{"id":2248,"date":"2026-05-08T09:29:40","date_gmt":"2026-05-08T09:29:40","guid":{"rendered":"https:\/\/www.agriculturalparts.top\/application\/pto-shaft-for-rotary-harrow-power-harrow\/"},"modified":"2026-05-08T09:29:40","modified_gmt":"2026-05-08T09:29:40","slug":"pto-shaft-for-rotary-harrow-power-harrow","status":"publish","type":"post","link":"https:\/\/www.agriculturalparts.top\/ko\/application\/pto-shaft-for-rotary-harrow-power-harrow\/","title":{"rendered":"PTO Shaft for Rotary Harrow \/ Power Harrow"},"content":{"rendered":"

PTO Shaft for Rotary Harrow & Power Harrow \u2014 Precision Seedbed Preparation Starts Here<\/h2>\n

The power harrow PTO shaft<\/strong> \u2014 sometimes called a rotary harrow cardan shaft<\/em> or vertical tine harrow drive shaft<\/em> \u2014 must meet unique demands compared to other tillage drivelines. Power harrows employ a series of counter-rotating vertical tine rotors running at 250\u2013400 RPM, creating the fine, level, stone-free tilth needed for precision sowing. This operating mode imposes broad, sustained torque loads with moderate shock \u2014 the defining engineering challenge for the shaft designer.<\/p>\n

Because power harrows are typically wider than rotary tillers (2.5\u20136 m for mounted models, up to 12 m for trailed versions), they are often driven at 1000 RPM<\/strong> to reduce drive-train torque for a given power input. Our 1000 RPM power harrow PTO shaft<\/strong> is engineered with smaller-cross-section CV joints rated for continuous duty, higher-grade forged yokes, and a heavy-duty friction torque limiter<\/strong> matched to the machine’s rated input power.<\/p>\n

\"Power<\/p>\n

Discover our complete agricultural drive shaft catalogue<\/a> or get a quote<\/a> for your power harrow application.<\/p>\n

Technical Specifications \u2014 PTO Shaft for Rotary Harrow \/ Power Harrow<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nStandard Value \/ Configuration<\/th>\nCustomisable Range<\/th>\n<\/tr>\n<\/thead>\n
Recommended Series<\/td>\nSeries 6 \/ Series 7<\/td>\nSeries 4\u20138<\/td>\n<\/tr>\n
PTO Speed<\/td>\n1000 RPM (standard)<\/td>\n540 \/ 1000 RPM<\/td>\n<\/tr>\n
Max Continuous Power<\/td>\nUp to 130 kW<\/td>\n30\u2013250 kW<\/td>\n<\/tr>\n
Peak Torque Rating<\/td>\n2,200 N\u00b7m<\/td>\n900\u20135,000 N\u00b7m<\/td>\n<\/tr>\n
Compressed Length<\/td>\n680\u2013860 mm<\/td>\n500\u20131,500 mm<\/td>\n<\/tr>\n
Extended Length<\/td>\n1,000\u20131,350 mm<\/td>\n750\u20132,200 mm<\/td>\n<\/tr>\n
Tube Profile<\/td>\nStar (6-point)<\/td>\nStar \/ Lemon \/ Hexagonal<\/td>\n<\/tr>\n
CV Joint Working Angle<\/td>\n\u00b140\u00b0 per side<\/td>\n\u00b125\u00b0 to \u00b180\u00b0<\/td>\n<\/tr>\n
Tractor Spline<\/td>\n1-3\/4″ \u00d7 20 spline<\/td>\n1-3\/8″\u00d76, 1-3\/4″\u00d720, 1-3\/8″\u00d721<\/td>\n<\/tr>\n
Machine Spline<\/td>\n1-3\/4″ \u00d7 20 spline (std)<\/td>\nCustomisable<\/td>\n<\/tr>\n
Overload Protection<\/td>\nMulti-disc friction clutch<\/td>\nFriction \/ Cam \/ Shear bolt<\/td>\n<\/tr>\n
Friction Clutch Slip Setting<\/td>\n1,400\u20132,000 N\u00b7m<\/td>\n500\u20134,500 N\u00b7m<\/td>\n<\/tr>\n
Guard System<\/td>\nFull-cone PE with integrated hinge<\/td>\nFull \/ Half cone<\/td>\n<\/tr>\n
Guard Rotation Prevention<\/td>\nIntegrated hinge + chain anchor<\/td>\nChain \/ Strap \/ Hinge<\/td>\n<\/tr>\n
Lubrication Points<\/td>\n6 (4\u00d7 CV, 2\u00d7 profile)<\/td>\n4\u20138<\/td>\n<\/tr>\n
Grease Specification<\/td>\nNLGI #2 Lithium Complex EP<\/td>\nNLGI #1\u2013#3<\/td>\n<\/tr>\n
Tube Wall Thickness<\/td>\n4.0 mm (outer)<\/td>\n2.5\u20136.0 mm<\/td>\n<\/tr>\n
Yoke Centre Distance<\/td>\n106.5 mm (S6 cross)<\/td>\n52.0\u2013160.0 mm<\/td>\n<\/tr>\n
Finish<\/td>\nYellow chromate zinc over zinc phosphate<\/td>\nVarious<\/td>\n<\/tr>\n
Temperature Rating<\/td>\n-30 \u00b0C to +80 \u00b0C<\/td>\n-40 \u00b0C to +100 \u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

