{"id":1456,"date":"2026-03-26T07:45:31","date_gmt":"2026-03-26T07:45:31","guid":{"rendered":"https:\/\/mowergearbox.top\/product\/ep-ag135-lawn-mower-gearbox\/"},"modified":"2026-03-26T07:45:48","modified_gmt":"2026-03-26T07:45:48","slug":"ep-ag135-lawn-mower-gearbox","status":"publish","type":"product","link":"https:\/\/mowergearbox.top\/sv\/product\/ep-ag135-lawn-mower-gearbox\/","title":{"rendered":"EP-AG135 Lawn Mower Gearbox"},"content":{"rendered":"
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Built to Last: EP-AG135 Agricultural Rotary Cutter Gearbox<\/h2>\n

The EP-AG135<\/strong> is built for the operator who values uptime above all else. This agricultural gearbox<\/a> handles 50 hk<\/strong> through precision-machined spiral bevel gears, supported by premium bearings and multi-stage sealing for maximum service life.<\/p>\n

\"EP-AG135<\/div>\n

📈 EP-AG135 Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Model Number<\/td>\nEP-AG135<\/td>\n<\/tr>\n
Gearbox Type<\/td>\nAgricultural Rotary Cutter Gearbox<\/td>\n<\/tr>\n
Gear Ratio(s)<\/td>\n1:1<\/td>\n<\/tr>\n
Teeth Configuration<\/td>\n20\/20<\/td>\n<\/tr>\n
Gear Module<\/td>\n6.0<\/td>\n<\/tr>\n
Rated Power<\/td>\n50 hk<\/td>\n<\/tr>\n
Input Speed<\/td>\n540 rpm<\/td>\n<\/tr>\n
Input\/Output Shaft<\/td>\n1 3\/8 Z6, Cone base aequilate spline shaft<\/td>\n<\/tr>\n
Net Weight<\/td>\n16.5 Kg<\/td>\n<\/tr>\n
Gear Material<\/td>\n20CrMnTi Alloy Steel, Carburized & Hardened HRC 58-62<\/td>\n<\/tr>\n
Housing Material<\/td>\nGrey Cast Iron (HT200\/HT250)<\/td>\n<\/tr>\n
Seal Protection<\/td>\nMulti-Lip NBR\/FKM Oil Seals, IP65+ Rated<\/td>\n<\/tr>\n
Lubrication<\/td>\nSAE 80W-90 or 85W-140 EP Gear Oil<\/td>\n<\/tr>\n
Surface Treatment<\/td>\nE-Coat Primer + Polyester Powder Coat, Red Finish<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

⭐ Key Features & Engineering Advantages<\/h2>\n
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🔬<\/p>\n

Multi-Position Bolt Pattern<\/h4>\n

Versatile mounting interface with tapped holes at 0\u00b0, 90\u00b0, and 180\u00b0 orientations, fitting a wide range of implement frame geometries without adapter plates.<\/p>\n<\/div>\n

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⚖<\/p>\n

E-Coat + Powder Coat Finish<\/h4>\n

25 \u03bcm zinc-rich e-coat primer plus 80 \u03bcm polyester powder topcoat provides 1,000+ hours of ASTM B117 salt-spray corrosion resistance.<\/p>\n<\/div>\n

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🚀<\/p>\n

Heavy-Duty Triple-Lip Seals + Scraper<\/h4>\n

Three-lip shaft seals with external scraper rings prevent soil and moisture ingress even during tillage in waterlogged or heavily saturated ground.<\/p>\n<\/div>\n

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💪<\/p>\n

Dedicated Thrust Bearing Stage<\/h4>\n

Purpose-designed thrust bearings absorb the axial forces generated as tiller blades engage the soil, preventing shaft walk and premature seal extrusion.<\/p>\n<\/div>\n

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⚙<\/p>\n

Stainless Steel Breather Valve<\/h4>\n

Labyrinthed breather prevents pressure build-up during temperature swings while blocking water and dust ingress \u2014 a common failure point in cheaper gearboxes.<\/p>\n<\/div>\n

