landbouw-PTO-as<\/strong><\/a> uses a pair of universal (U-joints) at each end to accommodate working angles. However, a single U-joint operating at an angle does not transmit torque at constant velocity – it introduces a twice-per-revolution speed fluctuation that creates pulsing vibration. This vibration is amplified by the high rotational speed and the inertial mass of the disc mower’s cutterbar. With an 80-degree capability on the tractor side and 50 degrees on the implement side, this PTO drive shaft for discbine can accommodate the steep offset angles required when the DC132 operates in drawbar or 3-point hitch configurations with significant lateral displacement or ground following movement.<\/p>\n3. Slip Clutch Protection Mechanism
\nThe slip clutch PTO shaft mechanism is positioned at the implement end of the driveline shaft assembly, immediately behind the implement-side CV joint. It consists of a series of friction discs clamped between pressure plates under spring load. Under normal operating conditions, the friction force between the plates is sufficient to transmit the full torque required to drive the disc mower’s cutterbar gearboxes and conditioning rolls. When a sudden torque spike occurs – for example, when a cutting disc strikes a buried rock or the cutterbar ingests a heavy slug of wet crop – the instantaneous torque demand exceeds the slip clutch’s preset torque limit. The friction discs slip against each other, absorbing the shock energy as heat rather than transmitting it as destructive force through the PTO shaft u joint assemblies and into the tractor’s gearbox. After the obstruction clears, the clutch automatically re-engages without operator intervention. The slip torque can be adjusted by modifying spring preload to match the specific crop conditions and ground hazard levels of the farm.<\/p>\n
4. Overrunning Clutch Function
\nThe overrunning clutch (also known as a freewheel) works in the opposite direction to the slip clutch. When the tractor’s engine slows down rapidly – during a headland stop, for example – the DC132’s 10 cutting discs and conditioning rolls have significant rotational inertia and continue spinning. Without a freewheel, this inertia would be braked through the PTO driveline shaft and tractor gearbox, causing extreme reverse-direction shock loads that can crack PTO shaft yoke welds and fracture tractor PTO output shafts. The overrunning clutch contains a ratchet or roller-type mechanism that allows the implement to coast freely past the tractor’s deceleration speed, decoupling the discbine’s inertia from the tractor drivetrain until both components reach the same speed.<\/p>\n
5. Power Delivery to the Cutterbar
\nAt the implement end, the PTO shaft connects to the DC132’s main input gearbox via the 1.50-inch x 23-spline female yoke. The main gearbox multiplies the 1,000 RPM input shaft speed to 3,000 RPM disc speed, distributing torque via bevel gears and a series of individual disc drive gearboxes along the 13-foot cutterbar. Simultaneously, a belt and gear drive from the main gearbox runs the conditioning rolls at 740 RPM. The precision of the PTO shaft dimensions – both the spline engagement depth and the joint angle geometry – directly affects the thermal and mechanical loading of all downstream components. A correctly specified and maintained 1000 rpm PTO shaft is therefore the foundation of reliable, high-output disc mower performance every season.<\/p>\n
![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/PTO-Shaft-for-Case-IH-Disc-Mower-2.webp\")
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Application Areas<\/h2>\n
1. Hooioogst<\/strong>
\nThe primary use case for this disc mower PTO shaft. The DC132 cuts grasses and legumes into windrows while integrated conditioning rolls crimp and crack the stems to accelerate field drying before baling. At 1,000 RPM input, the Double CV shaft delivers smooth, consistent torque that maintains the 3,000 RPM disc speed needed for a clean, vertical cut that minimizes soil contamination and preserves forage quality. For operations cutting 200+ acres per season, a reliable agricultural PTO shaft is as critical to profitability as the discbine itself.<\/p>\n2. Silage Production<\/strong>
\nCutting crops at higher moisture levels for fermented silage storage in bunkers, pits, or wrapped bales demands fast, even cutting to ensure uniform fermentation. The 1000 rpm PTO shaft configuration of the DC132 supports the high disc speeds needed to cut wet, heavy crops without tearing or bruising the stems excessively. A reliable PTO driveline shaft is essential here because silage harvesting windows are narrow and any unplanned downtime caused by a failed PTO shaft u joint or slip clutch can result in crop losses across an entire field before conditions change.<\/p>\n3. Forage Harvesting<\/strong>
\nMowing high-value crops such as alfalfa, clover, and ryegrass at the optimum stage of maturity requires precise cutting height control and zero crop contamination. The DC132 with a correctly functioning PTO shaft for discbine operations maintains consistent disc speed across all crop densities, ensuring a level, clean cut that maximizes nutritional content for livestock feed whether stored as dry hay or green chop. The slip clutch PTO shaft mechanism prevents costly gearbox damage when harvesting mature, dense alfalfa stands where sudden crop slugs are common.<\/p>\n4. Cover Crop Termination<\/strong>
