309L Series Planetary Gearbox
The 309L series planetary gearbox is an inline gearbox. It provides a wide range of choices for many demanding applications, especially where impact loads occur, due to its compact and powerful advantages. Due to the additional accessories available for assembly according to the project, the output shaft or motor interface can be selected. We can provide customers with 18 sizes, and colleagues also support customization, suitable for torques above 1000-140000 Nm. Finding the perfect solution for any drive is not just a desire, users can always safely rely on it.
| Torque range | 1,000 … 1,100,000 Nm (8,850 … 9,735,820 in-lb) |
| Gear ratios | 3.4 … 5,000 |
| Transmissible Mechanical Power | up to 1,050 kW |
| Brake options | Hydraulic brake Hydraulically released parking brake on request Electric brake DC and AC type |
| Output | Foot and flange mounted Output shaft: solid with key, splined, splined hollow, hollow with shrink disc |
| Input | Flanged axial piston hydraulic motors Hydraulic orbit motors IEC and Nema motor adapters Solid input shaft |
| Applicable motors | Piston hydraulic motors Hydraulic orbit motors Electric motors IEC |
Raleted Planetary Gearboxes
You can click on the image to learn about the corresponding related products
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| Planetary Feed Mixer Gearbox | Tracked Vehicle | Winch Drive | Wheeled Vehicle Drive |
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| Slewing Drive | Wind Turbines Drive | Inline Planetary gearbox | Right Angle Planetary gearbox |
Replaceable Planetary Gearbox Models
The 300L series gearbox and 300R series planetary gearboxes can be interchangeable with the following models of Trasmital Bonfiglioli.
The installation and dimensions of the planetary gearboxes are strictly designed according to Italian and American manufacturers, so they are interchangeable with Brevini ED, ET, EQ, EM, EC, and EL Bonfiglioli 300 series, and Dinamicoil RE, RA series. Performance and connection size. They are ideal substitutes for those Italian products.
| 300L 1 | 300L 2 | 300L 3 | 300L 4 | 300R2 | 300R3 | 300R4 |
| 301L 1 | 301L 2 | 301L 3 | 301L 4 | 301R2 | 301R3 | 301R4 |
| 303L 1 | 303L 2 | 303L 3 | 303L 4 | 303R2 | 303R3 | 303R4 |
| 305L 1 | 305L 2 | 305L 3 | 305L 4 | 305R2 | 305R3 | 305R4 |
| 306L 1 | 306L 2 | 306L 3 | 306L 4 | 306R2 | 306R3 | 306R4 |
| 307L 1 | 307L 2 | 307L 3 | 307L 4 | 307R2 | 307R3 | 307R4 |
| 309L 1 | 309L 2 | 309L 3 | 309L 4 | 309R2 | 309R3 | 309R4 |
| 310L 1 | 310L 2 | 310L 3 | 310L 4 | 310R2 | 310R3 | 310R4 |
| 311L 1 | 311L 2 | 311L 3 | 311L 4 | 311R2 | 311R3 | 311R4 |
| 313L 1 | 313L 2 | 313L 3 | 313L 4 | 313R2 | 313R3 | 313R4 |
| 315L 1 | 315L 2 | 315L 3 | 315L 4 | 315R3 | 315R4 | |
| 316L 1 | 316L 2 | 316L 3 | 316L 4 | 316R3 | 316R4 | |
| 317L 1 | 317L 2 | 317L 3 | 317L 4 | 317R3 | 317R4 | |
| 318L 1 | 318L 2 | 318L 3 | 318L 4 | 318R4 | ||
| 319L 1 | 319L 2 | 319L 3 | 319L 4 | 319R4 | ||
| 321L 1 | 321L 2 | 321L 3 | 321L 4 | 321R4 |
How to Lubrication Planetary Gearbox？
There are various methods for lubricating gearboxes, among which the most common are lubricating grease, splash oil, and forced oil.
- Lubricating grease lubrication
This type of lubricant is suitable for low speed operation, but it provides less cooling than oil and is not recommended for continuous operation or heavy load applications even at low speeds. The use of the correct amount of lubricant is crucial for any lubricant, especially grease. Insufficient lubrication can hinder the formation of an appropriate lubrication layer, while excessive lubrication, especially grease, can lead to viscous resistance and power loss.
- Oil splash lubrication
This is typically used for helical, spur, and bevel gearboxes, although it may also be used for planetary gearboxes. This program is also known as an oil bath because it uses an oil filled (or partially filled) reservoir. When gears rotate, they immerse themselves in an oil bath, causing oil to overflow onto other gears and bearings. However, if the gear teeth are completely submerged in water, a situation called “agitation” will occur.
Eddy currents occur when gears or bearings must work harder to “push” the lubricant. Walking along the beach is a good comparison. Passing water deep through the ankle is quite simple, while passing water deep through the knee is much more difficult.
The effectiveness of oil splash lubrication largely depends on the gear speed. According to the general view, a tangential velocity of at least 3 m/s is necessary for the effectiveness of splash lubrication.
- Forced oil lubrication
This method is suitable for high-speed applications, including oil mist, oil mist, and oil droplets. Oil atomizes during the oil mist process, saturating all areas of gears and other internal components. On the other hand, oil injection technology directly sprays lubricating oil onto gears and other components, but it is not always successful because large centrifugal forces can change the direction of oil injection.
Oil drop technology directly “drops” oil to the area that needs to be treated. The pump transports lubricant from the reservoir to the gears and/or bearings through an internal pipeline system. When some components are difficult to reach by oil splashing, this method is often combined with the splashing (called oil bath) method.
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