Industrial-Strength Rotary Rake Gearbox — Reliable Power for Hay Raking
A quality gearbox separates productive hay raking from costly downtime. Our Rotary Rake agricultural gearbox is the product of advanced metallurgy, precision manufacturing, and extensive field validation across diverse Australian farming environments. The rotary rake gearbox drives one or more large tine arms that sweep cut hay into windrows. Mounted at the top of the rake mast, it converts PTO input into the circular sweeping motion of the rake arms while maintaining consistent ground-following through varying terrain.
Whether you are replacing a failed OEM unit or upgrading to a more durable solution, this gear drive offers drop-in compatibility with leading rotary rake brands and models — backed by engineering support from specification to installation.
📊 Detailed Specifications — Rotary Rake Agricultural Gearbox
私たちの rotary rake gearbox is manufactured to the following specifications. Custom engineering is available for non-standard hay raking applications.
| パラメータ | 価値 |
|---|---|
| 正味重量 | 32 kg |
| ベアリングの設計寿命（L10） | 6000 hours minimum |
| 反発 | ≤ 8 arc-minutes |
| 回転方向 | CCW standard (CW optional) |
| Recommended Lubricant | SAE 80W-90 GL-5 |
| Mounting Configuration | 6-bolt circular |
| 入力軸径 | 30 mm |
| 潤滑方法 | Forced circulation |
| ギア段数 | 3 |
| 設計基準 | ISO 6336 + FEA verified |
| パラメータ | 価値 |
|---|---|
| Gear Surface Hardness | HRC 58 – 64 |
| IP Protection Class | IP55 |
| 出力軸タイプ | Keyed shaft |
| 定格負荷時の効率 | 98% |
| 利用可能なギア比 | 1:1.5 to 1:3.5 |
| PTO Input Speed | 540 / 1000 RPM |
| Input Shaft Spline | 6-spline (1-3/8″) / 21-spline (1-3/4″) |
| ハウジング材 | Spheroidal Graphite Iron |
| 1mの距離での騒音 | ≤ 72 dB(A) |
| Centre Distance | 80 mm |
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 rotary rake model and hay raking conditions.
⭐ Why Professionals Choose Our Rotary Rake Gearbox
We believe in transparency. These are the specific, verifiable differences between our Rotary Rake gear drive and low-cost alternatives:
| 仕様 | Low-Cost Alternative | Our Engineered Rotary Rake Gearbox |
|---|---|---|
| Spare Parts | Parts vary batch to batch | Standardized parts across model range |
| 保証とサポート | 6-month limited warranty, difficult claims process | Full 2-year warranty + engineer hotline + install support |
| Operating Efficiency | 80-88% — varies wildly between units | 95-97% — independently verified on calibrated dynamometer |
| 住宅設計 | Welded steel fabrication, dimensional inconsistency | Spheroidal graphite iron (SG700), CNC-machined bearing bores, integrated cooling fins |
| 表面保護 | ブラシで塗布したエナメル塗料、ムラのある仕上がり | Cathodic e-coat + powder coat, 1000-hr salt spray test |
| Expected Service Life | 300-800 hours before first major repair | 5,000-8,000 hours demonstrated in Australian commercial operations |
When your livelihood depends on your rotary rake performing during critical hay raking windows, a quality gearbox is essential. Choose the gearbox validated by millions of Australian field hours.
⚙ From PTO to Tine Arm Drive — Rotary Rake Gearbox Anatomy
私たちの Rotary Rake agricultural gearbox is a specialized power transmission unit for hay raking:
▶ PTO Power Input
▶ Gear Reduction & Torque Multiplication
▶ Output to Tine Arm Drive
▶ Lubrication & Protection
🔄 Which OEM Rotary Rake Gearboxes Does Ours Replace?
Cross-reference data is provided as a customer service. All brand names and model numbers remain the intellectual property of their respective owners.