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⚗<\/p>\n

CNC-Bored Bearing Seats, IT6 Tolerance<\/h4>\n

All bearing bores finish-bored to ISO IT6 on CNC horizontal boring mills, ensuring perfect bearing fit and eliminating the fretting corrosion caused by loose seats.<\/p>\n<\/div>\n<\/div>\n

\"Mower<\/div>\n

🔧 Equipment Compatibility & Cross-Reference<\/h2>\n
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🔄 Cross-Reference Compatibility for EP-AG135<\/h3>\n

The EP-AG135 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:<\/p>\n

Fella • Sonalika • Branson • Dongfeng • John Deere • AGCO • Rhino • LS Tractor<\/p>\n

Disclaimer: Brand names above are referenced solely for compatibility identification. Ever-power Australia Mower Gearbox Co.,Ltd. is not affiliated with, endorsed by, or authorized by any listed manufacturer. All trademarks belong to their respective owners.<\/p>\n<\/div>\n

📚 Gearbox Selection Guide<\/h2>\n

The EP-AG135 covers a specific performance envelope. Use these selection criteria to verify it aligns with your operational parameters:<\/p>\n

\n📌 Output Shaft Type Compatibility<\/summary>\n
The EP-AG135 features 1 3\/8 Z6, Cone base aequilate spline shaft output. Verify your blade hub or implement rotor accepts this shaft type before ordering. We offer multiple output configurations \u2014 spline, taper, keyway, and flange \u2014 to match virtually any existing installation.<\/div>\n<\/details>\n
\n📌 Weight and Mounting Considerations<\/summary>\n
At 16.5 Kg, the EP-AG135 is designed for mid-size utility tractor attachments. Confirm your implement frame and three-point hitch can support this weight plus the weight of the blade assembly. Mounting bolt pattern and orientation should match your existing layout.<\/div>\n<\/details>\n
\n📌 Matching Gear Ratio to Blade Tip Speed<\/summary>\n
For the EP-AG135 with ratio(s) 1:1, calculate your required blade tip speed: typically 4,500-5,500 m\/min for standard rotary cutters, 3,000-4,000 m\/min for heavy brush cutting, and 5,500-6,500 m\/min for fine finish mowing. Output RPM = PTO RPM \u00f7 ratio. Multiply by blade diameter to get tip speed.<\/div>\n<\/details>\n
\n📌 Sizing Power Rating to Tractor PTO HP<\/summary>\n
The EP-AG135 is rated at 50 HP. Always select a gearbox rated at or above your tractor’s maximum PTO horsepower. For shock-load applications (mulching, brush clearing), add a 25-30% safety margin: a 60 HP tractor should use a 75+ HP rated gearbox.<\/div>\n<\/details>\n
\n📌 540 RPM vs 1000 RPM PTO Selection<\/summary>\n
The EP-AG135 operates at 540 rpm. Most rotary mowers use 540 RPM PTO. The 1000 RPM standard is for larger implements on high-HP tractors. Never connect a 540 RPM gearbox to a 1000 RPM PTO \u2014 the doubled speed will destroy bearings and gears within minutes.<\/div>\n<\/details>\n

🌾 Typical Application Scenarios<\/h2>\n
\n
\n

🌾 Flail mulching of pruning residue in fruit plantations<\/p>\n<\/div>\n

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🚘 Orchard and vineyard floor maintenance between rows<\/p>\n<\/div>\n

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🌱 Mining site vegetation rehabilitation and control<\/p>\n<\/div>\n

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⛰ Forestry site preparation and plantation row clearing<\/p>\n<\/div>\n

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🌳 Stubble incorporation and green manure tillage<\/p>\n<\/div>\n<\/div>\n

\"Ever-power<\/div>\n

🛠 Installation & Setup Guide<\/h2>\n
    \n
  1. If replacing an existing unit, drain the old oil completely, remove mounting fasteners, and carefully lower the old gearbox. Photograph the orientation and note any shim washers used.<\/li>\n
  2. Insert all mounting bolts finger-tight first, then torque to specification in a cross (star) pattern to ensure even clamping. Typical torque: 80-120 Nm depending on bolt size.<\/li>\n
  3. With the implement raised and blades clear of the ground, engage the PTO at low idle speed. Listen for any unusual noise and observe for vibration or oil leaks.<\/li>\n
  4. Verify that the mower implement safety chain or restraint is properly connected to prevent the gearbox from contacting the ground if the three-point hitch fails.<\/li>\n
  5. Apply a thin, even bead of RTV silicone sealant to the mounting flange face if a pre-cut gasket is not included with the new gearbox.<\/li>\n
  6. Connect the PTO drive shaft to the gearbox input spline. Push the shaft on fully and verify it telescopes freely through the complete range of three-point hitch travel.<\/li>\n
  7. After the first 10 hours of operation, re-torque all mounting bolts to specification and verify oil level. Perform the first oil drain and refill at 50 hours.<\/li>\n<\/ol>\n

