Premium PTO Shaft Solution for Combine Harvesters Operations
Efficient grain crop harvesting and threshing with a combine harvester hinges on the quality of its PTO shaft connection. Our PTO shaft for combine harvester is purpose-designed to transfer tractor power reliably across varying field conditions. From the universal joints to the telescoping tubes, every component is selected for durability and compatibility with leading tractor brands. Explore our full range of PTO shafts.
Technical Specifications – Combine Harvesters PTO Shaft
| パラメータ | 仕様／カスタマイズ可能な範囲 |
|---|---|
| 応用 | Combine Harvesters |
| 推奨トラクター馬力 | 120–500 HP |
| PTO速度 | 540 rpm (Economy) |
| 最大連続トルク | 1500–4500 Nm |
| 最大トルク容量 | 6750 Nm |
| シャフトシリーズ | T6 / L6 (Super heavy duty) / T7 / L7 (Ultra heavy duty) / T8 / L8 (Extreme duty) |
| 組み立て重量 | 12–20 kg (varies by length) |
| ヨーク素材 | Forged steel (40Cr) |
| チューブプロファイル | Star profile or Triangular profile |
| ガードカラー | オレンジ（RAL 2004） |
| 作業機エンドヨークオプション | Flange yoke / Splined yoke (1-3/4″ 6-spline) |
| 過負荷保護オプション | Shear bolt torque limiter / Friction clutch torque limiter / Cam-release clutch |
| Uジョイントベアリングタイプ | Greased needle roller |
| スプライン硬度 | HRC 55-60 |
| Universal Joint Cross Size | 23.8×61.3 mm / 36×89 mm / 30.2×92 mm |
| Safety Guard Material | Metal-reinforced composite / Injection-moulded PP (polypropylene) |
| 推奨潤滑剤 | EP2リチウム |
| 閉じた状態の長さ（L）ミニ) | 1000–1800 mm (customisable) |
| Outer Tube Diameter | 54 mm |
| Maximum Extended Length | 2123 mm |
How the PTO Shaft Operates in Combine Harvesters Applications
The PTO shaft serves as the mechanical bridge between tractor and combine harvester. Mounted between the tractor’s rear PTO outlet and the implement’s input connection, it converts the tractor’s stationary-axis rotation into a flexible, articulating power stream that can follow the implement through field manoeuvres.
Internally, two precision universal joints provide up to 25° of operating angle, while the profile tube telescopes to accommodate the variable distance between tractor and implement during grain crop harvesting and threshing. The shaft rotates at the selected PTO speed, delivering continuous torque to power the combine harvester’s working components.
Built into the assembly is a torque-limiting device—either a friction clutch, shear bolt, or cam-release mechanism—positioned at the implement end. This device automatically disengages when torque exceeds a set threshold, preventing damage to both the PTO shaft and the combine harvester’s internal gearing.
Core Advantages of Our PTO Shaft for Combine Harvesters
⚙ Needle-Bearing U-Joints
Premium needle-bearing universal joints in our combine harvester PTO shaft handle higher radial loads and last up to 3x longer than plain bearing alternatives.
🔨 Modular Assembly
Modular design lets you replace individual components—yokes, tubes, U-joints, guards—without replacing the entire shaft assembly.
🔒 Dual-Direction Protection
Overrunning clutches prevent reverse torque from damaged implements from feeding back into the tractor’s PTO gearbox.
⚖ Vibration-Dampened
Precision-machined profile tubes and balanced assemblies produce significantly less vibration, reducing operator fatigue during long shifts.
🛠 Colour-Coded Series
Series identification is simple with our colour-coded guard system—match the colour to your required torque rating instantly.
🌍 Fast Australian Delivery
Stocked in Australian warehouses for rapid dispatch—most orders ship within 48 hours to anywhere on the continent.
対応ブランドおよび互換性のある部品
Farmers and contractors running combine harvester equipment from ボンディオリ＆パヴェージ, メックライン, GKN Walterscheid, ウォルターシャイド, PTOライン, Driveline Parts 当社のPTOシャフトは、既存の製品と完全に互換性があります。当社は、数千ものOEM部品番号に対応する製品を網羅した包括的な互換性データベースを保有しています。
⚠ 第三者ブランドへの言及は、製品の選択および相互参照を容易にするためのみに提供されています。当社はこれらのブランドの製品を製造しておらず、また、これらのブランドの商標に対するいかなる権利も保有または主張していません。
交換部品
シャフトのすべての構成部品は個別のスペアパーツとして入手可能です。ユニバーサルジョイントキット、あらゆる標準ボアサイズのヨーク、様々な形状の伸縮チューブ、成形安全ガード、トルクリミッターアセンブリ、および完全なオーバーホールキットなどをご用意しています。豊富な供給体制により、シャフトは長年にわたって良好な状態を維持できます。
基準、方針、地域コンプライアンス
オーストラリア農業機械規格
Our PTO shafts for combine harvester applications are manufactured in compliance with the ASABE S203 (Guard dimensions) and ISO 5673 (PTO drive shaft interfaces) standards. These standards ensure dimensional compatibility and operational safety across all Australian farming environments.
