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AW57BLY Series — 57mm BLDC Motor with Precision Planetary Gearbox
The AW57BLY series pairs Apexwell's 57mm-diameter, 4-pole brushless DC motor with the same HPR60-L1/L2 precision planetary gearbox used on the AW57BLF and AW60BLF series, scaling rated output power from 17W to 140W across five body lengths. This is the lower-power tier of Apexwell's 57mm precision BLDC planetary-gearmotor platform, sized for lighter loads than the 8-pole AW57BLF.
Shared Motor Specifications (all models)
| Parameter | Value |
|---|---|
| Winding Configuration | Star (Y) |
| Hall Sensor Position | 120° |
| Insulation Class | Class B |
| Ambient Temperature | -20°C to +50°C |
| Insulation Resistance | ≥100 MΩ (500 VDC) |
| Dielectric Strength | 700 VAC, 1 minute |
| Number of Poles | 4 |
| Number of Phases | 3 |
| Nominal Voltage | 24 VDC |
| Rated Speed | 3,000 RPM ±10% |
Motor Model Comparison
| Model | Rated Torque | Rated Current | Output Power | Peak Torque | Peak Current | Body Length | Mass |
|---|---|---|---|---|---|---|---|
| AW57BLY45-230 | 0.055 N·m | 1.2 A | 17 W | 0.165 N·m | 3.6 A | 45 mm | 0.40 kg |
| AW57BLY55-230 | 0.11 N·m | 2.2 A | 35 W | 0.33 N·m | 6.6 A | 55 mm | 0.50 kg |
| AW57BLY75-230 | 0.22 N·m | 4.1 A | 70 W | 0.66 N·m | 12.3 A | 75 mm | 0.72 kg |
| AW57BLY95-230 | 0.33 N·m | 5.9 A | 105 W | 0.99 N·m | 17.7 A | 95 mm | 1.00 kg |
| AW57BLY115-230 | 0.45 N·m | 7.7 A | 140 W | 1.35 N·m | 23.1 A | 115 mm | 1.24 kg |
Torque constant ranges from 0.039 to 0.061 N·m/A; back-EMF constant ranges from 3.91 to 4.68 Vrms/kRPM. Rotor inertia scales from 68 to 268 g·cm² with body length.
Precision Planetary Gearbox — General Parameters
| Parameter | Value |
|---|---|
| Gear Material | Metal |
| Radial Load (at 10mm) | ≤400 N |
| Shaft Axial Load | ≤230 N |
| Backlash | ≤15 arcmin (1-stage) / ≤20 arcmin (2-stage) |
| Noise | ≤55 dB |
| Protection Level | IP54 |
| Life Span | 20,000 hours |
| Working Temperature | -20°C to +150°C |
HPR60-L1/L2 Precision Planetary Gearbox Specifications
| Parameter | 1-Stage | 2-Stage |
|---|---|---|
| Reduction Ratio | 3, 4, 5, 7, 10 | 16, 20, 25, 28, 30, 35, 40, 50, 70, 100 |
| Gearbox Length (L1) | 57 mm | 73 mm |
| Rated Output Torque | 10–28 N·m | 10–32 N·m |
| Transmission Efficiency | 96% | 94% |
| Weight | 700 g | 900 g |
Momentary torque moment is rated at two times the rated output torque across both stages. 15 reduction ratios are available in total (3 to 100:1) — identical to the AW57BLF/AW60BLF gearbox, since all three series share the same HPR60-L1/L2 platform.
Wiring
Each AW57BLY motor exits with a 3-wire star-connected power cable for the U/V/W windings and a separate Hall sensor cable (+5VDC, GND, HU, HV, HW) at a 120° Hall electrical angle for standard 6-step commutation.
Typical Applications
With backlash as tight as ≤15 arcmin and an IP54 protection rating, the AW57BLY precision series fits light robotic joints, small precision index tables, semiconductor and electronics handling equipment, and other positioning tasks where the AW57BLF's power range is more than the application needs.
Why Choose the AW57BLY Precision Gearmotor
Backlash of ≤15–20 arcmin makes this series suitable for applications where positioning repeatability matters more than cost. Because the gearbox platform is shared with the AW57BLF and AW60BLF, a design can move between motor variants without changing gearbox dimensions or ratio options. The IP54 rating and -20°C to +150°C working range extend where the gearbox can be used compared with an open, standard-tolerance planetary unit, and a 20,000-hour rated life supports continuous-duty applications. For applications needing more power at a similar body length, see the AW57BLF series, an 8-pole motor on the same gearbox platform. Custom shaft configurations and encoder feedback are available on request.
We can customize the electrical parameters of the motor and geometric dimensions such as the motor output shaft size according to customer requirements. Accessories including pulleys, eccentric gearboxes, planetary gearboxes and encoders can also be added. For more products and detailed specifications, please download the product catalog from the Download Center.