    ❓ Frequently Asked Questions<\/h2>\n
    \n
    \n❓ Do you provide dimensional drawings?<\/summary>\n
    \n

    Full technical drawings \u2014 mounting holes, shaft specs, envelope dimensions \u2014 are available for every model. Download from our product pages or request from our technical department at no charge.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Do you offer technical support after purchase?<\/summary>\n
    \n

    Yes. Our technical team provides installation guidance, troubleshooting support, and maintenance advice via phone, email, and video call. We also offer on-site training for fleet operators and dealer technicians.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Is this gearbox safe to run at 1000 RPM PTO speed?<\/summary>\n
    \n

    This unit is rated for 540 RPM input. Operating at 1000 RPM without the correct gear set will over-speed bearings and gears, causing rapid failure. Contact our team if you need a 1000 RPM-rated configuration.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Can I mount this gearbox at non-standard angles?<\/summary>\n
    \n

    Most models are designed for vertical or horizontal output as specified. Mounting at unusual angles can affect oil distribution. Contact our engineering team to confirm suitability before installing in a non-standard orientation.<\/p>\n<\/div>\n<\/details>\n

    \n❓ How do I identify when my gearbox needs repair?<\/summary>\n
    \n

    Warning signs: unusual grinding or whining noise, increased vibration, oil leakage, metallic particles on the magnetic drain plug, elevated operating temperature, or detectable play in the output shaft.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

    ⭐ Customer Reviews & Field Reports<\/h2>\n
    <\/p>\n
    <\/div>\n
    \n
    \n

    Mark T.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Victoria, Australia<\/p>\n

    Precision manufacturing is evident when you look at the gear teeth. Mesh noise is minimal. Very satisfied with this purchase.<\/p>\n<\/div>\n

    \n
    \n

    Marco P.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Emilia-Romagna, Italy<\/p>\n

    The compact size was critical for our application and this model delivered. Two years running, zero problems whatsoever.<\/p>\n<\/div>\n

    \n
    \n

    Fernando M.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Jalisco, Mexico<\/p>\n

    We ordered in bulk for our dealer network. Customer return rate is near zero. That speaks volumes about reliability.<\/p>\n<\/div>\n

    \n
    \n

    Piotr N.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Lublin, Poland<\/p>\n

    Fast shipping, professional packaging, and the gearbox itself is built like a tank. Highly recommended for serious agricultural work.<\/p>\n<\/div>\n

    \n
    \n

    Luca V.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Tuscany, Italy<\/p>\n

    Installed on a rotary cutter that sees 8+ hours of use per day during season. Absolutely dependable. That is all I ask of a gearbox.<\/p>\n<\/div>\n<\/div>\n

