86PX Series Nema 34 Planetary Gearbox Ratio 5:1 - 100:1 for 86mm Stepper Motor
- Manuals and Documentation:
Specification:
Torque capacity (rated): Stage 1 – 15 N·m, Stage 2 – 30 N·m, Stage 3 – 40 N·m
Torque capacity (maximum): Stage 1 – 25 N·m, Stage 2 – 40 N·m, Stage 3 – 50 N·m
Backlash (arcmin): Stage 1 – ≤18arcmin, Stage 2 – ≤25arcmin, Stage 3 – ≤35arcmin;
Gear ratios:
Stage 1: 5 / 6 / 8 / 10
Stage 2: 15 / 16 / 18 / 20 / 24 / 25 / 30 / 32 / 36 / 40 / 48 / 50 / 60
Stage 3: 64 / 72 / 80 / 96 / 100 / 120 / 144 / 160 / 180 / 200 / 216
Full-load efficiency: Stage 1 – 95%, Stage 2 – 90%, Stage 3 – 85%
Rated input speed: ≤3000 rpm
Noise level: ≤60 dB
Protection rating: IP65
Average service life: ≈20,000 h
Gear material: 20Cr carbon steel
Shaft dimensions: 14 mm input, 16 mm output
Motor interface: Suitable for NEMA 34 stepper motors or 60 mm servo motors
Package Contents:
1 × Planetary gearbox
1 × Key
4 × Mounting screws







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| Physical Specification | |
|---|---|
| Input Shaft Diameter(mm) | 14 / 12.7 |
| Output Shaft Diameter(mm) | 16 / 14 |
| Suit for Motor | Nema 34 Stepper Motor / 60mm Servo Motor |
| Gear Ratio | 5:1 / 10:1 / 20:1 / 50:1 / 100:1 |
| Gearbox Type | Planetary Gearbox |
| Backlash at No-load | ≤18arcmin / ≤25arcmin / ≤35arcmin |
| Shaft Type | Keyway Shaft |
| Frame Size(mm) | 85 x 85 |
| Gearbox Length(mm) | 80 / 85 / 95 / 107 |
| Output Shaft Length(mm) | 30 |
| Product Type | Gearbox |
| Product Series | 86PX Series |
| IP Rating | IP65 |
| Keyway Length | 25 |


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