General Specification
- Winding type: YWE
- Hall effect angle: 120 Degree electrical angle
- Radial play: 0.02mm / 460g
- End play: 0.08mm / 450g
- Max. radial force: 220N @ 20mm from the flange
- Max. axial force: 60N
- Insulation class: B
- Dielectric strength: 500VDC for one minute
- Insulation resistance: 100MΩ min., 500VDC
Defination of Part number
86 | ZW | 3 | S | 71 | A | 20 | X |
Frame size | Brushless dc motor | Phase | Squared * | Length | Voltage ** | Speed | External code |
*: This code shows the sharp of the motor. S = Square; Y =Round.
**: This code shows the voltage of the motor, the detail code defination is: A=24V; B=36V; C=48V; D=170V; E=310V; F=325V; 12=12V; 15=15V
Specifications
| Model | Units | 86ZW3S71A20 | 86ZW3S71C40 | 86ZW3S98C20 | 86ZW3S98E60 | 86ZW3S125C20 | 86ZW3S125E60 |
|---|---|---|---|---|---|---|---|
| Number of poles | 4 | ||||||
| Number of phase | 3 | ||||||
| Rated voltage | VDC | 24 | 48 | 48 | 310 | 48 | 310 |
| Rated speed | RPM | 2000 | 4000 | 2000 | 6000 | 2000 | 6000 |
| Continuous stall torque | N.m | 0.84 | 0.84 | 1.68 | 1.68 | 2.52 | 2.2 |
| Rated torque | N.m | 0.7 | 0.7 | 1.4 | 1.4 | 2.1 | 2 |
| Rated power | W | 147 | 293 | 293 | 879 | 440 | 1256 |
| Peak torque | N.m | 2.1 | 2.1 | 4.2 | 4.2 | 6.3 | 6 |
| Peak current | A | 25 | 24 | 24.7 | 10.8 | 36 | 15.4 |
| Torque constant | Nm/A | 0.084 | 0.087 | 0.17 | 0.39 | 0.175 | 0.39 |
| Back E.M.F | V/KRPM | 8.9 | 9.25 | 18 | 41.3 | 18.5 | 41.3 |
| Rotor inertia | Kg.c㎡ | 0.7 | 0.7 | 1.4 | 1.4 | 2.1 | 2.1 |
| Body length | mm | 71 | 71 | 98 | 98 | 125 | 125 |
| Voltage range | VDC | 12~310 | |||||
| Speed Range | RPM | 2000~6000 | |||||
| Weight | Kg | 1.9 | 1.9 | 2.6 | 2.6 | 4 | 4 |
| Model | Units | 86ZW3S 58C10 | 86ZW3S 58C30 | 86ZW3S 71C10 | 86ZW3S 71C30 | 86ZW3S 98C10 | 86ZW3S 98C30 | 86ZW3S 125C10 | 86ZW3S 125C30 |
|---|---|---|---|---|---|---|---|---|---|
| Number of poles | 8 | ||||||||
| Number of phase | 3 | ||||||||
| Rated voltage | VDC | 48 | |||||||
| Rated speed | RPM | 1000 | 3000 | 1000 | 3000 | 1000 | 3000 | 1000 | 3000 |
| Continuous stall torque | N.m | 0.42 | 0.42 | 0.84 | 0.84 | 1.68 | 1.68 | 2.52 | 2.2 |
| Rated torque | N.m | 0.35 | 0.35 | 0.7 | 0.7 | 1.4 | 1.4 | 2.1 | 2.1 |
| Rated power | W | 24.3 | 110 | 73 | 220 | 147 | 440 | 220 | 660 |
| Peak torque | N.m | 1.05 | 1.05 | 2.1 | 2.1 | 4.2 | 4.2 | 6.3 | 6.3 |
| Peak current | A | 2.86 | 8.6 | 5.7 | 17.1 | 11.4 | 34.3 | 17.2 | 51.5 |
| Torque constant | Nm/A | 0.324 | 0.12 | 0.324 | 0.12 | 0.324 | 0.12 | 0.324 | 0.12 |
| Back E.M.F | V/KRPM | 34.28 | 12.63 | 34.28 | 12.63 | 34.28 | 12.63 | 34.28 | 12.63 |
| Rotor inertia | g.c㎡ | 0.4 | 0.4 | 0.8 | 0.8 | 1.6 | 1.6 | 2.4 | 2.4 |
| Body length | mm | 58 | 58 | 71 | 71 | 98 | 98 | 125 | 125 |
| Voltage range | VDC | 12~310 | 12~310 | 12~310 | 12~310 | 12~310 | 12~310 | 24~310 | 24~310 |
| Speed Range | RPM | 1000~3000 | |||||||
| Weight | Kg | 1.5 | 1.5 | 1.9 | 1.9 | 2.6 | 2.6 | 4 | 4 |
In-Depth Applications for the 86mm Brushless DC Motor (NEMA 34)
The 86ZW3S’s industry-standard NEMA 34 mounting and high-torque output make it a superior solution for heavy-duty machinery. Key application areas include:
- Large CNC & Milling: Drives heavy gantries and lead screws on large CNC routers, plasma tables, and milling machines where high speed and torque are required.
- Heavy-Duty Automation: Ideal for high-load actuators, automated guided vehicles (AGVs), and conveyor systems that demand a high-torque 86mm brushless dc motor.
- Robotics & Actuators: Powers large-scale robotic arms and heavy-payload actuators that require a robust 86mm brushless dc motor.
Outline

Customization
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| Shaft | Encoder | Brake | Connector | Pulley | Gearbox |
| Item | Description |
|---|---|
| Shaft Extensions | Motors can be configured with single or double-ended shafts, manufactured to your specific length. |
| Encoder Options | We offer integration with various encoders to meet specific resolution and application needs. |
| Brake Options | Motors can be equipped with an optional brake, available with or without a manual hand release. |
| Cable Harnesses | Custom cable harnesses, with or without connectors, are available upon request. |
| Pulleys & Pinion Gears | Pulleys or pinion gears can be supplied and mounted to your specifications. |
| Gearbox Integration | Most motors can be paired with various gearbox types, including planetary, worm wheel, and parallel shaft gearboxes. |
Frequently Asked Questions (FAQ)
Q: When should I choose this 86mm BLDC motor over a NEMA 34 stepper?
A: Both are excellent for motion control, but for different tasks. A NEMA 34 stepper motor is ideal for high torque at low speeds and for holding a position (holding torque). This 86mm brushless dc motor is designed for high-speed, continuous-duty applications where efficiency (less heat), low noise, and a longer operational lifespan are critical.
Q: What kind of driver does this bldc motor require?
A: This 86ZW3S motor requires a compatible BLDC motor driver. Given its high power and torque, it is often paired with a high-voltage AC-input servo driver, which we can supply. Our engineers can help you select the perfect match.
Q: Is this a “servo” motor?
A: By itself, it is a high-performance bldc motor. When ordered with an optional encoder (see customization), this 86mm brushless dc motor becomes a complete closed-loop servo motor, perfect for precision positioning and velocity control in demanding applications.
Q: What is the expected operational lifespan of this motor?
A: The 86ZW3S series is built for durability, with an expected lifespan often exceeding 20,000 hours. As a high-quality 86mm brushless dc motor, its primary lifespan factors are the heavy-duty bearings, which are selected for durability under high radial and axial loads.






