EP246-Round Baler Gearbox for Round Baler and Harvester
The EP246 Round Baler Gearbox is a high-capacity power transmission unit engineered for heavy-duty round balers and harvesters. Featuring a precise 1.92:1 deceleration ratio, it efficiently converts a standard 540 r/min input into a robust 282 r/min output, optimizing machine performance for high-volume baling. With a nominal power rating of 100 kW (approx. 134 hp) and an impressive 2000 N.m output torque, this gearbox is built to withstand extreme agricultural loads. It utilizes advanced Gleason Helical Teeth technology, ensuring superior load distribution, reduced noise, and extended service life compared to conventional gearing. Designed for reliability in harsh field conditions, the EP246 delivers consistent power transfer. Custom specifications are available to meet specific OEM requirements, making it an ideal choice for demanding harvesting equipment.
Round Baler Gearbox Series
EP-Round Baler Gearbox for Round Baler and Harvester — EP246
A heavy-duty agricultural round baler gearbox engineered at 1.92:1 deceleration, rated to 100 hp continuous input with 2000 N·m output torque — purpose-built for demanding commercial baling and harvesting operations across global markets.
Technical Specifications — EP246 Round Baler Gearbox
Performance parameters below are confirmed under continuous-duty loaded test conditions at standard PTO input speed. Figures represent nominal ratings; application-specific duty cycles and overload factors should be reviewed with the engineering team at enquiry stage.
| Model | Type | Ratio (i) | Input (r/min) | Output (r/min) | Power (hp) | Torque (N·m) | Toothing | Suitable For |
|---|---|---|---|---|---|---|---|---|
| EP246 | Decelerate | 1.92 : 1 | 540 | 282 | 100 | 2000 | Gleason Helical | Round baler, harvester, etc. |
| Custom gear ratios, shaft end profiles, surface coatings, and special material specifications are available upon request. | ||||||||
Dimensional Data — Single Output (X) Configuration
All measurements in millimetres unless otherwise stated. Refer to the certified engineering drawing for full GD&T callouts and tolerance specifications.
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Overall Width (front view) | 328.0 mm | Overall Width (side view) | 246.0 mm |
| Centre Height | 241.0 mm | Side View Upper Half | 136.6 mm |
| Input Shaft Hub Width | 107.0 mm (inner) / 221.0 mm (total from centre) | Housing Height | 170.0 mm |
| Input Flange OD | Ø145.0 mm | Output Shaft Pilot OD | Ø140.0 mm |
| Flange Bolt Pattern | 8 × M14 | Side View Shaft Centres | 123.0 + 123.0 mm |
| Output Foot Offset | 100.0 mm | X-shaft position | Inline with input axis |
Dimensional Data — Dual Output (X / Y) Configuration
The dual-output variant adds a Y-side output shaft collinear with the X-side, allowing the EP246 round baler gearbox to drive two independent baler subsystems from a single gear set. Key differences from the single-output layout are captured below.
| Parameter | Single Output (X) | Dual Output (X / Y) |
|---|---|---|
| Overall Width (front view) | 328.0 mm | 442.0 mm (221.0 + 221.0) |
| Input Flange OD | Ø145.0 mm | Ø145.0 mm (both sides) |
| Housing Height | 170.0 mm | 170.0 mm |
| Output Pilot OD | Ø140.0 mm | Ø140.0 mm |
| Flange Bolts | 8 × M14 | 8 × M14 |
EP246 — What Sets This Round Baler Gearbox Apart
The EP246 is a high-torque round baler gearbox designed for large-capacity baling platforms and harvester auxiliary drive systems where standard mid-range gearboxes run short on output torque. At the core of its specification sits a 2000 N·m output torque rating — twenty times the figure seen on entry-level units — delivered at 282 r/min output speed from a 540 r/min tractor PTO input. That combination maps directly onto the drive requirements of variable-chamber balers handling heavy, dense windrows of silage, straw, or multi-crop mixtures at sustained throughput rates.
The 1.92:1 deceleration ratio is a considered engineering choice. It is slightly tighter than the more common 2.1:1 ratios found in lighter gearbox classes, which means the output shaft spins faster relative to input — an advantage for baler cam ring speeds that demand higher roll surface velocity to produce tightly formed, uniform cylindrical bales. At 100 hp continuous rated power, the EP246 round baler gearbox sits at the top of the EP series performance ladder, suited for tractors in the 80–120 hp bracket operating European fixed-chamber balers, large North American variable-chamber machines, and harvester-integrated baling modules.
