DC servo motor
Oriental Motor BLV Series brushless DC motors
Low-voltage brushless DC motor and driver speed-control systems at 200 W (24 VDC) and 400 W (48 VDC), running 80 to 4,000 rpm with Modbus RTU over RS-485.
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Key specifications
| Speed (max) | 4,000 rpm |
|---|---|
| Power (max) | 400 W |
| Supply | 24 VDC (200 W) or 48 VDC (400 W) |
| Fieldbus | Modbus RTU (RS-485, up to 31 devices) |
| Speed range | 80-4,000 rpm (50:1) |
Summarised in our own words from ORIENTAL MOTOR CO., LTD.'s published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1
Notes on this data
Brushless DC speed-control motor rather than a positioning servo; recorded as servo-motors/dc-servo as the closest allowed type. Rated torque per model not stated on the page read.
Specify Motion is not affiliated with ORIENTAL MOTOR CO., LTD.. Oriental Motor and BLV Series brushless DC motors are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Oriental Motor BLV Series brushless DC motors replacement and alternative options
Use these supply-network options as a starting point for an engineering check. We can also help source the original Oriental Motor part. Published series figures do not establish an exact-model or drop-in replacement: confirm ratings, fit, interfaces and approvals for your application.
Leadshine low-voltage PMSM servo motors from a 25 mm 33 W unit up to a 130 mm 2 kW unit, wound for 24-60 V DC buses. Fully published data covers torque to 6.4 Nm rated / 16 Nm peak, 17-bit absolute or 2500 ppr incremental encoders and IP65. Designed for ELD2, 2ELD2 and ELD3 drives.
| Published maximum | BLV Series brushless DC motors | ELVM Series Low-Voltage DC Servo Motors |
|---|---|---|
| Rated torque | — | 6.4 Nm |
| Peak torque | — | 16 Nm |
| Speed | 4,000 rpm | 6,000 rpm meets or exceeds |
| Power | 400 W | 2,000 W meets or exceeds |
Low-voltage (24-48 VDC) brushless servo motors with a 12-slot/10-pole low-cogging design, IP65 and a choice of optical or magnetic, incremental or absolute encoders. Matched to Kinco FD1 and OD drives for battery-powered and mobile machines.
| Published maximum | BLV Series brushless DC motors | SMC Series Low-Voltage DC Servo Motors |
|---|---|---|
| Speed | 4,000 rpm | — |
| Power | 400 W | 3,000 W meets or exceeds |
A single 110 mm, 1.2 kW, 48 VDC servo motor giving 4 Nm at 3000 rpm for higher-power low-voltage systems, paired with Kinco FD1 and OD drives.
| Published maximum | BLV Series brushless DC motors | SMH Series Low-Voltage DC Servo Motor … |
|---|---|---|
| Rated torque | — | 4 Nm |
| Speed | 4,000 rpm | — |
| Power | 400 W | 1,200 W meets or exceeds |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Typical applications
What a DC servo motor is
A DC servo motor, in current usage, is usually a low-voltage brushless permanent-magnet motor designed to run from a DC bus, typically 24 to 96 V, under closed-loop servo control. Electronically it works like an AC servo, with a three-phase stator commutated by the drive and encoder or Hall feedback on the shaft. The lower voltage means higher current for the same power, but suits battery-powered and safety-extra-low-voltage machines. Small precision brushless servomotors also fall into this group.
When engineers choose a DC servo motor
Choose a low-voltage DC servo for mobile robots, AGVs, battery equipment, medical devices and compact machines where mains voltage is impractical or unsafe. It allows simple power distribution and safe access. The trade-offs are current and power range: high current means thicker cables and higher losses, so power is typically limited to a few kilowatts. For mains-powered machines above that, an AC servo is usually simpler.
How to specify the Oriental Motor BLV Series brushless DC motors
Send these with your enquiry and an engineer can confirm the right BLV Series brushless DC motors variant or an equivalent:
- Bus voltage (V DC) and battery range
- Continuous and peak torque (Nm)
- Rated and maximum speed (rpm)
- Continuous and peak current (A)
- Feedback type and resolution
- Brake, IP code and frame size (mm)
- Drive and network interface
Common mistakes to avoid
- Sizing at nominal battery voltage without checking the low-charge end
- Undersizing cables for the higher current
- Ignoring regenerative energy into a battery or supply
- Mixing motor and drive feedback types that are not compatible
Oriental Motor BLV Series brushless DC motors: frequently asked questions
Can you help replace Oriental Motor BLV Series brushless DC motors or source the original?
Send the full model code, quantity and required date. Our engineers can check original-part availability and assess suitable alternatives, including Motion Control Products options where appropriate. We confirm compatibility and any changes needed before recommending a replacement.
What is the Oriental Motor BLV Series brushless DC motors?
Low-voltage brushless DC motor and driver speed-control systems at 200 W (24 VDC) and 400 W (48 VDC), running 80 to 4,000 rpm with Modbus RTU over RS-485. Published series figures include speed 4,000 rpm, power 400 W. It is made by ORIENTAL MOTOR CO., LTD.; Specify Motion can help source it or propose an equivalent.
Who makes the Oriental Motor BLV Series brushless DC motors?
The Oriental Motor BLV Series brushless DC motors is made by Oriental Motor (ORIENTAL MOTOR CO., LTD.) and is listed here for engineers comparing options. Specify Motion is not affiliated with ORIENTAL MOTOR CO., LTD.; brand names are used only to identify the product.
What is the speed of the Oriental Motor BLV Series brushless DC motors?
The published series maximum speed is 4,000 rpm. Individual models and sizes in the BLV Series brushless DC motors range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Oriental Motor BLV Series brushless DC motors?
We can assess suitable replacement options. On published figures, Leadshine ELVM Series Low-Voltage DC Servo Motors and Kinco SMC Series Low-Voltage DC Servo Motors are options to assess from our supply network. An engineer confirms the fit against your application before recommending anything.
What is the difference between an AC servo and a DC servo motor?
Both are typically brushless permanent-magnet motors under closed-loop control. The main difference is the supply: AC servos are wound for drives fed from mains voltage, while DC servos are wound for low-voltage DC buses. DC servos suit battery and low-voltage machines; AC servos suit higher-power mains machines.
How does battery voltage affect a DC servo motor?
Motor speed is roughly proportional to available voltage, so as a battery discharges the top speed falls. Size the motor at the lowest working battery voltage. Also allow for regenerative energy during braking, which raises bus voltage and must be absorbed by the battery or a braking circuit.
Further reading: How to select a servo motor · How to select a dc motor · Servo and stepper motors
Other dc servo motor series
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