Case IH DC132 圆盘式割草机动力输出轴

适用于凯斯IH圆盘割草机的可靠动力输出轴

PTO Shaft for Case IH Disc Mower Model: DC132 Disc Mower

The PTO shaft for Case IH Discbine DC132 Disc Mower from CMN Transmission is a precision-engineered, direct-fit replacement for the original 55N Weasler driveline shaft. Designed specifically for the DC132's 1,000 RPM 1-spline input system requiring a minimum 90 hp tractor, this agricultural PTO shaft features a CAT 6 Double Constant Velocity configuration with an 80-degree CV joint on the tractor side and a 50-degree CV joint on the implement side. The result is dramatically smoother power transfer at wide working angles, reduced vibration across the entire PTO driveline shaft, and longer service life compared with conventional universal-joint shafts. All critical components including the PTO shaft yoke, PTO shaft u joint assemblies, and PTO shaft guard tube are manufactured using precision CNC machining and high-grade alloy steel, making this a heavy duty PTO shaft built for commercial hay production seasons.

In the field, this disc mower PTO shaft connects directly between your tractor's output flange and the DC132's gearbox input, transmitting engine torque at 1,000 RPM to spin 10 cutting discs at 3,000 RPM across a 13-foot cutting width. Whether you are harvesting high-yield alfalfa, conditioning ryegrass for silage, or managing dense mixed pastures, having a reliable PTO drive shaft for discbine operations is non-negotiable. The slip clutch and overrunning clutch assembly integrated at the rear of the shaft provide essential driveline protection against sudden shock loads caused by rocks, stumps, or crop slugs - safeguarding both the tractor PTO shaft and the DC132's internal gearbox. CMN Transmission offers this PTO shaft for Case IH discbine as a complete double-CV assembly, or as individual tractor-side and implement-side halves for targeted replacement, reducing your parts cost and downtime.

主轴：CAT 6 双等速

原厂设备为拖拉机侧 55N Weasler 80 度万向节和圆盘耙侧 50 度万向节。输入轴通常为 1.50 英寸 x 23 齿花键。

技术规格

Features of PTO Shaft for Case IH Disc Mower

1. CAT 6 双等速设计
Unlike a standard PTO drive shaft using fixed universal joints, the CAT 6 Double CV configuration maintains constant rotational velocity across wide operating angles. This eliminates the cyclic vibration that destroys U-joints, gearbox seals, and tractor PTO components in heavy-duty disc mowing applications. For the DC132 running at 1,000 RPM across undulating terrain, smooth, vibration-free torque delivery directly translates to longer machine life and higher cutting quality.

2. Direct Replacement for Weasler 55N Series
This is a precision replacement of Weasler PTO shaft 55N components, engineered to the same dimensional and performance standards as the original equipment. The yoke geometry, spline profiles, CV joint operating angles (80 degrees tractor side, 50 degrees implement side), and guard tube outer dimensions all match factory specifications. No adapters, shimming, or machining are needed - this disc mower PTO shaft drops straight in, saving you time and avoiding costly installation errors during the busy hay season.

3. Multiple Spline Configurations for Broad Tractor Compatibility
The standard tractor connection is 1.375-inch (34.9 mm) x 21 splines, which aligns with the DC132's factory requirement and fits the majority of modern 90+ hp tractors. An alternative 1.750-inch x 20-spline PTO shaft yoke option accommodates larger-bore PTO outputs found on higher-horsepower tractors. Regardless of your tractor brand - John Deere, New Holland, AGCO, Fendt, or Massey Ferguson - CMN Transmission can advise on the correct tractor PTO shaft configuration for your specific combination.

4. Full PTO Shaft Guard and Cover System
Every assembly ships with a complete PTO shaft guard and PTO shaft cover system meeting CE safety requirements. The guard tube is manufactured from reinforced plastic with a high-impact outer shell, secured by a bearing-supported cone at each end to prevent rotation with the shaft. Compliance with CE and ISO safety standards is essential not only to protect operators from contact with rotating components but also to maintain insurance validity and legal compliance in jurisdictions requiring guarded agricultural PTO shafts.

5. Sold as Complete Assembly or Individual Halves
Not every driveline replacement requires a full new shaft. CMN Transmission supplies this PTO shaft as a complete 80x50 Double CV assembly, or as individual tractor-side (80-degree CV half) and implement-side (50-degree CV half) components. This modular approach to PTO shaft parts means you only replace what is worn or damaged, lowering cost-per-repair and reducing parts inventory. Specify your tractor spline size when ordering halves to ensure the correct PTO shaft yoke is matched to your tractor's output.