The housing envelope — 328 mm overall width (front view) × 246 mm (side view) with a 241 mm centre height — is larger than lighter-duty models but remains within the frame rail spacing of mainstream commercial balers. The 8×M14 flange bolt pattern and Ø140.0 mm pilot register ensure a positive, aligned mounting without spacers or custom sub-frames. Two shaft configurations (X and Z/Y outputs) allow the unit to drive either a single-output or dual-output driveline depending on baler architecture — a flexibility that makes the EP246 a practical choice for both OEM assembly and round baler gearbox replacement projects.
Round Baler Gearbox Working Principle — EP246 in Detail
The round baler gearbox working principle in the EP246 follows the same fundamental power flow as all agricultural reduction drives, but the execution reflects the demands of high-torque baling: PTO input → gear reduction → baler chamber output. Power enters the EP246 through the X-side input shaft at 540 r/min. Inside the cast housing, a paired Gleason Helical Teeth gear set converts that rotational input through a 1.92:1 mesh, producing 282 r/min at the output shaft (Z position on single-output configurations, or both Y and X on dual-output variants). The helical tooth profile — cut and ground on Gleason equipment to tight lead and profile tolerances — creates a progressive tooth engagement across the full face width, distributing the 2000 N·m load smoothly rather than as a sharp, instantaneous impulse.
Inside the housing, large-diameter taper-roller bearings support both input and output shafts. Their preloaded arrangement eliminates axial float under the combined radial and thrust loads generated when the baler pick-up ingests an uneven windrow or undergoes a sudden slug — common field events that create transient torque spikes well above the nominal 2000 N·m continuous rating. The gear pair runs in a dedicated oil sump, with splash-feed lubrication channels machined into the housing walls routing oil film to the most thermally loaded gear face zones. Shaft seals at each exit point are seated in precision-machined counterbores, and their lip geometry is selected for agricultural-duty contamination resistance under both wet and dusty field conditions.
The external body carries integrated cooling ribs — visible in the dimensional drawings — that increase the effective surface area of the housing for passive convective heat dissipation during extended continuous-duty runs. This matters in high-ambient-temperature environments such as summer grain harvesting in Australia, Brazil, and the southern US, where gearbox oil temperature is the primary constraint on sustained throughput. The overall architecture makes the EP246 one of the more thermally capable units in the round baler gearbox type category without requiring an external oil cooler circuit.
Five Defining Strengths of the EP246 Round Baler Gearbox
At 2000 N·m, the EP246 delivers output torque in the range typically reserved for tractor-driven implements rated above 90 hp. This rating is not a peak figure — it reflects the unit's continuous-duty design load, meaning the gear set, bearings, and housing are all sized for sustained operation at this torque level without exceeding calculated fatigue limits. For operators running large commercial round balers over extended shifts across the grain belts of Australia, Canada, or the UK, that distinction matters.
The EP246 is available in both single X-output and dual X/Y-output configurations, making it adaptable to a wider range of baler architectures than single-configuration gearboxes. A dual-output round baler gearbox drives two load points — for example the bale chamber flywheel and the wrapping arm cam — from a single gear mesh, reducing mechanical complexity and eliminating the need for a secondary reduction stage in the driveline. This approach is increasingly common in modern variable-chamber round baler gearbox equipment design.
The EP246 housing is cast with external cooling ribs on the main body faces. These pressed ribs increase the effective surface area available for convective cooling without adding auxiliary components or maintenance obligations. During prolonged high-throughput runs in warm conditions — a standard situation in Brazilian sugarcane leaf baling or Australian summer straw — the rib geometry keeps gear oil temperature within the operating band, delaying viscosity breakdown and extending the drain interval beyond what a smooth-walled housing would allow.
The Gleason Helical Teeth specification is carried through the entire EP246 gear pair. Helical contact distributes the tooth load across the full face width progressively, which reduces instantaneous Hertzian contact stress at the pitch point and produces a smoother, quieter power transfer than straight-cut alternatives. At the EP246's 2000 N·m rating, controlling contact stress is not a comfort feature — it is the mechanism that determines whether the gear set reaches its designed fatigue life or fails prematurely under field shock loading. The Gleason process also ensures geometric consistency across production runs, keeping dimensional variation within the close tolerances the preloaded bearing arrangement requires.
