Product Specifications
| Prod Model: |
Planet Gear |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Type: |
Planetary |
| Manufacturing Method: |
Hobbing & Carburizing & Grinding |
| Toothed Portion Shape: |
Customized |
Product Description
Any
Planetary Gearset has three main components:
The sun gear;
The planet gears and the planet gears' carrier;
The ring gear;
Each of these three components can be the input, the output or can be held stationary. Choosing which piece plays which role determines the gear ratio for the gearset. Let's take a look at a single planetary gearset.
One of the planetary gearsets from our transmission has a ring gear with 72 teeth and a sun gear with 30 teeth. We can get lots of different gear ratios out of this gearset.
Input Output Stationary CalculationGear Ratio
ASun (S) Planet Carrier (C)Ring (R) 1 + R/S 3.4: 1
BPlanet Carrier (C)Ring (R) Sun (S) 1 / (1 + S/R)0.71: 1
CSun (S) Ring (R) Planet Carrier (C)-R/S -2.4: 1
Also, locking any two of the three components together will lock up the whole device at a 1: 1 gear reduction. Notice that the first gear ratio listed above is a reduction -- the output speed is slower than the input speed. The second is an overdrive -- the output speed is faster than the input speed. The last is a reduction again, but the output direction is reversed. There are several other ratios that can be gotten out of this planetary gear set, but these are the ones that are relevant to our automatic transmission.
So this one set of gears can produce all of these different gear ratios without having to engage or disengage any other gears. With two of these gearsets in a row, we can get the four forward gears and one reverse gear our transmission needs. We'll put the two sets of gears together in the next section.
Suzhou Asia Pacific Metal Co., Ltd. Located in Suzhou City, Jiangsu Province, China, is a first rate gear manufacturer and gear supplier now specializing in manufacturing Helical Gears. Our diverse product line includes spur gears, helical gears, double-helical gears, gear shafts, gear rings.
Suzhou Asia Pacific's manufacturing equipment includes 4 sets of German NILES CNC gear grinding machines, 2 sets of Hofler CNC gear grinding machines, and 7 thermal treatment systems. All of our equipment utilizes leading international technology. Our capacity for thermal treatment ranks among the best in Asia. As a truly international gear manufacturer and gear supplier, Suzhou Asia Pacific's product line is extremely broad, and our diverse international clientele includes companies from the USA, Europe, Japan, and Korea.
Suzhou Asia Pacific's stellar quality control system has been awarded with coveted ISO9008: 2000 certification. Our products uphold the highest international standards, including international standard ISO, American standard AGMA, Germany standard DIN, and Japanese standard JIS. The company boasts a team of excellent technical professionals and outstanding managers with the experience to guarantee high-quality production.
Suzhou Asia Pacific strives to keep its customers' needs at the center of all of its policies. The company offers extensive services to the fields of aviation, vessel, metallurgy, coal mining, oil field equipment, engineering machinery, pneumatic machinery and the transmission industry. If you are interested in any of our products, please do not hesitate to contact us. We look forward to future cooperation with you, our valued customer.
