{"id":1900,"date":"2026-07-15T07:37:00","date_gmt":"2026-07-15T07:37:00","guid":{"rendered":"https:\/\/agricultural-gearbox.net\/?post_type=product&#038;p=1900"},"modified":"2026-07-15T08:43:33","modified_gmt":"2026-07-15T08:43:33","slug":"ep-gs4rc-30-hp-540-rpm-lawn-mower-gearbox","status":"publish","type":"product","link":"https:\/\/agricultural-gearbox.net\/fr\/product\/ep-gs4rc-30-hp-540-rpm-lawn-mower-gearbox\/","title":{"rendered":"EP-GS4RC 30 HP | 540 RPM Lawn Mower Gearbox"},"content":{"rendered":"<div style=\"width: 100%; max-width: 100%; min-width: 100%; font-family: Georgia,serif; color: #222; line-height: 1.75; box-sizing: border-box;\">\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: linear-gradient(135deg,#5a3000 0%,#a05a00 55%,#d4860a 100%); padding: 40px 24px 36px 24px; box-sizing: border-box; text-align: center;\">\n<p style=\"margin: 0 0 8px 0; color: #ffe5b0; letter-spacing: 2px; text-transform: uppercase;\">Heavy-Duty Agricultural Power Transmission<\/p>\n<h2 style=\"margin: 0 0 12px 0; color: #ffffff; font-family: 'Trebuchet MS',Arial,sans-serif; font-weight: 800; line-height: 1.25;\">EP-HC-GS4RC Lawn Mower Gearbox<\/h2>\n<p style=\"margin: 0 0 20px 0; color: #fdecd4;\">Dual Ratio | 30 HP | 540 RPM | 1 3\/8 Z6 Input | Taper Spline Output<\/p>\n<p><a style=\"display: inline-block; background: #ffffff; color: #5a3000; padding: 13px 34px; border-radius: 4px; text-decoration: none; font-weight: bold; letter-spacing: 1px;\" href=\"https:\/\/agricultural-gearbox.net\/fr\/product-category\/agricultural-gearbox\/lawn-mower-gearbox\/\">Lawn Mower Gearbox\u00a0<\/a><\/p>\n<\/div>\n<p><!-- Technical Specifications Table --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #ffffff; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 16px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">1. Technical Specifications of Lawn Mower Gearbox<\/h2>\n<p style=\"margin: 0 0 16px 0;\">The following engineering parameters are drawn from factory dimensional drawings and validated production data for the EP-HC-GS4RC <strong>lawn mower gearbox<\/strong>. Both ratio variants share the same housing and interface dimensions, simplifying inventory management for distributors stocking both configurations. Buyers sourcing this <strong>lawn mower gearbox<\/strong> for OEM production or aftermarket replacement will find that dimensional consistency across both variants eliminates the need for separate frame tooling or mounting hardware.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; box-sizing: border-box;\">\n<table style=\"width: 100%; min-width: 580px; border-collapse: collapse; table-layout: fixed;\">\n<thead>\n<tr style=\"background: linear-gradient(90deg,#5a3000 0%,#a05a00 100%);\">\n<th style=\"color: #fff; padding: 12px 14px; text-align: left; width: 36%;\">Param\u00e8tre<\/th>\n<th style=\"color: #fff; padding: 12px 14px; text-align: left; width: 32%;\">Variant A<\/th>\n<th style=\"color: #fff; padding: 12px 14px; text-align: left; width: 32%;\">Variant B<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Item \/ Model<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">EP-HC-GS4RC<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">EP-HC-GS4RC Lawn Mower Gearbox<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Gear Ratio<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">1 : 1.46<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">1 : 1.93<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Number of Teeth<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">22 \/ 15<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">23 \/ 12<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Gear Module<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">5.08<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">5.0<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Rated Power<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">30 HP<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">30 HP<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Rated Input Speed<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">540 RPM<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">540 RPM<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Output Speed (approx.)<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">788 RPM<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">1,042 RPM<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Gear Type<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Spiral Bevel<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Spiral Bevel<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Input Shaft<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">1 3\/8 Z6 Spline<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">1 3\/8 Z6 Spline<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Output Shaft<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Taper Spline<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Taper Spline<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Output Direction<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">90\u00b0 Right Angle<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">90\u00b0 