The EP246 is dimensioned to serve as a round baler gearbox replacement for high-torque legacy units — including Comer code equivalents in the 100 hp class — without requiring baler frame modifications. The 8×M14 flange pattern and Ø140.0 mm pilot register are shared with many European and North American OEM baler specifications, meaning workshops in the Netherlands, South Korea, and Canada can source and fit the EP246 as a straight-swap unit, with standard bolt-hole alignment and no shimming required.
Materials, Manufacturing Process & Quality Assurance
The EP246 housing is produced in ductile iron — also known as nodular or spheroidal graphite iron — with minimum tensile strength ≥420 MPa and elongation ≥12%. Compared to grey cast iron, ductile iron absorbs shock and impact energy without brittle fracture propagation, an important property for a round baler gearbox that will experience hundreds of thousands of abrupt torque reversals across its service life. The housing casting is machined on CNC horizontal boring centres to achieve the close perpendicularity and concentricity tolerances the bearing bore arrangement requires.
Gear pair material is alloy case-hardening steel (18CrNiMo7-6 or equivalent), carburised to a case depth of 1.0–1.4 mm and quench-hardened to 58–62 HRC at the tooth working surface, with a tough core retained at 30–40 HRC. This combination gives the tooth flank maximum contact-fatigue resistance while keeping the gear body resistant to through-fracture under shock. Shafts are machined from 42CrMo4 alloy steel, induction-hardened at journal and key-seat zones, then ground to h6 tolerances at the bearing seats. All gear flanks are profile-ground after heat treatment, eliminating the dimensional scatter that case hardening introduces before grinding and guaranteeing the Gleason Helical profile geometry is maintained at final assembly dimensions.
Each EP246 unit is assembled under the ISO 9001:2015 certified quality management system. Pre-dispatch testing includes a minimum 30-minute loaded run-in at rated input speed, with oil temperature rise, noise signature, and output speed all recorded against acceptance limits. The documented test certificate accompanies every shipment, satisfying the traceability requirements of machinery importers in the EU, Australia, Canada, and South Korea where agricultural equipment must meet regulatory documentation standards at customs and registration stage.
Where the EP246 Round Baler Gearbox Works Best
The EP246's 100 hp / 2000 N·m specification positions it as the go-to round baler gearbox for applications where power and torque demand exceed the capability of standard mid-range units. The scenarios below represent the primary use environments where operators, dealers, and OEM engineers specify the EP246 by design.
Variable-chamber balers processing mixed hay, silage, or multi-crop residue over continuous 10–12 hour shifts require a round baler gearbox with sustained torque capacity well above the nominal operating point. The EP246's continuous 2000 N·m rating covers transient slug-loading events without triggering the oil temperature exceedances that degrade gear film and accelerate bearing fatigue in lighter units.
Straw densification and silage baling in the Netherlands, Germany, and South Korea often runs at tight bale densities that push the chamber pressure — and therefore the gearbox output torque demand — close to or at maximum rated conditions. The EP246 handles this without a derating margin reduction, provided the matching PTO shaft and torque limiter are correctly specified for the total driveline.
Combine-harvester baling modules — increasingly common in Canadian and Australian grain operations — draw power from the harvester's on-board PTO in conditions where engine load is already significant. The EP246's efficient helical gear mesh keeps parasitic loss below 3% of input torque, leaving maximum available power at the bale chamber rather than dissipating it as heat inside the round baler gearbox equipment itself.
Agricultural equipment manufacturers building 80–120 hp class balers in Brazil, Colombia, and Europe source the EP246 as a verified, certified sub-assembly. The available CAD data package (DXF, STEP on request) and the ISO 9001:2015 certified production records simplify the OEM design integration and supply chain qualification processes, reducing time-to-production for new baler platform programmes.
Dealers and independent service workshops across the UK, Netherlands, and South Korea stock the EP246 as a round baler gearbox replacement for high-torque legacy units whose original parts are discontinued. Its dimensional match to Comer code equivalents and widely adopted 8×M14 flange interface means it drops into most legacy baler frames without additional machining, keeping agricultural operations moving during critical harvest windows.