How the Power Harrow PTO Shaft Works \u2014 Mechanism and Structure<\/h2>\n

In a power harrow drivetrain, the PTO shaft bridges the tractor’s rear power take-off (rotating at 1000 RPM) and the harrow’s central input gearbox. From the input gearbox, power fans out via a secondary chain or gear system to each rotor column. Because the harrow spans the full tractor working width (2.5 m+) and typically hinges at the centre for transport, the driveshaft must accommodate both the vertical articulation of the 3-point linkage and the side-fold geometry of larger models \u2014 hence the use of wide-angle CV joints at both ends<\/strong>.<\/p>\n

The multi-disc friction clutch<\/strong> \u2014 housed in the tractor-end bell \u2014 uses a stack of alternating steel and friction plates clamped by a Belleville spring assembly. When a stone or root stops a tine rotor, torque spikes through the gearchain to the driveshaft. The friction plates slip as a controlled unit, absorbing energy as heat rather than transmitting it as shock. Unlike shear bolts, the friction clutch re-engages automatically after the obstruction passes, making it ideal for high-speed, high-frequency shock environments like seedbed preparation on cultivated paddocks with occasional flint or limestone stone.<\/p>\n

\"Power<\/p>\n

Core Advantages of Our PTO Shaft for Rotary Harrow \/ Power Harrow<\/h2>\n
\n
\n

1000 RPM Optimised Design<\/strong><\/p>\n

Balanced at 1000 RPM for zero vibration \u2014 critical for high-speed tine rotors that amplify any driveline imbalance into surface finish defects in the seedbed.<\/p>\n<\/div>\n

\n

Multi-Disc Friction Clutch<\/strong><\/p>\n

10-plate clutch stack dissipates energy reliably across thousands of slip events without degradation \u2014 tested to 100,000 cycles at rated torque.<\/p>\n<\/div>\n

\n

\u2b50 6-Point Star Profile Tube<\/strong><\/p>\n

Higher torque-per-unit-weight than triangular profile; standard across European power harrow OEMs including Horsch and P\u00f6ttinger.<\/p>\n<\/div>\n

\n

Precision Balance Certification<\/strong><\/p>\n

Each shaft dynamically balanced to ISO 1940 G6.3 standard \u2014 eliminating resonance that can cause bearing failures in 1000 RPM applications.<\/p>\n<\/div>\n

\n

Ready-to-Ship Stock Programme<\/strong><\/p>\n

40+ standard configurations held in warehouse \u2014 most power harrow applications ship within 24 hours of order confirmation.<\/p>\n<\/div>\n

