Description
Right-Angle Agricultural Drive | PTO-Compatible | Global Supply
Technical Specifications
Every dimension and parameter listed below has been verified against the engineering drawing for model HC-01-229, which shares its mechanical specification with the EP-1 series aluminum gearbox. Always cross-reference with your implement manufacturer driveline requirements before installing this aluminum gearbox on your farm machinery.
| Parameter | Value | Notes |
|---|---|---|
| Item / Model | EP-1 (HC-01-229 series) | Right-angle bevel aluminum gearbox |
| Gear Ratio | 1 : 1.35 | Speed step-up configuration built into this aluminum gearbox |
| Number of Teeth | 16 / 16 | Equal-tooth bevel pair inside the aluminum gearbox |
| Module | 4.5 | ISO 54 module standard adopted for this aluminum gearbox |
| Rated Input Speed | 540 RPM | Standard PTO speed (ASABE S205) matched for the aluminum gearbox |
| Input Shaft | 1 3/8″ Z6 spline | 6-spline, ISO 500 compatible connection for the aluminum gearbox |
| Output Shaft | Φ25 mm optical axis | Smooth shaft with keyway option fitted on the aluminum gearbox |
| Net Weight | 13 kg | Aluminium alloy housing of the aluminum gearbox |
| Overall Height | 280 mm | Measured from mounting flange base of the aluminum gearbox |
| Housing Width | 224.25 mm | Including mounting flange of the aluminum gearbox |
| Output Shaft Protrusion | 82.3 mm | Usable shaft length extending out from the aluminum gearbox |
| Mounting Holes | 2 × Φ8 mm | Standard flange bolt pattern for the aluminum gearbox |
| Lower Housing Depth | 93 mm | Measured from flange to base of the aluminum gearbox |
| Spline Engagement Length | 40 mm / 22 mm | Dual-engagement zone built for the aluminum gearbox input |
How the EP-1 Aluminum Gearbox Works
At its core, the EP-1 aluminum gearbox relies on a right-angle bevel gear transmission principle. Rotational energy from the tractor PTO enters via the 1 3/8″ Z6 spline input shaft at 540 RPM. Inside the aluminum gearbox housing, a matched pair of precision-ground bevel gears — each carrying 16 teeth cut to Module 4.5 — mesh at a 90-degree angle. This perpendicular mesh redirects the driveline axis while simultaneously applying the 1:1.35 ratio, which means the output shaft turns at approximately 729 RPM for every 540 RPM supplied by the tractor.
The Φ25 mm optical output axis exits at a right angle to the input, making this aluminum gearbox particularly suited to implements that require a transverse or lateral power output — rotary cutters, small augers, and compact grain broadcasters are typical examples. Gear lubrication is contained within the sealed aluminium housing of the aluminum gearbox, reducing maintenance intervals and preventing contamination ingress from field debris, mud, or moisture. Tapered roller bearings on both shaft ends manage both radial and axial loads, while the die-cast aluminium body of the aluminum gearbox conducts heat away from the gear mesh zone far more efficiently than comparable cast-iron housings.
Five Key Advantages of the EP-1 Aluminum Gearbox
1. Reduced Machine Weight
The high-pressure die-cast aluminium alloy housing of this aluminum gearbox is 35–40% lighter than an equivalent cast-iron aluminum right angle gearbox, reducing total implement mass, lowering soil compaction, and easing mounting on lightweight frames used across Brazilian and Latin American farming operations. Many machine builders select this aluminum gearbox specifically to cut overall equipment weight without sacrificing transmission performance.
2. Precision-Machined Bevel Gear Set
The 16/16 Module 4.5 bevel gear pair inside the aluminum gearbox is CNC-hobbed and heat-treated to surface hardness levels that resist pitting and scoring, even under intermittent shock loads typical of uneven terrain. This translates directly into lower operating noise and a longer service life between aluminum gearbox replacement events. Well-machined internal gears are the core strength of this aluminum gearbox for agricultural field work.
3. Universal PTO Compatibility
The 1 3/8″ Z6 spline input conforms to ASABE/ISO 500 standards, ensuring the EP-1 aluminum gearbox connects directly to any standard 540 RPM tractor PTO without adapter sleeves. This universal fit makes the aluminum gearbox an ideal power transmission component for machinery sold into diverse export markets, including the EU, Brazil, Australia, and South Korea.
4. Corrosion-Resistant Sealed Housing
The aluminium body of the aluminum gearbox undergoes a chemical surface treatment that resists oxidation in high-humidity tropical environments — a practical requirement for seasonal operations in coastal regions of Brazil, Indonesia, and West Africa. Sealed shaft lips keep lubricant in and field contaminants out of the aluminum gearbox, reducing service frequency and protecting internal power transmission components against premature wear.