\nCutting down winter cover crops such as cereal rye or hairy vetch ahead of planting season leaves the biomass as a protective mulch layer that suppresses weeds and protects soil structure. The DC132’s high cutting speed driven by a correctly functioning 540 PTO shaft or 1,000 RPM shaft ensures the tough, fibrous stems of cereal cover crops are cut cleanly rather than torn, producing an even mulch layer that breaks down uniformly. The slip clutch PTO shaft protects against the large stones and soil compaction features common in fields that have been cover-cropped over winter without tillage.<\/p>\n5. Pasture Management<\/strong>
\nTopping and trimming pastures to control rank, stemmy growth, remove seed-head weeds, and encourage fresh, palatable re-growth for grazing animals is a key secondary application for the DC132. In this context, the PTO drive shaft for discbine must handle highly variable crop densities and frequent directional changes. The Double CV design’s ability to accommodate wide angles without vibration is particularly valuable in smaller, irregular paddocks where the hitch angle changes frequently. The shear bolt PTO shaft or slip clutch function protects against the frequent stone strikes typical in grazed pasture environments.<\/p>\n6. Maaien langs de weg en gespecialiseerd maaien<\/strong>
\nMaintaining roadsides, drainage ditches, airport buffer strips, and conservation headlands where a clean, controlled cut is needed in irregular or sensitive areas demands a heavy duty PTO shaft with excellent angle tolerance. In roadside applications, the DC132 must operate at steep lateral offsets with the tractor traveling on a crowned road surface and the cutterbar working down the verge. The 80-degree tractor-side CV joint angle rating of this discbine PTO shaft provides the angular capacity needed for these demanding geometries while maintaining smooth, constant-velocity torque transmission.<\/p>\n![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/PTO-Shaft-for-Case-IH-Disc-Mower-3.webp\")
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How to Install PTO Shaft on Case IH Discbine<\/h2>\n
Step 1: Safety Preparation and Pre-Installation Checks
\nBefore beginning any work on the PTO driveline shaft, park the tractor on a flat, level surface with the engine fully stopped and the parking brake applied. Disengage the tractor PTO control and remove the ignition key. Allow all rotating components of the DC132 to come to a complete stop. Inspect the tractor PTO stub for wear, corrosion, or spline damage. Measure the stub diameter and count the splines to confirm compatibility with your chosen PTO shaft configuration – 21-spline for standard 1.375-inch stubs or 20-spline for 1.750-inch large-bore stubs. Also inspect the implement’s 1.50-inch x 23-spline input shaft for any damage that could prevent correct yoke engagement.<\/p>\n
Step 2: Measure Required PTO Shaft Length and Dimensions
\nWith the DC132 hitched to the tractor in its normal working position, measure the distance between the face of the tractor PTO stub and the face of the implement input shaft stub. Ensure the telescoping PTO shaft tube has sufficient overlap – typically at least one-third of the inner tube length should remain inside the outer tube at maximum extension to maintain safe torque capacity. Also check that at maximum compression (during headland turns when the tractor and implement are closest) the inner tube does not bottom out. Confirming these PTO shaft dimensions before ordering a custom PTO shaft from CMN Transmission eliminates fitment errors.<\/p>\n
Step 3: Install the Tractor-Side CV Yoke
\nApply a light film of grease to the tractor PTO stub splines. Slide the tractor-side yoke of the PTO shaft (80-degree CV half, 1.375-21 or 1.750-20 spline as applicable) onto the tractor stub, pushing firmly until the spring-loaded locking pin clicks into the groove on the stub shaft. Verify full engagement by pulling back on the shaft to confirm the locking pin is seated and the yoke cannot be removed without depressing the release collar. Improper engagement is a leading cause of PTO shaft yoke separation under load, which can cause severe equipment damage and operator injury. Never operate the tractor PTO shaft without confirming both end connections are fully locked.<\/p>\n
Step 4: Connect the Implement-Side CV Yoke
\nWith the PTO shaft hanging freely from the tractor connection, align the implement-side yoke (50-degree CV half, 1.50-inch x 23 spline) with the DC132 input stub. Push firmly to engage the splines fully, then lock the yoke using the retaining pin or spring collar as designed. Ensure the slip clutch assembly is positioned correctly – it should sit at the implement end of the shaft as per OEM specification. After connecting both ends, check that the telescoping PTO shaft tube sections have adequate overlap for both extended (field working) and compressed (transport or headland turn) positions before commencing any PTO operation.<\/p>\n
Step 5: Attach the PTO Shaft Guard
\nFit the PTO shaft guard over the complete shaft assembly. The guard tubes on each half should overlap each other in the center, and the bearing cones at each end should be secured to the tractor gearbox housing and the implement input housing using the supplied safety chains. The chains prevent the guard from rotating with the shaft while allowing the shaft itself to turn freely inside. Never operate any agricultural PTO shaft without the PTO shaft cover and guard properly installed – rotating PTO components are a major cause of severe and fatal farm injuries. Replace the guard immediately if it is cracked, broken, or missing.<\/p>\n
