EP-BGB9 Lawn Mower Gearbox For Agricultural Lawn Mower
The EP-BGB9 lawn mower gearbox from TEBSA Argentina is a powerhouse designed to manage speed and torque through its internal gear system, boosting the efficiency of your rotary cutter. Operating at 30 horsepower, this gearbox features a rugged ductile iron housing and a smooth 1-3/8-inch input shaft. Its bevel gears, set at a 1:1.46 ratio, make it a perfect match for 4-foot, 5-foot, and 6-foot rotary cutters. With four 5/8-inch bolt holes on a 6-3/4-inch bolt circle, installation is straightforward and secure.
Developed by TEBSA’s skilled engineers, this right-angle gearbox meets the real-world needs of lawn mower users. Whether you’re maintaining vast lawns, tackling overgrown pastures, or prepping land in Argentina’s Pampas region, the EP-BGB9 delivers. It offers flexible speed ratios and input/output options, letting you customize it for your specific tasks.
Technical Specifications and Features
The EP-BGB9 lawn mower gearbox stands out with its blend of durability and precision. Below are its core specifications, showcasing why it’s a top pick for agricultural and landscaping pros.
ITEM | EP-BGB9 Lawn Mower Gearbox |
Ratio | 1:1 / 1:1.35 / 1:1.46 / 1:2 |
Teeth | 16/16 23/17 22/15 15/30 |
Module | 6.35 / 5.0 / 5.0 / 3.5 |
Power (HP) | 30 |
Rated Input | 540rpm |
Input/Output Description | 1 3/8 Z6 13/8 Z6 Optic Axis |
Weight (N.W) | 23Kg |
This gearbox isn’t just about numbers—it’s built to last. The ductile iron housing resists cracks and wear, even under the strain of heavy mowing. Bevel gears, precision-crafted with options like 1:1 or 1:1.46 ratios, ensure smooth power transfer from your tractor’s 540 RPM PTO to the blades. Weighing 23 kilograms, it’s sturdy without bogging down your equipment.
What sets the EP-BGB9 apart? Its versatility. With multiple gear ratios—1:1, 1:1.35, 1:1.46, and 1:2—you can tweak performance for light lawn touch-ups or thick brush clearing. The 1-3/8-inch Z6 spline shaft fits most standard PTO setups, making it a go-to for rotary cutter owners. Whether you’re searching for “lawn mower gearbox for sale” or “30 HP gearbox for rotary cutter,” this model checks the boxes.
For technical buffs, the module range (3.5 to 6.35) reflects careful gear sizing, balancing strength and efficiency. Heat-treated alloy steel in the gears adds toughness, while the right-angle design keeps everything compact. In Argentina, where soybean fields and pastures stretch wide, this gearbox handles the load without breaking a sweat.
Applications and Benefits in Agriculture
The EP-BGB9 lawn mower gearbox shines in real-world use, especially for rotary cutters sizing 4 to 6 feet. It’s a workhorse for landscaping, farming, and land prep, delivering power where it counts. Here’s how it performs across key applications and why it’s worth your investment.
Common Uses
- **Lawn Maintenance**: Keeps parks, estates, and rural properties in Argentina neat and trim.
- **Pasture Management**: Clears overgrown grass or weeds for livestock grazing, vital in regions like Córdoba or Buenos Aires.
- **Crop Residue Cutting**: Chops down stalks after soybean or wheat harvests, prepping fields for the next season.
- **Brush Clearing**: Tackles thicker vegetation on small farms or construction sites.
Key Benefits
Benefit | Description |
Efficiency Boost | Transfers torque seamlessly, cutting job time on 5-foot rotary cutters. |
Long-Lasting Build | Ductile iron and alloy steel stand up to Argentina’s rugged terrain. |
Custom Fit | Multiple ratios match your mower to specific tasks, from light to heavy duty. |
Cost Savings | TEBSA’s 50% cost edge over originals keeps your budget in check. |
Imagine mowing a sprawling lawn in Rosario or clearing pasture in Santa Fe. The EP-BGB9’s 30 HP rating powers through, while its bevel gears keep blades spinning steady. For farmers asking, “What’s the best gearbox for a 6-foot rotary cutter?”—this is it. Its right-angle layout saves space, and the ductile iron shrugs off impacts from rocks or uneven ground.
