{"id":264,"date":"2026-07-23T06:03:08","date_gmt":"2026-07-23T06:03:08","guid":{"rendered":"https:\/\/superiortransmissioninc.com\/?post_type=product&p=264"},"modified":"2026-07-23T06:03:08","modified_gmt":"2026-07-23T06:03:08","slug":"ep-square-baler-pto-shaft-for-krone-bigpack-1290-1290hdp-1290xc-12130xc","status":"publish","type":"product","link":"https:\/\/superiortransmissioninc.com\/tr\/urun\/ep-square-baler-pto-shaft-for-krone-bigpack-1290-1290hdp-1290xc-12130xc\/","title":{"rendered":"EP-Square Baler PTO Shaft for Krone BIGpack 1290 \/ 1290HDP \/ 1290XC \/ 12130XC"},"content":{"rendered":"
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EP-PTO Shaft for Krone BIGpack Square Balers 1290 \/ 1290HDP \/ 1290XC \/ 12130XC<\/h2>\n

The EP-PTO Shaft for Krone BIGpack<\/strong> is an engineering-grade Square Baler PTO Shaft<\/strong> designed specifically for the demanding drivetrain requirements of the Krone BIGpack high-density large square baler range \u2014 covering models 890, 1270, 1290, 1290 HDP, 1290 XC, 12130 HDP, and 12130 XC. Built around a CAT 7\/8 SFT SH Series Constant Velocity joint configuration rated for 200 HP and beyond at 1,000 rpm, this square baler pto shaft is engineered for the sustained high-torque shock load environment that heavy-throughput large square baling creates. Part number CSHR121U2WR0017G with a maximum rated torque of 6,750 Nm, it delivers the structural performance that BIGpack operators depend on across wheat harvest in France and Germany, hay baling in Australia and New Zealand, and straw collection contracts across North America’s grain belt. Both standard and splined variants are available, with the splined version recommended for operators requiring extended service life under maximum-load baling conditions. The shaft accommodates both 1 3\/4″ Z=20 and 1 3\/4″ Z=6 tractor-side spline configurations and features a minimum closed length of 1,669 mm (Lmin), a telescoping section minimum of 1,210 mm (Lw, Lt, Ls), and the full-coverage safety guard required for regulatory compliance in all major agricultural markets.<\/p>\n<\/div>\n

Technical Specifications \u2014 EP-PTO Shaft for Krone BIGpack 1290 \/ 1290HDP \/ 1290XC \/ 12130XC<\/h2>\n

The dimensional and performance data below is extracted from the engineering drawings for the CSHR121U2WR0017G assembly. Both drawing configurations (Drawing 1: metric, Drawing 2: imperial\/metric hybrid) are represented below. Contact our technical team for full DXF dimensional drawings for OEM integration or cross-reference verification.<\/p>\n

