vibration or extremely precise or optics/SEM applications, higher balancing grades or custom balancing may be required.
What are the practical effects of using this motor in B2B automated assembly vs in semiconductor processing?
In automated assembly (packaging, robotic pick & place), the requirements are for speed, repeatability, and ruggedness; this motor’s 10,000 rpm plus resolver/absolute feedback supports high throughput and accurate positioning. In semiconductor processing which often demands ultra-clean, vibration-free, sometimes vacuum-compatible environments, extra measures (cleanroom-friendly mounting, sealing, perhaps special coatings) may be needed due to absence of shaft seal.
Common Misspellings
MDD-021A-N-100-N2K-032FB0
MDD021A N 100 N2K 032FB0
MDD021A-N-100-N2K-032-FB0
MDD021A-N-100-N2K-032-FBO
MDD021A-N-100-N2K-032FBO
MDD021AN100N2K032FB0
MDD21A-N-100-N2K-032FB0
MDDO21A-N-100-N2K-032FB0
MDDO21A-N-1OO-N2K-O32FBO
Internal Product Review
The MDD021A-N-100-N2K-032FB0 motor by Bosch Rexroth is designed for digital drive controllers and delivers a nominal speed of 10,000 min⁻¹. It features resolver feedback, a 32 mm centering diameter, and a plain shaft without a holding brake or shaft seal. This motor is commonly used in robotics, semiconductor manufacturing, and automated assembly systems.
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