In Argentina’s agricultural heartland, where soybean and wheat dominate, this gearbox cuts residue fast, saving hours. Industry terms like “PTO-driven gearbox” or “bevel gear transmission” pop up often, and the EP-BGB9 nails both. Online buyers searching “buy lawn mower gearbox Argentina” will find its specs—30 HP, 540 RPM, 23 kg—hit the sweet spot for mid-sized cutters.
Maintenance and Installation Tips
Keeping the EP-BGB9 lawn mower gearbox in top shape is simple, and setting it up right ensures years of reliable use. Here’s what you need to know, whether you’re a farmer in Mendoza or a landscaper shopping online.
Installation Guide
Mounting the EP-BGB9 is a breeze. Its four 5/8-inch bolt holes on a 6-3/4-inch circle align with standard 4-, 5-, or 6-foot rotary cutters. The 1-3/8-inch Z6 shaft slides onto most PTOs—double-check your tractor’s spline count (6 splines) for a snug fit. Torque the bolts evenly to avoid stress, and you’re ready to roll.
Maintenance Tips
- **Oil Checks**: Peek at the oil level every 50 hours. Use gear oil suited for 540 RPM gearboxes—check TEBSA’s manual for specifics.
- **Gear Inspection**: Look for wear on the bevel gears yearly. A quick clean keeps them humming.
- **Shaft Care**: Grease the input shaft monthly to avoid rust, especially in Argentina’s humid summers.
- **Bolt Tightness**: Re-check bolts after the first 10 hours of use—vibration can loosen them.
This gearbox’s ductile iron housing takes a beating, but regular care prevents big repairs. For technical folks, the 1:1.46 ratio means slightly higher blade speed—great for finer cuts—but watch oil quality to protect those teeth (22/15 configuration). Long-tail searches like “how to maintain a lawn mower gearbox” lead here: it’s low-fuss with big payoff.
About TEBSA Argentina and Our Product Range
Since 1997, TEBSA Argentina has been a trusted name in agricultural gearboxes, offering a 100% quality guarantee on every order. Based in Argentina, we’re part of the HZPT family, bringing over two decades of know-how to farmers and landscapers. Our edge? A 50% cost advantage over original brands, plus a sharp engineering team that responds within 24 hours. From fast prototypes to bulk production, we’ve got the mechanical chops to back it up.
The EP-BGB9 is just one piece of our lineup. We also craft:
- **Rotary Cutter Gearboxes**: Like the RC-61 for heavier jobs.
- **Fertilizer Spreader Gearboxes**: Precision for even spreading.
- **Post Hole Digger Gearboxes**: Tough digging for fencing.
- **Rotary Tiller Gearboxes**: Soil prep made easy.
Need a “lawn mower gearbox supplier in Argentina” or “30 HP agricultural gearbox online”? TEBSA delivers. Our materials—alloy steel, ductile iron, even POM—meet ISO9001-2015 standards, and our processes (forging, grinding, heat treatment) ensure strength. Contact us to explore how we can power your next project.
About us

We guarantee top-quality products at the best prices in China! Special orders are welcome, and if you’re interested in any of our products, feel free to reach out for more detailed information. We ensure our products are safe, high-quality, and reasonably priced. Please contact us as soon as possible if you’d like to learn more. We’re eager to cooperate with you!
A large portion of our products is exported to Europe and the Americas, with both standard and custom options available. We can manufacture according to your drawings or samples, using standard materials or as per your specific requirements. Choosing us means choosing reliability.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request

Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly

QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port

Industries We Service