5. Direct-Fit Replacement Geometry
With a mounting flange pattern of 2 × Φ8 mm at a fixed bolt circle, the EP-1 aluminum gearbox is dimensionally compatible with a wide range of OEM housings from European and North American implement brands, enabling fast field replacement of an old aluminum gearbox. Downtime during busy harvest seasons — a critical operational cost across agricultural regions globally — is substantially reduced.
Materials & Construction
Material selection for the EP-1 aluminum gearbox reflects engineering priorities of weight reduction, thermal management, and fatigue resistance under cyclic agricultural loading. The outer housing of the aluminum gearbox is produced from ADC12 aluminium alloy (equivalent to EN AC-46000), which offers a tensile strength of 320 MPa, excellent machinability, and a coefficient of thermal expansion that closely matches the internal steel shafting — reducing thermally induced stress at operating temperature inside the aluminum gearbox.
The bevel gears themselves are forged from 20CrMnTi alloy steel, a carburising grade widely specified across the aluminium worm gearbox and bevel gearbox industries for its balanced core toughness and hard case surface. After gear hobbing, each gear set for the aluminum gearbox undergoes carburising and quenching to reach a surface hardness of 58–62 HRC, followed by precision lapping to reduce surface roughness and improve initial contact pattern. Bearing races are made from GCr15 bearing steel (equivalent to AISI 52100), hardened to 60–64 HRC. Oil seals are NBR rubber rated for continuous operation between −30°C and +120°C, making the aluminum gearbox suitable for both tropical South American fieldwork and colder Northern European winters.
Application Scenarios
The EP-1 aluminum gearbox serves a broad range of PTO-driven agricultural and light industrial implements. Below are the principal categories where this aluminum gearbox delivers consistent value:
Rotary Mowers & Mulchers
Compact rotary cutters widely used for pasture management in Brazil, Argentina, and Australia rely on this aluminum gearbox to transfer PTO rotation to horizontal cutting decks. The EP-1’s 1:1.35 speed step-up delivers blade tip speeds adequate for clean vegetation cutting while operating at the tractor’s standard 540 RPM PTO, making the aluminum gearbox a top choice for mulcher OEMs.
Fertiliser & Seed Broadcasters
Spinning disc broadcasters require a light, compact aluminium gear box to redirect PTO drive to a vertical axis spinner. The sealed housing of the aluminum gearbox protects gear surfaces from the highly corrosive fertiliser dust environments experienced across grain-producing regions in southern Brazil and central Europe.
Compact Tillage Implements
Light rotary tillers, power harrows, and soil conditioners for small-scale vegetable farming in Southeast Asia and Southern Europe benefit from the aluminum gearbox’s compact footprint and low weight. The aluminum gearbox fits into restricted chassis spaces where bulkier cast-iron gearboxes would compromise machine balance.
Water Pump Drives
In irrigation-intensive regions of Northeast Brazil and Sub-Saharan Africa, PTO-driven centrifugal pumps are a primary water supply solution. The EP-1 aluminum gearbox acts as an aluminum right angle gearbox adaptor, orientating pump shaft alignment to suit installation constraints while providing the speed ratio needed for efficient pump operation.
Light Industrial Conveyor Drives
Beyond agriculture, the EP-1 aluminum gearbox also finds application in food-processing facilities and light packaging lines where a reliable power transmission component is required to redirect motor torque at a right angle. The sealed aluminium housing of the aluminum gearbox meets hygiene requirements in food environments far more readily than open-frame steel alternatives.
Regulatory Standards & Compliance by Region
Selecting any aluminum gearbox for agricultural or industrial use requires an understanding of the applicable safety and performance standards in each target market. The EP-1 aluminum gearbox has been engineered to align with the major frameworks listed below.
Brazil (ABNT / INMETRO)
Brazil’s ABNT NBR standards cover mechanical drive components on agricultural machinery. INMETRO type-certification may be required for PTO-driven implements marketed commercially within Brazil. The EP-1 aluminum gearbox’s compliance with ISO 500 PTO shaft dimensions and ISO 11684 safety marking requirements supports straightforward INMETRO documentation for this aluminum gearbox.
EU Markets (CE / Machinery Directive 2006/42/EC)
All agricultural power transmission components placed on EU markets must satisfy the Machinery Directive 2006/42/EC, covering risk assessment, guarding requirements, and technical file documentation. PTO shaft connections must meet EN ISO 500 dimensions. CE conformity documentation for the aluminum gearbox is available upon request for OEM integration of this aluminum gearbox.
United States & Canada (ASABE / OSHA)
North American agricultural equipment standards are governed by ASABE (formerly ASAE), specifically ASABE S205.1 for PTO drive shaft connections at 540 RPM, and ASABE S203 for PTO guards. OSHA 29 CFR 1928 sets mandatory PTO guarding requirements for agricultural tractors sold in the US, applicable to aftermarket driveline components including this aluminum gearbox.
