A 10mm micro brushless DC motor offers high power density in a strict form factor. Before designing your housing, use the tool below to verify if standard 10mm BLDC performance limits align with your target torque and speed.
Standard 10mm BLDC motors struggle to exceed 1.5W of continuous mechanical power. However, premium designs (capable of 50k RPM at 1.5 mNm) can push up to 8W if the housing thermal resistance (Rth2) is strictly managed below 40 K/W.
The low inertia of a 10mm rotor excels at high speeds (30,000 to 100,000 RPM). It is ideal for surgical handpieces, LiDAR, and miniature pumps.
Integrating Hall sensors into a 10mm OD consumes valuable stator space, reducing torque by ~15-20%. Sensorless FOC drives are strongly recommended.
When evaluating a 10mm micro BLDC motor, engineers must respect the physics of electromagnetism in micro volumes. The surface area available for heat dissipation is minimal (~470 mm² for a 15mm length motor), making thermal management the primary bottleneck for continuous torque.
| Parameter | Typical Limit | Design Constraint & Industry Benchmarks |
|---|---|---|
| Outer Diameter | 10.0 mm (±0.05) | Strict tolerance for press-fit housings. Stator volume limits magnetic flux. |
| Max Continuous Torque | ~0.8 to 1.74 mNm | Limited by heat dissipation. Premium tier (e.g., Maxon EC 10) achieves up to 1.74 mNm, while standard industrial 10mm motors operate safely at 0.8-1.2 mNm before stator burns. |
| No-Load Speed | 30k - 100k RPM | Dynamic balancing of the rotor is mandatory above 40k RPM to prevent vibration. Typical max continuous speed for premium lines (like Portescap 10ECS) sits around 50k-70k RPM. |
| Thermal Resistance | 35 - 45 K/W (Housing) | Extremely poor relative to larger motors (e.g., Maxon EC 10 specifies 39.8 K/W). Requires metallic mounting brackets acting as heatsinks for sustained high-torque loads. |
If you need more than 1.2 mNm of torque but must stay within a 10mm or 12mm diameter envelope, pairing the 10mm BLDC with a 10mm planetary gearbox multiplies the torque at the expense of speed and length.
Explore Micro Gear MotorsIncreasing the OD from 10mm to 12mm significantly increases the magnetic gap area and stator volume, often doubling the continuous torque capacity while only adding 2mm to your housing size.
Compare with Coreless DesignsSend us your target parameters from the feasibility checker above. Our engineers will review your thermal constraints, driver matching, and mechanical fit at no cost.
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