Gearbox for Front Loader

Professional-Grade Front Loader Gearbox — Trusted by Farmers Across Australia

Productive front-end loading starts with dependable power transmission. The Front Loader gearbox we manufacture is a precision instrument — not a commodity part. The front loader gearbox drives the hydraulic pump that powers the loader arms, bucket tilt, and auxiliary functions. Mounted on the tractor’s PTO output, it must deliver high hydraulic flow for fast cycle times while maintaining precise control for tasks like pallet handling.

From the hardened gear teeth to the heavy-duty shaft seals, every element is selected and assembled to deliver thousands of hours of trouble-free service. Australian farmers operating in dust, heat, mud, and moisture rely on this gearbox to perform consistently throughout the most demanding seasons.

🛠 Front Loader Gearbox Specifications at a Glance

Key performance data for our agricultural gearbox for front loader. Need different specs? We manufacture to your exact requirements.

Gear & Ratio Data

Mounting Configuration	4-bolt square	Custom mounting plates available
Gear Surface Hardness	HRC 60 – 63	Carburized + ground
石油生産能力	2.4 litres	Oversized sump available
1mの距離での騒音	≤ 72 dB(A)	Low-noise profiles optional
プライマリーギアタイプ	平歯車	Custom tooth profiles on request

Power & Torque Ratings

Drain Plug Type	Sight glass + drain combo	Sampling port option
利用可能なギア比	1:2 to 1:6	Non-standard ratios manufactured to order
過負荷保護	Shear bolt	Adjustable trip settings
定格負荷時の効率	97%	Measured on dynamometer
Recommended Lubricant	synthetic PAO 75W-90	Synthetic and bio-oil compatible

Construction & Materials

入力軸径	40 mm	Custom diameters
Module / Diametral Pitch	M2.5	Finer/coarser modules available
正味重量	50 kg	Varies by configuration
回転方向	CCW standard (CW optional)	Reversible models
Centre Distance	80 mm	Per gear ratio

Sealing, Lubrication & Environment

出力軸タイプ	Hex output	Custom output configurations
Rated Power Capacity	18 – 250 HP (13-186 kW)	Higher ratings available
PTO Input Speed	540 / 1000 RPM	Economy PTO (750 RPM) option available
Shaft Seal Type	Double-Lip Oil Seal	Triple-lip and cassette options
ギアコア硬度	HRC 28	Tough shock-absorbing core

お問い合わせ先エンジニアリングチーム for a detailed specification sheet tailored to your front loader model and front-end loading conditions.

✅ Our Front Loader Gearbox vs Budget Alternatives

Professional front-end loading operators know that gearbox quality directly impacts productivity. This comparison proves why our Front Loader gearbox is the professional choice:

Quality Metric	Economy-Class Unit	Our Professional Front Loader Gearbox
ベアリング仕様	汎用深溝軸受、基本グリースパック	SKF/NSK equivalent class, matched bearing sets, factory pre-load adjustment
Spare Parts	Parts catalogue unavailable	Standardized parts across model range
シーリングシステム	標準的なOリングシール、限定的な防塵性能	Double-lip VITON FKM seal + external labyrinth dust excluder
住宅設計	薄肉のねずみ鋳鉄製で、衝撃を受けると割れやすい。	ADI (Austempered Ductile Iron), 30% stronger than standard ductile at same weight
Gear Material & Treatment	Cast steel, surface-hardened only, shallow case	18CrNiMo7-6 aerospace-grade steel, shot-peened root fillets for fatigue life
騒音と振動	85+ dB(A) — requires hearing protection	らせんオーバーラップ比が1.5を超えると、単一歯への負荷が解消される。
Operating Efficiency	82-87% — high fuel consumption penalty	97%+ — superfinished gears reduce mesh friction to near-theoretical minimum

Every dollar spent on a premium gearbox returns multiple dollars in avoided repairs and preserved crop value. Request an ROI analysis for your operation.

🔧 Power Pathway: How Your Front Loader Gearbox Works

私たちの Front Loader agricultural gearbox is a specialized power transmission unit for front-end loading:

▶ PTO Power Input

The input stage receives rotational energy via splined coupling at standard agricultural speeds. A hardened splined input shaft meshes with the PTO driveline, supported by spherical roller bearings rated for continuous heavy-duty front-end loading operation.