Step 6: Grease, Test, and Break-In
\nBefore first operation, apply multi-purpose grease to all grease nipples on the CV joints and telescoping shaft profile. CMN Transmission recommends greasing every 8 hours of operation during the first break-in period, then following the regular maintenance schedule. Engage the PTO at low RPM first and observe for any unusual vibration or noise that could indicate incorrect spline engagement or joint alignment. Gradually increase to full 1,000 RPM operating speed and check again. After the first hour of operation, re-check both end yoke connections to confirm they remain fully locked before continuing hay or forage harvesting operations.<\/p>\n
![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/PTO-Shaft-for-Case-IH-Disc-Mower-9.webp\")
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How to Choose the Right PTO Shaft for Disc Mower<\/h2>\n
1. Confirm Your Tractor PTO Spline Size and Speed<\/strong>
\nThe DC132 requires a 1,000 RPM PTO input. Verify your tractor has a 1000 PTO shaft output (not 540 PTO shaft). Check the tractor’s operator manual or measure the PTO stub: 1.375 inches (34.9 mm) diameter with 21 splines is standard for 90+ hp tractors. Larger tractors may have a 1.750-inch x 20-spline large-bore PTO output. Using a shaft with the wrong PTO shaft sizes will cause immediate spline damage or complete disengagement under load, so confirming this measurement before ordering is non-negotiable.<\/p>\n2. Decide Between a Complete Assembly or Half Shaft<\/strong>
\nIf both CV joint halves are worn or if the telescoping tube is damaged, a complete double-CV assembly is the most cost-effective solution. However, if only one CV joint has failed (a common scenario where the implement-side CV wears first due to higher operating angle), ordering only the 50-degree implement-side CV half significantly reduces parts cost. Inspect both halves before ordering: check PTO shaft u joint play by grasping each CV housing and feeling for radial looseness, and inspect the PTO shaft tubing for bending, corrosion, or profile wear in the telescoping section.<\/p>\n3. Measure Shaft Length for Custom Applications<\/strong>
\nStandard PTO shaft length for the DC132 drawbar configuration is defined by Case IH factory specifications. However, if you are using a non-standard hitch extension, a drawbar swivel hitch, or a 2-point hitch adapter, the required PTO shaft length and dimensions may differ. CMN Transmission’s technical team can engineer a custom PTO shaft to your specified extended and compressed lengths. Provide your minimum compressed length, maximum extended working length, and hitch configuration details to receive a dimensional drawing and quotation before ordering a non-standard shaft.<\/p>\n4. Verify Slip Clutch Torque Setting for Your Crop Conditions<\/strong>
\nThe factory slip clutch setting on the DC132’s PTO drive shaft is calibrated for typical mixed crop conditions. In particularly rocky ground or when cutting exceptionally dense, mature crops, a higher slip torque setting may be desirable to prevent nuisance slipping that causes disc speed fluctuation. In very clean, light-crop conditions, a lower setting provides more sensitive protection for the cutterbar gearboxes. CMN Transmission’s PTO shaft with slip clutch assemblies are adjustable, and our technical team can advise on the correct spring preload for your specific operational environment.<\/p>\n5. Consider OEM vs. Aftermarket Quality Standards<\/strong>
\nMany low-cost aftermarket tractor PTO shafts use inferior CV joint ball materials, undersized yoke forgings, and thin PTO shaft guard tube walls that fail prematurely under commercial hay production loads. CMN Transmission’s shafts are manufactured with the same alloy specifications and machining tolerances as OEM components, backed by ISO9001 quality certification. When comparing PTO shaft prices, factor in the true cost of downtime, replacement labor, and potential secondary damage to the discbine gearboxes caused by a failed low-quality shaft during a critical cutting window.<\/p>\n![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/PTO-Shaft-for-Case-IH-Disc-Mower-4.webp\")
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Troubleshooting Common PTO Drive Shaft Issues<\/h2>\n
1. Probleem: Overmatige trillingen tijdens gebruik
\nCause: The most common cause of vibration in an agricultural PTO shaft is worn or dry CV joint bearings. Also check for bent PTO shaft tubing caused by an impact, or misalignment from incorrect hitch height that places the shaft outside its designed operating angle range. Solution: Grease all CV joint nipples immediately. If vibration persists, disassemble the CV joint housing and inspect the ball tracks for pitting or flaking. Replace the affected CV half assembly. Confirm the tractor drawbar height is within Case IH specifications for the DC132 to ensure the shaft operates within its 80\/50-degree angle rating.<\/p>\n
2. Problem: Slip Clutch Slipping Continuously
