{"id":838,"date":"2026-03-19T04:02:21","date_gmt":"2026-03-19T04:02:21","guid":{"rendered":"https:\/\/ptoparts.top\/product\/pto-drive-shaft-l-series-lemon-profile-agricultural-pto-shaft\/"},"modified":"2026-03-19T04:02:38","modified_gmt":"2026-03-19T04:02:38","slug":"pto-drive-shaft-l-series-lemon-profile-agricultural-pto-shaft","status":"publish","type":"product","link":"https:\/\/ptoparts.top\/pt\/product\/pto-drive-shaft-l-series-lemon-profile-agricultural-pto-shaft\/","title":{"rendered":"PTO Drive Shaft L Series \u2013 Lemon Profile Agricultural PTO Shaft"},"content":{"rendered":"

L Series PTO Drive Shaft \u2013 Lemon Profile Design for Smooth, Efficient Power Delivery<\/h2>\n

The L Series PTO drive shaft<\/strong> employs a lemon-shaped (elliptical) tube profile<\/em> that provides a larger contact surface between inner and outer tubes than conventional round profiles, resulting in lower surface pressure and extended tube life. Spanning models L1 to L6 and L32, this series covers torque demands from 320 Nm to 1,200 Nm and is optimized for light-to-medium-duty farm implements driven by compact and utility tractors.<\/p>\n

Industry applications:<\/strong> Arable farming, grassland management, orchard maintenance, horticultural operations, and municipal landscaping.<\/p>\n

Why choose the L Series?<\/strong> Lemon tube geometry reduces rotational mass \u00b7 Quieter operation at higher RPMs \u00b7 Lower friction during telescopic extension \u00b7 Full compatibility with standard 6-spline and 21-spline PTO outputs.<\/p>\n

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L Series Technical Data Sheet<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nCross Size (mm)<\/th>\n540 RPM \u2013 Kw<\/th>\n540 RPM \u2013 Pk<\/th>\n540 RPM \u2013 Nm<\/th>\n1000 RPM \u2013 Kw<\/th>\n1000 RPM \u2013 Pk<\/th>\n1000 RPM \u2013 Nm<\/th>\nMP (NM)<\/th>\n<\/tr>\n<\/thead>\n
L1<\/td>\n22\u00d754<\/td>\n12<\/td>\n16<\/td>\n210<\/td>\n18<\/td>\n25<\/td>\n172<\/td>\n320<\/td>\n<\/tr>\n
L2<\/td>\n23.8\u00d761.3<\/td>\n15<\/td>\n21<\/td>\n270<\/td>\n23<\/td>\n31<\/td>\n220<\/td>\n450<\/td>\n<\/tr>\n
L3<\/td>\n27\u00d770<\/td>\n22<\/td>\n30<\/td>\n390<\/td>\n35<\/td>\n47<\/td>\n330<\/td>\n640<\/td>\n<\/tr>\n
L4<\/td>\n27\u00d774.6<\/td>\n26<\/td>\n35<\/td>\n460<\/td>\n40<\/td>\n55<\/td>\n380<\/td>\n780<\/td>\n<\/tr>\n
L5<\/td>\n30.2\u00d780<\/td>\n35<\/td>\n47<\/td>\n970<\/td>\n54<\/td>\n74<\/td>\n520<\/td>\n1050<\/td>\n<\/tr>\n
L6<\/td>\n30.2\u00d792<\/td>\n47<\/td>\n64<\/td>\n830<\/td>\n74<\/td>\n100<\/td>\n710<\/td>\n1450<\/td>\n<\/tr>\n
L32<\/td>\n32\u00d776<\/td>\n39<\/td>\n53<\/td>\n695<\/td>\n61<\/td>\n83<\/td>\n580<\/td>\n1200<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Operating Principle of the Lemon-Profile PTO Shaft<\/h2>\n

The L Series operates on the same cardan joint principle as all agricultural PTO shafts, but its defining characteristic is the lemon-shaped cross-section<\/strong> of the telescopic tubes. Unlike triangular or star profiles, the lemon shape distributes torque loads across two broad, opposing contact arcs. This geometry produces lower peak contact stress, which translates into reduced wear, less heat generation during telescoping, and noticeably quieter operation \u2014 a meaningful benefit when running implements for extended periods in grassland or orchard settings.<\/p>\n

Assembly breakdown:<\/strong> Tractor-end forged yoke \u00b7 Lemon-profile outer tube with welded yoke \u00b7 Lemon-profile inner tube with welded yoke \u00b7 Implement-end yoke \u00b7 Two cross kits with sealed needle bearings \u00b7 Full-length polypropylene safety shield set \u00b7 Retaining chains and spring pins.<\/p>\n

Why the L Series Stands Out \u2013 Key Benefits<\/h2>\n
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Lower Rotational Inertia<\/h3>\n

