The servo outer rotor motor listed here carries type Servo Motor, speed rpm No-Load Speed: 2550rpm, documented exactly as the manufacturer publishes it. Made by Nanchang Ruiji Trading Co., Ltd (3 years on the platform, typical reply ≤2h). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Servo Outer Rotor Motor
- Model Number: RO100
- Rated Power: 2976W
- Speed Rpm: No-Load Speed: 2550rpm
- Speed(RPM): Rated Speed: 2000rpm
- Rated Speed: 2000rpm
- Warranty: 3 months ~ 1 year
Technical Specifications
| Rated Power | 2976W |
|---|---|
| Speed Rpm | No-Load Speed: 2550rpm |
| Speed(RPM) | Rated Speed: 2000rpm |
| Efficiency | IE 2 |
| Type | Servo Motor |
| Frame | No |
| Motor Mounting Type | Combination Mounting |
| Protect Feature | Explosion-proof |
| Usage | Robot dog, robotic arm, exoskeleton robot, mit cheetah, agv car, high precision equipments |
| Warranty | 3 months ~ 1 year |
| Continuous Current(A) | Rated Current: 20A |
| Model Number | RO100 |
| Torque | Rated Torque: 4Nm |
| Place Of Origin | Jiangxi, China |
| Brand Name | CubeMars |
| Products Name | RO80 |
| Rated Torque(N.M) | 4 |
| Peak Torque(N.M) | 12 |
| Rated Speed | 2000rpm |
| Rated Current(A) | 20 A |
| Peak Current(A) | 62 A |
| Pole-Pairs | 21 |
| Certification | CE Rohs ISO FCC |
| Weight(G) | 525g |
| Application | Cobot Arm |
| Selling Units | Single item |
| Single Package Size | 10X10X9 cm |
| Single Gross Weight | 0.6 kg |
Product Details






RO100 KV55 Standard with Hall/Lite without hall | IN:17mm | |
Motor Size(mm) | Ф113.5*36.2/Ф108.3*28 | |
Control Method | FOC | |
Temperature Range | -20~50℃ | |
Pole Pairs | 21 | |
Phase | 3 | |
Rated Current (ADC) | 20 A | |
Peak current (ADC) | 62 A | |
Rated Torque (Nm) | 4 Nm | |
Peak torque (Nm) | 12 Nm | |
Rated Speed (rpm) | 2000 rpm | |
Rated Voltage (V) | 48V | |
– Rated Voltage: 48V
– Rated Current: 15A
– Rated Torque: 1.3N.m
– Peak Torque: 4N.m
– Rated Speed: 3600rpm
– Motor Weight: 352g
The CubeMars RO series brushless DC outer rotor torque motor is introduced to meet diverse market demands, catering to
applications in exoskeleton robotics, collaborative robotic arms, as well as medical and aviation fields. After a year of market research and meticulous engineering, the RO series has been launched in December 2023.As the new favorite across the entire series, based on the foundation of the R series, the RO series has undergone careful upgrades to address challenges in robot joint design. It successfully tackles issues related to limited internal installation space within joints and increased torque requirements.
CubeMars RO80 Motor Specifications:
• Rated voltage 48V – KV55
• Ultra-low cogging torque
• Increased large hollow through-hole design
• High adaptability, switch the shaft for versatile usage
• Rated torque 4Nm
• Equipped with Hall and temperature sensors
• Mainly used in exoskeleton robots, collaborative robotic arms, as well as in medical and aerospace fields.
CubeMars offers highly customizable motor modules.






















Our Factory
CubeMars integrates R&D, manufacturing, and service. With 16 years of experience, the company upholds the values of "loyal service to customers" and "innovation-driven production."Through years of effort, CubeMars has established a global service network, offering power solutions for a wide range of robotic applications.
Product Application Scenarios:
· Medical Industry: rehabilitation; surgical applications
· Humanoid Robots: upper and lower limb(shoulder, elbow, wrist, hip, knee)
· Industrial Automation: test and measurement; automated warehousing; AGVs; hazardous environment operation; logistics
· Scientific Exploration: planetary exploration; polar research; underwater research; disaster response and rescue
· Driving Systems: automated drive and navigate
· Image and Unmanned System: aerial photography; handheld gimbals; film making; drones






Exhibitions


Production Line


Automated Production Equipment


High-End Test Euipments


Our Warehouse
* "Over 1 million SKUs stored in our state-of-the-art distribution center"


Our Certificates




Q: What's the delivery time for my order?
A: In general, all our products are in stock, we will arrange shipment within 1 to 3 working days after payment by DHL or UPS Express(3 to 7 working days).
Q: What payment terms are available?
A: TT/Paypal/Credit Card
Q: What's your product warranty time?
A: One year free return if product problems.
Q:Do you accept custom service?
A: Yes, of course. Leave me message or contact me online if you have any requirements.


Ordering and Pricing
- Minimum order quantity: 1 piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this servo outer rotor motor?
The standard minimum order quantity is 1 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 3 months ~ 1 year warranty. Spare parts and technical support remain available after the warranty period.
Which certifications does this servo outer rotor motor carry?
It is supplied with CE Rohs ISO FCC documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Nanchang Ruiji Trading Co., Ltd, based in China. The company 3 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Nanchang Ruiji Trading Co., Ltd range on HVACR Nexus.
See more in External Rotor Motors on HVACR Nexus.


















