300 Series Planetary Gearbox Replacement Of Bonfiglioli 300L1 300L2 300L3 300L4 300R2 300R3 300R4

The 300 series planetary gearbox is a robust, compact and powerful system designed for heavy-duty applications. Its versatility is impressive, owing to the wide range of mounting, gear layout, output shaft, and motor interface options. The series is available in 20 fine pitch frame sizes, with torque ranges from 1,000 to 1,100,000 Nm.

Interchangeable Planetary Gearbox Models

The 300L series and 300R series planetary gearboxes are designed to be fully interchangeable with Trasmital Bonfiglioli models. Their installation and dimensions strictly adhere to Italian and American manufacturers’ standards, making them perfect substitutes for Brevini ED, ET, EQ, EM, EC, and EL Bonfiglioli 300 series, and Dinamicoil RE, RA series in terms of performance and connection size.

Specifications of Planetary Gearbox

The 300 series planetary gearbox comes with top-tier specifications. With a torque range of 1,000 … 1,100,000 Nm (8,850 … 9,735,820 in-lb) and gear ratios from 3.4 … 5,000, the gearbox can transmit mechanical power of up to 1,050 kW. It is also equipped with a variety of brake options, output forms, and input designs for different application needs.

Flange Mounted Planetary Gearbox Features

The flange-mounted planetary gearbox is characterized by its large diameter, providing more torsional rigidity. It is ideal for applications demanding high accuracy and quick cycles of movement like powered indexing tables. It can also accommodate a wide range of drive belt types with the use of a pulley.

Planetary Gearbox Lubrication

Proper lubrication of the rolling and sliding surfaces inside the compact structure is crucial for the gearbox’s efficiency. The lubrication system in modern gearboxes has been upgraded to a lifetime, built-in form. Grease, oil, or synthetic gel are the most common lubricants in planetary gears.

300 Series Planetary Gearbox Applications

The flange-mounted planetary gearbox is an excellent investment for many power transmission and motion control applications today. Its application spans across construction, medical, and conveyor systems, and automated machinery such as automatic welding equipment, material handling equipment, food processing machines, robots, and contemporary transportation applications.

About Us

We are a reputable manufacturer of planetary gearboxes, including Hydraulic Transmission, Slewing Drive, Cycloidal Gearbox, and more. Our top-quality products are designed to be fully interchangeable with models from Trasmital Bonfiglioli and other leading brands. We are committed to providing high-quality, durable products that meet the exact specifications of our clients.

Why Choose Us?

Our strong blend of sharp minds and modern facilities enables us to provide high-quality planetary gearboxes that are robust, efficient, and require less maintenance. We offer a wide range of specifications at market-leading prices. Explore our product range and make a purchase that will enhance your operations with superior force conveyance.


  1. What is the torque range of the 300 series planetary gearbox?
  2. What are the brake options available for the 300 series planetary gearbox?
  3. What types of applications can the 300 series planetary gearbox be used for?
  4. What are the maintenance requirements for the 300 series planetary gearbox?
  5. How does the flange-mounted design of the 300 series planetary gearbox enhance its performance?