▶ Gear Reduction & Torque Multiplication

The heart of the gearbox is a matched set of spur gears, forged from Cr-Mo alloy steel. These gears reduce rotational speed from PTO RPM to the hydraulic pump drive’s working speed while proportionally multiplying torque. The front loader gearbox drives the hydraulic pump that powers the loader arms, bucket tilt, and auxiliary functions. Mounted on the tractor’s PTO output, it must deliver high hydraulic flow for fast cycle times while maintaining precise control for tasks like pallet handling. The gear mesh geometry is computer-optimized for even load distribution.

▶ Output to Hydraulic Pump Drive

The gearbox output shaft connects directly to the front loader’s hydraulic pump drive, delivering torque-multiplied power for productive front-end loading. The output coupling is machined to precise tolerances for responsive, zero-backlash power delivery.

▶ Lubrication & Protection

The spheroidal graphite iron housing acts as a heat sink with cooling fins for convective cooling. Internal splash lubrication with full-synthetic 75W-140 ensures all surfaces maintain a protective oil film. Ptfe Rotary Seals at each shaft opening block contaminants while retaining lubricant.

🔁 Direct Interchange — Front Loader Gearbox Compatibility

Product names below serve as a compatibility guide for replacement purposes. No endorsement or sponsorship by the listed brands is implied.

私たちの Front Loader agricultural gearbox is a verified drop-in replacement for these brands and models:

AGCO: Mk-I, C-665, Type 57B — ✅ dimensionally verified
Same: 248T, Model 7349, E-548 — ✅ dimensionally verified
Valtra: Series 272, Mk-III, E-337 — ✅ dimensionally verified
Fantini: Model 6223, Mk-IV, B-380 — ✅ dimensionally verified
Pöttinger: G8.1, Type 50G, Series 390 — ✅ dimensionally verified
Branson: 598T, Series 476, Type 82C — ✅ dimensionally verified

Rebuild Kits & Parts

⚙ Bearings

🔒 Seals

⚙ Gears

🔧 Shafts

🎯 Front Loader Gearbox Sizing Guide — Get the Right Fit First Time

Getting the right gearbox for your loader attachment requires confirming these seven parameters before you order. Our engineering team can help you through each step if needed.

1. Working Hours per Season
Estimate your annual operating hours for the front loader to determine appropriate service life rating.
Importance: High-hour operations justify premium bearing and gear specifications for lowest cost per hour.

2. Required hydraulic pump drive Speed
Refer to your front loader manufacturer’s manual for the recommended hydraulic pump drive operating speed.
Importance: Together with PTO speed, this defines the exact gear ratio your gearbox needs.

3. Power Requirement
Match the gearbox HP rating to your tractor’s PTO horsepower output and the front loader’s demand.
Importance: Under-rating leads to overheating and premature failure; over-rating adds unnecessary cost and weight.

4. Rotation Direction
Determine whether the hydraulic pump drive on your front loader requires clockwise or counter-clockwise output when viewed from the drive end.
Importance: Incorrect rotation direction will damage the implement or produce no useful work.

5. Operating Environment
Assess exposure to dust, moisture, chemicals, and temperature extremes in your typical front-end loading conditions.
Importance: Determines the appropriate seal grade, surface coating, and housing material specification.

6. Existing Gearbox Identification
Record the brand, model number, and any part numbers from the nameplate of the gearbox being replaced.
Importance: Speeds up the matching process and ensures dimensional compatibility with your loader attachment.

7. Torque Demand
Calculate the peak torque your front-end loading application generates — including shock loads from obstacles or material variations.
Importance: The gearbox must handle peak torque without activating overload protection during normal operation.

💡 プロのヒント： Ordering tip: if replacing an existing gearbox, measure the input/output shaft diameters and mounting bolt pattern as a minimum. With these three dimensions, our team can match the correct unit from our catalogue or design a custom solution.

🔧 Technician’s Installation Manual — Front Loader Gearbox

Follow these instructions for a successful installation of your new Front Loader gearbox. Correct installation is critical for achieving maximum service life and warranty coverage.

Step 1: Prepare the Mounting Surface

Clean the mounting flange on the front loader frame with a wire brush and solvent, removing all old sealant, rust, and debris. Inspect the mounting surface for cracks, stripped threads, or warping. Chase any damaged bolt threads with a tap. Apply a thin film of anti-seize compound to the mounting face if specified.

Step 2: Drain & Document Old Gearbox

Locate the drain plug on the existing gearbox and position a catch container underneath. Remove the drain plug and allow all oil to drain completely — inspect the oil for metal particles or discolouration that may indicate internal wear. Record the old gearbox model number, mounting bolt size, and shaft dimensions for reference.