Right Angle<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Net Weight<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">19 kg<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">19 kg<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Total Length<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">164 mm + 84 mm<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">164 mm + 84 mm<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Body Height<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">165 mm<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">165 mm<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Base Depth<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">125.4 mm<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">125.4 mm<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Input Shaft Length (from body)<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">38 mm<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">38 mm<\/td>\n<\/tr>\n<tr style=\"background: #fff5e6;\">\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Mat\u00e9riaux de construction<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Cast Iron HT200<\/td>\n<td style=\"padding: 10px 14px; border-bottom: 1px solid #f0d9b0;\">Cast Iron HT200<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 14px;\">Recommended Lubricant<\/td>\n<td style=\"padding: 10px 14px;\">GL-5 SAE 85W-140<\/td>\n<td style=\"padding: 10px 14px;\">GL-5 SAE 85W-140<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1902\" src=\"https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/07\/agricultural-gearbox-products-EP-GS4RC-30-HP-540-RPM-Lawn-Mower-Gearbox-draft.webp\" alt=\"agricultural-gearbox-products-EP-GS4RC 30 HP 540 RPM Lawn Mower Gearbox-draft\" width=\"1000\" height=\"500\" title=\"\" srcset=\"https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/07\/agricultural-gearbox-products-EP-GS4RC-30-HP-540-RPM-Lawn-Mower-Gearbox-draft.webp 1000w, https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/07\/agricultural-gearbox-products-EP-GS4RC-30-HP-540-RPM-Lawn-Mower-Gearbox-draft-980x490.webp 980w, https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/07\/agricultural-gearbox-products-EP-GS4RC-30-HP-540-RPM-Lawn-Mower-Gearbox-draft-480x240.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1000px, 100vw\" \/><!-- 5 Key Advantages --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #fffaf4; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 20px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">2. Five Key Product Advantages of Lawn Mower Gearbox<\/h2>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; display: flex; flex-wrap: wrap; gap: 16px; box-sizing: border-box;\">\n<div style=\"flex: 1 1 260px; background: linear-gradient(135deg,#fff5e6,#fffaf4); border-left: 4px solid #5a3000; border-radius: 5px; padding: 18px 16px; box-sizing: border-box;\">\n<p><strong style=\"color: #5a3000;\">\u2713 Dual Ratio \u2014 One Platform, Two Applications<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">The EP-HC-GS4RC <strong>lawn mower gearbox<\/strong> is available in 1:1.46 and 1:1.93 gear ratios, both sharing identical housing dimensions, shaft interfaces, and mounting bolt patterns. This means a single approved part number covers two distinct mowing speed requirements \u2014 lighter rotary mowing at 788 RPM output or heavier vegetation cutting at 1,042 RPM \u2014 without any physical modifications to the mower frame or PTO shaft connection. For repair workshops and OEM procurement teams, dual-ratio availability on a common housing platform simplifies stock management significantly.<\/p>\n<\/div>\n<div style=\"flex: 1 1 260px; background: linear-gradient(135deg,#fff5e6,#fffaf4); border-left: 4px solid #a05a00; border-radius: 5px; padding: 18px 16px; box-sizing: border-box;\">\n<p><strong style=\"color: #5a3000;\">\u2713 Large-Module Bevel Gears for 30 HP Endurance<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">Both gear sets in this unit operate with modules of 5.08 and 5.0 \u2014 substantially larger tooth cross-sections than those used in lower-rated <strong>mower deck gearbox<\/strong> designs. Larger module gears distribute contact load across a wider tooth face, significantly reducing root bending stress and contact fatigue under the sustained high-torque input conditions typical of heavy agricultural mowing. The result is a unit engineered for long service intervals without the premature gear pitting or tooth root cracking that shorter tooth profiles suffer under equivalent loads.<\/p>\n<\/div>\n<div style=\"flex: 1 1 260px; background: linear-gradient(135deg,#fff5e6,#fffaf4); border-left: 4px solid #5a3000; border-radius: 5px; padding: 18px 16px; box-sizing: border-box;\">\n<p><strong style=\"color: #5a3000;\">\u2713 Taper Spline Output for Positive Blade Drive<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">Unlike straight parallel-bore couplings that depend purely on friction and fastener preload, the taper spline output shaft of this <strong>gearbox for lawn mower<\/strong> applications generates a self-tightening interference fit as the retaining nut is torqued. This design eliminates micro-slip between shaft and blade hub under reverse-torque pulses \u2014 which occur whenever the cutting blades decelerate through dense vegetation or stone strikes. The absence of fretting reduces spline wear rates, supporting longer hub and shaft service life across demanding field seasons.