\n| Lead Time<\/td>\n | Ships within 5-7 days<\/td>\n | 2-4 weeks (dealer order)<\/td>\n | 2-6 weeks<\/td>\n | 1-3 weeks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nSquare Baler PTO Shaft and Square Baler Gearbox<\/h2>\nThe square baler PTO shaft and the square baler gearbox are the two most critical power transmission components in any large square baler system. While they serve distinct mechanical functions, they operate as an inseparable pair: the PTO shaft delivers rotational power from the tractor to the baler, and the gearbox converts that rotational input into the reciprocating motion that drives the baler’s plunger mechanism.<\/p>\n The PTO drive shaft connects to the gearbox input shaft via the spline connection at the baler end of the driveline. The gearbox, typically a heavy-duty right-angle or inline gear reduction unit, takes the 1000 RPM PTO input speed and converts it through a series of helical or bevel gears into the lower-speed, higher-torque reciprocating motion required to drive the plunger crank mechanism. The gearbox also incorporates the flywheel, which stores kinetic energy during the return stroke and releases it during the compression stroke, smoothing out the cyclic load demands on the PTO shaft and tractor engine. In Krone BiG Pack balers, the gearbox is an integrated, oil-bath enclosed unit that requires its own separate maintenance schedule of oil changes and gear inspection.<\/p>\n The condition of the PTO driveline shaft directly affects gearbox longevity, and vice versa. A PTO shaft with worn universal joints transmits vibration and cyclical speed variation into the gearbox input bearings and gear teeth, accelerating wear on these expensive internal components. Conversely, a gearbox with damaged or misaligned gears creates irregular resistance loads that stress the PTO shaft joints and telescoping tubes beyond their design limits. For this reason, when replacing either the PTO shaft or the gearbox, it is strongly recommended to inspect the other component thoroughly and address any wear before placing the baler back in service.<\/p>\n CMN Transmission manufactures both agricultural PTO shafts and square baler gearboxes, allowing us to engineer matched drivetrain solutions where the shaft torque capacity, spline interface, and rotational characteristics are precisely matched to the gearbox input requirements.<\/p>\n ![\"Square](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_Square-Baler-Gearbox-1.webp\") <\/p>\n
Why Choose CMN Transmission’s Agricultural PTO Shafts?<\/h2>\nCMN Transmission is a professional manufacturer and global exporter of high-quality power transmission components, including agricultural PTO shafts, gearboxes, hydraulic cylinders, bevel gears, and a comprehensive range of industrial drivetrain products. Based in Ansan, Gyeonggi-do, Korea, our manufacturing facility combines advanced CNC machining, precision heat treatment, and rigorous quality control processes to produce tractor PTO shafts that meet or exceed OEM specifications at competitive pricing.<\/p>\n What sets CMN Transmission apart from generic aftermarket PTO shaft suppliers is our engineering-first approach. Every PTO drive shaft we manufacture is designed from verified OEM dimensional data, not reverse-engineered approximations. Our engineering team maintains a database of spline profiles, yoke dimensions, tube lengths, and torque specifications for hundreds of tractor and implement combinations, ensuring every shaft we ship is a confirmed direct-fit replacement. When you order a PTO shaft for Krone BiG Pack from CMN, you receive the correct shaft for your exact baler model, not a generic unit that might need modification.<\/p>\n Our ISO and CE certifications are not just labels. Every shaft undergoes material testing, dimensional verification, hardness testing of critical wear surfaces, and dynamic balance checking before it leaves our facility. We use premium alloy steels for yokes and tubes, precision-ground bearing surfaces for universal joints, and source overrunning clutch components from established European manufacturers like Bondioli & Pavesi. This commitment to material quality and manufacturing precision is why our heavy duty PTO shaft products consistently deliver multi-season service life in demanding commercial baling operations.<\/p>\n Beyond product quality, CMN Transmission provides responsive technical support and fast global logistics. Our multilingual sales team can help you identify the correct shaft specifications for your equipment, provide detailed technical drawings and dimensional data before purchase, and arrange efficient international shipping through established freight networks. Whether you need a single replacement of Krone PTO shaft for your farm or a bulk order of PTO shaft parts for your dealership inventory, CMN Transmission delivers the product quality, technical expertise, and customer service that professional agricultural operations demand. Request a quote today and experience the CMN difference.<\/p>\n ![\"Factory](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/Factory-Equipment-3.webp\") ![\"Factory](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/Factory-Equipment-1.webp\") <\/p>\n