System-Compatible Products — One-Stop Baling Drivetrain Supply
Specifying the EP246 round baler gearbox is only part of building a reliable baling drivetrain. The PTO shaft upstream and the complete baler machine downstream need to be matched in torque capacity, spline profile, and operating speed for the system to deliver its rated performance without premature wear or unexpected overload events. We manufacture both, so interface compatibility is guaranteed without cross-supplier design coordination.
The round baler pto shaft is the critical link between the tractor output and the EP246's input flange. Our matched PTO shafts come with CE-approved safety guarding, friction torque limiters pre-calibrated for the EP246's 2000 N·m torque class, and spline ends matched to ASAE and ISO tractor shaft standards. Sourcing the PTO shaft from the same supply point as the round baler gearbox eliminates the length and yoke mismatch issues that account for a disproportionate share of driveline failures in the field.
For operations requiring the full baling system rather than drivetrain components, our full series round baler catalogue includes machines with EP-series round baler gearboxes fitted and tested at the factory. Factory-integrated supply means warranty coverage, documentation, and aftersales parts logistics are managed through a single point of contact — particularly relevant for large agricultural operations in Brazil, Canada, and Australia where managing multiple supplier relationships across a harvest season creates meaningful overhead. The one-stop advantage extends across the entire round baler gearbox type range.
Trade & Delivery Conditions — EP246
High-value drive products like the EP246 round baler gearbox are assessed on total order value and configuration. Mixed-model orders can be consolidated to approximately USD 1,500. New customers evaluating the EP246 for a round baler gearbox replacement programme may request 1–5 sample units. Small one- or two-unit orders are supported, though unit pricing reflects the lower production batch size.
Standard EP246 (catalogue configuration): 20–45 working days. Custom specification (modified shaft profiles, dual-output conversion, special surface treatments): 45–75 working days. Sample / small-batch test orders (1–5 units): 7–25 working days. Confirmed lead times are issued at order acceptance.
Standard: FOB / CIF / DAP / EXW. Negotiable alternatives: FCA, CFR, CPT, CIP, DDP. For machinery-class shipments to the EU, Australia, Canada, and South Korea with specific customs clearance needs, trade term preference is best discussed at enquiry stage to minimise clearance delays.
1–5 sample units are available for new customers assessing the EP246 round baler gearbox for integration or replacement projects. Sample dispatch under EXW, FCA, or DAP. DDP sample delivery available on request for select destinations. Sample orders follow the 7–25 working day lead time window for standard configurations.
About Us — Ten-Plus Years in Agricultural & Industrial Power Transmission
Backed by over a decade of hands-on engineering experience, the facility produces a comprehensive range of mechanical transmission products covering agricultural gearboxes — including the full EP round baler gearbox line — worm gear reducers, planetary gear drives, power take-off shafts, hydraulic cylinders, roller chains, sprockets, and electric motors. Standard and non-standard configurations are both within scope, drawing on in-house machining, heat treatment, and gear-grinding capability rather than relying on external sub-suppliers for critical transmission components.
Manufacturing runs under ISO 9001:2015 certification. The material range covered across the factory spans ductile iron, grey cast iron, cast steel, precision cast steel, and cast aluminium — giving the design team material selection flexibility that matches the actual stress and corrosion requirements of each application rather than defaulting to a single material class. This extends to the full catalogue of gear and sprocket types: spur, helical, bevel, worm gears, belt pulleys, transmission shafts, and custom machined assemblies produced to client drawings or developed collaboratively during the design phase.
International agricultural equipment buyers across Australia, the United Kingdom, the Netherlands, Brazil, Canada, South Korea, and Colombia source from this facility on a repeat basis — both for catalogue round baler gearbox parts and for OEM-specific assemblies developed to project drawings. Technical documentation, drawing exchange in DXF and STEP formats, and application consultation are all part of the standard pre-order process, not an additional service.
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Frequently Asked Questions
What makes the EP246 round baler gearbox the best choice for commercial hay operations running variable-chamber balers in Australia and New Zealand?
How do I confirm whether the EP246 round baler gearbox is a direct replacement for an older Comer code unit on my European fixed-chamber baler?
How many HP does it actually take to pull a large round baler fitted with a high-torque gearbox like the EP246 in silage conditions in the UK or Netherlands?
Which round baler gearbox parts of the EP246 are most likely to need replacement after several seasons of intensive straw baling in Canada or South Korea?
Where can agricultural machinery importers in South Korea and Brazil source a reliable round baler gearbox for sale with full ISO certification and technical documentation?
Editor: PXY
