General Specification
- Winding type: YWE
- Hall effect angle: 120 Degree electrical angle
- Radial play: 0.025mm / 460g
- End play: 0.025mm / 400g
- Max. radial force: 75N @ 20mm from the flange
- Max. axial force: 15N
- Insulation class: B
- Dielectric strength: 500VDC for one minute
- Insulation resistance: 100MΩ min., 500VDC
Defination of Part number
57 | ZW | 3 | Y | 54 | A | 20 | G |
Frame size | Brushless dc motor | Phase | Round * | 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 | 57ZW3Y54 A20-G | 57ZW3Y54 A40-G | 57ZW3Y74 A20-G | 57ZW3Y74 A40-G | 57ZW3Y94 A20-G | 57ZW3Y94 A40-G | 57ZW3Y114 A20-G | 57ZW3Y114 A40-G |
|---|---|---|---|---|---|---|---|---|---|
| Number of poles | 4 | ||||||||
| Number of phase | 3 | ||||||||
| Rated voltage | VDC | 24 | |||||||
| Rated speed | RPM | 2000 | 4000 | 2000 | 4000 | 2000 | 4000 | 2000 | 4000 |
| Continuous stall torque | N.m | 0.192 | 0.192 | 0.348 | 0.348 | 0.492 | 0.492 | 0.684 | 0.684 |
| Rated torque | N.m | 0.16 | 0.16 | 0.29 | 0.29 | 0.41 | 0.41 | 0.57 | 0.57 |
| Rated power | W | 33.5 | 67 | 60 | 121 | 86 | 172 | 119 | 238 |
| Peak torque | N.m | 0.48 | 0.48 | 0.87 | 0.87 | 1.23 | 1.23 | 1.71 | 1.71 |
| Peak current | A | 6 | 12 | 10.7 | 21.6 | 15.3 | 30.7 | 21.2 | 42.5 |
| Torque constant | Nm/A | 0.08 | 0.04 | 0.08 | 0.04 | 0.08 | 0.04 | 0.08 | 0.04 |
| Back E.M.F | V/KRPM | 8.57 | 4.8 | 8.57 | 4.8 | 8.57 | 4.8 | 8.57 | 4.8 |
| Rotor inertia | g.c㎡ | 75 | 75 | 119 | 119 | 173 | 173 | 230 | 230 |
| Body length | mm | 82.5 | 102.5 | 122.5 | 142.5 | ||||
| Voltage range | VDC | 12~310 | |||||||
| Speed range | RPM | 2000~4000 | |||||||
| Weight | Kg | 0.4 | 0.4 | 0.8 | 0.8 | 1.1 | 1.1 | 1.3 | 1.3 |
| Model | Units | 57ZW3Y 54A20 | 57ZW3Y 54A40 | 57ZW3Y 54A60 | 57ZW3Y 74A20 | 57ZW3Y 74A40 | 57ZW3Y 74A60 | 57ZW3Y 94A20 | 57ZW3Y 94A40 | 57ZW3Y 114A20 | 57ZW3Y 114A40 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of poles | 4 | ||||||||||
| Number of phase | 3 | ||||||||||
| Rated voltage | VDC | 24 | |||||||||
| Rated speed | RPM | 2000 | 4000 | 6000 | 2000 | 4000 | 6000 | 2000 | 4000 | 2000 | 4000 |
| Continuous stall torque | N.m | 0.19 | 0.19 | 0.19 | 0.384 | 0.384 | 0.384 | 0.54 | 0.54 | 0.72 | 0.72 |
| Rated torque | N.m | 0.16 | 0.16 | 0.16 | 0.32 | 0.32 | 0.32 | 0.45 | 0.45 | 0.6 | 0.6 |
| Rated power | W | 33.5 | 67 | 100.5 | 67 | 134 | 201 | 94 | 188 | 125 | 251 |
| Peak torque | N.m | 0.48 | 0.48 | 0.48 | 0.96 | 0.96 | 0.96 | 1.35 | 1.35 | 1.8 | 1.8 |
| Peak current | A | 5.58 | 11.1 | 16.7 | 11.1 | 22.2 | 33.3 | 15.6 | 31.2 | 20.8 | 41.6 |
| Torque constant | Nm/A | 0.081 | 0.045 | 0.028 | 0.081 | 0.045 | 0.028 | 0.081 | 0.045 | 0.081 | 0.045 |
| Back E.M.F | V/KRPM | 8.57 | 4.8 | 3 | 8.57 | 4.8 | 3 | 8.57 | 4.8 | 8.57 | 4.8 |
| Rotor inertia | g.c㎡ | 60.5 | 60.5 | 60.5 | 113 | 113 | 113 | 181.5 | 181.5 | 242 | 242 |
| Body length | mm | 54 | 54 | 54 | 74 | 74 | 74 | 94 | 94 | 114 | 114 |
| Voltage range | VDC | 12~60 | 12~60 | 12~60 | 24~60 | 24~60 | 24~60 | 24~160 | 24~160 | 24~160 | 24~160 |
| Speed range | RPM | 2000~6000 | |||||||||
| Weight | Kg | 0.5 | 0.5 | 0.5 | 0.75 | 0.75 | 0.75 | 1 | 1 | 1.25 | 1.25 |
Applications for the 57mm Round Brushless DC Motor
The 57ZW3Y’s high speed, low vibration, and compact circular design make it a premier choice for specialized equipment. Key application areas include:
- Pumps & Ventilation: This 57mm round brushless dc motor is ideal for driving air compressors, vacuum pumps, and high-speed fans that require continuous, reliable operation and low noise.
- Medical & Laboratory: Powers medical centrifuges, large-scale analyzers, and surgical tools where the high speed and smooth operation of a 57mm round brushless dc motor are critical.
- Handheld Power Tools: Excellent for high-end electric grinders, polishers, and sanders where high RPM and a compact, easy-to-grip form factor are essential.
Outline
Customization
 |  |  |  | |  |
| 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 57mm round motor (57ZW3Y) over the square (57ZW3S) model?
A: The choice depends on your application. The 57ZW3Y 57mm round brushless dc motor is built for high-speed, low-vibration tasks and fits perfectly in cylindrical housings (like handheld tools). The square (57ZW3S / NEMA 23) model is designed to provide higher torque in a standard industrial mounting profile.
Q: What kind of speeds can this motor achieve?
A: This model is optimized for high RPM. While standard models are rated for 3000-6000 rpm, this 57mm round brushless dc motor can be customized for even higher speeds depending on the winding and voltage.
Q: What type of driver is required for the 57ZW3Y motor?
A: This 57ZW3Y motor requires a compatible BLDC motor driver to operate. We offer a complete range of drivers, and our engineers can help you select the perfect match for this motor’s power and voltage requirements.
Q: What is the expected operational lifespan of this motor?
A: The 57ZW3Y series is built for durability, with an expected lifespan often exceeding 20,000 hours. As a high-quality 57mm round brushless dc motor, its primary lifespan factors are the high-quality bearings, which are selected for durability under rated load conditions.