What is a planetary gearbox?
A planetary gearbox, a marvel of modern mechanics, aligns the input and output shafts to deliver immense torque in a compact design. Known for its torque density, this gearbox optimizes power transfer efficiently.
The bicycle's acceleration hub exemplifies the planet-wheel mechanism brilliantly. Ever pondered how it delivers such power in a compact form? A three-speed hub uses a single-stage planetary gear system, while a five-speed hub employs a two-stage system. Each stage of the planetary gear system includes a reduction state, direct coupling, and an acceleration mode, maximizing adaptability and performance.
In mathematical terms, a planetary gearbox operates with reduction ratios between 3:1 and 10:1. If the ratio is below 3, the sun gear becomes disproportionately large compared to the planet gears. Conversely, above 10, the sun wheel becomes too small, reducing torque efficiency. These ratios are inherently absolute, represented as integer numbers, ensuring precision and reliability.
Though the inventor of the planetary gearbox remains unknown, Leonardo da Vinci functionally described it in 1490. For centuries, this ingenious invention has been integral to technological advancements.
| Model |
2105 |
2205 |
2207 |
2209 |
2210 |
2211 |
2255D |
311R |
| Power |
18.5 |
30 |
18.5/22 |
30 |
37 |
55 |
55 |
55 |
| (KW) |
| Input Speed |
615 |
818 |
635/635 |
635 |
756 |
756 |
652 |
652 |
| (rpm) |
| Speed Ratio |
21.95 |
29.2 |
23.54/23.54 |
23.54 |
27 |
27 |
23.3 |
27 |
| Output Torque |
6310 |
10232 |
6550/7780 |
10600 |
12620 |
18760 |
18760 |
18760 |
| (N.M) |
| Max. Torque |
11400 |
18500 |
11000/13000 |
18000 |
22700 |
33800 |
33800 |
40000 |
| (N.M) |
| Weight |
141 |
180 |
138 |
132 |
205 |
220 |
303 |
352 |
| (KG) |
| Application |
1~1.25mm |
1.5mm |
1mm |
1.5mm |
2~2.5mm |
3mm |
3~3.5mm |
3~4.5mm |
- The housing design facilitates parallel shaft modes and horizontal mounting, enhanced by an adaptable component array, advancing the reducer's configuration versatility like never before.
- Expertly crafted with a noise-absorbable structure, expansive surface area, and a powerful fan, this design excels in temperature and sound management. The precision grinding of cylindrical and bevel gears guarantees both stability and efficient power transmission, ensuring optimal performance.
- Input Mode: Customize your system with options like motor-connected flange and shaft input, tailored to meet your operational demands.
- Output Mode: Personalize your gearbox with a selection of solid shafts with flat key, hollow shafts with flat key, hollow shafts with shrink disk, or hollow/solid shafts featuring involute splines or flange.
Mounting Mode: Choose from foot-mounted, flange-mounted, swing base-mounted, or torque-arm-mounted styles, designed for exceptional versatility and adaptability.
- The planetary gearbox series offers unparalleled flexibility with sizes ranging from 3 to 26, stages from 1 to 4, and ratios between 1.25 and 450. When integrated with the WR, S, and K series, the ratio can dramatically increase, significantly boosting performance.
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| Packaging |
| Size |
800(L) * 800(W) * 800 (H) |
Packed Wear Parts to Delivery |
Transport of Large Trucks to The Seaport |
| Packaging Details |
The normal package is wooden box(Size: L*W*H). If container is too tight,we will use PE film for packing or pack it according to customers special request. |
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