28 Series Economy Planetary Gearbox
Frame Size: Φ28mm or 28x28mm
Gearbox type: straight teeth
Degree of gearbox protection grade: IP54
One stage: ratio 3.7, 5.2; backlash ≤ 1°; efficiency ≥ 85%
Two stage: ratio 19, 27; backlash ≤ 2°; efficiency ≥ 75%
Three stage: ratio 71, 100, 139; backlash ≤ 3°; efficiency ≥ 65%
Compatible with: Nema 11 Stepper Motor, Round 30 Series Brushless DC Motors
- Fast Delievery
- Quality Assurance
Customization Available
Product Introduction
Performance Data
| Stage | 1 stage | 2 stage | 3 stage | |||||
| Ratio | 3.7 | 5.2 | 19 | 27 | 71 | 100 | 139 | |
| Length L1 | mm | 28 | 35.5 | 42.5 | ||||
| Length L2 | mm | 28 | 35.5 | 42.5 | ||||
| Rated load | Nm | 0.5 | 1 | 1.5 | ||||
| Max load | Nm | 1 | 2 | 3 | ||||
| Efficiency η | % | 85% | 75% | 65% | ||||
| Backlash | ° | ≤ 1° | ≤ 2° | ≤3° | ||||
| Weight | KG | 0.3 | 0.35 | 0.4 | ||||
| Running environment temperature | ℃ | -20℃~90℃ （Low temperature customizable) | ||||||
| Nominal Input Speed n1N | rpm | 3000 | ||||||
| Max. input speed n1B | rpm | 5000 | ||||||
| Degree of gearbox protection | IP | 54 | ||||||
| Lubrication | Life grease lubrication | |||||||
| Noise | dB | 50dB/1m | ||||||
| Service Life | hr | ~5000 | ||||||
Mechanical Dimension
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