6. Precision CNC Machined with Heat-Treated Alloy Steel
Every PTO shaft tube, yoke, and CV joint ball track in this assembly is CNC machined from high-grade alloy steel and subjected to controlled heat treatment for surface hardness and core toughness. Tight dimensional tolerances ensure correct spline engagement depth and bearing preload across all joint assemblies. Finished surfaces receive corrosion-protective coating for protection during field operation and off-season storage. The result is a heavy duty PTO shaft with consistent performance across its full rated service life, regardless of field conditions.

圆盘式割草机动力输出轴的工作原理

The PTO driveline shaft on the Case IH DC132 Disc Mower is the mechanical link through which the tractor's engine power is transferred to the cutting and conditioning system of the discbine.

1. Power Take-Off at the Tractor
The tractor's PTO stub is a splined output shaft, typically rotating at exactly 1,000 RPM when the tractor's engine is at rated speed. For the DC132, the tractor must produce at least 90 hp (67 kW) at the PTO output. The tractor PTO drive shaft slides onto this splined stub - in standard DC132 configuration, engaging the 1.375-inch x 21-spline connection. A spring-loaded locking collar on the PTO shaft yoke snaps into a groove on the tractor stub to retain the shaft securely during operation. It is essential that the locking pin is fully engaged and that the specified spline sizes are matched precisely; even minor spline mismatches cause rapid fretting wear that accelerates yoke failure.

2. Torque Transmission Through the Double CV Assembly
A conventional 农业动力输出轴 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.

3. Slip Clutch Protection Mechanism
The 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.

4. Overrunning Clutch Function
The 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.

5. Power Delivery to the Cutterbar
At 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.

Application Areas

1. 干草收割
The 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.

2. Silage Production
Cutting 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.

3. Forage Harvesting
Mowing 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.

4. 覆盖作物终止
Cutting 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.

5. 牧场管理
Topping 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.

6. Roadside and Specialty Mowing
Maintaining 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.

How to Install PTO Shaft on Case IH Discbine

Step 1: Safety Preparation and Pre-Installation Checks
Before 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.

Step 2: Measure Required PTO Shaft Length and Dimensions
With 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.

Step 3: Install the Tractor-Side CV Yoke
Apply 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.

Step 4: Connect the Implement-Side CV Yoke
With 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.

Step 5: Attach the PTO Shaft Guard
Fit 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.

Step 6: Grease, Test, and Break-In
Before 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.

How to Choose the Right PTO Shaft for Disc Mower

1. Confirm Your Tractor PTO Spline Size and Speed
The 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.

2. Decide Between a Complete Assembly or Half Shaft
If 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.

3. Measure Shaft Length for Custom Applications
Standard 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.

4. Verify Slip Clutch Torque Setting for Your Crop Conditions
The 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.

5. Consider OEM vs. Aftermarket Quality Standards
Many 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.

Troubleshooting Common PTO Drive Shaft Issues

1. 问题：运行过程中振动过大
Cause: 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.

2. Problem: Slip Clutch Slipping Continuously
Cause: 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.

3. Problem: PTO Shaft Yoke Disconnects Under Load
Cause: 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.

4. Problem: Telescoping Shaft Sections Seizing or Difficult to Extend
Cause: 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.

5. Problem: Overheating at CV Joint Housing
Cause: 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.

圆盘割草机动力输出轴和圆盘割草机变速箱

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.

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.

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.

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.

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.

为什么选择 CMN Transmission 的农用动力输出轴？

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.

我们的优势：

• Global Reach, Local Knowledge: 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.
• Factory-Direct Pricing: 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.
• Technical Expertise and Pre-Sale Support: 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.
• Certified Quality Manufacturing: 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.
• Complete Product Range: 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.
• After-Sales Service and Support: 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.

常问问题

Q: What is the correct PTO shaft for the Case IH DC132 Disc Mower?
A: 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.

Q: Is this PTO shaft a replacement of Weasler PTO shaft components?
A: 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.

问：圆盘割草机的 540 型动力输出轴和 1000 型动力输出轴有什么区别？
A: 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.

Q: Can I order a custom PTO shaft length for a non-standard DC132 hitch configuration?
A: 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.

Q: How often should the DC132 discbine PTO shaft be greased?
A: 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.

Q: How does the PTO shaft with slip clutch protect the DC132 gearboxes?
A: 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.

Q: What PTO shaft guard and cover requirements apply to this shaft in European markets?
A: 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.

Q: What PTO shaft dimensions and spline sizes should I verify before ordering?
A: 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.

Q: How long does the CMN Transmission DC132 discbine PTO shaft typically last?
A: 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.

用户评价

马库斯·霍林斯沃思，农场经理，美国
"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."

Jean-Pierre Moreau, Cereal and Forage Farmer, France
"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."