\nCause: Nuisance slipping in a slip clutch PTO shaft typically indicates worn friction discs or incorrect spring preload. Over time, the friction material on the clutch discs wears thin, reducing the slip torque to below the normal operating torque requirement. Contamination of the friction surfaces with grease or oil also dramatically reduces slip torque. Solution: Disassemble the slip clutch assembly and inspect the friction discs for wear. Replace discs as a set if total thickness is below specification. Clean all friction surfaces with solvent. Adjust spring preload to the correct torque setting per the CMN Transmission assembly documentation. Never grease the friction faces of the clutch discs.<\/p>\n
3. Problem: PTO Shaft Yoke Disconnects Under Load
\nCause: This is a serious safety hazard caused by a worn or damaged retaining pin on the PTO shaft yoke, or a worn groove on the tractor PTO stub that no longer provides adequate retention depth. It can also occur if the shaft is incorrectly connected with the locking pin not fully seated. Solution: Immediately stop operation and inspect both the yoke locking pin mechanism and the tractor PTO stub groove. Replace the yoke assembly if the locking pin spring is weak, the pin is worn, or the groove on the stub is damaged. Never operate a tractor PTO shaft that cannot be confirmed as fully locked at both ends. Contact CMN Transmission for PTO shaft adapter or yoke replacement parts.<\/p>\n
4. Problem: Telescoping Shaft Sections Seizing or Difficult to Extend
\nCause: PTO shaft tubing corrosion and galling of the profile cross-section is the most common cause of telescoping seizure. This typically occurs when the shaft has been stored outdoors without protection or when grease nipples on the tube section have been neglected. In severe cases, the inner tube can weld itself to the outer under extreme loads. Solution: Disassemble the telescoping section, clean both inner and outer PTO shaft tube profiles thoroughly with a wire brush, and apply fresh grease to the full length of the inner tube. Install dust seals at each end of the outer tube if they are missing. Prevent recurrence by greasing the tube profile every 8 operating hours and applying corrosion protection spray before off-season storage.<\/p>\n
5. Problem: Overheating at CV Joint Housing
\nCause: Overheating indicates that the CV joint is operating with insufficient lubrication or is being run at angles beyond its rated capacity. The DC132’s tractor-side CV is rated to 80 degrees, but sustained operation near this limit in high-load conditions increases heat generation significantly. Grease that has dried out, been contaminated, or been displaced by a damaged seal will cause rapid ball track wear accompanied by heat. Solution: Grease the CV joint immediately. Inspect the CV housing seal for cuts or displacement and replace if damaged. Verify the tractor drawbar height is set correctly. If the joint is overheating despite adequate lubrication, the ball tracks may be worn beyond recovery – replace the affected PTO shaft half to prevent catastrophic failure.<\/p>\n
![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/PTO-Shaft-for-Case-IH-Disc-Mower-7.webp\")
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Aftakas en versnellingsbak van de schijvenmaaier<\/h2>\n
In a rotary disc mower-conditioner system like the Case IH DC132, two groups of mechanical components share responsibility for converting tractor engine power into disc cutting speed: the disc mower PTO shaft and the disc mower gearbox system. These two components are engineered as a matched system, and a failure in either one directly impacts the performance and safety of the other.<\/p>\n
The agricultural PTO shaft is the external, flexible driveline that runs from the tractor’s PTO output stub to the implement’s main input gearbox. It must accommodate the constant changes in angle, length, and alignment that occur as the tractor and discbine move relative to each other over uneven ground, through headland turns, and during transport. The CAT 6 Double CV design on this DC132 tractor PTO shaft handles angular velocity changes with a Double Constant Velocity joint system rated to 80 degrees on the tractor side and 50 degrees on the implement side. The telescoping PTO shaft tube absorbs length changes. The slip clutch PTO shaft and overrunning clutch protect the entire drivetrain from torque spikes and inertial backlash. Without a correctly functioning PTO drive shaft, no torque reaches the disc mower’s internal driveline at all, making it the critical first link in the entire power chain.<\/p>\n
Once torque enters the DC132 through the implement input shaft, it is received by the main input gearbox, a bevel-gear-and-shaft assembly that takes the 1,000 RPM PTO input and simultaneously distributes power to the cutterbar drive train and the conditioning roll drive. Along the 13-foot cutterbar, a series of individual disc mower gearboxes (also called cutterbar module gearboxes) are mounted in each individually sealed disc module. These step up the shaft speed to 3,000 RPM at the disc hub through precision-cut bevel gears running in sealed oil baths. The DC132 uses 10 cutting discs, meaning 10 individual disc-drive gearboxes plus the main input gearbox and the conditioning roll drive gearbox, approximately 12 or more gear sets in total. Each one is a precision component that depends on the correct input torque and speed delivered by the PTO driveline shaft upstream.<\/p>\n
