EP-RC31 Lawn Mower Gearbox

EP-RC31 Lawn Mower Gearbox

The EP-RC31 is a four-ratio rotary cutter gearbox delivering 30 HP through hardened spiral bevel gears. Ideal for hobby farmers and small property owners who need a versatile, cost-effective gearbox to handle pasture mowing, light brush clearing, and seasonal vegetation management with a single compact unit.

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Description


EP-RC31 — Professional-Grade Rotary Cutter Gearbox for Agricultural Mowing

The EP-RC31 is a purpose-engineered 芝刈り機のギアボックス delivering reliable right-angle power transmission at 30馬力 with 540回転/分 PTO input. Its spiral bevel gears and sealed construction ensure consistent performance across thousands of operating hours in demanding field conditions.

EP-RC31 Rotary Cutter Gearbox

📈 EP-RC31 Technical Specifications

パラメータ 仕様
型番 EP-RC31
ギアボックスタイプ ロータリーカッター用ギアボックス
ギア比 1:1.46 / 1:1.69 / 1:1.93 / 1:2.3
歯の形状 22/15, 22/13, 29/15, 28/12
ギアモジュール 5.08 / 5.0 / 4.0 / 4.0
定格電力 30馬力
入力速度 540回転/分
入力/出力シャフト 3/8 Z6 / Optic axis / Taper spline
正味重量 21.5 Kg
ギア素材 20CrMnTi合金鋼、浸炭焼入れ済み、硬度HRC 58-62
ハウジング材 ねずみ鋳鉄（HT200/HT250）
シール保護 マルチリップNBR/FKMオイルシール、IP65+規格準拠
潤滑 SAE 80W-90または85W-140 EPギアオイル
表面処理 Eコートプライマー＋ポリエステル粉体塗装、赤色仕上げ

⭐ 主な特長とエンジニアリング上の利点

⚙

CNC-Machined Spiral Bevel Gears

Gears cut from 20CrMnTi alloy on Gleason CNC generators, case-carburized to HRC 58-62 with 1.2 mm case depth for 10+ million cycle fatigue life under rated torque.

⚗

96-98% Power Transmission Efficiency

Precision-lapped tooth contact patterns reduce mesh friction losses to under 4%, delivering near-full PTO horsepower to the blade assembly with minimal heat build-up.

🔒

Pre-Filled EP90 Gear Lubricant

Ships factory-filled with extreme-pressure SAE 90 gear oil and includes a clear sight glass for instant oil-level verification before each operating session.

⚡

QT450-10 Ductile Iron Shell

Nodular graphite iron housing absorbs 40% more impact energy than grey iron, protecting internal components when the mower strikes concealed rocks or fence posts.

🔄

Dual 540/1000 RPM Configurability

Input shaft and gear set available in both 540 RPM and 1000 RPM PTO configurations, covering the full range of modern tractor PTO standards from a single product family.

🔨

Rapid-Release Blade Flange

Quick-disconnect output flange with self-centering pilot reduces blade swap time to under 10 minutes, cutting maintenance downtime by 60% versus bolted hubs.

農業用芝刈り機のギアボックス

🔧 機器の互換性と相互参照

🔄 Cross-Reference Compatibility for EP-RC31

The EP-RC31 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:

John Deere • AGCO • Rhino • LS Tractor • Fella • Sonalika • Branson • Dongfeng

免責事項：上記のブランド名は、互換性確認のためのみに記載されています。Ever-power Australia Mower Gearbox Co.,Ltd.は、記載されているメーカーとは一切提携、承認、または認可を受けていません。すべての商標は、それぞれの所有者に帰属します。

📚 ギアボックス選定ガイド

Choosing the right mower gearbox is critical for implement performance and longevity. Use the following criteria when evaluating the EP-RC31:

📌 ギア比とブレード先端速度のマッチング
For the EP-RC31 with ratio(s) 1:1.46 / 1:1.69 / 1:1.93 / 1:2.3, 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 ÷ ratio. Multiply by blade diameter to get tip speed.
📌トラクターPTO馬力に対する出力定格の選定
The EP-RC31 is rated at 30 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.
📌 540 RPM 対 1000 RPM PTO の選択
The EP-RC31 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 — the doubled speed will destroy bearings and gears within minutes.
📌鋳鉄製ハウジング vs アルミニウム製ハウジング
The EP-RC31 uses a grey cast iron housing. Cast iron excels in vibration damping, impact resistance, and heat dissipation — ideal for rough, rocky mowing conditions. Aluminium is lighter and more corrosion-resistant, better suited to wet environments and weight-sensitive implements.
📌 標準カタログ vs カスタム仕様
The EP-RC31 is available as a standard catalog item shipping in 3-5 days. If your application requires a non-standard ratio, shaft type, or mounting configuration, our engineering team offers custom designs with 4-6 week lead times. Minimum order quantities may apply.