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Parameter<\/th>\nSquare Baler PTO Shaft Specification<\/th>\nNotes<\/th>\n<\/tr>\n<\/thead>\n
Part Number<\/td>\nCSHR121U2WR0017G<\/td>\nKrone BIGpack square baler PTO shaft<\/td>\n<\/tr>\n
Maximum Torque Rating<\/td>\n6,750 Nm<\/td>\nPeak rated torque<\/td>\n<\/tr>\n
Joint Type \u2014 Tractor Side<\/td>\nCAT 7\/8 SFT SH Series Constant Velocity (CV)<\/td>\nSmooth power transmission at high angles<\/td>\n<\/tr>\n
Rated PTO Speed<\/td>\n1,000 rpm<\/td>\nStandard 1,000 rpm PTO class<\/td>\n<\/tr>\n
Rated Power Capacity<\/td>\n200 HP and above<\/td>\nAt rated 1,000 rpm PTO speed<\/td>\n<\/tr>\n
CV Joint Max Operating Angle<\/td>\n75\u00b0<\/td>\nTractor-side CV joint limit<\/td>\n<\/tr>\n
Tractor-Side Spline \u2014 Option 1<\/td>\n1 3\/4″ Z=20 (1.75-20)<\/td>\nStandard large-frame tractor PTO<\/td>\n<\/tr>\n
Tractor-Side Spline \u2014 Option 2<\/td>\n1 3\/4″ Z=6 (1.75-6)<\/td>\n6-spline PTO stub<\/td>\n<\/tr>\n
Baler-Side Spline (Drawing 1)<\/td>\n1 3\/4″ Z=20<\/td>\nKrone BIGpack input shaft<\/td>\n<\/tr>\n
Minimum Closed Length (Lmin)<\/td>\n1,669 mm<\/td>\nOverall shaft minimum closed length<\/td>\n<\/tr>\n
Telescoping Section Min (Lw, Lt, Ls)<\/td>\n1,210 mm<\/td>\nWorking \/ telescoping section minimum<\/td>\n<\/tr>\n
CV Joint Assembly Length (tractor side)<\/td>\n167 mm + 150 mm sections<\/td>\nCV joint body dimensions<\/td>\n<\/tr>\n
CV Joint Guard Diameter<\/td>\n\u00d8233 mm (tractor side), \u00d8201 mm (baler side)<\/td>\nGuard outer diameter at each end<\/td>\n<\/tr>\n
Guard Clearance Zone (tractor side)<\/td>\n40 mm<\/td>\nAxial clearance dimension<\/td>\n<\/tr>\n
Shaft Tube Length (each section)<\/td>\nL=925 mm each side<\/td>\nTelescoping inner and outer tube sections<\/td>\n<\/tr>\n
Closed Length (Drawing 2)<\/td>\n48″ = 1,219 mm (locking grooves closed)<\/td>\nWith locking grooves engaged<\/td>\n<\/tr>\n
Extended Length (Drawing 2)<\/td>\n54″<\/td>\nMaximum extended working length<\/td>\n<\/tr>\n
Collapsed (inner tube closed, Drawing 2)<\/td>\n33″ closed<\/td>\nInner tube collapsed<\/td>\n<\/tr>\n
Splined Tube Specification<\/td>\n45 mm x 16 spline<\/td>\nSplined version; 23″ = 584 mm overall<\/td>\n<\/tr>\n
Tube Profile Overlap Length<\/td>\n16″ = 406 mm (inner tube engagement)<\/td>\nSplined inner section engagement<\/td>\n<\/tr>\n
CV Joint Housing Width (Drawing 2)<\/td>\n317 mm<\/td>\nCV joint body width measurement<\/td>\n<\/tr>\n
Compatible Baler Models<\/td>\nKrone BIGpack 890, 1270, 1290, 1290 HDP, 1290 XC, 12130 HDP, 12130 XC<\/td>\nFull BIGpack HDP \/ XC series coverage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Five Key Product Advantages of Square Baler PTO Shaft<\/h2>\n
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\u25b6 6,750 Nm Maximum Torque \u2014 Purpose-Built for BIGpack Duty Cycles<\/div>\n

The CSHR121U2WR0017G carries a factory-verified maximum torque rating of 6,750 Nm \u2014 one of the highest torque specifications in the aftermarket large square baler pto shaft<\/strong> category. Krone BIGpack 1290 HDP and 12130 XC machines are high-density balers that generate some of the most intense cyclic torque spikes encountered in any agricultural PTO application. Every plunger compression stroke on a fully loaded BIGpack at maximum bale density creates a torque peak that must be absorbed by the PTO shaft without accumulating fatigue damage. A shaft rated to 6,750 Nm provides the structural safety margin that sustained high-density baling demands, particularly during the long daily operating windows of contract baling in wheat and barley regions across Europe, Australia, and the Americas.<\/p>\n<\/div>\n

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\u25b6 CAT 7\/8 SFT SH Series Constant Velocity Joint \u2014 Smooth Power at High Angles<\/div>\n

The CAT 7\/8 SFT SH Series Constant Velocity (CV) joint at the tractor-side end of this square baler pto shaft<\/strong> is the central engineering differentiator from standard double-cross-joint configurations. A CV joint transmits torque at a constant angular velocity regardless of the operating angle between tractor and baler \u2014 eliminating the velocity variation that a standard u-joint introduces at working angles above approximately 7 degrees. For BIGpack operators who work on irregular terrain, tight headlands, or hillside fields, the CV joint means the baler input shaft receives smooth, pulse-free power even when the tractor-to-baler angle is large, reducing the cyclic loading on the baler’s flywheel shaft and input gearbox bearings that standard joints would impose.<\/p>\n<\/div>\n

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\u25b6 200 HP+ Rated at 1,000 rpm \u2014 Full BIGpack Power Class Coverage<\/div>\n

