EP-1:1 Ratio 10HP 540rpm Aluminum Gearbox
The EP-1:1 Ratio 10HP 540rpm aluminum gearbox is a compact right-angle bevel gear unit purpose-built for agricultural machinery operating at standard PTO speeds. The die-cast aluminum gearbox housing keeps total assembly weight around 4 kg — a significant advantage compared to cast-iron equivalents when operators need to swap implements frequently during seasonal work cycles.
Engineered with a 15/15 tooth bevel gear set on a Module 4.5 specification, the unit achieves a perfect 1:1 transmission ratio, meaning the implement shaft rotates at the same speed as the tractor PTO — exactly 540 RPM under standard conditions.
The compact footprint — 134 mm wide by 184 mm long with an 80×100 mm bolt pattern — simplifies retrofitting and aluminum gearbox replacement on existing implement frames. Four M11 mounting holes provide a secure, vibration-resistant connection.
AGRICULTURAL POWER TRANSMISSION
EP-1:1 Ratio 10HP 540rpm Aluminum Gearbox
A robust, field-proven aluminum gearbox engineered for demanding PTO-driven agricultural applications — delivering precise 1:1 power redirection with low weight and long service life.
Quick Specifications
- Model: EP-1:1 / HC-RV012
- Gear Ratio: 1:1
- Power Rating: 10 HP
- Rated Input Speed: 540 RPM
- Teeth (Pinion/Gear): 15 / 15
- Module: 4.5
- Input/Output Shaft: 1-3/8 Z6 (6-spline)
- Net Weight: 4 kg
- Housing Material: Die-cast Aluminum Alloy
- Gear Type: Bevel Gear, Right-Angle Drive
Technical Parameters of Aluminum Gearbox
| Aluminum Gearbox Parameter | Specification |
|---|---|
| Model / Item No. | EP-1:1 Aluminum Gearbox |
| Gear Ratio | 1:1 |
| Number of Teeth (Pinion / Gear) | 15 / 15 |
| Module | 4.5 |
| Rated Power | 10 HP (7.46 kW) |
| Rated Input Speed | 540 RPM |
| Input / Output Shaft Type | 1-3/8 Z6 (6-spline, ASABE / ISO 500 compatible) |
| Drive Type | Right-Angle Bevel Gear |
| Housing Material | Die-cast Aluminum Alloy |
| Overall Dimensions (L × W × H) | 184 mm × 134 mm × 100 mm (approx.) |
| Input Shaft Length | 137 mm |
| Output Shaft Diameter | Ø 25 mm |
| Bolt Circle Pattern | 80 mm × 100 mm, 4 × Ø11 mm holes |
| Lubrication | Oil-bath splash lubrication |
| Net Weight | 4 kg |
| Quality Standard | ISO 9001:2015 Certified Manufacturing |
Looking for the complete agricultural gearbox lineup? Browse our full range of PTO-compatible right-angle and inline drives.
Five Key Product Advantages of Aluminum Gearbox
Lightweight Aluminum Housing
At just 4 kg, the die-cast aluminium gearbox housing dramatically reduces hanging weight on implement frames. Operators spend less time managing counterbalance adjustments and experience lower wear on hitch linkages over a full season.
Universal 1-3/8 Z6 Spline Interface
The industry-standard six-spline shaft connection pairs directly with virtually every category of PTO Shaft on the market, eliminating proprietary adapter costs and making cross-brand compatibility straightforward for dealers and end users alike.
Precision 1:1 Bevel Gear Set
The matched 15/15-tooth bevel pair on a 4.5 module delivers true 1:1 ratio accuracy with tight backlash tolerances. Consistent output speed means implement timing remains predictable — critical for seed metering drives and chemical injection equipment where flow rate depends on shaft speed.
Oil-Bath Lubrication for Extended Duty Cycles
Internal splash lubrication keeps bevel gear faces and bearings continuously oiled without requiring external oil lines or pumps. This self-contained system maintains film thickness even during sustained 540-RPM operation in high-ambient-temperature environments common to Australian grain farming and Brazilian sugarcane harvesting.
Direct-Fit Replacement Geometry
The 134×184 mm body and 80×100 mm four-bolt pattern match widely used OEM mounting templates, so this unit serves as a straightforward aluminum gearbox replacement on aging implement frames without welding, drilling new holes, or fabricating custom brackets — reducing downtime to under an hour in field conditions.
How This Aluminum Gearbox Works
Power enters the unit through the 1-3/8 Z6 splined input shaft, which connects directly to the tractor's PTO coupler via a matched Қуат беру білігі assembly. The input shaft drives a precision-machined straight bevel gear pinion (15 teeth, Module 4.5). This pinion meshes at a 90-degree angle with an identical mating bevel gear — also 15 teeth — mounted on the output shaft. Because both gears carry the same tooth count, the ratio is exactly 1:1: for every revolution the input shaft completes, the output shaft completes one revolution as well. Torque is transferred with minimal slip or ratio deviation across the rated 540-RPM operating envelope.
