Planetary gearbox is named so due to its resemblance to the solar system. The components of a planetary gearbox include a sun gear, ring gear and planetary gears. The sun gear is the central gear which is fixed in the center, ring gear (annulus ring) which is the outer ring with inward-facing teeth, and the planetary gears which rotate around the sun gears and mesh with both the sun and ring gear.
The sun, ring and planetary gears of a planetary gearbox are constructed of aluminum, stainless steel or brass. The material used varies depending on the manufacturer.
Note: Gears made from steel materials can be noisy when coming into contact with other gears and also make them prone to wear.
Applications of Planetary Gearboxes
Planetary gearboxes are used in applications requiring low backlash, compact size, high efficiency, resistance to shock, and a high torque to weight ratio.
- Slewing Drives
- Lifts
- Cranes
- Machine Tools
- Automotive
Advantages of Planetary Gears
- High power density
- Compact
- Highly efficiency in power transmission
- Greater stability
- Load distribution among planetary gears
Disadvantages of Planetary Gears
- High bearing loads
- Complex design
- Inaccessibility
Jia Cheng manufactures planetary gearboxes that are applied in conveyor drives, winch drives, mixers, swing drives, wheel drives, augers and numerous other types of applications. They were specifically developed for use with state-of-the-art technology, providing tight integration of the motor to the unit. Our precision planetary gearbox provides a number of advantages, such as in servo control applications, good mechanical rigidity, accurate and precise positioning, in operation with low institutional backlash, high efficiency, high input torque, smooth operation, low-noise and other features.
If you are interested in learning more details about planetary gearbox, welcome to visit the website of Jia Cheng and feel free to contact with us.
Article Source: http://www.anaheimautomation.com/manuals/forms/gearbox-guide.php#sthash.jpzn9pEh.dpbs