FAQ<\/h2>\nQ: What PTO shaft size do I need for a Krone BiG Pack large square baler?<\/strong>
\nA: For Krone BiG Pack models 890, 1270, 1290, 1290 HDP, 1290 XC, 12130 HDP, and 12130 XC, you need a CAT 7\/8 SFT SH series PTO shaft with 1.75-20 spline connections on both ends. The correct PTO shaft sizes for these large square balers require a minimum torque rating of 6,750 Nm and a 1000 RPM operational speed to match the baler’s power requirements. Always verify your exact spline count and diameter before ordering.<\/p>\nQ: Is this PTO shaft a direct replacement for the Walterscheid 2300 and 2500 series?<\/strong>
\nA: Yes, this CMN Transmission PTO shaft for square baler is engineered as a direct drop-in replacement for Walterscheid 2200, 2300, and 2500 series PTO shafts used on Krone BiG Pack balers. The spline dimensions, yoke configurations, tube lengths, and mounting interfaces are dimensionally identical, so no PTO shaft adapter or modification is required for installation.<\/p>\nQ: What is the difference between a 540 PTO shaft and a 1000 PTO shaft?<\/strong>
\nA: A 540 PTO shaft rotates at 540 RPM and typically uses a 1-3\/8 inch, 6-spline connection, while a 1000 PTO shaft rotates at 1000 RPM and uses a 1-3\/4 inch, 20-spline connection. Krone BiG Pack large square balers require the 1000 RPM configuration because the higher speed delivers the power density needed for heavy commercial baling. Using the wrong PTO speed will result in inadequate baler performance or equipment damage.<\/p>\nQ: Does this PTO shaft come with an overrunning clutch included?<\/strong>
\nA: Yes, the SH series configuration for Krone BiG Pack balers includes the Bondioli & Pavesi RA3 overrunning clutch device. This slip clutch PTO shaft component is essential for large square balers because it protects the tractor PTO gearbox from reverse torque when the baler’s heavy flywheel continues spinning after the PTO is disengaged. Some smaller Krone models use the 2500 series with F5 overrunning clutch options.<\/p>\nQ: How often should I grease my square baler PTO shaft universal joints?<\/strong>
\nA: Grease all PTO shaft u joint bearings every 8 operating hours during active baling. Use EP2 lithium complex grease and pump through the zerk fittings until fresh grease appears at all four bearing cap seals on each joint. The telescoping PTO shaft tube profiles and spline connections should be greased every 20 hours. Regular lubrication is the most important maintenance task for maximizing shaft life and preventing costly mid-season failures.<\/p>\nQ: Can I use this PTO shaft on other square baler brands besides Krone?<\/strong>
\nA: While this PTO shaft for Krone square baler is specifically engineered for Krone BiG Pack models, the spline configuration (1.75-20) is a common industry standard used by several European baler manufacturers. However, the overall shaft length, tube profile, and overrunning clutch specifications are matched to Krone BiG Pack dimensions. Contact CMN Transmission with your specific baler model to verify compatibility before ordering a custom PTO shaft for a different brand.<\/p>\nQ: What is the advantage of a constant velocity PTO shaft over a standard U-joint shaft?<\/strong>
\nA: A constant velocity tractor PTO drive shaft maintains uniform rotational speed regardless of the operating angle between the tractor and baler, while a standard PTO shaft universal joint causes the output speed to fluctuate twice per revolution at any angle other than straight. For large square balers, this CV advantage translates to reduced vibration, smoother plunger operation, more uniform bale density, and significantly less mechanical stress on the baler gearbox bearings and gears.<\/p>\nQ: How do I know when my PTO shaft needs replacement?<\/strong>
\nA: Key indicators that your PTO drive shafts need replacement include: any perceptible play or looseness in the universal joints, clicking or clunking sounds during operation, visible scoring on the telescoping tube profiles, cracked or bent yoke ears, persistent vibration that cannot be resolved by greasing, or a safety guard that contacts the rotating shaft due to worn bearing supports. Operating a worn shaft risks sudden catastrophic failure and potential damage to the baler gearbox.<\/p>\nQ: Can CMN Transmission supply PTO shaft parts and components separately?<\/strong>