The Krone BIGpack 1290 XC and 12130 XC are among the highest-throughput large square balers on the market, typically paired with tractors in the 180\u2013280 HP range running at 1,000 rpm PTO. This square baler pto shaft<\/strong> is rated for operation at 200 HP and beyond at 1,000 rpm, giving it the power capacity to cover the full spectrum of tractors used with this baler series \u2014 from the lower end of the BIGpack pairing range up to the largest modern high-HP tractors used in North American and Eastern European high-output baling operations. Any tractor drive shaft under-specified for the actual tractor power in use will fail through cross-joint fatigue within a season; this unit provides genuine headroom above the 200 HP threshold.<\/p>\n<\/div>\n

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\u25b6 75\u00b0 CV Joint Operating Angle \u2014 Exceptional Headland Flexibility<\/div>\n

The tractor-side CV joint assembly is rated to operate at up to 75 degrees of angular displacement from the shaft centreline \u2014 a specification visible in both engineering drawings. This extreme angle capability is not needed in normal straight-line baling but becomes critical during tight headland turns on smaller fields, where the tractor may need to turn sharply while the PTO remains engaged to keep the baler flywheel running at operational speed. A standard double-cross-joint shaft would bind or transmit severe velocity pulses at angles above 25\u201330 degrees; the 75-degree CV joint rating of this assembly provides the flexibility to handle any headland geometry likely to be encountered in practical field use across Europe, the UK, and North America.<\/p>\n<\/div>\n

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\u25b6 Splined Tube Option \u2014 Extended Service Life Under Maximum Load<\/div>\n

While the standard telescoping tube configuration is adequate for typical baling conditions, the splined tube variant of this pto shaft baler<\/strong> assembly offers meaningfully extended service life in high-intensity use. The 45 mm x 16 spline profile (as shown in the second engineering drawing) provides a greater load-bearing contact area across the sliding interface compared to a profile-bore arrangement, reducing the local surface pressure at the tube contact zone and slowing the wear rate under sustained high-torque telescoping action. For large contractors running BIGpack machines at or near maximum capacity across extended daily shifts through peak harvest seasons, the splined version is the investment that pays back through fewer mid-season replacement events.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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How the Krone BIGpack Square Baler PTO Shaft Works<\/h2>\n

A Square Baler PTO Shaft<\/strong> is the mechanical link between the tractor’s engine output and the baler’s working mechanisms \u2014 and on a high-density machine like the Krone BIGpack 1290 HDP or 12130 XC, that link must handle some of the most demanding torque conditions found in agricultural machinery. Understanding how this assembly functions helps operators make better decisions about installation, maintenance, and selection.<\/p>\n

Power leaves the tractor through the 1 3\/4″ spline PTO stub (Z=20 or Z=6 depending on tractor model) at 1,000 rpm. The CSHR121U2WR0017G’s tractor-side CAT 7\/8 SFT SH Constant Velocity joint receives this rotational input. Unlike a standard cross-joint (u-joint), which introduces a sinusoidal velocity variation at operating angles above about 7 degrees, the CV joint transmits torque at a completely constant angular velocity regardless of the shaft angle \u2014 up to the 75-degree maximum shown in the engineering drawings. This smooth, pulse-free transmission is especially important for the Krone BIGpack’s flywheel-assisted plunger drive, where velocity pulses from a non-CV joint would introduce cyclical loading on the flywheel shaft bearings and the baler input gearbox that accumulates as fatigue damage over time.<\/p>\n

From the CV joint, power passes through the telescoping shaft body \u2014 either the standard profile bore or the 45 mm x 16 spline configuration \u2014 to the baler-side cross-joint, which connects to the baler’s input gearbox stub. The telescoping tube allows the overall shaft length to vary between 1,219 mm (locking grooves closed) and 54″ extended as the tractor-to-baler geometry changes during field work. The 925 mm equal-length tube sections on each side of the centre bearing provide balanced telescoping action across the full working length range. The full-coverage guard assembly \u2014 \u00d8233 mm at the tractor side and \u00d8201 mm at the baler side \u2014 encloses the entire rotating assembly, remaining stationary through friction against the guard bearing rings while the shaft rotates within it.<\/p>\n<\/div>\n

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Large Square Baler PTO Shaft Design Features<\/h2>\n

The engineering requirements for a PTO Shaft for Square Baler<\/strong> applications at the BIGpack power level are substantially more demanding than those for lighter-duty implements. The following design elements in the CSHR121U2WR0017G reflect the specific operating conditions of the BIGpack series.<\/p>\n

