Brushless DC motors
Compact, light, quiet

Product features
ASPINA supplies small and efficient brushless DC motors, offering a choice of both inner rotor and outer rotor motors to suit your requirements.
Inner rotor motors
Featuring lower moment of inertia and superior stopping performance due to the rotating structure being located close to the centerline, this type of motor is well-suited to high-speed or variable-speed fan drive applications.
The range includes both low-voltage (DC24V) and high-voltage (DC100/200V) models, with the latter in particular offering small size and high efficiency. Along with standalone motors, ASPINA also supplies models that incorporate a sirocco or turbo fan.
Outer rotor motors
Featuring flat and slim designs that deliver high torque relative to their size as well as excellent speed stability when running at constant speed, this type of motor is well-suited to applications that demand precise speed and products where space is an important factor. Examples include mechanical systems in which gear cutters or gears and pulleys are press-fitted to the motor shaft.
Product range
SDR-3434 series
SDR-42310 series
SDR-6038 series
Series | Size (mm) | Model | Length (mm) | Rated speed (r/min) | Torque (mN·m) |
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Inner rotor | Φ36 | SDR-3434-001 | 66.1 | 10,500 | 0 to 30 |
Inner rotor | Φ36 | SDR-3434-002 | 66.1 | 10,500 | 0 to 30 |
Inner rotor | Φ36 | SDR-3434-004 | 66.1 | 10,500 | 0 to 30 |
Inner rotor | □42 | SDR-42310-001 | 45.5 | 3,000 | 30 to 100 |
Inner rotor | □42 | SDR-42310-002 | 45.5 | 3,000 | 30 to 100 |
Inner rotor | □60 | SDR-6038-001 | 55.2 | 3,100 | 100 to 200 |
Inner rotor | □60 | SDR-6038-002 | 55.2 | 3,100 | 100 to 200 |
DR-35314
DR-55310, DR-6236, DR-7538, DR-7638, DR-82316, DR-8738, DR-8238
Series | Size (mm) | Model | Length (mm) | Rated speed (r/min) | Torque (mN·m) |
---|---|---|---|---|---|
Outer rotor | Φ35 | DR-35314 | 46.0 | 3,200 | 50 to 300 |
Outer rotor | Φ55 | DR-55310 | 32.74 | 3,000 | 0 to 60 |
Outer rotor | Φ63 | DR-6236 | 43.0 | 1,800 | 5 to 15 |
Outer rotor | Φ75 | DR-7538 | 34.05 | 3,100 | 0 to 10 |
Outer rotor | Φ76 | DR-7638 | 43.0 | 1,800 | 15 to 25 |
Outer rotor | Φ82 | DR-82316 | 27.0 | 2,000 | 15 to 23 |
Outer rotor | Φ87 | DR-8738 | 60.0 | 1,800 | 25 to 41 |
Outer rotor | Φ82 | DR-8238 | 60.0 | 1,400 | 41 to 51 |
DR-6638, DR-738,
DR-7738
DR-8538(Low), DR-8538-6,
DR-8538-8, DR-8538-12
DRA-8538, DR-8838,
DR-9538, DR-9538(Thin)
LA052-040, LA052-080, LA052-110
Series | Size (mm) | Model | Length (mm) | Rated speed (r/min) | Torque (mN·m) |
---|---|---|---|---|---|
Inner rotor | Φ68 | DR-6638 | 36.6 | 4,950 | 0 to 40 |
Inner rotor | Φ68 | 36.6 | 1,500 | 0 to 80 | |
Inner rotor | Φ79 | DR-738 | 35.8 | 6,000 | 20 to 50 |
Inner rotor | Φ79 | DR-7738 | 39.1 | 6,000 | 40 to 100 |
Inner rotor | Φ88.2 | DR-8538(Low) | 39.2 | 6,300 | 60 to 100 |
Inner rotor | Φ88.2 | DR-8538-6 | 35.8 | 6,500 | 60 to 100 |
Inner rotor | Φ88.2 | DR-8538-8 | 39.2 | 6,500 | 70 to 100 |
Inner rotor | Φ88.2 | DR-8538-12 | 45.8 | 5,330 | 80 to 300 |
Inner rotor | Φ88.2 | DRA-8538 | 55.0 | 1,500 | 40 to 150 |
Inner rotor | Φ93 | DR-8838 | 39.0 | 1,800 | 140 to 320 |
Inner rotor | Φ97.4 | DR-9538 | 57.6 | 850 | 240 to 420 |
Inner rotor | Φ97.4 | DR-9538(Thin) | 51.6 | 2,000 | 240 to 300 |
Inner rotor | □54 | LA052-040 | 69.6 | 3,000 | 10 to 130 |
Inner rotor | □54 | LA052-080 | 69.6 | 3,000 | 130 to 260 |
Inner rotor | □54 | LA052-110 | 89.6 | 3,000 | 260 to 360 |
Customization
ASPINA drive systems and precision motors can be customized in a myriad of different ways, ranging from changes to the shaft configuration or motor mounts to the control circuit and software or fans, gears, and other power transmission mechanisms.
- Shaft (Changes in shaft length, helical gears, knurling, keying, D cutting, pulleys, and hollow shafts)
- Mount (Plates, brackets, mount dampers, mounting holes)
- Control circuit
- Geared motors
- Blower and fan motors and more...






ASPINA's engineering capabilities