The bevel gear pair is housed inside a sealed die-cast aluminum gearbox housing. An oil fill port allows the internal sump to be charged with the appropriate gear oil, and oil-bath lubrication then continuously coats both gear flanks and the inner bearing races as the gears rotate. This keeps operating temperatures well below the oil degradation threshold even during prolonged field sessions. Sealed lip seals on both shaft exits prevent oil migration onto the implement frame or PTO shaft, and they also block ingress of dust, crop residue, and moisture — all of which are present in the typical agricultural environment.
The right-angle drive configuration is important for many implement designs where the source of rotary power — the tractor PTO — runs longitudinally, but the working tool (a spreader disc, mower blade shaft, or auger flight) needs to rotate on a transverse or offset axis. The compact body means these direction changes can be made within tight implement frames without creating awkward belt or chain routing, keeping overall driveline losses low and maintenance access straightforward. Knowing how to clean aluminum gearbox units properly is simple: drain used oil, flush briefly with clean gear oil, refill to the sight mark, and inspect the shaft seals annually.
Material & Construction of Aluminum Gearbox
The outer casing is a high-pressure die-cast aluminum alloy — the same material category used in automotive transmission housings where weight-to-strength ratio is critical. Compared to grey cast iron, die-cast aluminum offers roughly 60–65% lower density, superior thermal conductivity (helping to dissipate frictional heat from the gear mesh), and inherent corrosion resistance in humid field environments without requiring additional protective coatings.
Internal gears are machined from case-hardened alloy steel, providing a hard, wear-resistant tooth surface while the gear core retains toughness to absorb impact loads from sudden load spikes — a real-world condition when a rotary cutter blade strikes a buried rock or a spreader auger meets a compacted clump. Shafts are turned from medium-carbon steel and ground to close tolerances at the bearing seats and spline sections. Rolling-element bearings (single-row angular contact or deep-groove ball bearings depending on the shaft position) handle both radial and axial load components that arise as the bevel gears generate separating forces during torque transfer. All internal steel components are phosphated and oil-dipped before assembly to provide baseline corrosion protection during storage and shipping.
Shaft seals are nitrile rubber (NBR) lip seals, compatible with mineral-based EP gear oils and most multi-grade lubricants. The casting itself features integral cooling fins on the outer surface of the housing, a subtle but effective passive cooling feature that becomes meaningful on warm-climate harvests in Colombia, Brazil, and Sub-Saharan Africa where ambient temperatures may exceed 35°C for extended operating periods. The aluminum gearbox housing also contributes to an overall assembly that resists galvanic corrosion when mounted on steel implement frames thanks to the use of appropriate isolation gaskets at the mounting interface.
Application Scenarios of Aluminum Gearbox
🌾 Rotary Mowers & Slashers
The 1:1 ratio maintains the 540 RPM blade-tip speed specified by most rotary cutter manufacturers. Suitable for grass, brush, and light scrub clearing across farms in the UK, Australia, and the US Midwest.
🌱 Fertilizer & Lime Spreaders
Spinning disc spreaders rely on a predictable shaft speed to achieve calibrated spread patterns. The aluminum right angle gearbox keeps the disc at consistent 540 RPM, ensuring even product distribution across paddocks in the Netherlands, Canada, and South Korea.
🌀 Grain Augers & Conveyors
Many farm-scale grain auger drives use a direct 540-RPM 1:1 input. The compact body of this aluminum gearbox fits inside standard auger head housings without increasing the overall machine footprint, which is important for grain handling operations in Brazil and Colombia.
💧 Water Pump Drives
Irrigation pump sets in field conditions often use PTO-driven centrifugal pumps. A right-angle bevel drive allows the pump impeller shaft to run perpendicular to the tractor — essential when the pump is positioned broadside to the tractor to fit alongside irrigation channels or pivot rails across Australian and Middle Eastern irrigation schemes.
🚜 Seeder & Planter Drives
Precision seeders and row-crop planters use shaft-driven metering rollers that must rotate in exact proportion to the PTO speed. The accurate 1:1 output of this unit supports seed calibration settings without requiring aftermarket ratio correction, simplifying setup across diverse row spacings and seed types from canola to corn.
Regulatory Compliance & Standards
Agricultural power transmission components are subject to safety and performance standards in major markets. Understanding these requirements helps buyers confirm product suitability before import or field deployment.
🇺🇸 United States — ASABE S291 & OSHA
The American Society of Agricultural and Biological Engineers (ASABE) standard S291 defines the 1-3/8" 6-spline PTO shaft profile. OSHA 29 CFR 1928.57 requires rotating PTO components on farms to be guarded. This unit's sealed housing design supports compliance with shielding requirements when used with an appropriate PTO driveline guard.