<\/p>\n<\/div>\n<div style=\"flex: 1 1 260px; background: linear-gradient(135deg,#fff5e6,#fffaf4); border-left: 4px solid #a05a00; border-radius: 5px; padding: 18px 16px; box-sizing: border-box;\">\n<p><strong style=\"color: #5a3000;\">\u2713 Compact 19 kg Build for Wide Frame Compatibility<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">At 19 kg, the EP-HC-GS4RC achieves its 30 HP power handling in a weight-optimised package. The overall body length of 164 mm plus 84 mm input shaft extension, combined with a 165 mm height and 125.4 mm base depth, fits within the envelope of a broad range of commercially available disc mower frames and rotary cutter heads \u2014 including compact inter-row mowers used in orchard and vineyard environments. Reduced mass also eases the load on tractor three-point hitch systems during transport, particularly relevant for smaller tractors in the 60\u201380 HP bracket.<\/p>\n<\/div>\n<div style=\"flex: 1 1 260px; background: linear-gradient(135deg,#fff5e6,#fffaf4); border-left: 4px solid #5a3000; border-radius: 5px; padding: 18px 16px; box-sizing: border-box;\">\n<p><strong style=\"color: #5a3000;\">\u2713 Universal 1 3\/8 Z6 PTO Input \u2014 Global Standard<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">The 1 3\/8 Z6 splined input shaft is the globally recognised standard for tractor PTO-driven attachments, as defined by ASABE S205 and the equivalent ISO 500 standard. This means the EP-HC-GS4RC Lawn Mower Gearbox connects to the PTO output of virtually every 540 RPM-capable tractor without requiring adapters, custom yokes, or shaft rework. From Brazilian beef cattle operations running Massey Ferguson or New Holland tractors to European farming cooperatives using Fendt or John Deere equipment, the 1 3\/8 Z6 interface ensures immediate, tool-free coupling compatibility.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Working Principle --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #ffffff; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 14px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">3. How the EP-HC-GS4RC Lawn Mower Gearbox Works<\/h2>\n<p style=\"margin: 0 0 14px 0;\">Rotational power enters the EP-HC-GS4RC <strong>lawn mower gearbox<\/strong> via the 1 3\/8 Z6 splined input shaft, which connects to the tractor&#8217;s 540 RPM rear PTO output. The spline form distributes torsional load evenly across all tooth flanks, avoiding the stress concentration that would arise with a keyed or single-flat shaft connection under 30 HP peak torque conditions. This is particularly important during initial blade engagement, when rotational inertia means the gearbox momentarily absorbs the full acceleration torque before the system reaches steady-state running.<\/p>\n<p style=\"margin: 0 0 14px 0;\">Inside the cast iron housing, a matched spiral bevel pinion and crown gear pair redirects the power flow by 90 degrees \u2014 the fundamental requirement of any <strong>right angle gearbox for lawn mower<\/strong> applications. The spiral tooth form ensures that multiple teeth are always in contact simultaneously, spreading load and reducing the peak contact stress per tooth. In the 1:1.46 ratio variant, the 22\/15 tooth combination delivers approximately 788 RPM at the output shaft; the 1:1.93 variant using the 23\/12 tooth pair steps output up to approximately 1,042 RPM \u2014 a speed range appropriate for rotary blade mowing across a variety of crop residues and grass densities.<\/p>\n<p style=\"margin: 0 0 14px 0;\">Power exits through the taper spline output shaft, where it drives the mower blade hub or disc spindle directly. The gear housing is lubricated by a splash oil bath system \u2014 the rotating crown gear scoops oil from the sump and distributes it across gear contact surfaces and bearing races. Both ratio variants of this <strong>lawn mower gearbox<\/strong> require GL-5 SAE 85W-140 gear oil, appropriate for the operating temperatures generated in sustained mowing under tropical or subtropical field conditions common in Brazil, northern Australia, and Central America.<\/p>\n<p style=\"margin: 0 0 0 0;\">Preloaded tapered roller bearings at each shaft position maintain precise gear mesh geometry over the full service life of the unit, controlling axial play and ensuring the spiral bevel contact pattern remains within the designed tooth face area even as bearing races and gear flanks wear gradually with accumulated operating hours.<\/p>\n<\/div>\n<p><!