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AW86HS Series — NEMA 34 Stepper Motor with Eccentric Gearbox
The AW86HS series pairs Apexwell's NEMA 34 (86mm), 1.8° hybrid stepper motor with a 5GN-K eccentric gearbox, scaling motor holding torque from 2.7 N·m to 11.0 N·m across six body lengths. With 24 available reduction ratios from 3:1 to 500:1 and up to 98.5 N·m of maximum permissible output torque, this series puts Apexwell's largest stepper motor frame on the same 5GN-K gearbox platform used by the AW86BLF and AW86BLW BLDC eccentric-gearmotor lines.
Shared Specifications (all models)
| Parameter | Value |
|---|---|
| Step Angle | 1.8° |
| Step Accuracy | ±5% |
| Lead Wire Configuration | 4-wire (bipolar) or 6-wire (center-tap) |
| Insulation Class | Class B (130°C) |
| Temperature Rise | 50K Max |
| Ambient Temperature | -20°C to +50°C |
| Insulation Resistance | ≥100 MΩ (500 VDC) |
| Dielectric Strength | 500 VAC, 1 minute |
| Gearbox Type | 5GN-K eccentric gearbox |
| Reduction Ratio Range | 3:1 to 500:1 |
Motor Model Comparison
| Model | Body Length | Phase Current | Phase Resistance | Phase Inductance | Holding Torque | Rotor Inertia | Mass |
|---|---|---|---|---|---|---|---|
| AW86HSA68-4004A | 68 mm | 4.0 A | 0.63 Ω | 3.2 mH | 2.7 N·m | 1,574 g·cm² | 1.85 kg |
| AW86HSA80-5004A | 80 mm | 5.0 A | 0.38 Ω | 3.5 mH | 4.5 N·m | 2,120 g·cm² | 2.50 kg |
| AW86HSA98-6004A | 98 mm | 6.0 A | 0.50 Ω | 5.0 mH | 5.2 N·m | 3,110 g·cm² | 3.10 kg |
| AW86HSA118-6004A | 118 mm | 6.0 A | 0.60 Ω | 6.8 mH | 8.5 N·m | 3,970 g·cm² | 3.75 kg |
| AW86HSA128-5004A | 128 mm | 5.0 A | 0.60 Ω | 7.0 mH | 9.0 N·m | 4,540 g·cm² | 4.25 kg |
| AW86HSA158-6004A | 158 mm | 6.0 A | 0.73 Ω | 8.0 mH | 11.0 N·m | 5,820 g·cm² | 5.20 kg |
Wiring
Each AW86HS motor is available in either 4-wire (bipolar) or 6-wire (center-tap) configuration, so it can drop into either a bipolar or unipolar driver setup without a different motor SKU.
5GN-K Eccentric Gearbox Specifications
| Reduction Ratio | 3–15 | 18–500 |
|---|---|---|
| Gearbox Length (L1) | 45 mm | 60 mm |
| Max Torque Moment | 7.4–35.5 N·m | 41.7–98.5 N·m |
24 reduction ratios are available (3, 3.6, 5, 7.5, 9, 10, 12.5, 15, 18, 20, 25, 30, 36, 50, 60, 75, 90, 100, 120, 150, 180, 250, 300, 500:1). Max torque moment plateaus at 98.5 N·m from ratio 60:1 upward — identical to the 5GN-K gearbox used on Apexwell's AW86BLF/AW86BLW BLDC eccentric-gearmotor lines.
Typical Applications
With 24 reduction ratios and gearbox torque up to 98.5 N·m, the AW86HS eccentric-gearmotor series fits heavy-duty conveyor drives, industrial gate and valve actuators, large indexing tables, and packaging and palletizing equipment where open-loop stepper control is sufficient and the widest possible ratio selection matters more than closed-loop feedback.
Why Choose the AW86HS Eccentric Gearmotor
The 24-ratio range on a single 5GN-K gearbox platform lets one motor selection be tuned across a very wide speed/torque window without redesigning the mechanical interface, and the 4-wire/6-wire choice lets it match either driver type. Because the gearbox platform is shared with Apexwell's BLDC eccentric-gearmotor lines, a design can move between stepper and BLDC drive without changing gearbox dimensions or ratio options. 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.