🌾 一般的なアプリケーションシナリオ

🌾 酪農場および肉牛農場における改良牧草のロータリー刈り取り

🚘 太陽光発電所の地被植物と雑草管理

🌱防火帯の設置と維持管理のための草刈り

⛰ 草やマメ科の干し草作物のディスク刈り取り

🌳 飛行場周辺および滑走路帯の草管理

エバーパワー・オーストラリア・モアギアボックス株式会社の製造施設

🛠 インストールとセットアップガイド

  1. Clean the implement mounting surface thoroughly, removing all rust, old gasket material, paint flakes, and debris that could prevent flush contact with the gearbox flange.
  2. Position the gearbox onto the mounting studs or bolt holes, verifying the input shaft faces the tractor PTO and the output shaft aligns with the blade hub or rotor.
  3. Ensure the PTO shaft has at least 50% spline overlap in all operating positions. Inadequate overlap causes rapid spline wear and potential shaft separation.
  4. Record the installation date, tractor hour meter reading, and gearbox serial number in your maintenance log for warranty and service interval tracking.
  5. 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.
  6. 取り付けボルトはすべて、まず指で軽く締めてから、十字形（星形）になるように規定トルクで締め付け、均等に締め付けます。標準的なトルク値は、ボルトのサイズによって80～120Nmです。
  7. 作業機を持ち上げ、ブレードが地面から離れている状態で、PTOを低速アイドル回転で作動させます。異音がないか、振動やオイル漏れがないかを確認してください。

❓よくある質問

❓ What gear oil specification does this gearbox require?

Use SAE 80W-90 or SAE 85W-140 GL-5 extreme-pressure gear oil under normal conditions. For sub-zero climates below -20 °C, a synthetic 75W-90 ensures proper cold-start flow. Always check the sight glass or dipstick before each shift.

❓ Which tractor brands are compatible?

Our gearboxes use standard PTO connections (1 3/8″ 6-spline or 1 3/4″ 20-spline) compatible with virtually every brand — John Deere, Kubota, Massey Ferguson, New Holland, Case IH, Kioti, Mahindra, and more.

❓ How noisy is this gearbox during operation?

Our spiral bevel designs produce 72-78 dB(A) at 1 metre under rated load — significantly quieter than straight-bevel alternatives (typically 82-88 dB). Operators notice a meaningful reduction in gear whine.

❓ What is the difference between ratio options?

Ratio determines the speed/torque trade-off at the output. 1:1 maintains PTO speed (high blade RPM); 1:1.93 nearly halves output speed while doubling torque. Choose based on your target blade tip speed and vegetation density.

❓ What is the lead time for standard models?

In-stock standard models ship within 3-5 business days. For models requiring custom ratios or configurations, typical lead time is 4-6 weeks. Rush production is available for urgent requirements.

⭐ お客様の声と現場レポート

★★★★★

📍 Queensland, Australia

Fitted to my rotary cutter last season. Over 400 hours and counting — zero leaks, minimal noise. Excellent value for a professional-grade unit.

★★★★★

📍 Jalisco, Mexico

Running it on a 40-50 HP tractor through rocky paddocks. Handles rocks and rough ground without complaint. Very impressed with the build.

★★★★★

📍 Lublin, Poland

Purchased two units for our operation. Consistent quality between both units, which tells me their factory QC is solid. Will buy again.

★★★★☆

📍 Tuscany, Italy

15年物の芝刈り機の故障した純正部品を交換しました。この新しいギアボックスは、元のものよりもずっとスムーズで静かです。

★★★★☆

📍 Punjab, India

20年以上農業に携わってきた中で、最高の社外品です。ボルト穴の位置も一発でぴったり合いました。オイルレベルゲージが付いているのも嬉しいポイントです。

農業用ギアボックスシリーズ

⚖ EP-RC31 vs. Low-Cost Alternatives

特徴 EP-RC31 (Ever-power) ジェネリック／低価格代替品
ギア素材 ✔ 20CrMnTi鍛造合金鋼、浸炭処理済み、HRC 58-62 ✘ 45#炭素鋼、表面硬化処理済み、HRC 40-45
保証 ✔ 12ヶ月間のメーカー保証 ✘ 3～6ヶ月間の限定保証
アザラシの寿命 ✔ FKM/Viton Seals, 2000+ Hour Service Life ✘ NBR Seals, 500-800 Hours Before Leaking
Breather ✔ Labyrinth Stainless Steel Breather Valve ✘ Simple Open Vent Hole, Allows Water Entry
Gear Forging Method ✔ Closed-Die Forged, Grain-Flow Aligned ✘ Open-Die Forged or Cast, Weak Grain Structure
冷却設計 ✔ 機械加工された外部冷却フィン、35% より広い面積 ✘ 滑らかな筐体、放熱不良
出力フランジ ✔ 鍛造鋼、熱処理済み、硬度HRC 28-32 ✘鋳鉄製、未処理、ひび割れしやすい

🔄関連商品・アクセサリー

🏆 認証と品質基準

Our manufacturing facility holds ISO 9001:2015 quality management and ISO 14001:2015 environmental management certifications. All gear steel is supplied with EN 10204 Type 3.1 mill test certificates. Heat treatment processes are monitored per CQI-9 (Special Process: Heat Treat System Assessment). Every EP-RC31 undergoes 100% dimensional inspection and functional testing before shipment.

🏭 Ever-power Australia Mower Gearbox Co.,Ltd.を選ぶ理由とは？

At Ever-power Australia Mower Gearbox Co.,Ltd., we have invested over two decades building one of the most advanced agricultural gearbox production facilities in the Asia-Pacific region. Our 12000 m² campus integrates in-house forging, CNC gear cutting, automated heat treatment, precision grinding, and assembly under one roof — giving us end-to-end quality control that outsourced manufacturers simply cannot match. We produce 45000 gearbox units annually, serving OEM partners and distributors across 35+ countries on six continents, with particular strength in the Australian, North American, and European markets.

PTO駆動シャフト

📞 Get Your EP-RC31 Quote Today

Ready to boost your mowing productivity with the EP-RC31? Our application engineers can match this gearbox to your specific tractor and implement — get a tailored recommendation today.

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