-- Materials Section --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #fffaf4; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 14px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">4. Materials &amp; Construction of Lawn Mower Gearbox<\/h2>\n<p style=\"margin: 0 0 14px 0;\">Material selection in the EP-HC-GS4RC Lawn Mower Gearbox reflects the operating realities of PTO-driven mowing in agricultural field environments \u2014 a context where abrasive crop dust, chemical fertiliser residues, mechanical shock from blade strikes, and temperature cycling from cold-start to sustained running load all degrade components far faster than laboratory fatigue testing would predict. Every material choice is calibrated for this environment.<\/p>\n<p style=\"margin: 0 0 14px 0;\"><strong>Housing:<\/strong> The main body and mounting flange are cast in grey iron conforming to HT200 grade. HT200 offers a tensile strength of 200 MPa with significantly better vibration damping than steel or aluminium alternatives, reducing the transmission of gear mesh noise into the mower frame and tractor cab. The material&#8217;s machinability allows tight bore tolerances at bearing seats \u2014 critical for maintaining accurate bearing preload and predictable gear contact geometry over the life of the gearbox.<\/p>\n<p style=\"margin: 0 0 14px 0;\"><strong>Gear Set:<\/strong> Both bevel gear pairs are manufactured from 20CrMnTi alloy steel. After rough cutting and turning, gears undergo gas carburizing and case hardening to achieve a surface hardness of 58\u201362 HRC with a case depth of 0.8\u20131.2 mm. This combination of hard surface and tough core allows the tooth flanks to resist pitting and micropitting under high Hertzian contact stress, while the core absorbs the impact loading from stone strikes or sudden overload events without brittle fracture. Post-hardening gear grinding achieves DIN quality class 6 or better, supporting quiet, smooth meshing across both ratio configurations.<\/p>\n<p style=\"margin: 0 0 14px 0;\"><strong>Shafts:<\/strong> The 1 3\/8 Z6 input shaft and taper spline output shaft are both produced from 42CrMo alloy steel, quenched and tempered to 28\u201334 HRC. This provides the combination of torsional strength and fatigue resistance needed to transmit 30 HP continuously while absorbing torsional shock pulses \u2014 the kind generated when PTO-driven blades encounter embedded rocks, tree stumps, or dense weed clumps at operating speed.<\/p>\n<p style=\"margin: 0 0 0 0;\"><strong>Bearings and Seals:<\/strong> Tapered roller bearings at all shaft positions handle the combined radial and axial loads generated by spiral bevel gear separation forces. Bearing positions are sealed with lip seals providing IP54-equivalent ingress protection against dust, splash water, and crop debris, all of which are present in the airstream around operating mower decks. This seal arrangement is a prerequisite for long service life in the aggressive field environments typical of <strong>agricultural lawn mower gearbox<\/strong> applications.<\/p>\n<\/div>\n<p><!-- Application Scenarios --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #ffffff; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 18px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">5. Application Scenarios of Lawn Mower Gearbox<\/h2>\n<p style=\"margin: 0 0 20px 0;\">The EP-HC-GS4RC is designed for heavy-duty mowing applications where 30 HP PTO input capacity, dual-ratio flexibility, and taper spline blade drive are required. Below are the primary deployment contexts where this <strong>lawn mower gearbox<\/strong> delivers consistent performance across demanding field conditions.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; display: flex; flex-wrap: wrap; gap: 16px; box-sizing: border-box;\">\n<div style=\"flex: 1 1 220px; background: #fff5e6; border-radius: 6px; padding: 18px 16px; box-sizing: border-box; border-top: 3px solid #5a3000;\">\n<p><strong style=\"color: #5a3000;\">Tropical Pasture Renovation \u2014 Brazil &amp; Latin America<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">Beef and dairy operations across Brazil&#8217;s Cerrado, Pantanal, and Atlantic Forest transition zones regularly face the need to cut dense tropical grass regrowth, invasive shrub species, and weed infestations before pasture renovation. The 1:1.93 ratio variant of the EP-HC-GS4RC provides the blade torque needed to cut through thick-stemmed vegetation without stalling, while the 30 HP capacity sustains multi-hour daily mowing cycles on large estate properties without overloading the gearbox. As a trusted <strong>lawnmower drive gearbox<\/strong> for South American operations, the unit&#8217;s taper spline output resists the shock loads generated by blade contact with embedded roots and termite mounds prevalent in Brazilian pasture soil.<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #fff5e6; border-radius: 6px; padding: 18px 16px; box-sizing: border-box; border-top: 3px solid #a05a00;\">\n<p><strong style=\"color: #5a3000;\">Highway Verge &amp; Roadside Vegetation Management<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">Municipal road authorities and civil infrastructure maintenance contractors in Europe, Southeast Asia, and the Middle East deploy PTO-driven flail and disc mowers for highway verge clearance. These machines must sustain continuous high-speed mowing across grass, herbaceous weeds, and light woody regrowth for extended daily cycles, often using offset mower configurations where the <strong>right angle gearbox<\/strong> must handle angular misalignment loads in addition to torque. The EP-HC-GS4RC Lawn Mower Gearbox&#8217;s robust HT200 cast iron housing and large-module gear set make it well suited to these conditions.