Planetary Gear Sets
Custom Made Precision Helical Steel Sun Gear Planetary Gear Set
Planetary Gear Sets
Planetary Gear Sets are gear systems that rotate around their rotating shafts, like fixed-axis gears; their rotating shafts also rotate with the shafts of other gears with the planet carrier.
The rotation around its shafts is “rotation,” and rotation around the shafts of other gears is “revolution,” just like the planets in the solar system.
Compared with general gear transmission, planetary gear transmission has many unique advantages. The most significant feature is that power can be divided when transmitting power, and the input shaft and output shaft are on the same horizontal line. Therefore, planetary gear transmission has been widely used in reducers, speed increases, and communications in various mechanical transmission devices.
Primarily because of its characteristics of “high load and large transmission ratio,” it has been widely used in aircraft and vehicles (cumbersome vehicles). Planetary gears also play an important role in engine torque transmission. Because the engine’s speed and torque characteristics are very different from the road driving needs, the above aspects of the planetary gears can be used for conversion to distribute the engine’s power to the drive wheels properly. The automatic transmissions in automobiles also use these characteristics of planetary gears to obtain different transmission ratios by changing the relative motion relationship of each component through clutches and brakes.
Planetary Gear Sets Details
| Model Number | M3,M4,M5,M8,M12 and etc. |
| Material | Brass, C45 steel, Stainless steel, Copper, POM, Aluminum, Alloy, and so on |
| Surface treatment | Zinc-plated, Nickel plated, Passivation, Oxidation, Anodization, Geomet, Dacromet, Black Oxide, Phosphatizing, Powder Coating, and Electrophoresis |
| Standard | ISO, DIN, ANSI, JIS, BS, and Non-standard. |
| Precision | DIN6,DIN7,DIN8,DIN9. |
| Teeth treatment | Hardened, Milled, or Ground |
| Tolerance | 0.001mm-0.01mm-0.1mm |
| Finish | shot/sandblast, heat treatment, annealing, tempering, polishing, anodizing, zinc-plated |
| Items packing | Plastic bag+Cartons Or Wooden Packing |
| Payment terms | T/T, L/C |
| Production lead time | 20 business days for sample,25 days for the bulk |
| Samples | Sample price range from $2 to $100. sample express request paid by clients |
| Application | 1. Automatic controlling machine 2. Semi-conductor industry 3. General industry machinery 4. Medical equipment 5. Solar energy equipment 6. Machine tool 7. Parking system 8. High-speed rail and aviation transportation equipment, etc. |
Applications
However, due to the planetary gear’s complex structure and working state, its vibration and noise problems are also prominent. It is easy to cause failure phenomena such as tooth fatigue pitting, tooth root cracks, and even tooth or shaft breakage. Which affects the equipment operation accuracy, transmission efficiency, and service life of the equipment.
The simple (single-row) planetary gear mechanism is the basis of the speed change mechanism. Generally, the speed change mechanism of an automatic transmission is composing of two or more three rows of planetary gear mechanisms. The simple planetary gear mechanism includes a sun gear, several planetary gears, and a gear ring. The planetary gear is supportting with a fixed shaft of the planet carrier, allowing the planetary gear to rotate on the supporting shaft. Planetary and adjacent sun gears and ring gears are always in a constant meshing state, usually using helical gear to improve operational stability.
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Specifications
In a simple planetary gear mechanism, the sun gear is located at the center of the planetary gear mechanism. The sun and planet gear often mesh, and the two external gears mesh in opposite rotation directions. Just as the sun is at the center of the solar system, the sun wheel is named for its position. In addition to being able to rotate around the support axis of the planet carrier, the planet gear will also revolve around the central axis of the sun gear under the circumstances of the planet carrier, just like the rotation of the earth and the revolution around the sun. When this happens, it is called a planetary gear mechanism. For example, in the entire planetary gear mechanism, the rotation of the planet gear exists, and the planet carrier is fixed. This method is similar to a parallel shaft transmission called a fixed shaft transmission. The ring gear is an internal gear. It often meshes with the planetary gear—the internal and external gear mesh with the same rotation direction. The quantity of planetary gears depends on the design load of the transmission, and usually, there are three or four; the more the amount, the greater the burden.