私たちの Rotary Rake gearbox directly replaces the factory gear drive on the following rotary rake brands:
Type 56J, K-484
✅ Compatible
Series 269, Model 5207
✅ Compatible
Model 3913, Type 14F
✅ Compatible
G4.5, Model 2245
✅ Compatible
Mk-III, Type 30A
✅ Compatible
Type 16J, G-173
✅ Compatible
Model 2195, Mk-V
✅ Compatible
Parts & Service Support
- Bearing rebuild kits with spacers and shims
- Seal & gasket replacement kits
- Matched gear pairs — pinion and wheel
- Input and output shaft assemblies
📚 Selection Flowchart — Find Your Perfect Rotary Rake Gearbox
ご注文の前に Rotary Rake gearbox完璧な適合性と性能を確保するために、以下の重要なパラメータを確認してください。
Tractor PTO Speed
Check your tractor’s PTO specification — standard is 540 RPM or 1000 RPM
Determines the input shaft spline size and the baseline for ratio calculation
Operating Environment
Assess exposure to dust, moisture, chemicals, and temperature extremes in your typical hay raking conditions
Determines the appropriate seal grade, surface coating, and housing material specification
出力軸タイプ
Identify the coupling type on your rotary rake — keyed, splined, flanged, or hollow bore
出力の不一致は高価なアダプタカップリングを必要とし、潜在的な故障箇所を生み出す。
電力要件
Match the gearbox HP rating to your tractor’s PTO horsepower output and the rotary rake’s demand
定格が低すぎると過熱や早期故障につながり、定格が高すぎると不必要なコストと重量が増加する。
回転方向
Determine whether the tine arm drive on your rotary rake requires clockwise or counter-clockwise output when viewed from the drive end
回転方向が間違っていると、作業機が損傷したり、有効な作業ができなかったりします。
Required tine arm drive Speed
Refer to your rotary rake manufacturer’s manual for the recommended tine arm drive operating speed
PTO速度と合わせて、ギアボックスに必要な正確なギア比を決定します。
トルク要求
Calculate the peak torque your hay raking application generates — including shock loads from obstacles or material variations
ギアボックスは、通常運転時に過負荷保護を作動させることなく、最大トルクを処理できなければならない。
💡 プロのヒント： Not sure which model you need? Our selection engineers have cross-referenced thousands of rotary rake gearbox applications. Send us any information you have — even partial — and we will find the right match. こちらからお問い合わせください.
📝 How to Install Your New Rotary Rake Agricultural Gearbox
This guide covers the complete process of replacing the gearbox on your rotary rake. Each step includes specific details for hay raking equipment — follow them in sequence for best results.
Step 1 — Connect PTO Driveline
Slide the PTO driveline yoke over the gearbox input spline. Ensure full engagement — the yoke should slide past the retaining groove and click into place. Test the engagement by pulling firmly on the yoke; it should not detach. Verify that the driveline length allows adequate telescoping stroke throughout the full range of implement movement.
Step 2 — Prepare the Mounting Surface
Scrape any old gasket material or RTV sealant from the rotary rake’s gearbox mounting face. Use a flat file to remove any burrs around bolt holes. Verify all mounting holes align correctly by test-fitting the new gearbox without bolts. Check for flatness — a feeler gauge should show less than 0.1mm across the mounting surface.
Step 3 — Test Run & Break-In
With the rotary rake raised or in a safe test position, start the PTO at idle speed. Observe the gearbox for any vibration, unusual noise, or oil seepage. Run for 20 minutes at reduced speed. If all is normal, increase to the operating PTO speed and run for an additional 10 minutes while monitoring temperature. Re-check all mountings.
Step 4 — Remove Old Gearbox
Detach the driveline yoke from the gearbox input. If the gearbox also has an output coupling to the tine arm drive, disconnect that as well. Support the gearbox from below with a hydraulic jack. Remove the mounting fasteners progressively, keeping at least two bolts finger-tight until you are ready to slide the unit out.
Step 5 — Drain & Document Old Gearbox
Place a collection pan beneath the gearbox. Remove both the fill and drain plugs to speed drainage. While oil drains, photograph the gearbox nameplate, mounting arrangement, and driveline connection — these images are invaluable if questions arise during installation of the new unit.
Step 6 — Connect Output to tine arm drive
Connect the output coupling to the tine arm drive drive on your rotary rake. Ensure the shaft engagement depth meets the minimum specified in the manual. Tighten all retaining hardware to the correct torque value. After connection, rotate the output by hand to verify smooth, unrestricted movement.
Step 7 — Safety Preparation
Position the rotary rake on a flat, stable surface and immobilize the tractor. Disengage the PTO and shut down the engine. Remove the ignition key to prevent accidental start-up. Wait at least 15 minutes for hot surfaces to cool. Gather your tool kit: socket set, torque wrench, clean containers for oil, and the installation manual.