    \"Jordbruksv\u00e4xell\u00e5dor\"<\/div>\n

    ⚖ EP-AG135 vs. Low-Cost Alternatives<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Feature<\/th>\nEP-AG135 (Ever-power)<\/th>\nGeneric \/ Low-Cost Alternative<\/th>\n<\/tr>\n<\/thead>\n
    Gear Forging Method<\/td>\n✔ Closed-Die Forged, Grain-Flow Aligned<\/td>\n✘ Open-Die Forged or Cast, Weak Grain Structure<\/td>\n<\/tr>\n
    Cooling Design<\/td>\n✔ Machined External Cooling Fins, 35% More Area<\/td>\n✘ Smooth Housing, Poor Heat Dissipation<\/td>\n<\/tr>\n
    Output Flange<\/td>\n✔ Forged Steel, Heat-Treated HRC 28-32<\/td>\n✘ Cast Iron, Untreated, Prone to Cracking<\/td>\n<\/tr>\n
    Gear Material<\/td>\n✔ 20CrMnTi Forged Alloy Steel, Carburized HRC 58-62<\/td>\n✘ 45# Carbon Steel, Surface Hardened HRC 40-45<\/td>\n<\/tr>\n
    Warranty<\/td>\n✔ 12-Month Full Manufacturer Warranty<\/td>\n✘ 3-6 Month Limited Warranty<\/td>\n<\/tr>\n
    Seal Longevity<\/td>\n✔ FKM\/Viton Seals, 2000+ Hour Service Life<\/td>\n✘ NBR Seals, 500-800 Hours Before Leaking<\/td>\n<\/tr>\n
    Breather<\/td>\n✔ Labyrinth Stainless Steel Breather Valve<\/td>\n✘ Simple Open Vent Hole, Allows Water Entry<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    🔄 Related Products & Accessories<\/h2>\n
    \n

    \n\"Overrunning<\/p>\n
    \n

    Overrunning Clutch PTO Shafts<\/p>\n

    PTO shafts with integrated freewheel clutch to protect against driveline back-torque.<\/p>\n<\/div>\n

    <\/a>
    \n\"Mower<\/p>\n

    \n

    Mower Skid Shoes & Rollers<\/p>\n

    Adjustable-height skid shoes and gauge rollers for precise mowing height control.<\/p>\n<\/div>\n

    <\/a>
    \n\"Gearbox<\/p>\n

    \n

    Gearbox Oil & Lubricants<\/p>\n

    EP gear oils, synthetic lubricants, and greases formulated for agricultural gearbox service.<\/p>\n<\/div>\n

    <\/a><\/div>\n

    Browse our complete range of agricultural transmission components<\/a> including PTO shafts, gears, pulleys, chains, and sprockets \u2014 all engineered to integrate seamlessly with EP-AG135 gearboxes.<\/p>\n<\/div>\n

    🏆 Certifications & Quality Standards<\/h2>\n

    Manufactured under ISO 9001:2015 and audited annually by international OEM customers, the EP-AG135 represents our commitment to world-class quality. Gear material certificates (3.1), heat-treatment records, bearing lot traceability, and final inspection reports are maintained for every production batch and available upon customer request.<\/p>\n

    🏭 Why Choose Ever-power Australia Mower Gearbox Co.,Ltd.?<\/h2>\n

    At Ever-power Australia Mower Gearbox Co.,Ltd., we are not just a gearbox factory \u2014 we are a full-service power transmission partner. From initial application engineering and 3D prototype modelling through to volume production, global logistics, and after-sales technical support, we manage the complete product lifecycle. Our 22000 m\u00b2 facility in China is audited annually by international OEM customers and consistently rated among the top-tier suppliers in the agricultural transmission sector.<\/p>\n

    \"Kraftuttagsaxel\"<\/div>\n
    \n

    📞 Get Your EP-AG135 Quote Today<\/h3>\n

    Need the EP-AG135 shipped fast? In-stock standard models dispatch within 3-5 business days. Contact us now to confirm availability and lock in today’s pricing before your next mowing season.<\/p>\n

    Request a Quote<\/a>Browse All Products<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    The EP-AG135 is a 50 HP, 1:1 ratio agricultural gearbox weighing only 16.5 kg \u2014 exceptional power density for its class. Pasture renovation contractors and seed farm operators choose the AG135 when they need a direct-drive unit that preserves full PTO speed for high-RPM finishing mower heads.<\/p>","protected":false},"featured_media":1403,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[3074],"product_tag":[3170,3169,3136,3172,3171],"class_list":{"0":"post-1456","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-mower-gearbox","7":"product_tag-11-ratio-mower-gearbox","8":"product_tag-50hp-agricultural-gearbox","9":"product_tag-cone-base-spline-gearbox","10":"product_tag-farm-mower-transmission","11":"product_tag-rotary-cutter-drive-unit","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product\/1456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/comments?post=1456"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/media\/1403"}],"wp:attachment":[{"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/media?parent=1456"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product_brand?post=1456"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product_cat?post=1456"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mowergearbox.top\/sv\/wp-json\/wp\/v2\/product_tag?post=1456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}