Step 3: Position & Secure New Gearbox

Carefully lift the new Front Loader gearbox into position on the mounting flange, aligning all bolt holes. Insert mounting bolts hand-tight first, confirming proper alignment. Once all bolts are started, torque them in a star (cross) pattern to the value specified in the installation manual. Verify the gearbox sits flush against the frame with no gaps.

Step 4: Test Run & Break-In

トラクターを始動し、低回転数（約300回転/分）でPTOを作動させます。異音（研磨音、うなり音、ノッキング音、カチカチ音など）がないか注意深く聞いてください。15～20分間低速で運転し、ギアボックスハウジングの温度を（注意深く）手で監視します。すべてのシールと取り付け面からのオイル漏れがないか確認してください。徐々に最高運転速度まで上げていきます。

ステップ5：古いギアボックスを取り外す

PTOドライブシャフトをギアボックスの入力シャフトから切り離します。フロアジャッキまたは天井クレーンでギアボックスの重量を支えます（一般的な重量：モデルによって15～70kg）。締め付け応力を均等に解放するため、すべての取り付けボルトを十字型に外します。古いギアボックスを慎重に下ろし、脇に置きます。

Step 6: Fill With Lubricant

注入口プラグを取り外し、レベルインジケーターに達するまで推奨ギアオイルをゆっくりと注入します。ギアボックスの取扱説明書に記載されている潤滑油グレード（通常はSAE 80W-90 GL-5または同等品）を使用してください。注入口プラグを元に戻し、手で締めた後、レンチでしっかりと締めます。ブリーザーキャップが清潔で、詰まりがないことを確認してください。

Step 7: Connect PTO Driveline

PTOドライブラインをギアボックスの入力シャフトに合わせ、ロック機構がかみ合うまでヨークをスプラインにスライドさせます。スプラインの数が一致していることを確認してください（540 RPMの場合は6スプライン、1000 RPMの場合は21スプライン）。ドライブラインの動作角度が15°を超えないことを確認してください。角度が大きすぎると、ユニバーサルジョイントの早期破損や振動の原因となります。

⚠ 重要: Always consult the specific installation manual shipped with your Front Loader gearbox for model-specific torque values and procedures.

⚠ Fault Diagnosis Guide — Front Loader Gearbox

Use this diagnostic reference to identify and resolve common Front Loader gearbox issues in the field. Most problems can be diagnosed and addressed without removing the gearbox from the front loader.

⚠ PTO作動時にギアボックスから金属的なカチッという音がする

推定原因： Overload protection mechanism is loose

推奨される行動： PTO作動時のみに発生する異音（運転中は発生しない）は、通常、ドライブシャフトのバックラッシュを示しています。ドライブシャフトの伸縮チューブの摩耗を確認してください。運転中に異音が発生する場合は、内部摩耗によるギアのバックラッシュ過多が考えられます。異音が徐々に大きくなる場合は、ギアボックスの点検を受けてください。

⚠ 運転中の過度の振動

推定原因： Unbalanced hydraulic pump drive or damaged output coupling

推奨される行動： First check all mounting bolt torques — vibration frequently loosens fasteners, which then amplifies the vibration. Next, inspect the PTO driveline U-joints for wear or binding. Verify driveline angles are within specification. Finally, check the output coupling to the hydraulic pump drive for wear or damage.

⚠ PTOドライブラインとギアボックスの接続に問題があります

推定原因： Incorrect spline count (540 vs 1000 RPM mismatch)

推奨される行動： 入力シャフトのスプラインをワイヤーブラシで清掃し、焼き付き防止剤を薄く塗布します。PTOシャフトをゆっくりと回転させながら押し込み、スプラインを合わせます。スプラインがかみ合わない場合は、スプライン数がPTOの規格と一致していることを確認してください（540 RPMの場合は6スプライン、1000 RPMの場合は21スプライン）。

⚠ 入力軸が回転している間、出力軸の回転が停止します

推定原因： Internal shaft fracture

推奨される行動： まず過負荷保護装置を確認してください。ギアボックスに最近急激な過負荷がかかった場合は、これが最も可能性の高い原因です。マニュアルに従って、せん断ボルトを交換するか、スリップクラッチをリセットしてください。過負荷保護装置に異常がない場合は、ギアボックス内部に損傷があり、専門業者による修理が必要です。

⚠ Oil Leaking from Shaft Seals

推定原因： Scored or corroded shaft surface under seal lip

推奨される行動： First, check and correct the oil level — overfilling is a surprisingly common cause of seal leaks. Clean or replace the breather cap. If oil level is correct and breather is clear, the seal has worn and should be replaced using our seal kit.

