English
A Planetary Gearbox, also known as an epicyclic gearbox, is a gear system consisting of a central sun gear, planet gears, a ring gear, and a carrier. This compact and efficient design is widely used in various industries for its high torque density, precision, and durability. It is ideal for applications requiring high reduction ratios in a limited space, such as robotics, automotive transmissions, industrial machinery, and renewable energy systems.
Our planetary gearboxes are engineered to meet rigorous industrial standards. Below is a detailed table of product parameters for different models.
| Model | Ratio Range | Rated Torque (Nm) | Max Torque (Nm) | Backlash (arcmin) | Efficiency (%) | Weight (kg) |
|---|---|---|---|---|---|---|
| PG-100 | 3:1 to 100:1 | 50 | 100 | <5 | 96 | 1.2 |
| PG-200 | 5:1 to 200:1 | 150 | 300 | <4 | 97 | 3.5 |
| PG-300 | 10:1 to 300:1 | 500 | 1000 | <3 | 97 | 8.0 |
| PG-400 | 20:1 to 400:1 | 1000 | 2000 | <2 | 96 | 15.0 |
Planetary gearboxes are utilized in numerous sectors due to their reliability and performance. Common applications include:
Compared to traditional gear systems like spur or helical gearboxes, planetary gearboxes offer several benefits:
Q: What is the main advantage of a planetary gearbox?
A: The primary advantage is its high torque density and compact design, allowing it to deliver significant power in a small space, which is essential for applications with size constraints.
Q: How do I select the right planetary gearbox for my application?
A: Consider factors such as required torque, speed, reduction ratio, backlash tolerance, operating environment (e.g., temperature, humidity), and mounting configuration. Our technical team can assist with custom solutions based on your specifications.
Q: What maintenance does a planetary gearbox require?
A: Regular maintenance includes lubrication checks, typically every 1,000 to 2,000 operating hours, depending on usage. Use recommended lubricants and inspect for wear or damage to gears and bearings to ensure longevity.
Q: Can planetary gearboxes be used in high-speed applications?
A: Yes, but it depends on the model and design. Our PG series supports input speeds up to 5,000 RPM for certain ratios. Always refer to the product specifications for maximum speed ratings to avoid overheating or failure.
Q: What materials are used in your planetary gearboxes?
A: We use high-quality materials such as case-hardened steel for gears, precision bearings, and aluminum or cast iron for housings, ensuring durability and resistance to wear and corrosion.
Q: Are custom ratios available for planetary gearboxes?
A: Absolutely. We offer custom engineering services to provide specific reduction ratios, mounting options, and performance characteristics tailored to your unique application needs.
Q: How does backlash affect performance?
A: Backlash refers to the slight movement between gears when direction changes. Lower backlash (measured in arcminutes) provides higher precision and is crucial for applications like robotics and CNC machinery where accuracy is paramount.
Q: What is the typical lifespan of a planetary gearbox?
A: With proper maintenance and within rated operating conditions, our planetary gearboxes can last over 20,000 hours. Lifespan varies based on load, speed, and environmental factors.
Q: Can I use a planetary gearbox in harsh environments?
A: Yes, we offer models with sealed housings and corrosion-resistant coatings suitable for harsh conditions, including high temperatures, dust, and moisture. Specify your environment during selection.
Q: How do planetary gearboxes compare in cost to other types?
A: Planetary gearboxes are generally more expensive upfront due to their complex design and higher performance, but they offer better value through increased efficiency, durability, and space savings, reducing long-term costs.