<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #fff5e6; border-radius: 6px; padding: 18px 16px; box-sizing: border-box; border-top: 3px solid #5a3000;\">\n<p><strong style=\"color: #5a3000;\">Orchard &amp; Vineyard Row Management<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">Fruit growers in France, Italy, Spain, Argentina, Chile, and South Africa rely on compact PTO mowers to manage ground cover between tree and vine rows. These machines require a <strong>lawn mower gearbox<\/strong> with a compact footprint to fit within the limited clearance between rows, combined with enough power capacity to handle the mixed ground cover \u2014 grass, weeds, pruning residue, and small stones \u2014 typical of orchard floors. The EP-HC-GS4RC Lawn Mower Gearbox&#8217;s 19 kg compact envelope and dual-ratio availability make it a practical fit for this demanding inter-row application.<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #fff5e6; border-radius: 6px; padding: 18px 16px; box-sizing: border-box; border-top: 3px solid #a05a00;\">\n<p><strong style=\"color: #5a3000;\">Sports Turf &amp; Amenity Grassland Management<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">Golf clubs, racecourses, and large sports venue operators in East Asia, the Middle East, and Oceania maintain extensive rough areas and boundary grassland using PTO-driven rotary mowers. The 1:1.46 ratio variant of this <strong>lawn mower 90 degree gearbox<\/strong> delivers output speeds suitable for coarser turf management where cut quality across large unmanicured areas is the priority. The unit&#8217;s low vibration spiral bevel gear set also reduces operator fatigue compared with older straight-cut bevel designs.<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #fff5e6; border-radius: 6px; padding: 18px 16px; box-sizing: border-box; border-top: 3px solid #5a3000;\">\n<p><strong style=\"color: #5a3000;\">OEM Mower Production &amp; Aftermarket Replacement Supply<\/strong><\/p>\n<p style=\"margin: 8px 0 0 0;\">Agricultural machinery manufacturers in Germany, Italy, France, India, and Australia specify the EP-HC-GS4RC Lawn Mower Gearbox as a primary drive unit in new 30 HP-class disc mowers and rotary cutters, benefiting from its standardised interface dimensions and globally available technical documentation. The same unit also serves the <strong>agricultural lawn mower gearbox replacement<\/strong> market \u2014 repair workshops across Europe and South America stock it as a compatible replacement for several European OEM gearboxes in the 28\u201332 HP power bracket where original parts have become discontinued or carry excessive lead times.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Regulatory Compliance --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #fffaf4; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 14px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">6. Regulatory Compliance &amp; Global Standards<\/h2>\n<p style=\"margin: 0 0 14px 0;\">Buyers sourcing the EP-HC-GS4RC Lawn Mower Gearbox for use in specific regional markets should be aware of the following regulatory frameworks that govern PTO-driven agricultural machinery components and gearboxes in those territories.<\/p>\n<p style=\"margin: 0 0 14px 0;\"><strong>European Union:<\/strong> The EU Machinery Directive 2006\/42\/EC requires that gearboxes supplied as components for integration into machinery be accompanied by a Declaration of Incorporation and a Technical Construction File. Relevant harmonised standards include EN ISO 4254-1 (general agricultural machinery safety), EN 1152 (PTO shaft guarding), and EN ISO 11684 (safety signs). OEMs building CE-marked mowers in Europe must obtain this documentation from their gearbox supplier as part of their conformity assessment process.<\/p>\n<p style=\"margin: 0 0 14px 0;\"><strong>Brazil:<\/strong> Agricultural machinery imports into Brazil are subject to oversight by ABNT (Associa\u00e7\u00e3o Brasileira de Normas T\u00e9cnicas), INMETRO, and MAPA (Ministry of Agriculture, Livestock and Food Supply). PTO-driven equipment safety falls under Portaria No. 35\/2011 of the Ministry of Labour (MTE), which sets guarding requirements for rotating PTO drive components on tractors and their attachments. Brazilian importers should verify SISCOMEX HS code classification (typically 8483.40.xx) and confirm applicable MAPA registration requirements before placing international procurement orders.<\/p>\n<p style=\"margin: 0 0 14px 0;\"><strong>United States:<\/strong> OSHA 29 CFR Part 1928 (Agricultural Operations) sets federal requirements for PTO drive shaft guarding. ASABE standard S205 defines the 1 3\/8 Z6 spline dimensions used on the EP-HC-GS4RC input shaft, confirming compatibility with North American PTO standards. State-level agricultural equipment regulations in California and other states may impose additional labelling or emissions-adjacent documentation requirements for engine-driven systems packaged with this gearbox.