\nA: Yes, in addition to complete PTO driveline shaft assemblies, CMN Transmission supplies individual PTO shaft parts including replacement PTO shaft yoke assemblies, PTO shaft u joint cross and bearing kits, telescoping PTO shaft tube sets, PTO shaft cover safety guards, overrunning clutch units, and PTO shaft shear bolt hardware. Contact us with your part number or shaft specifications and we can supply individual components for field repair or scheduled maintenance replacement.<\/p>\n![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_PTO-Shaft-for-Krone-Large-Square-Baler-3.webp\") <\/p>\n
Customer Reviews<\/h2>\nMarcus Hollingsworth, Farm Manager, United States
\n<\/strong>“Been running a Krone BiG Pack 1290 on our 900-acre wheat and hay operation in Kansas for six years now, and we finally needed to replace the original Walterscheid PTO shaft after the U-joints wore out around season five. Ordered the CAT 7\/8 constant velocity replacement from CMN Transmission and the fit was perfect on the 1.75-20 spline, no adapter needed, no shimming, just slid right on. We’re about 220 hours into the new shaft this season, baling mostly wheat straw and some heavy alfalfa, and it runs noticeably smoother than the old one ever did. The safety guard is solid, not that cheap thin plastic you see on some aftermarket shafts. Would order again without hesitation.”<\/p>\nKlaus Weber, Agricultural Contractor, Germany
\n<\/strong>“We operate three Krone BiG Pack 12130 XC balers for our contracting business in Niedersachsen and go through a lot of PTO shaft parts over a season because of the heavy workload. Switched to CMN Transmission shafts last year as a trial on one machine and the results have been excellent. The constant velocity joint runs much quieter than the old shafts we had, and the overrunning clutch engages cleanly every time. What really impressed me was the customer service. I emailed with some technical questions about the spline configuration before ordering and got a detailed response with diagrams within a few hours. We have now ordered shafts for all three balers.”<\/p>\nJean-Pierre Moreau, Grain Farmer, France
\n<\/strong>“Bought this PTO shaft for my Krone BiG Pack 890 after the dealer quoted me nearly twice the price for an OEM Walterscheid replacement. I was skeptical about aftermarket quality, I will admit, but after a full harvest season of baling wheat straw and barley straw, about 150 hours, the shaft is performing perfectly. The 6,750 Nm torque rating gives me confidence when baling heavier material. Shipping to France took about 12 days, which was a bit longer than I hoped, but the packaging was excellent and the shaft arrived in perfect condition. Fair trade-off for the savings.”<\/p>\nRajesh Patil, Farm Equipment Dealer, India
\n<\/strong>“We stock CMN Transmission PTO shafts for our customers who run Krone and other European square balers for rice straw and sugarcane trash baling. The build quality is consistent across every unit we have received, and we have ordered over twenty shafts in the past two years. Our customers in Maharashtra and Punjab especially appreciate the robust construction because they are baling in dusty, high-temperature conditions that are very tough on PTO shaft components. The 1000 RPM rated speed and heavy duty construction handle the Indian operating conditions well. CMN gives us good wholesale pricing and the communication is always professional.”<\/p>\nTom Richardson, Hay Exporter, Australia
\n<\/strong>“We run a large-scale hay export operation out of south-eastern Australia, baling oaten hay and lucerne with Krone BiG Pack 1290 HDP balers. Baling for export means we need consistently dense bales, and the constant velocity PTO shaft from CMN makes a real difference compared to standard U-joint shafts. The smooth power delivery helps our operators maintain uniform bale density at higher ground speeds. We have been using these shafts for two seasons now, roughly 400 hours each, and they are holding up well. The grease fittings are accessible and the telescoping tube action is still smooth. Good value for a commercial operation.”<\/p>\nCarlos Mendoza, Ranch Foreman, Argentina
\n<\/strong>“Needed a replacement PTO drive shaft for our Krone BiG Pack 1270 quickly during baling season. Contacted CMN Transmission and they were able to ship within a week, which was faster than any other supplier I contacted. The shaft arrived well packaged with all the documentation including the spec sheet for the overrunning clutch. Installation took about 30 minutes, straightforward bolt-on replacement. The only small issue was the shipping cost to Argentina was a bit high, but the product price itself was very competitive compared to Walterscheid OEM pricing. Overall satisfied with the purchase and it has been running well for about 90 hours now.”<\/p>\nPieter van der Berg, Dairy Farmer, Netherlands