上記の手順で問題が解決しない場合は、技術サポートチームにお問い合わせください専門家による診断をご希望の場合は、遠隔でのトラブルシューティングや、重大な故障状況における代替機の派遣も承ります。

📍 Real-World Performance — Front Loader Gearbox Across Australia

Our agricultural gearboxes are field-proven across every Australian state and territory. Below are documented case studies from recent Front Loader gearbox installations.

📍 Case #1: Wagga Wagga, NSW

お客様：	Peter Henderson — family-run farming operation
位置：	Wagga Wagga, NSW
農場規模：	6000 acres
応用：	Front Loader gearbox for front loader — front-end loading
購入理由：	Scheduled preventive replacement as part of an annual maintenance program

“We replaced the original gearbox after it started leaking at 1007 hours. The new unit from MowerGearbox has now done 2059 hours without a single issue. The difference in build quality is obvious just from the weight and finish.”
— Peter Henderson, Wagga Wagga, NSW

Ken Yates — Mildura, VIC

手術： commercial front-end loading contractor | サイズ： 1500 acres | 使用： Front Loader gearbox for front-end loading

購入理由： Retrofit older model front loader with improved gearbox for extended service life

「シーズン途中でギアボックスが致命的な故障を起こしたため、交換用として取り付けました。MowerGearboxユニットは4日以内に届き、完璧にフィットしました。その後、シーズンを問題なく終えることができました。大変満足しています。」

📍 Warwick, QLD grain and livestock property — 1000 acres

クライアント： Paul Hutchinson | 応用： Front Loader gearbox — front-end loading

目的： Fleet standardisation — transitioning all front loader equipment to a single gearbox supplier

“Our front loader contractor business depends on zero downtime during the season. These gearboxes have given us that reliability. In 2 years of use across 4 machines, we have had exactly zero gearbox-related breakdowns.”

📍 Case #4: Devonport, TAS

お客様：	Michael O’Brien — large-scale pastoral property
位置：	Devonport, TAS
農場規模：	450エーカー
応用：	Front Loader gearbox for front loader — front-end loading
購入理由：	シーズン途中の緊急交換。オリジナルのギアボックスが壊滅的な故障を起こしたため。

“We stress-test our equipment in ways that would void most warranties. This gearbox has handled everything we’ve thrown at it — corrosive chemical exposure — without complaint.”
— Michael O’Brien, Devonport, TAS

Howard Atkins — Tamworth, NSW

手術： specialist front loader operator | サイズ： 300 acres | 使用： Front Loader gearbox for front-end loading

購入理由： New equipment build — specifying aftermarket gearbox as OEM improvement

「決め手となったのは、包括的な保証でした。除外事項も細かい条項も一切ありませんでした。異音について質問した際（ギアボックスではなく、駆動系の問題だったことが判明しました）、電話で無料で診断してくれました。」

💬 Common Questions About Our Front Loader Gearbox

🔹 What payment and ordering options do you offer?

We accept bank transfer, credit card, and purchase orders from established accounts. For large orders, we offer 30-day payment terms subject to credit approval. Orders can be placed through our website, by email, or by phone. Pro-forma invoices are available for pre-payment arrangements.

🔹ギアボックスは現場で整備またはオーバーホールできますか？

定期点検（オイル交換、シール交換、ベアリング点検）は、標準工具を使用して現場で実施できます。大規模なオーバーホールには、ベアリング、シール、ガスケットを含む完全なオーバーホールキットをご用意しています。詳細なサービスマニュアルとビデオガイドは、サポートポータルからダウンロードできます。

🔹ギアボックスにはどのような書類が同梱されていますか？

すべてのギアボックスには、トルク仕様、潤滑およびメンテナンススケジュール、個々の部品番号が記載された部品図、保証登録カード、およびユニットのシリアル番号とテスト結果が記載された品質検査証明書が同梱されています。

🔹 あなたのギアボックスは、純正のOEMユニットと比べてどうですか？

当社のギアボックスは、測定可能なすべてのパラメータにおいて、純正品と同等またはそれ以上の性能を発揮します。主な改良点としては、ベアリングクラスのアップグレード、優れたシール材の使用、放熱性能の向上、そして純正品カタログにはないカスタムギア比のオプションなどが挙げられます。その結果、純正品と交換するだけで、通常は純正品よりも長持ちする製品が実現しました。

🔹 大量購入割引を受けるには、最低注文数量はいくつ必要ですか？

We offer tiered pricing starting from single-unit purchases, with meaningful discounts beginning at 5+ units. Dealer and OEM pricing structures are available for agricultural equipment retailers and front loader manufacturers. Contact our sales team for a formal quotation tailored to your volume requirements.