克劳斯·霍夫曼，德国奶牛场经营者
“我们的DC132收割机每个季节收割三茬青贮饲料——动力输出轴在三年内可能运行了600多个小时，之后我们才更换了它。原装的Weasler万向节已经完全磨损，所以我们从CMN订购了完整的55N 80x50双万向节总成。在德国，CE认证对我们来说非常重要——如果发生事故，没有CE认证的轴会给我们的农场保险带来麻烦。这款轴带有完整的合规文件，而沃尔特沙伊德的经销商说，如果是后者，价格要贵三倍。安装从开始到结束大约花了90分钟。我们对质量非常满意——万向节壳体感觉很结实，护套管也完美贴合。”

利亚姆·奥沙利文，承包商，爱尔兰
“我经营一家承包公司，用三台凯斯IH圆盘割草机，维护成本一直是我关注的问题。两年前，我从另一家供应商那里买了一根便宜的副厂传动轴，结果只用了一个季度，护罩轴承就卡死了，拖拉机侧的万向节也开始发出异响。这次我换了CMN Transmission的DC132传动轴——光是部件重量的差异就能看出质量的好坏。万向节壳体明显更厚实。这个季度新传动轴已经用了大约350个小时，没有任何问题。他们还备有圆盘割草机变速箱，这意味着我可以从一个供应商那里采购所有配件，节省了我大量寻找零件的时间。而且，运到爱尔兰的速度也比预期的要快。”

罗伯托·阿莫林，巴西牲畜和干草生产商
“我之前有点犹豫要不要从韩国订购一根动力输出轴，用于我在南马托格罗索州的DC132拖拉机。不过一位朋友之前在CMN有过不错的体验，所以鼓励我试一试。CMN的技术团队很快就回复了我关于花键尺寸的邮件——我的拖拉机是1.750-20的大口径输出轴，所以我需要合适的拖拉机侧等速万向节半轴。他们确认了库存，提供了预计发货时间，并在发货后进行了回访，确认一切正常。动力输出轴完好无损地送到了。拖拉机侧和农具侧的安装都非常合适。我们用DC132收割臂形草和黍草青贮饲料——这些作物又重又密——这根动力输出轴在过去的两个收割季里表现非常出色。价格也比凯斯纽荷兰授权经销商的报价优惠很多。”

彼得，荷兰耕地和草地农民
我订购了DC132的双CV轴总成。从订单确认到发货到荷兰大约用了12个工作日，对于专业的农用动力输出轴部件来说，这个速度是可以接受的。包装很专业，没有运输损坏。质量方面，我仔细地将它与原装磨损的Weasler部件进行了比较。花键几何形状正确，CV接头间隙在规格范围内，滑动离合器的调节感觉清晰且稳定。需要注意的是：这个轴上的注油嘴需要标准的直式注油枪接头，而不是弯头式的——在开始给接头加注润滑脂之前，最好先了解一下。总的来说，对于重型农用动力输出轴来说，这是一款性价比很高的产品，我会再次从CMN订购。

杰克·莫里森，混合农场主，澳大利亚
在维多利亚州乡村地区，DC132拖拉机的备件供应一直是个问题——当地的凯斯纽荷兰（Case IH）经销商有时需要等待数周才能拿到专用的传动系统部件。我在网上找到了CMN Transmission公司，并咨询了DC132双CV轴。当天就收到了回复，其中包含了零件规格和价格。我订购了整套组件。运到澳大利亚大约用了14天，比我预期的要快得多。这根轴做工精良——我能检查到的所有部件都符合要求。今年春天，我们用它来收割苜蓿——收割了三茬，总共大约600英亩——没有任何问题。在本地供应不稳定的情况下，能找到可靠的海外供应商真是太好了。

Alejandro Fuentes，农业承包商，阿根廷
“我们在潘帕斯地区承接干草和青贮饲料的收割工作，使用五台凯斯IH圆盘式收割机，作业量大，条件艰苦。动力输出轴是我们最容易磨损的部件之一，因此找到一家能够快速供货且价格合理的优质售后供应商对我们至关重要。CMN Transmission 已经为我们提供两个季度的动力输出轴。我们通常一次订购两到三个替换总成，以保持库存充足。各批次的质量始终如一，这在需要快速更换田间作业轴时非常重要。我建议：在首次订购前向 CMN 索取产品尺寸图，以便预先确认其是否适合您特定的拖拉机-圆盘式收割机组合。整体体验非常棒。”

托马斯·格鲁伯，奥地利奶牛和肉牛养殖户
“我在施蒂利亚州用DC132割草机割山地牧草已经六个季度了。这里的地形陡峭，传动轴的角度经常接近标准万向节传动轴的极限，所以双CV轴对我们来说不是可选项，而是必不可少的。原装的Weasler传动轴性能不错，但考虑到在我们这种环境下更换的频率，通过当地经销商更换的成本实在太高了。CMN Transmission公司提供的同等质量产品价格低了大约40%。现在我已经用这根传动轴割了两个季度的草，没有出现任何CV接头问题。80度的拖拉机侧角度承载能力是我们这里地形的关键特性。我对这根传动轴的性价比和技术精度都非常满意。”