EP-55 Lawn Mower Gearbox

EP-55 Lawn Mower Gearbox

The EP-55 provides 50 HP capacity in a heavy-duty 1:1.6 ratio configuration with module 6.0 gears. Agricultural contractors and livestock producers rely on this gearbox for sustained high-load mowing across large paddocks, where its oversized seals and deep oil sump ensure all-day productivity without overheating.

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説明


High-Performance Heavy-Duty Rotary Cutter Gearbox: EP-55 by Ever-power Australia Mower Gearbox Co.,Ltd.

Engineered for sustained heavy use, the EP-55 芝刈り機のギアボックス converts your tractor’s PTO output into efficient cutting force. Rated at 50馬力 with gear ratio options of 1:1.6, this unit combines flexibility with the durability that commercial operators demand.

EP-55 Heavy-Duty Rotary Cutter Gearbox

📈 EP-55 Technical Specifications

パラメータ 仕様
型番 EP-55
ギアボックスタイプ Heavy-Duty Rotary Cutter Gearbox
ギア比 1:1.6
歯の形状 15/24
ギアモジュール 6.0
定格電力 50馬力
入力速度 540回転/分
入力/出力シャフト 1 3/8 Z6, Cone base aequilate spline shaft
正味重量 28.7 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

⚗

Dual-Lip NBR Oil Seals

Twin-lip nitrile seals with integrated dust excluder on every shaft exit, rated to IP65, preventing moisture and crop debris from entering the gear chamber.

🔒

Optimized Lightweight Geometry

Finite-element-optimized casing walls remove unnecessary material while maintaining full load capacity, reducing installed weight by 15% versus previous-generation housings.

⚡

20CrMnTi Forged Gear Blanks

All gear blanks are closed-die forged (not cast) to align grain flow with tooth roots, increasing bending fatigue strength by 30% over alternative casting methods.

🔄

97%+ Mechanical Efficiency Rating

Super-finished gear flanks (Ra ≤ 0.6 μm) and optimized tooth contact deliver over 97% efficiency, reducing fuel consumption and allowing cooler continuous operation.

🔨

Premium Tapered Roller Bearings

All positions fitted with Japanese-standard tapered roller bearings rated for 5,000+ hours L10 life, handling combined radial and thrust loads simultaneously.

🌡

GGG-50 Spheroidal Iron Casing

EN-GJS-500-7 housing tested to 25 bar hydrostatic pressure, providing extreme fatigue strength for applications exceeding 100 HP continuous input power.

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-55

The EP-55 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:

New Holland • Bush Hog • Kioti • Vicon • Bomford • Valtra • Yanmar • Lovol

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

Proper gearbox selection protects your investment and maximizes field productivity. Here is how to determine if the EP-55 is right for your operation:

📌 540 RPM vs 1000 RPM PTO Selection
The EP-55 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.
📌 Cast Iron Housing vs Aluminium Housing
The EP-55 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-55 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.
📌出力軸タイプの互換性
The EP-55 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 — spline, taper, keyway, and flange — to match virtually any existing installation.
📌重量と取り付けに関する考慮事項
At 28.7 Kg, the EP-55 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.

🌾 一般的なアプリケーションシナリオ

🌾 Roadside and highway verge vegetation management

🚘 Pipeline and powerline easement clearing

🌱 Riparian zone and waterway bank vegetation control

⛰ Rotary tiller seedbed preparation for row crops

🌳 Land clearing of light to medium regrowth scrub

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. Disconnect the tractor PTO shaft and safely support the mower implement on jack stands or blocks before beginning the gearbox installation procedure.
  2. For units weighing over 25 kg, use a chain hoist, engine crane, or two-person lift to position the gearbox. Never attempt to lift heavy gearboxes solo.
  3. Fill the gearbox with the recommended gear oil (SAE 80W-90 or 85W-140 EP) to the level indicated on the sight glass or dipstick. Do not overfill.
  4. 全負荷運転を行う前に、段階的な慣らし運転を行ってください。まず、スロットルを半分開けて30分間運転し、次にスロットルを4分の3開けて30分間運転してから、PTOを全開速度で運転してください。
  5. 定規を使って、作業機の取り付け面が平坦かどうかを点検してください。0.5mmを超える歪みがある場合は、新しいギアボックスを取り付ける前に修正する必要があります。
  6. 運転中の振動による緩みを防ぐため、すべての取り付けボルトにNord-Lockワッシャーまたはねじロック剤を使用してください。
  7. ギアボックスを無負荷状態で5～10分間運転した後、停止させてオイルレベルを再確認してください。新しいシールやベアリングは、初期段階で少量のオイルを吸収することがよくあります。

❓よくある質問

❓ Can this unit directly replace my OEM gearbox?