A worn or damaged disc mower PTO shaft creates vibration, speed fluctuations, and uncontrolled torque spikes that accelerate wear in every downstream gearbox. A loose PTO shaft u joint creates torsional vibration at twice-per-revolution frequency that fatigues gear tooth roots in the main input gearbox. An improperly set slip clutch allows excessive shock torque to reach the individual disc module gearboxes during crop slug events, fracturing bevel gear teeth or scoring the disc hub splines. Conversely, a correctly maintained PTO shaft for disc mower applications delivers smooth, consistent 1,000 RPM input that allows each gearbox in the system to operate within its design load envelope – maximizing service life across the entire machine.<\/p>\n
CMN Transmission supplies both PTO shaft parts for the DC132 and a comprehensive range of disc mower gearboxes, including individual cutterbar module gearboxes, main input gearboxes, and conditioning roll drive assemblies. When a disc module gearbox fails on your DC132, always inspect the PTO shaft assembly simultaneously – a failed gearbox is often a symptom of upstream driveline problems that will destroy the replacement gearbox if not addressed. Our technical team can advise on the correct gearbox model and PTO shaft configuration to restore your DC132 to full factory specification, with factory-direct pricing and global shipping to over 53 countries.<\/p>\n
![\"Versnellingsbak](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/0_Disc-Mower-Gearbox-1.webp\")
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Why Choose CMN Transmission’s Agricultural PTO Shafts?<\/h2>\n
CMN Transmission (Korea) stands as one of the world’s leading suppliers of industrial power transmission solutions. Headquartered in Ansan-si, Gyeonggi-do, Korea, with a production base and over 10 shareholding cooperative factories, we maintain an inventory of more than 150,000 standard stock products and serve customers in over 53 countries. Whether you need a single replacement disc mower PTO shaft or a bulk wholesale supply of tractor PTO drive shafts for your dealership, CMN Transmission has the capability, the inventory, and the technical expertise to deliver.<\/p>\n
Onze voordelen:<\/h3>\n\n- Global Reach, Local Knowledge:<\/strong> Serving customers in over 53 countries across North America, Europe, South America, the Middle East, Africa, Southeast Asia, and Oceania from our headquarters in Ansan-si, Gyeonggi-do, Korea. With more than 150,000 standard stock products and over 10 cooperative production facilities, CMN Transmission delivers the inventory depth of a global supplier with the responsiveness of a specialist partner.<\/li>\n
- Factory-Direct Pricing:<\/strong> As an integrated manufacturing and trading company, CMN Transmission eliminates the multiple dealer markups that inflate the cost of OEM replacement PTO shaft parts. Our tractor PTO shafts are priced at factory-direct rates without sacrificing the material quality, dimensional precision, or certification standards that define a reliable agricultural PTO shaft. The savings are typically 30-50% compared to OEM dealer supply channels, with equivalent or superior technical performance.<\/li>\n
- Technical Expertise and Pre-Sale Support:<\/strong> Our technical team provides pre-sale consultation to confirm spline configurations, PTO shaft length and dimensions, and clutch specifications for your exact tractor and implement combination. Dimensional drawings are available on request for all standard and custom PTO shaft products. We offer customized PTO shaft parts for non-standard applications, ensuring you get the correct part the first time rather than discovering a mismatch after shipment has arrived.<\/li>\n
- Certified Quality Manufacturing:<\/strong> Every tractor PTO drive shaft CMN Transmission produces is manufactured using advanced CAD design, precision CNC machining, modern heat treatment processes, and rigorous quality testing. Products carry both ISO9001 and CE certifications. Our TS16949-aligned quality management procedures ensure that every PTO driveline shaft meets consistent dimensional and performance standards across production batches – important for dealers and distributors who need reliable quality consistency across multiple orders.<\/li>\n
- Complete Product Range:<\/strong> Beyond disc mower PTO shafts, CMN Transmission’s product range spans agricultural gearboxes, hydraulic cylinders, planetary gearboxes, worm gearboxes, bevel gears, chain sprockets, chains, gear racks, pulleys, taper bushes, couplings, and more. This one-stop supply capability means agricultural machinery dealers and end-users can source complete drivetrain replacement components from a single trusted supplier, reducing procurement complexity and logistics costs.<\/li>\n
- After-Sales Service and Support:<\/strong> CMN Transmission’s one-stop after-sales service model ensures that replacement components, technical guidance, and warranty support remain accessible throughout the product lifecycle. When you choose CMN Transmission, you are choosing a partner committed to keeping your equipment running efficiently, reliably, and safely – season after season. Our response time for technical support inquiries is typically within one business day, ensuring minimal disruption to your hay harvesting schedule when urgent parts or advice are needed.<\/li>\n<\/ul>\n
![\"Fabrieksuitrusting\"](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/Factory-Equipment-3.webp\")