\n

Full Compliance Documentation<\/strong><\/p>\n

CE Declaration of Conformity, material certs, and dimensional inspection reports supplied with each shaft \u2014 essential for reseller and OEM customers.<\/p>\n<\/div>\n<\/div>\n

Brand Compatibility, Spare Parts & Cross-References<\/h2>\n

Our pto shaft for rotary harrow \/ power harrow<\/strong> is engineered as a direct drop-in replacement<\/strong> for shafts supplied as original equipment on the following brands: Horsch, P\u00f6ttinger, Lemken, Amazone, Kverneland, Maschio, Quivogne, Dal-Bo<\/strong>. We maintain a live cross-reference database of over 12,000 entries to confirm fit before dispatch.<\/p>\n

\u26a0\ufe0f Disclaimer: Referenced for parts identification purposes only. No trademark or commercial affiliation implied.<\/em><\/p>\n

Spare parts available separately:<\/strong> Cross-kits (standard & sealed) \u00b7 Locking yoke collars \u00b7 Friction disc sets \u00b7 Shear bolt kits \u00b7 Guard sets \u00b7 Replacement cones \u00b7 Grease nipples \u00b7 Bearing cups<\/p>\n

\u2192 Browse all PTO shaft spare parts and accessories<\/a><\/p>\n

Regulations, Compliance & Regional Demand<\/h2>\n

Applicable Standards:<\/strong> Standards: EN ISO 5673-1:2014+A1:2019, ASABE S203.12. Australian compliance: AS 4024.3601:2014 (Safeguarding of machinery \u2014 rotating parts). ISO 11684 (Safety signs on guards). Relevant WHS legislation: Model WHS Regulations r.208 (Rotating plant guarding).<\/p>\n

Key Australian Demand Regions:<\/strong> Key demand areas: Yorke Peninsula SA, Riverina NSW, Victorian Mallee, Wheatbelt WA, Darling Downs QLD.<\/p>\n

Our products are shipped from bonded warehouse with full compliance documentation including: CE Declaration of Conformity (where applicable), ISO material certifications, dimensional inspection reports, and surface treatment test data. All products are invoiced in AUD with Australian GST where applicable.<\/p>\n

Quick Selection Guide \u2014 PTO Shaft for Rotary Harrow \/ Power Harrow<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Selection Parameter<\/th>\nHow to Determine<\/th>\nGuidance<\/th>\n<\/tr>\n<\/thead>\n
Tractor engine HP<\/td>\nFrom spec sheet<\/td>\n1000 RPM PTO for tractors >80 HP typically<\/td>\n<\/tr>\n
Harrow working width<\/td>\n2.5\u20136.0 m mounted<\/td>\nWider harrow = more rotor columns = more torque<\/td>\n<\/tr>\n
Soil conditions<\/td>\nLight \/ Medium \/ Heavy<\/td>\nHeavy clay: Series 7 with high-slip friction clutch<\/td>\n<\/tr>\n
PTO speed<\/td>\n1000 RPM (confirm on gearbox plate)<\/td>\nDo not run 540 RPM shaft at 1000 RPM<\/td>\n<\/tr>\n
Required shaft length<\/td>\nMeasure at working position<\/td>\nNote: harrow often sits close \u2014 lengths tend to be shorter than rotary tillers<\/td>\n<\/tr>\n
Fold\/transport angle<\/td>\nCheck folding hitch angle<\/td>\nWide-angle CV needed if transport angle > 25\u00b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Step-by-Step Installation Guide \u2014 PTO Shaft for Rotary Harrow \/ Power Harrow<\/h2>\n
    \n
  1. [Safety]<\/strong> Engage tractor handbrake; PTO lever to off; engine off before installation.<\/li>\n
  2. [Set work height]<\/strong> Mount harrow on 3-point linkage; raise to mid-height (working position) before length measurement.<\/li>\n
  3. [Tractor yoke]<\/strong> Lubricate tractor PTO stub with light grease; slide tractor yoke on until click.<\/li>\n
  4. [Machine yoke]<\/strong> Attach machine yoke to harrow input stub; fasten retaining collar to 25 N\u00b7m.<\/li>\n
  5. [Travel check]<\/strong> Verify shaft slides freely through full 3PL travel range without bottoming out.<\/li>\n
  6. [Guard anchoring]<\/strong> Anchor guard hinge bracket to harrow frame; chain the tractor-end guard to PL bracket.<\/li>\n
  7. [First run]<\/strong> Engage PTO at 800 RPM; check no vibration; then ramp to full 1000 RPM.<\/li>\n
  8. [Service]<\/strong> Grease all 6 nipples after the first operating hour; check yoke collar torque.<\/li>\n<\/ol>\n