Australia (AS / NZS)
The AS/NZS 4024.3 series addresses safety of machinery for power transmission, and Safe Work Australia codes mandate appropriate guarding on rotating PTO shafts. Farm machinery dealers in Australia importing drive components like the aluminum gearbox must verify compliance with AS 1797 and the relevant product safety standard under the Australian Consumer Law (ACL).
South Korea (KC Mark / KSAF)
South Korea’s Rural Development Administration (RDA) sets type-approval requirements for PTO-driven implements under the KSAF agricultural equipment regulations. The KC safety mark may be required for electrical components integrated with drive systems. Gear unit dimensional standards follow KS B 1405 for bevel gear modules, matching the specifications built into our aluminum gearbox.
ISO International Standards
Beyond national frameworks, the EP-1 aluminum gearbox is designed to meet ISO 1328 gear accuracy grades, ISO 281 dynamic bearing load rating methodology, and ISO 6743-6 gear lubricant classification. These international references are the foundation for any technical evaluation of an aluminium worm gear reducer or bevel aluminum gearbox in export markets worldwide.
About Us
We are a specialist manufacturer of agricultural and industrial power transmission components, with a dedicated product range spanning aluminum gearbox assemblies, PTO drive shafts, and matched agricultural gearboxes for global OEM and aftermarket customers. Our flagship offering is the EP-1 aluminum gearbox, trusted by equipment builders across multiple continents. Our engineering team works across gear design, material selection, and precision machining to produce drive components that meet the working realities of farmers and machine builders from Brazil to South Korea. Quality management follows ISO 9001 procedures throughout casting, machining, heat treatment, assembly, and testing, with each aluminum gearbox passing torque capacity and backlash verification before dispatch.
Workshop
Field Notes from Engineers
“We sourced the EP-1 as an aluminum gearbox replacement for our rotary mulcher line sold into the Mato Grosso region of Brazil. Installation was straightforward — the 1 3/8 Z6 input seated directly onto our existing PTO coupler, and the Φ25 output shaft keyed into our blade disc hub without modification. After a full sugarcane ratoon-cleaning season, roughly 400 operational hours, we recorded no gear wear progression and the sealed housing of the aluminum gearbox showed zero lubricant leakage. Weight savings against our previous cast-iron unit were exactly 38%, which meaningfully improved the balance on our three-point linkage, making this aluminum gearbox a permanent part of our equipment design.”
— Senior Drivetrain Engineer, Agricultural Implement Manufacturer, Brazil
Procurement use: OEM supply for 200-unit rotary mulcher production run
“We evaluated the EP-1 aluminum gearbox alongside two European alternatives for our compact fertiliser broadcaster programme serving the Korean and Japanese markets. The Module 4.5 gear set ran noticeably quieter than the competing units during our 50-hour noise bench test — measured at approximately 4 dB(A) lower at full 540 RPM input. The aluminum gearbox housing temperature stabilised at 62°C in sustained load, well within the NBR oil seal rating. CE documentation arrived within five working days of our request, which kept our machinery directive technical file on schedule. We now specify this aluminum gearbox as standard on our mid-range broadcaster product.”
— R&D Engineer, Precision Agriculture Equipment Division, South Korea
Procurement use: Component qualification for new product line, 350 units per annum
Related Products
The EP-1 aluminum gearbox is part of a broader drivetrain system. For full driveline compatibility and a one-stop supply solution, we also supply matched PTO shafts and the complete range of agricultural gearboxes that integrate directly with this aluminum gearbox.
PTO Shafts
Matched PTO driveline shafts in 540 RPM and 1000 RPM configurations, with standard Z6 and Z21 spline profiles for direct coupling to the EP-1 aluminum gearbox input. Full telescopic length range available to suit any tractor-implement gap connected to this aluminum gearbox.
Agricultural Gearboxes
Our full-series Agricultural Gearbox range covers mower gearboxes, baler gearboxes, spreader drives, and heavy-duty rotary tiller gearboxes — all engineered for system compatibility with our aluminium bevel and worm drive units including the EP-1 aluminum gearbox.
Frequently Asked Questions
Q1. Which tractor PTO configurations are compatible with the EP-1 aluminum gearbox for small farm use in Brazil?
The EP-1 aluminum gearbox accepts a standard 1 3/8″ Z6 six-spline input shaft, which is the universal connection profile for 540 RPM PTO tractors across Brazil and Latin America under ABNT/ISO 500. It is compatible with compact utility tractors from 25 hp upward — commonly used in Brazilian family farming — as well as mid-range 60–80 hp row-crop tractors in Mato Grosso and Rio Grande do Sul grain regions, allowing seamless installation of this aluminum gearbox.