- Technology and expertise built up over more than 50 years as a developer and manufacturer of motors, precision equipment and electronic devices
- Our mechanical, electrical, and software design engineers have experience in a wide range of development work, extending from components such as motors to end-user products
- All of the sales companies in our global network are staffed with skilled engineers
- Quality management systems certified for industries with stringent quality and safety requirements such as automotive and medical
- In-house manufacturing adaptable to changing demand and global distribution network
Proven performance
- Total number of drive systems and motor models: More than 8,000
- Percentage of drive systems and motors that are customized: More than 95%
- ASPINA products have been chosen by numerous market-leading companies in a range of industries, both in consumer and enterprise applications
- ASPINA products are supplied to major automotive manufacturers all around the world and recognized in the automotive industry
- Total number of registered customers: More than 2,000
Why ASPINA? - message from management
Dear Future Customers & Partners,
We envision a world where every individual experiences a sense of "hope" and "comfort." We understand that you, with your admirable ideals, are striving to overcome challenges to make this vision a reality.
Over our 100-year history, we have consistently prioritized understanding our customers' needs, offering solutions that go beyond expectations. This customer-centric approach has resulted in many forming lasting partnerships with us. We believe that our proactive mindset enables us to provide significant added value.
We will continue to offer innovative "movement" solutions from fresh perspectives. Our aim is to make even greater contributions on a global scale, striving to achieve our hopes for tomorrow and create a comfortable and secure future for everyone.
If you're seeking consultation for your business challenges or interested in exploring our products and services, please don't hesitate to reach out to us.
Wishing you ongoing success and growth in partnership with us.
Yukihiro Kaneko
Group CEO
Case studies
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Automation
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Robotics
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Delivery robot
LiDAR: smaller in size, larger in business with ASPINA motors
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Life environment
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Kitchen equipment
More than just a change of motor. Other challenges overcome to achieve further reductions in size.
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Life environment
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Refrigerated showcase
Stalled project to develop more energy efficient model restarted by proposal from ASPINA
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Columns
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Automation
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Health & wellness
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Life environment
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Automotive
What is a brushless DC motor?
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Automation
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Health & wellness
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Life environment
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Automotive
Advantages of brushless DC motors: How they differ from brushed DC motors
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Automation
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Health & wellness
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Life environment
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Automotive
Do brushless DC motors require a drive circuit? – Controlling brushless DC motors
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