🇪🇺 European Union — Machinery Directive 2006/42/EC
EU Machinery Directive 2006/42/EC requires agricultural PTO drivelines and gearboxes to meet essential health and safety requirements. ISO 500 governs the PTO shaft coupling dimensions used in this unit. CE marking is required for implement systems sold within the EU, and the 1-3/8 Z6 interface conforms to the ISO 500-1 coupling category.
🇦🇺 Australia / New Zealand — AS 2868
Australian Standard AS 2868 addresses guarding of PTO shafts on agricultural tractors and self-propelled machinery. The implement gearbox must be compatible with a certified driveline guard system. The standard spline interface of this unit allows fitting of AS-compliant telescoping PTO shaft guards available from local agricultural machinery suppliers.
🇧🇷 Brazil — ABNT NBR 16690
Brazil's ABNT technical standards for agricultural machinery PTO safety align broadly with ISO 500 coupling dimensions. Importers must also comply with INMETRO technical regulations for mechanical power transmission components when introducing equipment into the Brazilian market. The unit's ISO-compliant interface simplifies this certification path.
🇰🇷 South Korea — KS B 6030
Korean Standard KS B 6030 covers power take-off shaft connections for agricultural tractors. Dimensions are harmonized with ISO 500, meaning the 1-3/8 Z6 shaft profile used in this aluminum right angle gearbox is directly applicable to South Korean implements and compliant with local industry requirements.
About us - Aluminum Gearbox Manufacturer
With over a decade of mechanical engineering expertise behind our production floor, we specialise in the design and manufacture of industrial and agricultural transmission systems. Our product range spans agricultural gearboxes, worm gear reducers, planetary gear drives, power take-off shafts, hydraulic cylinders, gears, chains, and motors — all produced under ISO 9001:2015 certified quality management systems.
We work with a broad material palette — ductile iron, cast iron, cast steel, precision cast steel, and cast aluminum — enabling us to match the housing material to each application's weight, corrosion, and load requirements. Custom gear profiles, non-standard shaft dimensions, and tailored assembly configurations are all within scope. Our in-house machining centers handle gear cutting, shaft turning, bore finishing, and assembly under one roof, maintaining traceability across every production batch. This end-to-end capability makes us a practical single-source partner for aluminum gearbox manufacturers requirements and broader power transmission components procurement.
Workshop
Related Products & System Compatibility
PTO Drive Shaft
Our Қуат беру білігі range is engineered to connect directly to the 1-3/8 Z6 spline interface of this aluminum gearbox with zero adapter requirement. Telescoping shaft options accommodate a variety of hitch-to-implement distances, and CE/ASABE compliant driveline guards are available to match. Ordering the gearbox and PTO shaft from a single source eliminates interface compatibility guesswork and reduces lead time — a genuine one-stop supply advantage for dealers outfitting fleets.
Agricultural Gearbox Selection
Beyond this 1:1 unit, the Ауыл шаруашылығы беріліс қорабы catalog covers ratio variants from 1.5:1 through to 4:1, both right-angle and inline configurations, and housings in cast iron and steel as well as aluminum alloy. Whether you need higher torque multiplication for a heavy-duty disc harrow or a compact unit for a specialty horticultural implement, a matching gearbox is available. Consolidating procurement across the full system — gearbox, PTO shaft, and mounting hardware — from one manufacturing source simplifies vendor management and quality traceability for commercial machinery importers and OEM implement builders.
Frequently Asked Questions
How often should I service and change the gear oil in this aluminum gearbox when running it on a 540 PTO tractor in heavy seasonal use across UK arable fields?
For heavy seasonal use — think continuous days of rotary mowing or spreading during UK harvest — we recommend an initial oil change after the first 50 operating hours to remove any fine metallic particles from the gear-mesh run-in period. After that, an annual drain and refill with fresh 80W-90 mineral gear oil, or every 200 operating hours whichever comes first, is appropriate.
How does this aluminum gearbox compare to a cast-iron agricultural gearbox replacement in terms of heat management during extended summer harvests in Brazil and Colombia?
Aluminum has a thermal conductivity roughly four times higher than cast iron, so heat generated by gear friction migrates through the housing wall and dissipates into ambient air significantly faster. In Brazilian sugarcane or Colombian coffee highland harvesting where ambient temperatures regularly exceed 32°C during the harvest window, this difference matters.
Where can agricultural dealers in the Netherlands and South Korea source a full matched drivetrain — PTO shaft, aluminum gearbox, and mounting hardware — from a single supplier to simplify import logistics?
Dealers looking to consolidate shipments and reduce the complexity of multi-vendor procurement can source the complete drivetrain — compatible PTO shaft assemblies, this aluminum right angle gearbox, and ancillary mounting hardware — from one manufacturing source. Single-origin procurement means batch-level quality documentation, consistent dimensional tolerances across all mating components, and a single point of contact for after-sales technical questions.
Editor: PXY