The lemon profile carries less material per unit length than triangular tubes, reducing parasitic power loss \u2014 especially valuable on sub-60 HP tractors.<\/p>\n<\/div>\n

\n🔈<\/span><\/p>\n

Quieter Running<\/h3>\n

Broad elliptical contact patches dampen vibration harmonics, producing noticeably less noise than angular tube profiles at 1,000 RPM.<\/p>\n<\/div>\n

\n🛠<\/span><\/p>\n

Extended Tube Life<\/h3>\n

Distributed surface pressure across the lemon profile reduces localized wear, extending replacement intervals by up to 30% versus triangular tubes of equivalent size.<\/p>\n<\/div>\n

\n🌱<\/span><\/p>\n

Compact & Lightweight<\/h3>\n

Ideal for orchard and vineyard tractors where clearance is limited and every kilogram of rotating mass counts.<\/p>\n<\/div>\n

\n🔒<\/span><\/p>\n

Sealed Bearings<\/h3>\n

Cross kit bearing cups are factory-sealed and pre-packed with high-temperature grease, resisting dust and moisture ingress in the field.<\/p>\n<\/div>\n<\/div>\n

Materials & Manufacturing Process<\/h2>\n

L Series tubes are precision-drawn from AISI 1045 medium-carbon steel through custom lemon-profile dies, maintaining wall-thickness tolerances within \u00b10.15 mm. Outer and inner tubes are matched in sets and individually numbered to ensure consistent sliding fit. Yokes are closed-die forged from 42CrMo4 chromium-molybdenum steel, machined on CNC lathes, and induction-hardened at spline and bearing bore surfaces to HRC 56\u201360. All exposed steel surfaces receive a trivalent chromium passivation finish (RoHS-compliant) for corrosion resistance without hexavalent chromium. Safety shields are molded from UV-stabilized polypropylene to maintain integrity under prolonged sun exposure.<\/p>\n

Where the L Series Excels \u2013 Application Scenarios<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Scenario<\/th>\nSuggested Model<\/th>\nOperating Notes<\/th>\n<\/tr>\n<\/thead>\n
Finishing Mower (Parkland)<\/td>\nL1 \u2013 L2<\/td>\nLow-torque, high-RPM application; lemon profile minimizes vibration on manicured turf.<\/td>\n<\/tr>\n
Hay Tedder \/ Rake<\/td>\nL2 \u2013 L4<\/td>\nFrequent extension\/retraction during turning; smooth lemon telescoping reduces judder.<\/td>\n<\/tr>\n
Seed Drill<\/td>\nL3 \u2013 L5<\/td>\nSteady moderate torque drives metering mechanisms; compact profile clears drill frame.<\/td>\n<\/tr>\n
Orchard Sprayer<\/td>\nL2 \u2013 L3<\/td>\nNarrow row spacing demands a slim PTO shaft; L Series fits within tight canopy gaps.<\/td>\n<\/tr>\n
Small Grain Auger<\/td>\nL4 \u2013 L6<\/td>\nIncline angle varies; two cardan joints absorb misalignment while lemon tubes slide freely.<\/td>\n<\/tr>\n
Vineyard Inter-Row Cultivator<\/td>\nL1 \u2013 L3<\/td>\nCompact tractor <50 HP; lightweight L Series avoids overloading PTO output bearing.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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How to Select the Correct L Series PTO Shaft<\/h2>\n

Follow these six steps to match the L Series shaft to your tractor-implement combination:<\/p>\n

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  1. Determine implement power requirement (kW or HP):<\/strong> Find this on the implement nameplate or operator manual. Convert HP to kW (1 HP \u2248 0.746 kW) if needed.<\/li>\n
  2. Identify PTO speed:<\/strong> Most implements specify 540 or 1,000 RPM. Cross-reference with the L Series torque table above.<\/li>\n
  3. Measure installation distance:<\/strong> Record the minimum (closed) and maximum (open) distances between PTO stub and implement input shaft. Ensure the shaft’s stroke covers this range with at least one-third tube overlap.<\/li>\n
  4. Verify spline specification:<\/strong> Common standards include 1-3\/8" 6-spline (540 RPM) and 1-3\/8" 21-spline (1,000 RPM). The implement side may use a different profile \u2014 specify both ends when ordering.<\/li>\n
  5. Assess operating environment:<\/strong> For dusty or wet conditions, consider ordering shafts with additional sealing on the spline connection.<\/li>\n
  6. Safety compliance:<\/strong> Confirm your region’s requirements. CE shields are standard; additional guarding may be needed for certain applications.<\/li>\n<\/ol>\n

    For complex configurations, our application engineers can prepare a detailed sizing report. Get in touch here<\/a>.<\/p>\n

    Cross-Brand Replacement Compatibility<\/h2>\n

    The L Series is designed as a drop-in aftermarket replacement<\/strong> for lemon-profile PTO shafts produced by established European driveline manufacturers, including:<\/p>\n