Q2. How do I clean and maintain an aluminum gearbox on a rotary mower after a wet season field season?
After a wet season, rinse the exterior of the aluminium housing of the aluminum gearbox with low-pressure water to remove accumulated soil and plant matter. Avoid directing a high-pressure jet at the shaft seals of the aluminum gearbox. Check the oil sight glass or drain plug — the lubricant should be changed if it appears milky (water contamination) or dark grey (metallic particles from gear wear inside the aluminum gearbox). Refill with a GL-4 or GL-5 rated gear oil of ISO VG 220 viscosity. Re-grease the external spline joint on the input shaft of the aluminum gearbox with a lithium-complex grease rated for agricultural use.
Q3. What is the difference between an aluminum worm gearbox and an aluminum right angle bevel gearbox for agricultural implements?
An aluminum worm gearbox uses a worm screw meshing against a worm wheel to achieve high reduction ratios in a compact package, typically with self-locking capability but lower efficiency (50–90%). A right-angle bevel gearbox like the EP-1 aluminum gearbox uses intersecting bevel gears that provide higher mechanical efficiency (typically 96–98%), making this aluminum gearbox the preferred choice for PTO applications where input power transfer must be maximised. Bevel units such as our aluminum gearbox are therefore more common on mowers and spreaders, while worm units suit actuators and slow-drive accessories.
Q4. Where can I find a reliable aluminum gearbox manufacturer that supplies replacement units for European and Brazilian rotary mowers?
Reputable aluminum gearbox manufacturers for the European and Brazilian rotary mower market supply units conforming to ISO 500 spline profiles and provide CE technical documentation for EU importers. When evaluating suppliers, request ISO 9001 certification, dimensional drawings verified against ABNT or EN standards, and confirmation of gear material grade and heat treatment specification for the aluminum gearbox. A sample gear tooth hardness test report is a reliable indicator of production consistency for the aluminum gearbox you plan to purchase.
Q5. How does an aluminum planetary gearbox compare to a bevel drive for compact precision agricultural automation applications?
An aluminum planetary gearbox distributes torque across multiple planet gears simultaneously, achieving high torque density and low backlash in a very compact coaxial format — ideal for precision positioning in automated seeding or guidance systems. A right-angle bevel gearbox like the EP-1 aluminum gearbox prioritises axis redirection and speed ratio in a simpler two-gear arrangement, making this aluminum gearbox more serviceable in field conditions and cost-effective for high-volume agricultural implement production. The two designs serve fundamentally different functional roles, so select the aluminum gearbox type matching your machine’s power requirements.
Q6. When should I schedule an aluminum gearbox replacement on my PTO-driven fertiliser spreader operating in South American grain farming conditions?
Schedule an aluminum gearbox replacement when you observe any of the following: sustained output shaft vibration that cannot be corrected by re-greasing, audible gear chatter or whining at rated input speed, visible gear housing cracks around the mounting flange of the aluminum gearbox, or oil analysis showing iron particle levels above 150 ppm (indicating significant gear wear inside the aluminum gearbox). In Brazilian soybean and corn farming, gearboxes on spreaders typically accumulate 300–600 hours annually during two-season application cycles, so inspection of your aluminum gearbox at each season break is advisable.
Q7. Which input shaft spline profile does the EP-1 aluminum right angle gearbox use, and is it compatible with standard Australian tractor PTO connections?
The EP-1 aluminum gearbox uses a 1 3/8″ diameter Z6 (6-spline) input profile conforming to ISO 500 and ASABE S205, which is the standard 540 RPM PTO connection profile globally. All major tractor brands sold in Australia — including John Deere, New Holland, Massey Ferguson, and Kubota — produce PTO stubs in this dimension as standard on their 540 RPM output option. Direct connection is achieved without adapters for the aluminum gearbox. Australian dealers should additionally verify that the PTO shaft connecting the tractor to this aluminium gear box carries the AS/NZS-compliant safety guard.
Q8. How does a double reduction worm gearbox differ from the single-stage bevel design in the EP-1, and which suits high-torque low-speed agricultural implements better?
A double reduction worm gearbox chains two worm-and-wheel stages to achieve very high reduction ratios — typically 100:1 or more — producing very low output speed with correspondingly high torque multiplication. This makes it suitable for slow-moving conveyors, auger drives, or heavy-duty mixing implements. The EP-1 aluminum gearbox’s single-stage 1:1.35 bevel design is optimised for the opposite requirement: transferring power efficiently at near-input speed with axis redirection, for implements like mowers and spreaders that need high rotational speed rather than high torque multiplication, making this aluminum gearbox ideal for such machinery.
Editor: PXY