    \"PTO<\/p>\n

    \ufe0f PTO Shaft Troubleshooting \u2014 Common Issues & Solutions<\/h2>\n
    \n\u26a0\ufe0f High-frequency vibration increasing with speed<\/summary>\n
    \n

    Root Cause:<\/strong> Imbalanced shaft \u2014 possible bent tube or loose CV bearing<\/p>\n

    Fix:<\/strong> Return shaft for rebalancing; inspect CV bearing play<\/p>\n<\/div>\n<\/details>\n

    \n\u26a0\ufe0f Clutch slips continuously at normal load<\/summary>\n
    \n

    Root Cause:<\/strong> Friction discs worn or oil-contaminated<\/p>\n

    Fix:<\/strong> Disassemble clutch; replace disc pack; check for gearbox oil seepage<\/p>\n<\/div>\n<\/details>\n

    \n\u26a0\ufe0f Star profile seizing in wet clay<\/summary>\n
    \n

    Root Cause:<\/strong> Clay packing under guard into tube profile<\/p>\n

    Fix:<\/strong> Remove guard; clean profile; apply EP2 grease; add rubber wiper seal at tube entry<\/p>\n<\/div>\n<\/details>\n

    \n\u26a0\ufe0f Machine input shaft spinning freely (no drive)<\/summary>\n
    \n

    Root Cause:<\/strong> Yoke locking collar working loose; spline stripped<\/p>\n

    Fix:<\/strong> Tighten or replace collar; inspect splines<\/p>\n<\/div>\n<\/details>\n

    \n\u26a0\ufe0f Excessive heat at CV joint<\/summary>\n
    \n

    Root Cause:<\/strong> Grease purged \u2014 dry running condition<\/p>\n

    Fix:<\/strong> Stop immediately; repack CV joint with fresh grease before restarting<\/p>\n<\/div>\n<\/details>\n

    Engineer’s Field Notes \u2014 Australian Case Studies<\/h2>\n
    \n
    \n

    Horsham, VIC<\/p>\n

    Cropping farmer \u2014 4.0 m P\u00f6ttinger LION power harrow<\/p>\n

    “”The Series 7 CV shaft fitted first attempt on our 1000 RPM PTO. Zero vibration at 1000 RPM even on our heavy red clay paddocks. Exceptional quality.””<\/p>\n<\/div>\n

    \n

    Moree, NSW<\/p>\n

    Irrigated cotton\/winter cereal operation<\/p>\n

    “”We run three power harrows simultaneously in our seedbed programme. Ordered 3 shafts in one consignment \u2014 all identical, all fitted without adjustment.””<\/p>\n<\/div>\n

    \n

    Merredin, WA<\/p>\n

    Grains farm \u2014 Amazone KG 6001 harrow<\/p>\n

    “”OEM shaft cracked at the tube weld in year 2. Your replacement has thicker tube walls \u2014 running into its third season with no issues.””<\/p>\n<\/div>\n

    \n

    Goondiwindi, QLD<\/p>\n

    Mixed cropping \u2014 summer-winter rotation<\/p>\n

    “”Appreciated the friction clutch \u2014 our paddocks have limestone outcrops. The automatic re-engagement means we don’t stop every time a tine catches.””<\/p>\n<\/div>\n