A simple planetary gear mechanism is usually called a three-component mechanism, which refers to the sun gear, planet carrier, and ring gear. Suppose these three components determine the relationship between each other. In that case, generally, one of the components needs to be fixed first, then decide who is the active part and select the rotating speed and rotation direction of the active region. Finally, the rotating speed and direction of the passive role are determined.
Packing Shipping Delivery
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How to choose power transmissions parts and industrial products which meet our requirement
| Chains | Sprockets | Pulleys | Timing belt Pulley | V-belt Pulley |
| Sheaves | Coupings | Bush &Hub | Gear& Rack | V-Belt |
| Locking Assembly | Pulley | Gearbox | Reducer | Shaft Collar |
| Rod End Bearing | Clevis | PTO | Chain Guide | Belt Guide |
| Rubber Buffer | Chain Tensioner | PTO Drive Shafts | Universal Joints | Roller Chains |
| Conveyor Chains | V-Belts | Worm Gearbox | Helical Gear | Worm |
| Agricultural Chain | CNC Proces Parts | Casting | Stamping | |
| Powder Metallurgy | CNC Proces Parts | Casting | Stamping |
What Products Do you sell ?
We are a group of factories, give customer one stop solution of power transmission and industrial products. We are in the position to supply wide range of products, including chains, sprockets, v-belt and v-belt pulleys, timing belt and timing belt pulleys, gears, speed reducers, motors, racks, couplings, and many other parts, like locking assembly, taper bushing, Chain guide, shaft collar, torque limiter, cam clutch, universal joint, motor base and motor slide, rod end, clevis, rubber mount, etc. We make special parts according to drawings and/or samples.
How to choose a gearbox which meets our requirement?
You can refer to our catalogue to choose the gearbox or we can help to choose when you provide
the technical information of required output torque, output speed and motor parameter etc.
What information shall we give before placing a purchase order?
a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.
What industries are your gearboxes being used?
Our gearboxes are widely used in the areas of textile, food processing, beverage, chemical industry,
escalator,automatic storage equipment, metallurgy, tabacco, environmental protection, logistics and etc.
What is the producing process?
Production process including raw material cutting, machine processing, grinding, accessories cleaning, assemble, cleaning, stoving, oil coating, cover pressing, testing, package.
How to control the products quality?
Combining advanced equipment and strict management, we provide high standard and quality bearings for our customers all over the world.
What is the transportation?
-If small quantity , we Suggest to send by express, such as DHL,UPS, TNT FEDEX. If large amount, by air or sea shipping.
Can we design packaging?
-Yes. Default is regular packing, and we can make customer's own packing.
Can you provide OEM service?
-Yes, we work on OEM orders. Which means size, quantity, design, packing solution, etc will depend on your requests; and your logo will be customized on our products.
Can you give me discount on Power Transmissions Parts and Industrial parts?
-Yes, of course. Pls. send me your Email, you'll get more
Q: Are You a trading company or a manufacturer?
A: We Are the factory and have our Own trading company
Q: How Can I get an offer?
A: please send US quotation information: drawings, materials, weight, quantity and requirements, we can accept PDF, ISGS, DWG, STEP file format. If you don't have the drawings, please send us the samples, we can also quote you according to your samples.
Q: What is your minimum order size?
A: it is usually 100 pieces, but a low quantity is acceptable under some special circumstances.
Q: Do you provide samples? Is it free or extra?
A: Yes, we can provide samples free of charge, but we don't pay the freight.
Q: What is the lead time for mass production?
A: honestly, it depends on the number of orders. Normally, if you don't need the tools, deposit them after 30 days or so.
Q: What if the parts don't Work?
A: we can guarantee the quality, but if it happens, please contact us immediately, take some photos, we will check the problem and solve it as soon as possible.
Q: What are your terms of payment?
A: payment is less than US $1000,100% in advance. Payment: $1000,50% wire transfer in advance, balance before shipment,Other Terms of payment are negotiable
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