Planetary Gearbox Gear Box Reduction Servo Gearbox Speed Reducer Epicyclic Motor Transmission Parts Hydraulic Planetary Gearboxes

• Customization: Available
• Application: Motor, Electric Cars, Machinery, Agricultural Machinery
• Hardness: Hardened Tooth Surface
• Model NO.: Planetary Gearbox-LY
• Installation: Horizontal Type
• Layout: Coaxial
• Gear Shape: -
• Step: Four-Step
• Type: Planetary Gear Reducer
• Output Torque: 14nm-2000nm
• Output Speed: 20rpm-6000rpm
• Efficiency: 94%~97%
• Input Speed: 2000rpm-10000rpm
• Ratio: 3-100
• Transport Package: Wooden Case
• Trademark: EPT
• Origin: Zhejiang China
• HS Code: 8483409090
• Production Capacity: 1000 Set/Sets Per Month

Product Description

Planetary Gearbox Gear Box Reduction Servo Gearbox Speed Reducer Epicyclic Motor Transmission parts Hydraulic Planetary Gearboxes

Product Description

Advantages of Planetary Gearboxes:

1. High Torque Density and Compactness: This is one of their most compelling advantages. By distributing the load across multiple planet gears, a planetary gearbox can transmit significantly more torque than a conventional gearbox of the same size. This results in a very high power-to-weight ratio, allowing for powerful performance in a compact and lightweight package. This is crucial where space is limited.
2. High Efficiency: Planetary gearboxes generally exhibit high transmission efficiency, often reaching 95% to 98% per stage. The multiple tooth contacts and balanced load distribution minimize energy loss due to friction, leading to more power being transferred from input to output.
3. Coaxial Input and Output: In many planetary gearbox configurations, the input and output shafts are coaxial (aligned along the same axis). This simplifies machine design and integration, especially in applications where a straight-line power flow is desired.
4. Excellent Load Distribution: The load is shared among multiple planet gears. This load sharing capability not only allows for higher torque transmission but also reduces stress on individual gear teeth, leading to increased durability, longer lifespan, and better shock load resistance compared to traditional gearboxes where the load is concentrated on fewer teeth.
5. Smooth and Quiet Operation: The multiple points of contact and the inherent balancing of forces within a planetary gear set contribute to smoother operation with less vibration and noise compared to other gear types. This is particularly beneficial in precision applications and environments sensitive to noise.
6. Versatile Gear Ratios: Planetary gearboxes can achieve a wide range of reduction ratios in a single stage, and even higher ratios by stacking multiple planetary stages (multi-stage planetary gearboxes). This versatility allows for fine-tuning speed and torque requirements for various applications.
7. Low Backlash (for Precision Applications): While not inherent in all planetary gearboxes, high-precision planetary gearboxes are designed with minimal backlash (the amount of free play between meshing teeth). This makes them ideal for applications requiring very accurate positioning and motion control.

Applications of Planetary Gearboxes:

Due to their unique combination of advantages, planetary gearboxes are found in a vast array of demanding and precision applications across many industries:

1. Automotive Industry:
   • Automatic Transmissions: Planetary gearsets are a cornerstone of automatic transmissions, enabling multiple gear ratios and smooth shifting.
   • Electric Vehicle (EV) Drivetrains: For efficient speed reduction and torque multiplication from electric motors to wheels.
   • Wheel Hub Drives: In heavy-duty vehicles for compact power transmission to the wheels.
2. Robotics and Automation:
   • Industrial Robots: For precise and high-torque joint movements in robotic arms, enabling accurate positioning and heavy lifting.
   • CNC Machines: Providing accurate and powerful axis drives for cutting tools.
   • Automated Guided Vehicles (AGVs): In wheel drives for compact and efficient motion.
3. Renewable Energy:
   • Wind Turbines: Crucial for stepping up the relatively slow rotation of the turbine blades to the high speeds required by the generator for electricity production.
   • Solar Trackers: For precise and robust rotation of solar panels to optimize sun exposure.
4. Heavy Industry and Mining:
   • Excavators and Earthmovers: In swing drives, track drives, and final drives for their high torque capacity and durability.
   • Conveyor Systems: For reliable and powerful movement of heavy materials.
   • Mining Equipment: Used in large-scale machinery like bucket wheel excavators, crushers, and drilling rigs.
5. Aerospace and Defense:
   • Aircraft Actuators: In landing gear, flap, and control surface mechanisms, where high power density and reliability are critical.
   • Missile Launchers and Radar Systems: For precise aiming and tracking.
6. Medical Devices:
   • CT Scanners and MRI Machines: For precise rotational movements of imaging components.
   • Surgical Robots: Requiring compact, precise, and high-torque drives.
7. Power Tools:
   • Cordless Drills and Screwdrivers: Providing significant torque multiplication in a small package.
8. Printing and Packaging Machinery: For accurate and synchronized motion control in complex automation lines.
9. Marine Applications: In winches, propulsion systems, and steering gears for vessels.

Planetary Gearboxes is an old mechanics fundamental that is still being used for new leading innovative technology like 3D printing, and new methods of transport. The planetary gearbox is one in which the output and input shafts are aligned. Its basic function is to transfer the maximum amount of torque with the least amount of space. The gear system consists of a reduction state, an acceleration mode, and coupling. No one knows who invented the planetary gearbox, but it has been in use since the 15th century. The planetary gear gets its name from the way it looks while it functions. There is a sun gear in the middle attached to ring gears. As the sun gear rotates, it also moves the ring gears. The sun gears are called input shaft, whereas the carrier and ring gears are called output.

The planetary gearbox works in the ratios from 1.5:1 to 12000:1. In a 3:1 system, there are three ring gears and one sun gear and is called a one-stage planetary gearbox. In ratios of above 5:1, a two-stage planetary gearbox is used. In a 3:1 system, the sun gear is very big, compared to the ring gear, and in the 10:1 system, the sun gear is much smaller than the ring gears. The ratios are in absolute integers. The planetary gearbox system is very precisely placed together, but it still creates friction due to the moving parts inside - sun gear and ring gear. These need lubrication from time to time from oil, gel, or grease. This requirement is present in most moving mechanical machines.

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There are many showcased benefits of using a gearbox like- three-fold torque compared to the normal gearbox, absolute ratios, low inertia, high efficiency, closed system, etc. The planetary gearbox has its applications in many places. It can be used to increase torque in a robot, to reduce speed in printing press rollers, for positioning, and in packaging machines to name a few.
Buying a gearbox depends on the planned use of the gearbox. There are a certain number of things to keep in mind like - torque, backlash, ratio, corrosion, resistance, noise level, delivery time, price, and availability. There might be other requirements that are different for each buyer.
A planetary gearbox is a medieval tool reincarnated in modern form. That itself says a lot about the usefulness and application of the device. It's an efficient device for the work it performs and has stood the test of time, without getting obsolete.

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