<\/p>\n<p style=\"margin: 0 0 0 0;\"><strong>Australia &amp; New Zealand:<\/strong> Safe Work Australia&#8217;s Model WHS Regulations and AS\/NZS 4024.3601 govern guarding requirements for agricultural machinery power transmission components. Importers into Australia must confirm DAFF biosecurity declaration requirements and verify HS tariff classification for agricultural mechanical components. The tractor PTO drive configuration used with this gearbox also falls under the scope of AS 1418 and relevant state-level farm safety legislation administered by SafeWork NSW, WorkSafe Victoria, and equivalent authorities.<\/p>\n<\/div>\n<p><!-- About Us --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #ffffff; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 14px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">7. About Us<\/h2>\n<p style=\"margin: 0 0 14px 0;\">We are a dedicated <strong>Lawn Mower Gearbox Manufacturer<\/strong> with decades of accumulated engineering expertise in right angle bevel gear drives, PTO-driven driveline assemblies, and agricultural power transmission systems. Our manufacturing capabilities span the full production chain: alloy steel procurement and chemical verification, CNC gear hobbing and grinding, gas carburizing and induction hardening, housing boring and assembly, and final dimensional inspection and function testing before shipment.<\/p>\n<p style=\"margin: 0 0 14px 0;\">Our ISO 9001:2015-certified quality management system governs every production stage of <strong>lawn mower gearbox<\/strong> production.<\/p>\n<h3 style=\"margin: 28px 0px 12px; color: #5a3000; text-align: center;\">WorkShop<\/h3>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; box-sizing: border-box;\">\n<div style=\"display: flex; flex-direction: row; gap: 14px; min-width: 600px; padding-bottom: 10px;\"><img decoding=\"async\" style=\"width: 240px; height: 160px; object-fit: cover; border-radius: 5px; flex-shrink: 0;\" src=\"https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/02\/agricultural-gearbox-factory.webp\" alt=\"Agricultural Gearbox Factory\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"width: 240px; height: 160px; object-fit: cover; border-radius: 5px; flex-shrink: 0;\" src=\"https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/01\/agricultural-gearbox-factory.webp\" alt=\"Lawn Mower Gearbox Workshop\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"width: 240px; height: 160px; object-fit: cover; border-radius: 5px; flex-shrink: 0;\" src=\"https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/01\/agricultural-gearbox-Soil-Crusher-Gearbox.webp\" alt=\"Gearbox Production Line\" title=\"\"><\/div>\n<\/div>\n<\/div>\n<p><!-- Related Products --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #fffaf4; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 18px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">8. Compatible Drive System Components<\/h2>\n<p style=\"margin: 0 0 20px 0;\">The EP-HC-GS4RC <strong>lawn mower gearbox<\/strong> is designed to operate as part of a complete PTO-driven mowing driveline. To support one-stop sourcing and eliminate interface compatibility risks, we connect customers with the key upstream and downstream components required for a fully integrated mowing system.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; display: flex; flex-wrap: wrap; gap: 18px; box-sizing: border-box;\">\n<div style=\"flex: 1 1 280px; background: #ffffff; border-radius: 6px; padding: 20px 16px; box-sizing: border-box; border-top: 3px solid #5a3000;\">\n<p><strong style=\"color: #5a3000;\">PTO Drive Shaft<\/strong><\/p>\n<p style=\"margin: 8px 0 12px 0;\">A telescoping PTO shaft rated at 35 HP minimum with 1 3\/8 Z6 yoke ends is required to connect the tractor PTO to the EP-HC-GS4RC input. Shafts should incorporate shear bolt or friction clutch overload protection to shield the gearbox from peak torque spikes during blade strike events. Correct shaft length and operating angle selection ensures that the cardan joints in the shaft run within their designed angular working range, avoiding premature cross journal wear during field operation.<\/p>\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 4px; margin-top: 8px;\" src=\"https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/01\/agricultural-gearbox-related-products-pto-shaft-1.webp\" alt=\"PTO Shaft for Lawn Mower Gearbox\" title=\"\"><\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #ffffff; border-radius: 6px; padding: 20px 16px; box-sizing: border-box; border-top: 3px solid #a05a00;\">\n<p><strong style=\"color: #5a3000;\">Lawn Mower Equipment<\/strong><\/p>\n<p style=\"margin: 8px 0 12px 0;\">For customers designing or completing a full mowing system, we connect you with <a href=\"https:\/\/straw-balers.com\/product-category\/lawn-mower\/\" target=\"_blank\" rel=\"noopener\">PTO-driven disc mowers<\/a>, rotary cutters, and flail mower heads that are dimensionally matched to the EP-HC-GS4RC mounting flange and taper spline output shaft specification. Selecting a mower deck with a correctly bored blade hub for taper spline coupling ensures secure drive retention across the full range of blade loads encountered in the field \u2014 from light grass mowing to heavy tropical pasture renovation work.