![\"Fabrieksuitrusting\"](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/Factory-Equipment-1.webp\")
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Veelgestelde vragen<\/h2>\n
Q: What is the correct PTO shaft for the Case IH DC132 Disc Mower?<\/strong>
\nA: The DC132 uses a CAT 6 Double Constant Velocity PTO shaft based on the 55N Weasler Series, with an 80-degree CV joint on the tractor side and a 50-degree CV joint on the implement side. The tractor-side spline is 1.375-inch (34.9 mm) x 21 splines (or optionally 1.750-inch x 20-spline for large-bore tractors), and the implement-side input is 1.50-inch x 23 splines. The DC132 operates at 1,000 RPM input speed and requires a minimum 90 hp tractor. Confirm both your tractor stub spline specification and whether you need a complete double-CV assembly or only a tractor-half or implement-half replacement before ordering.<\/p>\nQ: Is this PTO shaft a replacement of Weasler PTO shaft components?<\/strong>
\nA: Yes. CMN Transmission’s disc mower PTO shaft for the DC132 is engineered as a direct replacement of Weasler PTO shaft 55N series components. The dimensional specifications – CV joint operating angles, spline profiles, yoke bore diameters, and telescoping tube cross-section profiles – are matched to the original Weasler design. This means no adapters or custom machining are required for installation. CMN Transmission is not affiliated with Weasler or its parent company; this is an independently engineered, ISO9001-certified aftermarket replacement of equivalent quality and specification.<\/p>\nQ: What is the difference between a 540 PTO shaft and a 1000 PTO shaft for disc mowers?<\/strong>
\nA: The 540 PTO shaft speed (6 splines, typically on tractors up to 80 hp) and the 1000 RPM PTO shaft speed (21 splines, on tractors 90+ hp) refer to the rotational speed at which the tractor’s PTO stub turns. The Case IH DC132 is designed exclusively for 1,000 RPM PTO input – it requires the higher-speed 1,000 rpm PTO shaft connection. Using a 540 PTO shaft connection would deliver only 54% of the required input speed, resulting in dangerously low disc cutting speed, poor crop quality, and potential gearbox overloading. Always confirm your tractor’s PTO speed setting matches the 1000 RPM requirement of the DC132 before engagement.<\/p>\nQ: Can I order a custom PTO shaft length for a non-standard DC132 hitch configuration?<\/strong>
\nA: Yes. CMN Transmission offers custom PTO shaft manufacturing for non-standard applications. If your DC132 is mounted on an extended drawbar hitch, a 2-point swivel hitch, or any configuration that places the tractor PTO stub at a different distance from the implement input than the factory specification, provide CMN’s technical team with your minimum compressed length, maximum working extension length, and hitch geometry details. A dimensional drawing will be provided before production begins. Custom PTO shaft orders typically require slightly longer lead times than stock items but can be shipped globally on completion.<\/p>\nQ: How often should the DC132 discbine PTO shaft be greased?<\/strong>
\nA: CMN Transmission recommends greasing the CV joint housings and the telescoping PTO shaft tube profile every 8 hours of operation during the initial break-in period (first 50 hours), and every 15 to 20 hours thereafter during normal seasonal use. In extremely dusty or wet conditions, or when cutting abrasive crops like cereal rye, reduce the interval to every 8 hours throughout the season. Use a high-quality, high-temperature lithium-complex grease. Never over-grease to the point where the CV joint housing seals are pushed out – apply grease until fresh grease just appears at the seal lip, then stop.<\/p>\nQ: How does the PTO shaft with slip clutch protect the DC132 gearboxes?<\/strong>
\nA: The PTO shaft with slip clutch on the DC132 is set to transmit a maximum torque that is safely above the normal cutting torque demand but below the torque required to fracture gear teeth in the disc module gearboxes. When an obstruction is struck – a rock, a buried log, or a soil mound – the instantaneous torque demand spikes well above the cutting load. The slip clutch discs slip against each other, absorbing the spike as heat rather than transmitting it to the downstream gearboxes. Without this slip clutch PTO shaft mechanism, a single rock strike at 1,000 RPM could fracture one or more disc module gearbox housings, costing far more than the PTO shaft itself to repair.<\/p>\nQ: What PTO shaft guard and cover requirements apply to this shaft in European markets?<\/strong>
\nA: In European Union markets, all agricultural PTO shafts must carry CE marking and include a complete, non-rotating PTO shaft guard secured by safety chains to both the tractor and implement. The guard must cover the full rotating length of the shaft and both CV joint housings. CMN Transmission’s disc mower PTO shaft meets these requirements: it is CE certified and ships with a full PTO shaft cover and guard system including safety chains. Farm operators in Germany, France, the Netherlands, and other EU countries can use this shaft with confidence that it meets the applicable Machinery Directive requirements for rotating agricultural equipment.<\/p>\nQ: What PTO shaft dimensions and spline sizes should I verify before ordering?<\/strong>
