EP-BGB8 Lawn Mower Gearbox

The EP-BGB8 provides dual ratios (1:1 and 1.67:1) in a lightweight 18 kg package rated at 30 HP. First-time gearbox buyers and budget-conscious small farmers choose the BGB8 for its simple, reliable construction and the flexibility to gear up or down depending on whether they are mowing fine grass or taller weeds.

説明


EP-BGB8 Dual-Ratio Rotary Cutter Gearbox — Precision Power Transmission for Modern Mowing

EP-BGB8 represents the latest in agricultural gearbox engineering. With 30馬力 capacity, 1:1 / 1.67:1 ratio configuration, and 18 Kg optimized construction, it delivers the power density and reliability today’s farming operations require.

EP-BGB8 Dual-Ratio Rotary Cutter Gearbox

📈 EP-BGB8 Technical Specifications

パラメータ 仕様
型番 EP-BGB8
ギアボックスタイプ Dual-Ratio Rotary Cutter Gearbox
ギア比 1:1 / 1.67:1
歯の形状 22/15, 15/25
ギアモジュール 5.08 / 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 1 3/8 Z6 / 1 3/8 Z6
正味重量 18 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

🛠

Split-Line O-Ring Seal

Precision-machined housing split line with fluorocarbon O-ring eliminates the gasket creep and re-torque requirements of traditional paper or RTV gasket joints.

🔬

Low-Backlash Preloaded Assembly

Bearing preload and controlled gear mesh clearance hold total backlash below 0.08 mm, critical for reversing-load applications and precision-cut implements.

Redundant Lubrication Groove System

Machined oil distribution grooves in the housing bore supplement splash lubrication, providing a secondary oil path to bearings if sump level drops slightly below specification.

🚀

Reinforced Grey Cast Iron Housing

HT250-grade grey iron casing with 14 mm wall thickness, ribbed for vibration damping and thermal dissipation, resisting cracking from rock strikes at mowing speed.

💪

Standard 1 3/8″ 6-Spline PTO Input

Industry-standard input spline accepts all 540 RPM PTO shafts, ensuring bolt-on compatibility with tractors from 15 HP sub-compacts to 50 HP utility models.

Induction-Hardened Output Shaft

Output shaft journals hardened to HRC 50-55 via controlled induction heating, extending bearing seat life beyond 3,000 operating hours before re-machining is needed.

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-BGB8

The EP-BGB8 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:

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

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

Selecting a gearbox that matches your exact requirements avoids premature wear and costly downtime. Consider these points for the EP-BGB8:

📌重量と取り付けに関する考慮事項
At 18 Kg, the EP-BGB8 is designed for compact and sub-compact tractor implements. 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.
📌 ギア比とブレード先端速度のマッチング
For the EP-BGB8 with ratio(s) 1:1 / 1.67:1, 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 ÷ 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-BGB8 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 vs 1000 RPM PTO Selection
The EP-BGB8 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-BGB8 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.

🌾 一般的なアプリケーションシナリオ

🌾 Railway corridor vegetation control programs

🚘 Estate, golf course, and sportsfield maintenance

🌱 Flail mulching of pruning residue in fruit plantations

⛰ Orchard and vineyard floor maintenance between rows

🌳 Mining site vegetation rehabilitation and control

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. 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。
  2. 作業機の取り付け面を徹底的に清掃し、錆、古いガスケット材、塗料の剥がれ、およびギアボックスフランジとの密着を妨げる可能性のある破片をすべて取り除きます。
  3. ギアボックスをマウントスタッドまたはボルト穴に配置し、入力シャフトがトラクターのPTOに面し、出力シャフトがブレードハブまたはローターと一直線になっていることを確認します。
  4. PTOシャフトは、すべての動作位置において、少なくとも50%のスプライン重なりを確保してください。重なりが不十分な場合、スプラインの摩耗が急速に進み、シャフトが分離する可能性があります。
  5. Record the installation date, tractor hour meter reading, and gearbox serial number in your maintenance log for warranty and service interval tracking.
  6. 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.
  7. 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.

❓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

Perfect for our roadside mowing. The compact design fits between rows with room to spare. Very reliable day-to-day operation.

★★★★★

📍 Canterbury, New Zealand

Good quality for the price. Our crew runs these gearboxes hard and they hold up better than previous brands we have tried.

★★★★★

📍 Krasnodar, Russia

We fitted six of these across our fleet. Every single unit has performed flawlessly through two complete cutting seasons.

★★★★☆

📍 Emilia-Romagna, Italy

Excellent for hay field cutting. The cooling fin design makes maintenance easy and keeps unplanned downtime to a minimum.

★★★★☆

📍 Jalisco, Mexico

Runs noticeably cooler than the old gearbox it replaced. The improved cooling design and better oil volume are making a real difference.

農業用ギアボックスシリーズ

⚖ EP-BGB8 vs. Low-Cost Alternatives

特徴 EP-BGB8 (Ever-power) ジェネリック/低価格代替品
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
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

🔄関連商品・アクセサリー

🏆 認証と品質基準

The EP-BGB8 is produced in our ISO 9001:2015 certified facility with full material traceability from steel mill to finished product. We perform incoming material inspection (spectrometry and hardness), in-process dimensional verification at every machining stage, and final assembly testing that includes noise, vibration, and oil-leak checks. Certificates of conformance are available on request.

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

Choosing Ever-power Australia Mower Gearbox Co.,Ltd. means partnering with a manufacturer that understands agricultural machinery from the ground up. Our R&D team develops 19 new gearbox models each year, collaborating directly with implement OEMs in Australia, Germany, the United States, Brazil, and beyond. Whether you need a standard catalog gearbox shipped next week or a fully custom design with unique ratios and mounting interfaces, we deliver — on specification, on budget, and on time.

PTO駆動シャフト

📞 Get Your EP-BGB8 Quote Today

Upgrade from unreliable aftermarket gearboxes to the proven EP-BGB8. Our team is ready to provide datasheets, cross-reference guides, and a no-obligation quotation within 24 hours.

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