<\/p>\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 4px; margin-top: 8px;\" src=\"https:\/\/agricultural-gearbox.net\/wp-content\/uploads\/2026\/07\/agricultural-gearbox-related-products-lawn-mower.webp\" alt=\"Lawn Mower Compatible with GS4RC Gearbox\" title=\"\"><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Customer Reviews --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #ffffff; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 20px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">9. Customer Field Notes<\/h2>\n<div style=\"background: #fff5e6; border-radius: 6px; padding: 22px 20px; margin-bottom: 18px; border-left: 5px solid #5a3000; box-sizing: border-box;\">\n<p style=\"margin: 0 0 6px 0; color: #555;\"><strong>Country:<\/strong> Brazil (Para State) \u00a0|\u00a0 <strong>Sector:<\/strong> Large-Scale Cattle Ranching &amp; Pasture Management<\/p>\n<p style=\"margin: 0 0 10px 0; color: #555;\"><strong>Procurement Purpose:<\/strong> Primary drive gearbox specification for a fleet of six new-build 30 HP PTO disc mowers deployed across a 5,000-hectare operation in the Brazilian Amazon frontier<\/p>\n<p style=\"margin: 0 0 0 0; font-style: italic; color: #333;\">&#8220;We were specifying drive gearboxes for a batch of mowers being built in-house for our pasture renovation programme. The EP-HC-GS4RC was selected because it offered the 1:1.93 ratio we needed for tropical grass cutting and the 30 HP capacity to run continuously behind our 90 HP tractors. The taper spline output was a deliberate choice \u2014 we have had issues with blade hub fretting on parallel-bore units in previous mower builds and wanted to avoid that on this fleet. After two seasons of operation across some very demanding ground, including fields with significant laterite stone content, we have had zero blade hub or output shaft failures. The dimensional drawings provided were accurate and matched the physical units, which made the mower frame design process straightforward.&#8221;<\/p>\n<\/div>\n<div style=\"background: #fdf5e8; border-radius: 6px; padding: 22px 20px; border-left: 5px solid #a05a00; box-sizing: border-box;\">\n<p style=\"margin: 0 0 6px 0; color: #555;\"><strong>Country:<\/strong> France (Nouvelle-Aquitaine) \u00a0|\u00a0 <strong>Sector:<\/strong> Agricultural Machinery Import &amp; Spare Parts Distribution<\/p>\n<p style=\"margin: 0 0 10px 0; color: #555;\"><strong>Procurement Purpose:<\/strong> Aftermarket stock for European OEM 30 HP PTO mower gearbox replacement demand across southwest France<\/p>\n<p style=\"margin: 0 0 0 0; font-style: italic; color: #333;\">&#8220;We distribute spare parts and replacement drives to cooperative farms and independent repair workshops in the Nouvelle-Aquitaine and Occitanie regions, which have significant beef cattle and wine production. The EP-HC-GS4RC fits several mower frames from European manufacturers that we service regularly, and the 1:1.46 ratio variant in particular matches the output configuration we need for the disc mower models most common in our customer base. The gear meshing quality has been consistent across all deliveries \u2014 we have not had a single customer complaint about noise or premature wear since we started stocking this unit. &#8220;<\/p>\n<\/div>\n<\/div>\n<p><!-- FAQ Section --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #fffaf4; padding: 34px 24px; box-sizing: border-box;\">\n<h2 style=\"margin: 0 0 20px 0; color: #5a3000; font-family: 'Trebuchet MS',Arial,sans-serif;\">Foire aux questions<\/h2>\n<div style=\"border-bottom: 1px solid #f0d9b0; padding: 14px 0;\">\n<details>\n<summary style=\"cursor: pointer; font-weight: bold; color: #5a3000; list-style: none; padding: 4px 0;\">Q1. What tractor horsepower range is the EP-HC-GS4RC lawn mower gearbox designed to work with for PTO-driven mowing in Brazil?<\/summary>\n<p style=\"margin: 10px 0 4px 16px;\">The EP-HC-GS4RC is rated for 30 HP continuous PTO input at 540 RPM, making it compatible with tractors in the 60\u2013120 HP class. In Brazil, where mowing operations typically use Massey Ferguson, New Holland, or Valtra tractors in the 75\u2013100 HP range, this gearbox fits directly without adapters. For tropical conditions in Para, Mato Grosso, or Goias states, we recommend using GL-5 SAE 85W-140 gear oil to maintain adequate oil film viscosity at elevated ambient temperatures.<\/p>\n<\/details>\n<\/div>\n<div style=\"border-bottom: 1px solid #f0d9b0; padding: 14px 0;\">\n<details>\n<summary style=\"cursor: pointer; font-weight: bold; color: #5a3000; list-style: none; padding: 4px 0;\">Q2. Where can I source a 30 HP agricultural lawn mower gearbox replacement that fits European OEM mower frames without modification?