\nA: Before ordering, verify and record the following: (1) Tractor PTO stub diameter and spline count – 1.375 inch \/ 21-spline is standard, but measure to confirm; (2) Implement input stub diameter and spline count – DC132 standard is 1.50 inch \/ 23-spline; (3) Compressed shaft length with tractor and discbine in their transport position; (4) Extended shaft length with discbine at full working depth on level ground; (5) Hitch type – standard drawbar, 2-point, or drawbar swivel – as this affects the operating angle. CMN Transmission’s technical team will verify your measurements against the correct part specification before confirming your order.<\/p>\nQ: How long does the CMN Transmission DC132 discbine PTO shaft typically last?<\/strong>
\nA: Under normal commercial hay production conditions with regular greasing (every 15-20 hours), correct installation, and operation within the specified tractor horsepower and PTO speed range, a CMN Transmission CAT 6 Double CV PTO shaft for the DC132 is designed to provide multiple full cutting seasons of reliable service – typically three to five seasons at 150-200 hours per season, depending on crop conditions and terrain. The CV joints in this heavy duty PTO shaft use hardened alloy steel ball tracks that resist the fretting wear that limits the life of standard U-joint shafts. Individual PTO shaft parts (CV halves, yokes, slip clutch discs) are also available separately to extend total shaft assembly life through targeted component replacement.<\/p>\n![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/PTO-Shaft-for-Case-IH-Disc-Mower-8.webp\")
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Klantenrecensies<\/h2>\n
Marcus Hollingsworth, bedrijfsleider van een boerderij, Verenigde Staten<\/strong>
\n“Been running a DC132 on our 350-acre hay operation for years and we’ve gone through a couple of PTO shafts over time. Ordered this CAT6 Double CV replacement from CMN Transmission after the original Weasler unit finally wore through its CV joints after about four seasons. The fit was spot on – no shimming, no adapter needed, just slid straight onto the 1.375-21 spline and locked in. We’re about 200 hours in on the new shaft this year, cutting some pretty heavy alfalfa and mixed grass stands, and it hasn’t skipped a beat. Build quality feels solid, the guard tube isn’t flimsy like some aftermarket ones I’ve tried. Would order again without hesitation.”<\/p>\nJean-Pierre Moreau, Cereal and Forage Farmer, France<\/strong>
\n“I ordered the implement-side 50-degree CV half only, since the tractor-side joint was still serviceable. CMN Transmission’s team confirmed the exact part for my DC132 via email before I placed the order, which was reassuring since I wasn’t sure whether the half-shaft option would be stocked. It arrived in France in about 10 days, well-packaged and with all hardware included. Installing it took maybe an hour, mostly careful disassembly of the old joint. First cut after installation was smooth – noticeably less vibration at 1,000 RPM than the old worn joint was producing. Good quality, fair price, and the pre-sale support made a real difference. Recommended to two neighbors already.”<\/p>\nKlaus Hoffmann, Dairy Farm Operator, Germany<\/strong>
\n“Our DC132 runs three cuts of grass silage per season – probably 600 or more operating hours on the PTO shaft over three years before we replaced it. The original Weasler was completely worn in the CV joints by then, so we ordered the complete 55N 80×50 Double CV assembly from CMN. CE marking was important for us here in Germany – a shaft without CE documentation causes problems with our farm insurance if there’s an incident. This one comes with full compliance documentation, which the Walterscheid dealer said would cost triple the price. Installation took about 90 minutes start to finish. Very satisfied with the quality – the CV housing feels substantial and the guard tube fits perfectly.”<\/p>\nLiam O’Sullivan, Contractor, Ireland<\/strong>
\n“Running a contracting business with three Case IH discbines here and maintenance costs are always on my mind. Tried a cheaper aftermarket shaft two years ago from another supplier and it lasted one season before the guard bearings seized and the tractor-side CV joint started knocking. Switched to CMN Transmission for the DC132 replacement – the difference in component weight alone tells you something about the build quality. The CV joint housings are noticeably heavier gauge. About 350 hours on the new shaft across this season with no issues. The fact they also stock the disc mower gearboxes means I can source everything from one supplier, which saves me a lot of time tracking parts down. Shipping to Ireland was faster than expected too.”<\/p>\nRoberto Amorim, Livestock and Hay Producer, Brazil<\/strong>
\n“I was a bit uncertain about ordering a PTO shaft from Korea for my DC132 here in Mato Grosso do Sul, but a friend had good experience with CMN and pushed me to try. The technical team responded quickly to my email about spline sizes – my tractor has the large-bore 1.750-20 output, so I needed the correct tractor-side CV half for that configuration. They confirmed stock, provided shipping timeline, and followed up after delivery to check everything was good. The shaft arrived in good condition, no damage. Fit was correct on both the tractor and implement sides. We use the DC132 for Brachiaria and Panicum grass silage – heavy, dense crop – and the shaft has been absolutely solid for the past two seasons. Very good price compared to the authorized Case IH dealer quote.”<\/p>\nPieter, Arable and Grassland Farmer, Netherlands<\/strong>
