MDD021B-N-100-N2G-032FA0
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD021B-N-100-N2G-032FA0 from the MDD Synchronous Motors series is a high-performance motor for digital drive controllers designed to meet precision motion requirements. With a compact motor size 021 frame and a motor length code B profile, this unit delivers a continuous shaft torque at standstill of 0.30 Nm while spinning up to 10000 min⁻¹ nominal speed. Engineered with a resolver feedback system and a 32 mm centering diameter, the motor ensures accurate position detection and secure mounting. The standard housing construction balances durability and ease of installation in diverse automation environments.
Optimized for reliability, the motor features a plain shaft and standard (without side B shaft end) configuration that simplify coupling to gearboxes and machine components. The absence of a shaft seal and blocking brake reduces maintenance points and cost, while standard balancing keeps vibration within tight tolerances at high speeds. Connectivity is achieved via a side-mounted connector on Connection Direction Side A, streamlining wiring and minimizing cabinet space. These design choices deliver low inertia and high responsiveness, making the drive unit ideal for dynamic positioning tasks.
Built for seamless integration, the Indramat MDD021B-N-100-N2G-032FA0 motor supports Bosch Rexroth digital drive ecosystems and accelerates commissioning through built-in automatic feedback recognition. Its robust housing and streamlined connector interface ensure long-term operation with minimal downtime. Engineers will appreciate the straightforward mounting, proven thermal stability, and reliable torque performance in demanding industrial applications.
Technical Specifications
Balancing
Standard
Holding Brake
Without blocking brake
Centering Diameter
32 mm
Housing
Standard
Motor Feedback
Resolver feedback
Continuous Torque at Standstill
0.30 Nm
Motor Length Code
B
Motor Size
021
Nominal Speed
10000 min⁻¹
Shaft Seal
Without shaft seal
Shaft Type
Plain shaft
Connection Direction
Side A
Connection Type
Connector
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
What torque-vs-speed behavior can I expect when driving the Bosch Rexroth MDD021B-N-100-N2G-032FA0 motor near its nominal speed?
As speed approaches 10,000 min⁻¹, the available torque drops off from the stall (0.30 Nm) value due to motor back EMF and thermal limits. The controller must ensure that the continuous torque curve (for S1 duty) is not exceeded, or the motor will overheat or saturate.
What are the implications of having a plain shaft and no side-B shaft end in this motor’s mechanical integration?
A plain shaft simplifies coupling via shrink discs or clamping hubs, but without a side B shaft end you lose flexibility in mounting or attaching auxiliary components on that side. It also concentrates all axial and radial loads to the accessible shaft end, so proper shaft load capacity should be verified.
What thermal limitations should I consider when the motor operates continuously at high rpm?
High speed increases winding losses (copper and iron) and friction in bearings, raising internal temperature; without active cooling or sufficient thermal margin, continuous operation near or at 10,000 min⁻¹ may risk thermal overload. The controller or system should monitor winding temperature (if supported) and include cooling or duty-cycle limits.
How does the centering diameter of 32 mm affect mounting precision and stability?
The 32 mm centering diameter provides a rigid reference for mounting, reducing misalignment and allowing precise concentric mounting with flanges. Good centering minimizes run-out and vibration, which is especially important at 10,000 rpm to avoid bearing fatigue.
How should the motor be wired and connected in relation to the drive controller to ensure correct feedback and power delivery?
Use the side-A connector orientation as supplied, ensure correct pin wiring for power, resolver feedback, and ensure proper grounding. Cable length and shielding matter: long or poorly shielded feedback lines can introduce noise or distort signals, affecting position tracking and control stability.
Common Misspellings
MDD-021B-N-100-N2G-032FA0
MDD021B N 100 N2G 032FA0
MDD021B-N-100-N2G-032-FA0
MDD021B-N-100-N2G-032-FAO
MDD021B-N-100-N2G-032FAO
MDD021BN100N2G032FA0
MDD21B-N-100-N2G-032FA0
MDDO21B-N-100-N2G-032FA0
MDDO21B-N-1OO-N2G-O32FAO
Internal Product Review
The Bosch Rexroth Indramat MDD021B-N-100-N2G-032FA0 motor delivers 0.30 Nm continuous torque and operates at up to 10,000 rpm, featuring a 32 mm centering diameter and resolver feedback for precise positioning. Its compact frame and plain shaft design simplify integration into digital drive systems. Widely used in robotics, printing, and packaging industries.
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Repair
We offer a repair service for the MDD021B-N-100-N2G-032FA0.
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