<\/summary>\n<p style=\"margin: 10px 0 4px 16px;\">The EP-HC-GS4RC Lawn Mower Gearbox is dimensioned to align with mower head configurations common in European 28\u201332 HP disc mower designs. Our technical team can review your existing gearbox dimensional drawing and confirm fitment before you commit to an order. Most customers in Germany, France, and Italy have been able to install the unit without any frame machining, reducing workshop time per replacement significantly.<\/p>\n<\/details>\n<\/div>\n<div style=\"border-bottom: 1px solid #f0d9b0; padding: 14px 0;\">\n<details>\n<summary style=\"cursor: pointer; font-weight: bold; color: #5a3000; list-style: none; padding: 4px 0;\">Q3. What are the correct gear oil specification and service intervals for the EP-HC-GS4RC right angle gearbox for lawn mower applications?<\/summary>\n<p style=\"margin: 10px 0 4px 16px;\">Use GL-5 SAE 85W-140 gear oil for ambient temperatures between 0\u00b0C and 45\u00b0C \u2014 appropriate for tropical and subtropical operating environments. Check oil level before each seasonal start. Change oil annually or every 200\u2013250 operating hours, whichever comes first. In very hot climates above 40\u00b0C average, consider more frequent changes or a higher viscosity gear oil to maintain adequate film thickness at peak operating temperature.<\/p>\n<\/details>\n<\/div>\n<div style=\"border-bottom: 1px solid #f0d9b0; padding: 14px 0;\">\n<details>\n<summary style=\"cursor: pointer; font-weight: bold; color: #5a3000; list-style: none; padding: 4px 0;\">Q4. How does the taper spline output shaft on this lawn mower gearbox compare to a straight parallel-bore coupling in field durability?<\/summary>\n<p style=\"margin: 10px 0 4px 16px;\">A taper spline generates axial clamping force between shaft and hub when the retaining nut is tightened, creating an interference fit that eliminates micro-slip under reverse-torque events. Parallel-bore couplings rely on friction and fastener preload alone, which degrades under the repeated positive and reverse torque cycles of rotary mowing. The result is that taper spline connections typically last two to three times longer before hub or shaft spline wear requires replacement in heavy mowing applications.<\/p>\n<\/details>\n<\/div>\n<div style=\"border-bottom: 1px solid #f0d9b0; padding: 14px 0;\">\n<details>\n<summary style=\"cursor: pointer; font-weight: bold; color: #5a3000; list-style: none; padding: 4px 0;\">Q5. When is the EP-HC-GS4RC the right choice compared to a self propelled lawn mower gearbox or a ride on lawn mower gearbox configuration?<\/summary>\n<p style=\"margin: 10px 0 4px 16px;\">The EP-HC-GS4RC Lawn Mower Gearbox is a PTO-driven right angle step-up gearbox for tractor-mounted mowing attachments. A <strong>self propelled lawn mower gearbox<\/strong> is a different product category \u2014 it includes a wheel-drive reduction output for propelling the mowing machine under its own power. Similarly, a <strong>ride on lawn mower gearbox<\/strong> typically integrates transmission and blade drive functions in a single unit for a dedicated ride-on machine. If your application is a tractor PTO-driven disc mower or rotary cutter, the EP-HC-GS4RC is the appropriate product.<\/p>\n<\/details>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Meta Description (copy below) --><\/p>\n<p style=\"text-align: right;\">\u00c9diteur : PXY<\/p>","protected":false},"excerpt":{"rendered":"<p>The EP-HC-GS4RC lawn mower gearbox is a precision-engineered right angle bevel gear drive purpose-built for demanding PTO-driven mowing systems rated at 30 HP. Derived from the proven HC-GS4RC platform, this unit is offered in two gear ratio configurations \u2014 1:1.46 and 1:1.93 \u2014 enabling equipment designers and procurement engineers to select the output speed and torque profile best suited to their specific mower application without changing the housing, shaft interface, or mounting geometry.<\/p>\n<p>With a 1 3\/8 Z6 splined input shaft and a taper spline output shaft, the EP-HC-GS4RC integrates cleanly into standard tractor PTO-driven mowing systems worldwide. The taper spline output \u2014 a more secure coupling geometry than parallel spline alternatives \u2014 provides positive mechanical engagement with the blade hub, resisting the micro-slip and fretting wear that accumulates over repeated reverse-torque cycles during high-inertia blade operations.<\/p>","protected":false},"featured_media":1901,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2314],"product_tag":[],"class_list":["post-1900","product","type-product","status-publish","has-post-thumbnail","product_cat-lawn-mower-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/product\/1900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/comments?post=1900"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/media\/1901"}],"wp:attachment":[{"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/media?parent=1900"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/product_brand?post=1900"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/product_cat?post=1900"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/agricultural-gearbox.net\/fr\/wp-json\/wp\/v2\/product_tag?post=1900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}