Gearbox Specifications:
Outer Diameter | 28mm | |
Material | Metal | |
Direction of Rotation | cw&ccw | |
Gear Backlash | ≤2°(Can be customized) | |
Bearing | Porous Bearing | Rolling Bearing |
Axial Endplay | ≤0.1mm | ≤0.1mm |
Radial Load on Output Shaft | ≤120N | ≤170N |
Operating Temperature Range | -30……+100℃ |
Gearbox Stages: | 1 | 2 | 3 | 4 |
Reduction Ratio | 4/6 | 16/24/36 | 64/96/144/216 | 256/384/576/864 |
Max Rated Torque (gf.cm max) | 40000 | 40000 | 40000 | 40000 |
Max Instant Torque (gf.cm max) | 120000 | 120000 | 120000 | 120000 |
Gearbox Efficiency | 90 | 85 | 80 | 75 |
Length | 21.3 | 29.8 | 38.3 | 46.8 |
Motor Specifications:
Motor Specifications | |
Motors (Optional) | Coreless motor, brushless DC motor, stepper motor |
Voltage (Optional) | 3-24V |
Input Speed | ≤15000rpm |
Current | 300mA max |
Performance Data:
Model | Rated Speed | Max Speed | Max Rated Torque | Max Instant Torque | Reduction Ratio | Length(L1) | Overall Length(L) |
rpm | rpm | gf.cm | gf.cm | mm | mm | ||
ZWBMD028028-4 | 1875 | 7500 | 40000 | 120000 | 4 | 21.3 | 58.8 |
ZWBMD028028-6 | 1250 | 5000 | 40000 | 120000 | 6 | ||
ZWBMD028028-16 | 469 | 1875 | 40000 | 120000 | 16 | 29.8 | 67.3 |
ZWBMD028028-24 | 313 | 1250 | 40000 | 120000 | 24 | ||
ZWBMD028028-36 | 208 | 833 | 40000 | 120000 | 36 | ||
ZWBMD028028-64 | 117 | 469 | 40000 | 120000 | 64 | 38.3 | 75.8 |
ZWBMD028028-96 | 78 | 313 | 40000 | 120000 | 96 | ||
ZWBMD028028-144 | 52 | 208 | 40000 | 120000 | 144 | ||
ZWBMD028028-216 | 35 | 139 | 40000 | 120000 | 216 | ||
ZWBMD028028-256 | 29 | 117 | 40000 | 120000 | 256 | 46.8 | 84.3 |
ZWBMD028028-384 | 20 | 78 | 40000 | 120000 | 384 | ||
ZWBMD028028-576 | 13 | 52 | 40000 | 120000 | 576 | ||
ZWBMD028028-864 | 9 | 35 | 40000 | 120000 | 864 | ||
ZWBMD028028-1296 | 6 | 23 | 40000 | 120000 | 1296 |
*The above specifications are subject to change without prior notice. They are for reference only and can be customized as required.
28mm metal planetary gearbox

- Overview
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Gearbox Specifications:
Outer Diameter 28mm Material Metal Direction of Rotation cw&ccw Gear Backlash ≤2°(Can be customized) Bearing Porous Bearing Rolling Bearing Axial Endplay ≤0.1mm ≤0.1mm Radial Load on Output Shaft ≤120N ≤170N Operating Temperature Range -30……+100℃ Gearbox Stages: 1 2 3 4 Reduction Ratio 4/6 16/24/36 64/96/144/216 256/384/576/864 Max Rated Torque (gf.cm max) 40000 40000 40000 40000 Max Instant Torque (gf.cm max) 120000 120000 120000 120000 Gearbox Efficiency 90 85 80 75 Length 21.3 29.8 38.3 46.8 Motor Specifications:
Motor Specifications Motors (Optional) Coreless motor, brushless DC motor, stepper motor Voltage (Optional) 3-24V Input Speed ≤15000rpm Current 300mA max Performance Data:
Model Rated Speed Max Speed Max Rated Torque Max Instant Torque Reduction Ratio Length(L1) Overall Length(L) rpm rpm gf.cm gf.cm mm mm ZWBMD028028-4 1875 7500 40000 120000 4 21.3 58.8 ZWBMD028028-6 1250 5000 40000 120000 6 ZWBMD028028-16 469 1875 40000 120000 16 29.8 67.3 ZWBMD028028-24 313 1250 40000 120000 24 ZWBMD028028-36 208 833 40000 120000 36 ZWBMD028028-64 117 469 40000 120000 64 38.3 75.8 ZWBMD028028-96 78 313 40000 120000 96 ZWBMD028028-144 52 208 40000 120000 144 ZWBMD028028-216 35 139 40000 120000 216 ZWBMD028028-256 29 117 40000 120000 256 46.8 84.3 ZWBMD028028-384 20 78 40000 120000 384 ZWBMD028028-576 13 52 40000 120000 576 ZWBMD028028-864 9 35 40000 120000 864 ZWBMD028028-1296 6 23 40000 120000 1296 *The above specifications are subject to change without prior notice. They are for reference only and can be customized as required.
- Drawing
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28mm metal planetary gearbox
- Application
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ApplicationIt can be widely used in automotive drives, communication equipment, home automation, medical technology, consumer products, intelligent robot drives, etc., and we can provide customization services for customers.Features