Yes. Our mounting patterns, shaft diameters, and spline profiles match industry-standard OEM dimensions. We supply detailed technical drawings for cross-referencing. If your existing unit differs slightly, our engineering team can advise on adapters.

❓ What happens if I accidentally run it dry?

Stop the PTO immediately. Even a few minutes without oil causes severe gear scoring and bearing damage, typically requiring a full internal rebuild. Always verify oil level before engaging the PTO.

❓ How should I store the gearbox off-season?

Run briefly to warm the oil, then top up to the full mark. Apply grease to exposed shaft surfaces and seal any open ports. Store in a dry, covered area. Before next season, verify oil level and rotate input by hand to check free movement.

❓ Can I replace just the gear set?

Yes. Replacement gear sets are available for all models and are cost-effective when the housing, bearings, and shafts remain in good condition. We recommend replacing bearings and seals simultaneously for best results.

❓ Can this gearbox handle reverse PTO rotation?

Our spiral bevel designs operate correctly in both rotational directions without modification. However, check your specific implement requirements, as some mower blade assemblies are direction-sensitive.

⭐ お客様の声と現場レポート

★★★★★

📍 New South Wales, Australia

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

★★★★★

📍 Adana, Turkey

Replaced a failed OEM unit on a 15-year-old mower. This new gearbox is actually smoother and quieter than the original ever was.

★★★★★

📍 Saskatchewan, Canada

Best aftermarket unit I have used in 20+ years of farming. Bolt holes aligned first try. Oil sight glass is a thoughtful touch.

★★★★☆

📍 Hokkaido, Japan

Precision manufacturing is evident when you look at the gear teeth. Mesh noise is minimal. Very satisfied with this purchase.

★★★★☆

📍 Castilla, Spain

The compact size was critical for our application and this model delivered. Two years running, zero problems whatsoever.

農業用ギアボックスシリーズ

⚖ EP-55 vs. Low-Cost Alternatives

特徴 EP-55 (Ever-power) ジェネリック／低価格代替品
ハウジング ✔ ダクタイル鋳鉄またはHT250ねずみ鋳鉄、肉厚12～14mm ✘ 薄肉リサイクル鋳鉄、肉厚8mm
表面仕上げ ✔ Eコートプライマー＋粉体塗装、合計80μm ✘ スプレー塗料、30～40μm、数ヶ月以内に欠ける
騒音レベル ✔ 1m地点で72～78dB、スパイラルベベル設計 ✘ 1m地点で82～88dB、ストレートベベル設計
ベアリングの取り付け ✔ 誘導加熱による圧入 ✘ 圧入式、穴の中で回転する危険性あり
ベアリングの予圧 ✔ 精密シム調整済み、エンドプレイゼロ ✘プリロード調整なし、過剰な遊び
ガスケットシステム ✔フッ素樹脂製Oリング、再締め付け不要 ✘ 紙製ガスケット、毎年再締め付けが必要
潤滑システム ✔ 飛沫防止＋方向調整バッフル、全面カバー ✘ 基本的な飛沫のみ、不均一な分布

🔄関連商品・アクセサリー

🏆 認証と品質基準

We maintain rigorous quality standards backed by ISO 9001:2015 certification across our entire production process. Raw materials are verified through spectroscopic analysis with ASTM E415 certificates. Gear tooth geometry on every EP-55 is validated using CNC gear inspection machines calibrated to national metrology standards. Our laboratory performs hardness testing, metallographic examination, and magnetic particle inspection on every batch.

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

We at Ever-power Australia Mower Gearbox Co.,Ltd. combine deep metallurgical expertise with state-of-the-art manufacturing technology to produce agricultural gearboxes that compete head-to-head with the best European and American brands — at a fraction of the cost. Our 23 CNC machining centres and 9 dedicated gear production lines give us the capacity and flexibility to handle orders from single prototype units to full container-load production runs, all with the same unwavering commitment to dimensional accuracy and material quality.

PTO駆動シャフト

📞 Get Your EP-55 Quote Today

Looking for a dependable heavy-duty rotary cutter gearbox that pays for itself season after season? Contact us now for a competitive quote on the EP-55 and discover why thousands of farmers trust our gearboxes.

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