Step 8 — Post-Installation Checks (10-Hour Service)
Perform a 10-hour service: re-check mounting bolt torque, inspect for leaks, verify oil level, and confirm the PTO safety guard is in place. Clean any accumulated debris from the gearbox housing to maintain effective heat dissipation. Log the installation details in your equipment maintenance records.
⚠ 重要: For safety, never work under unsupported equipment. Use proper lifting devices when handling the gearbox unit.
🔎 Diagnostic Checklist — Rotary Rake Gearbox
Even the best-engineered gearbox may encounter operational issues over its service life. This guide covers the most common symptoms reported with rotary rake gearboxes and provides actionable field solutions.
⚠ 運転中の過度の振動
Likely cause: 取り付けボルトが緩んでギアボックスが動く
What to do: Vibration in a rotary rake gearbox system usually originates from the driveline, not the gearbox itself. Inspect the PTO shaft U-joints — a worn joint creates a twice-per-revolution vibration pulse. Confirm the driveline is the correct length for the tractor-to-implement distance. Re-torque the gearbox mounting bolts.
⚠ Oil Leaking from Shaft Seals
Likely cause: Blocked breather vent preventing pressure relief
What to do: Inspect the breather cap — a blocked breather pressurizes the housing and forces oil past seals. Replace the breather and clean any debris. If leaking continues, replace the affected seal. Check the shaft surface under the seal for grooves or corrosion that may be cutting the seal lip.
⚠ 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
Likely cause: PTOドライブラインが長すぎるため、エンゲージメントに影響が出ている
What to do: Check the PTO driveline length — a driveline that is slightly too long will ‘bottom out’ on engagement, creating a sharp metallic sound. Verify all external hardware (mounting bolts, guard brackets, driveline clamps) is secure. If the sound comes from inside the gearbox under load, internal inspection is recommended.
⚠ 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
Likely cause: PTOヨークの係合面が損傷または摩耗している
What to do: Apply penetrating oil to the input splines and allow it to work for 5 minutes. Rotate the PTO driveline slightly while applying light pressure — the splines need to index before engaging. If the driveline yoke is worn, replace it before installation to prevent premature input bearing failure.
⚠ Abnormal Grinding or Whining Noise
Likely cause: Bearing wear or race damage
What to do: Check oil level immediately — low oil is the most common cause of gear noise in rotary rake gearboxes. If oil level is correct, the lubricant may have degraded — perform a complete oil change. Persistent noise indicates internal wear requiring professional assessment.
For persistent or complex issues, our engineers provide remote diagnostic support via phone and email. We can also supply rebuild kits for in-workshop repairs. Reach our support team here.
📍 Verified Case Studies — Rotary Rake Gearbox Performance Reports
Our agricultural gearboxes are field-proven across every Australian state and territory. Below are documented case studies from recent Rotary Rake gearbox installations.
Ed Pearce — Wangaratta, VIC
手術： multi-generational family farm | サイズ： 3500 acres | 使用： Rotary Rake gearbox for hay raking
購入理由： Replace failed OEM gearbox to restore rotary rake for the upcoming season
“We stress-test our equipment in ways that would void most warranties. This gearbox has handled everything we’ve thrown at it — heavy clay soils — without complaint.”
📍 Case #3: Dalby, QLD
| お客様： | Greg McPherson — mixed farming enterprise |
| 位置： | Dalby, QLD |
| 農場規模： | 300 acres |
| 応用： | Rotary Rake gearbox for rotary rake — hay raking |
| 購入理由： | New equipment build — specifying aftermarket gearbox as OEM improvement |
“The oil-tight sealing on this gearbox is remarkable. After 1406 hours of operation in wet environment, the oil comes out clean at service time. Previous gearboxes always had contaminated oil by the first oil change.”
— Greg McPherson, Dalby, QLD
Paul Hutchinson — Bundaberg, QLD
手術： commercial hay raking contractor | サイズ： 6000 acres | 使用： Rotary Rake gearbox for hay raking
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。
“Fast delivery to a remote location was the initial reason I tried this supplier. The gearbox quality is what made me a repeat customer — we have now standardised on their products across our fleet of 5 rotary rake machines.”
💬 Expert Answers: Rotary Rake Gearbox Buyer’s Questions
Q1: Will this gearbox fit older-model rotary rake equipment?