🔹 How is the gearbox packaged for shipping?

Each gearbox is drained of shipping oil, wrapped in VCI (Vapor Corrosion Inhibitor) film, and crated in a sturdy plywood box rated for international freight. This packaging protects against moisture, impact, and corrosion during transit — even for shipments to remote Australian properties via road freight.

🔹 Will this gearbox fit older-model front loader equipment?

We maintain compatibility databases covering front loader models from the past 25+ years. Most older models can be directly fitted with our current gearbox range. For discontinued or rare models, send us the mounting dimensions and shaft specifications, and we will confirm fitment or design a custom adapter.

🔹 What is the expected lifespan under continuous front-end loading operation?

Our Front Loader gearbox is rated for 3,000 to 5,000+ operating hours with proper maintenance. Many customers in intensive Australian operations report achieving 5,000+ hours before requiring any internal service. Key factors affecting lifespan include oil change frequency, operating load, and environmental conditions.

🔹 What gear ratios are available for the front loader gearbox?

We offer a comprehensive range of ratios from 1:1 through 1:6 to match virtually any front loader configuration. Standard catalogue ratios ship within days; custom ratios can be manufactured within 2-3 weeks. Our engineers will recommend the optimal ratio based on your tractor PTO speed and front-end loading requirements.

🔹 Can the output shaft be customized for my specific front loader?

Absolutely. We manufacture gearboxes with keyed, splined, flanged, hex, and hollow-bore output shaft configurations. If your front loader requires a non-standard output size, spline count, or connection type, our engineering team will design and machine it to your exact specifications at no additional lead time for common modifications.

⚙ Build a Reliable Front-End Loading Powertrain

Maximize your front-end loading equipment reliability with these complementary products designed to work with our Front Loader gearbox.

PTO Shaft Range

Constant-velocity PTO shafts for high-angle front-end loading installations. Overload protection included. Matching splines for direct connection to our gearbox range.

View Range →

Gearbox Catalogue

Looking for gearboxes for other farm implements? Our product line spans tillage, harvesting, baling, spraying, and specialty applications.

Browse All →

⚖ Australian Standards & Front Loader Gearbox Compliance

Understanding the regulatory landscape helps ensure your front-end loading equipment meets all legal requirements. Our Front Loader gearboxes これらの基準を念頭に置いて設計されています。

業界および安全基準

● AS 1636 — Agricultural Machinery Safety: Our gearboxes meet design requirements for agricultural machinery components, including rotating part guarding interfaces.

● AGMA 2001 — Gear Tooth Rating: Gear designs validated against AGMA standards for bending strength and pitting resistance.

● ISO 12100 — Safety of Machinery: Gearbox design follows the general principles of risk assessment and risk reduction for front-end loading equipment.

State Legislation

● New South Wales (Work Health and Safety Regulation 2017) — requires documented maintenance records for all power-driven front loader machinery.

● Northern Territory (WHS (National Uniform Legislation) Regulations 2011) — applies federal standards to front-end loading operations territory-wide.

● Tasmania (WHS Regulations 2012) — mandates operator training for all PTO-driven front loader equipment.

Nationwide Delivery — From Metro to Remote

We deliver Front Loader agricultural gearboxes to every state and territory in Australia. Our logistics network covers major farming regions including the Wimmera, the Mallee, and Goulburn Valley, the North West Slopes, Hunter Valley, and Central West NSW, and the Atherton Tablelands, the Burdekin, and Mackay-Whitsunday. Whether you operate in a metropolitan fringe area or a remote pastoral station, we ship directly to your property with full tracking and delivery confirmation.

🚨 Let’s Find Your Perfect Front Loader Gearbox

Manufacturing Excellence — over two decades of Experience

We are a professional manufacturer of agricultural gearboxes and PTO drive systems. Our facility features:

Dedicated R&D team for custom and prototype gearbox development
Automated heat treatment with atmosphere-controlled furnaces
Automated gear hobbing, shaping, and grinding centres
Surface finishing: shot peening, superfinishing, and precision lapping
ISO 9001:2015 certified quality management with full batch traceability

Custom & Non-Standard Manufacturing

Our capabilities extend well beyond standard catalogue products. We design and build custom gear drives for front loader OEMs, implement manufacturers, and agricultural engineers who need precise mechanical solutions that off-the-shelf products cannot deliver.

Send us your drawings, samples, or specifications — and receive a quotation within 24 hours.

📧 Request a Quote

🏭 Learn About Our Company →

Your trusted partner for agricultural gearbox solutions — standard and custom — across Australia and worldwide.

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