\n<\/strong>“We bale grass silage with our Krone BiG Pack 1290 XC and the wet, heavy material is brutal on PTO shafts. My previous aftermarket shaft lasted barely one season before the U-joints failed. The CMN Transmission shaft has been a completely different experience. The constant velocity design handles the high torque loads of wet silage baling without the vibration issues I had before. I am particularly impressed with the overrunning clutch; it engages and releases smoothly every time, which gives me confidence that our tractor PTO gearbox is protected. Going into our second season with it now and everything still feels tight and solid.”<\/p>\nJames McAllister, Contract Baler, United Kingdom
\n<\/strong>“As a contract baler running a Krone BiG Pack 12130 HDP, I need equipment I can depend on during the short British baling window. Lost half a day last season when our old shaft failed mid-field, so I ordered a spare CMN Transmission shaft to carry on the trailer. The quality is genuinely impressive for the price. The guard is well-made with proper bearing supports at both ends, the spline fit is precise with no slop, and the grease nipples are positioned where you can actually reach them, which sounds minor but makes a huge difference when you are greasing every 8 hours in the field. Already recommended CMN to two other contractors in our area.”<\/p>\nMehmet Yilmaz, Agricultural Cooperative Manager, Turkey
\n<\/strong>“Our cooperative in the Konya region operates several Krone large square balers for wheat straw and we purchased three CMN Transmission PTO shafts earlier this year. The product quality is good and consistent across all three units, and the 1.75-20 spline matched our tractors and balers without any adapter needed. Delivery to Turkey took about 15 days, which was acceptable. One thing I especially appreciate is the technical documentation that came with the shafts, including torque specifications and a lubrication schedule. It helps our less experienced operators maintain the shafts correctly. The price was about 35% below OEM pricing, which matters when you are buying multiple units for a cooperative.”<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"The PTO shaft for Krone square baler is a high-performance tractor PTO drive shaft designed as a direct-fit replacement for Krone BiG Pack large square baler models 890, 1270, 1290, 1290 HDP, 1290 XC, 12130 HDP, and 12130 XC. Built around a CAT 7\/8 SFT SH series constant velocity assembly, this heavy duty PTO shaft delivers smooth, uninterrupted rotational power from your tractor to the baler plunger mechanism at up to 200+ horsepower and 1000 RPM.<\/p>","protected":false},"featured_media":6346,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[222,244],"product_tag":[232,228,242,234,233,226,229,245,235,243,225,230,246,231,224],"class_list":{"0":"post-6407","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pto-shafts","7":"product_cat-pto-shaft-for-square-baler","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-heavy-duty-pto-shaft","13":"product_tag-pto-drive-shafts","14":"product_tag-pto-driveline-shaft","15":"product_tag-pto-shaft-for-square-baler","16":"product_tag-pto-shaft-for-tractor","17":"product_tag-pto-shaft-manufacturers","18":"product_tag-pto-shafts","19":"product_tag-pto-shafts-for-sale","20":"product_tag-square-baler-pto-shaft","21":"product_tag-tractor-pto-drive-shaft","22":"product_tag-tractor-pto-shaft","24":"first","25":"instock","26":"shipping-taxable","27":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/product\/6407","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/comments?post=6407"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/media\/6346"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/media?parent=6407"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/product_brand?post=6407"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/product_cat?post=6407"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/product_tag?post=6407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |
![\"PTO](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_PTO-Shaft-for-Krone-Square-Baler-2.webp\")
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<\/td>\n![\"Replacement](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_Replacement-of-Walterscheid-2300-PTO-Shaft.webp\")
<\/p>\n![\"Replacement](\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_Replacement-of-Walterscheid-2500-PTO-Shaft.webp\")
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