We maintain compatibility databases covering rotary rake 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.
Q2: Can this gearbox withstand the shock loads generated during hay raking?
The gearbox is specifically designed for the dynamic and impact loading characteristic of hay raking applications. Case-hardened alloy steel gears absorb repetitive shocks, while the optional overload protection (shear bolt or slip clutch) safeguards against catastrophic overload events. The bearing selection and housing rigidity are both matched to rotary rake load profiles.
Q3: 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.
Q4: What documentation ships with the gearbox?
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。
Q5: Do you provide technical support after purchase?
Yes — every purchase includes access to our engineering support team for installation guidance, troubleshooting, maintenance advice, and parts ordering. Support is available via phone, email, and our online contact form. There is no charge for technical support during or after the warranty period.
Q6: What is the expected lifespan under continuous hay raking operation?
Our Rotary Rake 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.
Q7: 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.
Q8: Do you deliver to remote farming areas in Australia?
はい、オーストラリア全土の郵便番号地域（遠隔地や地方を含む）へ配送いたします。季節ごとの機器ニーズの緊急性を理解している経験豊富な農業貨物運送業者を利用しています。緊急故障時には速達便をご利用いただけます。また、人気モデルは即日発送できるよう在庫を確保しています。
Q9: Which gear oil do you recommend for Australian conditions?
For most Australian climates, SAE 80W-90 EP gear oil meeting GL-5 specification is ideal. In tropical regions with sustained high temperatures, we recommend 85W-140. For southern regions experiencing cold winters, synthetic 75W-90 provides better cold-start protection. Check the oil specification card shipped with your gearbox for the definitive recommendation.
Q10: Can the output shaft be customized for my specific rotary rake?
Absolutely. We manufacture gearboxes with keyed, splined, flanged, hex, and hollow-bore output shaft configurations. If your rotary rake 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.
🔧 Essential Accessories for Rotary Rake Applications
Maximize your hay raking equipment reliability with these complementary products designed to work with our Rotary Rake gearbox.
⚡ PTO Drive Shaft for Your Rotary Rake
Wide-angle PTO shafts with telescoping capability and friction clutch overload protection. Designed to mate perfectly with our Rotary Rake gearbox input spline.
⚙ 農業用ギアボックスのフルラインナップ
Multi-machine operators benefit from our comprehensive gearbox catalogue — standardised quality, consolidated shipping, and volume pricing across the full range.
📜 Australian Compliance & Regulations — Rotary Rake Gearboxes
Understanding the regulatory landscape helps ensure your hay raking equipment meets all legal requirements. Our Rotary Rake gearboxes これらの基準を念頭に置いて設計されています。
Standards Compliance
| Standard | Relevance |
|---|---|
| AS 4024 — Safeguarding of Machinery | Our products comply with Australian machinery safeguarding standards applicable to agricultural rotary rake equipment. |
| AS 1636 — Agricultural Machinery Safety | Our gearboxes meet design requirements for agricultural machinery components, including rotating part guarding interfaces. |
State-Level WHS Requirements
- New South Wales — Work Health and Safety Regulation 2017: requires documented maintenance records for all power-driven rotary rake machinery.
- Western Australia — WHS (General) Regulations 2022: includes obligations for remote farm operations involving hay raking equipment.
- South Australia — WHS Regulations 2012: requires regular inspection of all machinery with rotating drive components.
Nationwide Delivery — From Metro to Remote
We deliver Rotary Rake agricultural gearboxes to every state and territory in Australia. Our logistics network covers major farming regions including the Darling Downs, the Lockyer Valley, and the Burnett region, Western Districts VIC, Gippsland, and the North East, 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.
🎯 Take the Next Step — Rotary Rake Gearbox Solutions
15+ Manufacturing Heritage
Producing 100,000+ agricultural gearboxes annually for customers in more than 45 countries. Key capabilities: cmm (coordinate measuring machine) dimensional inspection, vibration analysis and noise measurement on every production batch, automated gear hobbing, shaping, and grinding centres.
We welcome custom orders: We specialise in non-standard, custom-designed gear drives built to your exact requirements. Whether you need a unique ratio, modified housing, non-standard shaft, or a bespoke gearbox for your rotary rake, we deliver — from prototype to volume production.
Your trusted partner for agricultural gearbox solutions — standard and custom — across Australia and worldwide.