    \n

    Murray Bridge, SA<\/p>\n

    Market garden \u2014 fine seedbed preparation<\/p>\n

    “”Needed a short compressed-length shaft for our compact tractor-harrow combination. Custom length arrived in 8 days. Perfect.””<\/p>\n<\/div>\n<\/div>\n

    \u2753 Frequently Asked Questions<\/h2>\n
    \nWhat is the difference between a power harrow and a rotary tiller PTO shaft?<\/summary>\n
    The main differences are PTO speed (power harrows typically run at 1000 RPM vs 540 RPM for most rotary tillers), torque profile (power harrows generate high sustained torque over a wide working width), and shaft tube profile (star or hexagonal profiles are more common on power harrows). Using a rotary tiller shaft on a power harrow can cause premature failure.<\/div>\n<\/details>\n
    \nDo I need a CV joint on my power harrow PTO shaft?<\/summary>\n
    Yes \u2014 power harrows attach with a compact hitch geometry that creates large angles when the 3-point linkage is raised for headland turns. Standard cross-joints experience severe binding above 20\u00b0 and fail rapidly. CV joints are essential on all mounted power harrow applications.<\/div>\n<\/details>\n
    \nHow do I adjust the friction clutch slip torque on a power harrow PTO shaft?<\/summary>\n
    Most clutches have an adjustment ring retained by a lock nut. Turning the ring clockwise increases spring clamping force and therefore slip torque. Always adjust in small increments (1\/8 turn) and re-test before increasing further. Never exceed the harrow manufacturer’s stated maximum input torque.<\/div>\n<\/details>\n
    \nCan a power harrow PTO shaft be used on a rotary tiller?<\/summary>\n
    Physically it may fit, but a power harrow shaft is rated for 1000 RPM operation. Running a 1000 RPM-rated shaft at 540 RPM is safe but inefficient. A 540 RPM-rated shaft running at 1000 RPM is dangerous \u2014 components are not balanced for the higher speed. Always match shaft to PTO speed specification.<\/div>\n<\/details>\n
    \nWhat is a star profile PTO shaft tube?<\/summary>\n
    A star (6-point) profile is a tube cross-section machined into a six-pointed star shape. The inner tube slides within the outer tube, and the star profile transmits torque via its six lobes while allowing axial sliding. The star profile has a higher torque-per-diameter ratio than triangular or lemon profiles, making it the preferred choice for high-torque, wide-working-width implements like power harrows.<\/div>\n<\/details>\n

    Related Products \u2014 Agricultural Gearboxes & PTO Accessories<\/h2>\n

    We manufacture the complete drivetrain ecosystem<\/strong> around PTO shafts. Our agricultural gearboxes<\/a> are engineered to pair perfectly with our PTO shafts for reduced system vibration and matched torque ratings.<\/p>\n

    \n
    \n\"Agricultural<\/p>\n

    Agricultural PTO Gearbox<\/p>\n

    Right-angle, inline, and multi-output gearboxes for all drive configurations.<\/p>\n

    View Gearboxes<\/a>\n<\/div>\n

    \n\"PTO<\/p>\n

    PTO Cross-Kit & Repair Sets<\/p>\n

    Full range of S3\u2013S8 cross-kits, bearing cups, and yoke repair components.<\/p>\n

    View Accessories<\/a>\n<\/div>\n

    \n\"PTO<\/p>\n

    PTO Safety Guards & Cones<\/p>\n

    Full-cone and half-cone PE guards, retaining chains, and strap kits.<\/p>\n

    View Guards<\/a>\n<\/div>\n<\/div>\n

    Partner with Us \u2014 OEM, Wholesale & Direct Supply<\/h2>\n
    \n

    Ready to Source a Reliable PTO Shaft for Rotary Harrow \/ Power Harrow?<\/h3>\n

    Whether you need a single replacement shaft or are sourcing for a dealer network or OEM production programme, our team is ready to help. We offer:<\/p>\n