環境への配慮
当社のPTOシャフトに使用されているすべての材料はRoHS指令に準拠しています。パッケージはリサイクル可能で、使用済みシャフトの環境に配慮した廃棄のための回収プログラムも提供しています。
地域別サービス範囲
当社は、地方や遠隔地を含むオーストラリア全州・準州において、サービスと技術サポートを提供しています。主要な農業地帯にある販売店は、当社の人気シャフトシリーズと交換部品を常時在庫しており、すぐに供給可能です。
PTO Shaft Selection Guide – Combine Harvesters
Selecting the right PTO shaft for your combine harvester is straightforward when you follow this step-by-step guide. Gather the information below before placing your order.
| ステップ | アクション | Details for Combine Harvesters |
|---|---|---|
| 1 | トラクターのPTO馬力を特定する | Typical: 120–500 HP for this application |
| 2 | PTO速度設定を確認してください | 540rpmまたは1000rpm（作業機の取扱説明書をご確認ください） |
| 3 | 閉じた状態の長さ（L）を測定しますミニ) | 1000–1800 mm |
| 4 | トラクターのPTOスプラインの数を数える | 6スプライン（1-3/8インチ）または6スプライン（1-3/4インチ）が最も一般的 |
| 5 | 実装入力接続を確認してください | スプライン、キー、またはフランジ入力 |
| 6 | トルク要件を計算する | 1500–4500 Nm |
| 7 | シャフトシリーズを選択してください | T6 / L6 (Super heavy duty) or T7 / L7 (Ultra heavy duty) |
| 8 | 過負荷保護を選択してください | Friction clutch recommended for combine harvester |
📌 お困りですか？ お問い合わせ 専門家の指導を受けるには。
Targeted Installation Procedure – Combine Harvesters PTO Shaft
⚠ 安全第一: PTOを解除し、エンジンを停止し、イグニッションキーを抜き、駆動系を作業する前にすべての可動部品が完全に停止するまで待ってください。ぴったりとした衣服や手袋など、適切な個人用保護具（PPE）を着用してください。
フェーズ1：準備
Lay out all shaft components and cross-reference against the packing list. Confirm the shaft series, closed length, and yoke specifications match your combine harvester setup. Grease all U-joint nipples and slide the profile tubes back and forth several times to distribute lubricant.
フェーズ2：長さの検証
With the combine harvester hitched to the tractor in its normal operating position, measure the PTO-to-input distance. The shaft must have a minimum of 1/3 tube overlap at full extension and must not bottom out at the shortest position. Trim the tubes if the factory length requires adjustment (refer to cutting instructions in the product manual).
フェーズ3：トラクター接続
トラクター側のヨークをPTOスタブに完全に押し込みます。クイックリリースカラーが保持溝にカチッとはまるはずです。ヨークを後ろに引いて、ロックされていることを確認してください。プレーンボアヨークを使用する場合は、せん断ピンを挿入し、割りピンで固定します。
フェーズ4：接続の実装
Connect the implement-end yoke to the combine harvester’s input. If a clutch assembly is fitted at this end, ensure the clutch housing is oriented with the grease nipple accessible. Tighten any set screws to the specified torque.
フェーズ5：ガードの取り付け
2つのガード半分をシャフトの周りに組み立てて、クリップで留めます。回転防止チェーンを取り付けます。1つはトラクターの固定ポイントに、もう1つは作業機のフレームに取り付けます。ガードがシャフトやヨークのどの部分にも接触することなく、手で自由に回転することを確認してください。
フェーズ6：運用テスト
Start the tractor, engage PTO at low idle, and run the combine harvester unloaded for two to three minutes. Check for vibration, abnormal noise, or heat at the U-joints. If all checks pass, proceed to normal operating speed and begin field work. Re-torque all fasteners after the initial run-in period.
