What is a planetary gearbox?
A planetary gearbox is a gearbox with the input shaft and the output shaft aligned. A planetary gearbox is used to transfer the largest torque in the most compact form (known as torque density).
The bicycle's acceleration hub is a great example of a planet-wheel mechanism: Have you ever wondered how you can get so much power and capabilities in such a little hub? For a three-speed hub, a one-stage planetary gear system is used, for a five-speed hub a 2-stage. Each planet gear system has a reduction state, a direct coupling and an acceleration mode.
In mathematical terms, the smallest reduction ratio is 3: 1, the largest is 10: 1. At a ratio of less than 3, the sun gear becomes too big against the planet gears. At a ratio greater than 10 the sun wheel becomes too small and the torque will drop. The ratios are usually absolute i.e. an integer number.
Whoever invented the planetary gearbox is not known, but was functionally described by Leonardo da Vinci in 1490 and has been used for centuries.
| 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, complemented by a flexible component array that enhances the reducer's configurations, providing adaptability like never before.
- Engineered with a sound-absorbable structure, wide surface area, and a large fan for superior temperature and noise control. Precision grinding of cylindrical and bevel gears ensures unwavering stability and efficient power transmission.
- Input Mode: Options include motor-connected flange and shaft input to suit your operational needs.
- Output Mode: Choose from a solid shaft with flat key, hollow shaft with flat key, hollow shaft with shrink disk, hollow or solid shaft with involute splines, or solid shaft with flange.
Mounting Mode: Available in foot-mounted, flange-mounted, swing base-mounted, and torque-arm-mounted styles, ensuring versatility and adaptability.
- The plantary gearbox series offers flexibility with sizes from 3 to 26, stages ranging from 1 to 4, and ratios from 1.25 to 450. When combined with the WR, S, and K series, the ratio can significantly increase, delivering enhanced 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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