\n“Ordered the complete Double CV shaft assembly for the DC132. Delivery to the Netherlands took about 12 working days from order confirmation, which is acceptable for a specialized agricultural PTO shaft part. The packing was professional – no transit damage. On the quality side, I compared it carefully against the original worn Weasler unit. The spline geometry is correct, the CV joint play is within spec, and the slip clutch adjustment feels positive and consistent. My one note: the grease nipples on this shaft require a standard straight grease gun coupler, not the flexible-nose type – just worth knowing before you start greasing the joints. Overall, very good value for a heavy duty agricultural PTO shaft and I would order from CMN again.”<\/p>\nJack Morrison, Mixed Farmer, Australia<\/strong>
\n“Source of spare parts for DC132 in rural Victoria can be an issue – the local Case IH dealer sometimes has weeks of wait on specialized driveline components. Found CMN Transmission online and enquired about the DC132 Double CV shaft. Got a response the same business day with part specs and price. Ordered the complete assembly. Shipping to Australia took around 14 days, which is quicker than I expected for this part of the world. The shaft is well-made – everything I can check physically is correct. Used it for our annual lucerne (alfalfa) cuts this spring – three cuts, roughly 600 acres total – and no problems whatsoever. Good to have a reliable overseas source for this type of part when local supply is unreliable.”<\/p>\nAlejandro Fuentes, Agricultural Contractor, Argentina<\/strong>
\n“We operate five Case IH discbines for contracted hay and silage work in the Pampas region – high-volume, demanding conditions. The PTO shaft is one of the highest-wear items we deal with, so finding a quality aftermarket source that can supply quickly and at a reasonable price is critical for us. CMN Transmission has been our supplier for two seasons now. We typically order two or three replacement assemblies at a time to keep stock on hand. The quality has been consistent between batches, which matters a lot when you need to swap a shaft on the field quickly. One suggestion I would give: ask CMN for the product dimensional drawing before your first order so you can pre-verify fit for your specific tractor-discbine combination. Excellent overall experience.”<\/p>\nThomas Gruber, Dairy and Beef Farmer, Austria<\/strong>
\n“I have been using a DC132 for mountain pasture cutting here in Styria for six seasons. The terrain is steep and the shaft angles are often near the limit of what a standard universal-joint shaft can handle, so the Double CV design is not optional for us – it is essential. The original Weasler unit served well but the replacement cost through the local dealer was simply too high given how often these need replacing in our conditions. CMN Transmission offered a price roughly 40% lower for an equivalent quality product. I have now run two seasons on this shaft without any CV joint issues. The 80-degree tractor-side angle capacity is the key feature for our terrain. Very happy with the value and the technical accuracy of the part.”<\/p>","protected":false},"excerpt":{"rendered":"CMN Transmission’s PTO shaft for Case IH Discbine DC132 Disc Mower is an engineered, factory-direct replacement built to the 55N Weasler 80×50 Double CV standard. Featuring a CAT 6 Double Constant Velocity main shaft, this 1,000 RPM tractor PTO drive shaft is engineered for 90 hp applications and accepts 1.375-inch x 21-spline tractor connections or 1.750-inch x 20-spline alternatives, with a 1.50-inch x 23-spline implement input.<\/p>","protected":false},"featured_media":6976,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[222,262],"product_tag":[232,228,242,234,264,233,226,229,263,265,235,243,225,230,231,224],"class_list":{"0":"post-7044","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pto-shafts","7":"product_cat-pto-shaft-for-discbine","8":"product_tag-1000-pto-shaft","9":"product_tag-540-pto-shaft","10":"product_tag-agricultural-pto-shaft","11":"product_tag-custom-pto-shaft","12":"product_tag-disc-mower-pto-shaft","13":"product_tag-heavy-duty-pto-shaft","14":"product_tag-pto-drive-shafts","15":"product_tag-pto-driveline-shaft","16":"product_tag-pto-shaft-for-disc-mower","17":"product_tag-pto-shaft-for-discbine","18":"product_tag-pto-shaft-for-tractor","19":"product_tag-pto-shaft-manufacturers","20":"product_tag-pto-shafts","21":"product_tag-pto-shafts-for-sale","22":"product_tag-tractor-pto-drive-shaft","23":"product_tag-tractor-pto-shaft","25":"first","26":"instock","27":"shipping-taxable","28":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product\/7044","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/comments?post=7044"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/media\/6976"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/media?parent=7044"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product_brand?post=7044"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product_cat?post=7044"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product_tag?post=7044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/04\/PTO-Shaft-for-Case-IH-Discbine-1.webp\")
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