PTO Shaft Troubleshooting Guide for Combine Harvesters
⚠ Heat build-up at U-joint
考えられる原因： Insufficient lubrication; excessive operating angle; bearing failure
推奨される行動： Grease U-joints immediately; reduce operating angle; replace cross kit if bearings are damaged
⚠ 通常負荷時に過負荷クラッチが滑る
考えられる原因： クラッチプレートの摩耗または汚染、あるいはトルク設定の誤り
推奨される行動： Adjust clutch torque setting; replace clutch plates if worn or oil-contaminated
⚠ Shear bolt breaks repeatedly
考えられる原因： Implement blockage not cleared; wrong bolt grade used; shaft undersized
推奨される行動： Clear blockage source; use only specified bolt grade; consider upgrading to next shaft series
⚠ Clicking or knocking noise at low speed
考えられる原因： Worn U-joint needle bearings; loose yoke on PTO stub
推奨される行動： Replace U-joint assembly; check spline wear and yoke locking mechanism
⚠ Unusual whining or grinding sound
考えられる原因： Gearbox input bearing failure; misaligned shaft
推奨される行動： Inspect implement gearbox; re-align tractor and implement; check shaft length overlap
⚠ Implement speed inconsistent
考えられる原因： PTO shaft slipping; worn splines; clutch partially engaged
推奨される行動： Check yoke engagement; replace yoke if splines are worn; adjust or replace clutch assembly
⚠ Excessive vibration during operation
考えられる原因： Worn U-joint cross bearings; shaft out of balance; excessive operating angle
推奨される行動： Replace U-joint cross kit; check yoke alignment; reduce operating angle to <25°
⚠ PTO shaft disconnects during operation
考えられる原因： Worn locking collar; damaged retaining groove on PTO stub
推奨される行動： Replace quick-release yoke; inspect and repair PTO stub groove if worn
Case Studies – PTO Shaft for Combine Harvesters in Australia
Field notes from our engineering and sales team across Australia:
📍 Kalgoorlie, WA – Dean Hartley
Purpose: Replaced a corroded shaft that had been exposed to chemical spray residues
Feedback: “Fitted perfectly to my combine harvester with zero modification. The quality is noticeably better than the OEM shaft it replaced. I’ll be ordering more for my other implements.”
📍 Warrnambool, VIC – Geoff Lawson
Purpose: Purchased a complete PTO shaft assembly as a spare for the busy season
Feedback: “The integrated friction clutch saved my gearbox when we hit a buried rock. The shaft disengaged instantly and re-engaged once the obstruction was cleared. Worth every cent.”
📍 Murray Bridge, SA – Robert Wilson
Purpose: Required a custom-length shaft for a non-standard tractor-to-implement spacing
Feedback: “I ordered a replacement cross kit six months later and it arrived within 48 hours. Great product, great service, great support.”
📍 Devonport, TAS – Neil Ferguson
Purpose: Replaced a worn PTO shaft on a 3-year-old combine harvester to restore full operating efficiency
Feedback: “The safety guards are solid and rotate freely. They actually meet the WHS requirements unlike the cheap ones you get from other suppliers.”
📍 Shepparton, VIC – Ian Stewart
Purpose: Upgraded from a light-duty shaft to a heavy-duty series for commercial-scale grain crop harvesting and threshing
Feedback: “We run our combine harvester hard across 2,000 hectares and this shaft hasn’t missed a beat after two full seasons. Exceptional value for money.”
Frequently Asked Questions – PTO Shaft for Combine Harvesters
❓ How often should I grease the PTO shaft?
Grease all U-joint nipples every 8–10 hours of operation, or at the start of each working day. Grease the telescoping profile tubes at the same interval. Use EP2 lithium-complex grease or as recommended in your product manual.
❓ What warranty do you offer on PTO shafts?
All PTO shafts carry a manufacturer’s warranty against defects in materials and workmanship. Warranty terms vary by series. Contact our team for specific warranty details applicable to your purchase.
❓ What is the difference between a shear bolt and a friction clutch?
A shear bolt is a sacrificial pin that breaks when torque exceeds its rated capacity. It is inexpensive but requires manual replacement after each event. A friction clutch slips when overloaded and automatically re-engages when the overload clears, offering uninterrupted operation in applications prone to frequent shock loads.
❓ What PTO shaft series do I need for my combine harvester?
For most combine harvester applications in the 120–500 HP range, we recommend the T6 / L6 (Super heavy duty) or T7 / L7 (Ultra heavy duty) series. If you operate near the upper end of this range or in particularly demanding conditions, consider stepping up to the S8 (Wide-angle) series for additional safety margin.
❓ Are your PTO shafts balanced?
Yes. All our PTO shaft assemblies are dynamically balanced during manufacture. This reduces vibration, extends bearing life, and provides smoother operation compared to unbalanced aftermarket alternatives.
❓ Do you ship to regional and remote Australia?
Absolutely. We ship to all Australian postcodes via major freight carriers. Regional and remote areas may have slightly longer transit times, but we work with multiple carriers to ensure reliable delivery across the country.
❓ Can the shaft be shortened to fit my setup?
Yes. The telescoping profile tubes can be cut to a shorter length using an angle grinder or chop saw. Ensure a minimum of 1/3 overlap remains between the inner and outer tubes after cutting. Deburr all cut edges before reassembly.
❓ Will this shaft fit my tractor and combine harvester?
Our PTO shafts are available with all standard yoke types and spline sizes (1-3/8" 6-spline, 1-3/4" 6-spline, 1-3/4" 20-spline, and more). Provide your tractor model and combine harvester make/model, and our team will confirm compatibility before dispatch.
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