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Length & Telescoping Range<\/h3>\n

The overall minimum closed length of 1,669 mm and a working telescoping section minimum of 1,210 mm give this shaft the length needed to span the tractor-to-baler distance on the large-frame tractors paired with the Krone BIGpack range. The 48″-to-54″ working range in the imperial drawing corresponds to the typical distance variation encountered on BIGpack operations during headland turns and field undulations. Measuring the correct tractor pto shaft length<\/strong> for a specific tractor-baler combination before ordering ensures the shaft telescopes freely throughout the full working range without bottoming out or over-extending.<\/p>\n<\/div>\n

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Spline Interface Options<\/h3>\n

Both 1 3\/4″ Z=20 and 1 3\/4″ Z=6 tractor-side spline options are available, covering the full range of large-frame tractors used with the BIGpack series in Europe, North America, and Australia. The 45 mm x 16 spline profile in the splined tube version provides a substantially larger contact area across the telescoping interface than a standard profile-bore design \u2014 the key engineering advantage that justifies the splined version for operators in high-intensity, extended-duration baling contexts. The square baler pto shaft<\/strong> components in both versions are dimensionally matched to the BIGpack input shaft specification to ensure correct engagement depth and spline contact at both ends of the assembly.<\/p>\n<\/div>\n

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Safety Guard System<\/h3>\n

The full-coverage safety guard \u2014 \u00d8233 mm at the tractor-side CV joint and \u00d8201 mm at the baler-side cross-joint \u2014 meets EN 12965 requirements for PTO shaft guards in EU and UK markets, and satisfies the equivalent ASABE S203 requirements for North American agricultural operations. Two safety retaining chains are visible in the engineering drawing, securing the guard to both the tractor and baler to prevent co-rotation. The larger-diameter guard at the CV joint end reflects the physically larger CV joint housing \u2014 a practical consequence of the higher torque capacity and greater joint complexity of the constant velocity design relative to a simple cross-joint.<\/p>\n<\/div>\n

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Universal Joints at Baler End<\/h3>\n

The baler-side connection uses a standard heavy-duty cross-joint (u-joint) rather than a second CV joint, which is the typical design arrangement for this application \u2014 the baler input shaft angle relative to the shaft body is smaller and more consistent than the tractor-side angle, making the additional cost and complexity of a second CV joint unnecessary. The baler-side pto shaft u joint<\/strong> is dimensioned for the 6,750 Nm rated torque of the assembly, with cross-journal size and needle roller bearing cup specifications chosen for the cyclic high-load duty cycle of BIGpack operation.<\/p>\n<\/div>\n

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Locking Groove Mechanism<\/h3>\n

The locking grooves visible in the Drawing 2 configuration allow the telescoping tube to be locked at a fixed length for transport or storage, preventing the inner tube from extending under gravity when the shaft is disconnected and stored horizontally. The 1,219 mm (48″) closed-groove length and the 33″ fully collapsed dimension bracket the range of storage and transport configurations the operator needs to accommodate. The reference tooth marking on the outer tube aids re-engagement in the correct angular position when reconnecting the telescoping sections after cleaning or maintenance.<\/p>\n<\/div>\n

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Tractor Compatibility \u2014 BIGpack Fleet Coverage<\/h3>\n

Krone BIGpack 1290, 1290 HDP, 1290 XC, and 12130 XC machines are paired with tractors ranging from 180 HP mid-size to 350 HP+ articulated or large-frame units across global markets. The CSHR121U2WR0017G’s 200 HP+ at 1,000 rpm rating and 6,750 Nm torque capacity cover the full tractor size range used with this baler series. The 1 3\/4″ Z=20 and Z=6 spline options on the tractor side ensure compatibility with the major tractor brands used with these balers in Germany, France, the UK, the US midwest, and Australia without requiring adaptor collars or shaft modification.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Material Specification & Construction Quality<\/h2>\n

The material requirements for a 6,750 Nm rated square baler pto shaft<\/strong> are substantially more demanding than those for lighter-duty PTO applications. The cross-journal bearings, yoke forgings, and tube wall sections must all be sized and manufactured to handle both the continuous rated torque and the shock torque peaks that characterise large square baler operation.<\/p>\n

The CV joint housing and associated yoke forgings are produced from medium-alloy steel, heat treated to achieve the combination of surface hardness and core toughness needed for both the rolling contact fatigue at the CV joint ball races and the impact toughness required at the yoke root sections. The inner ball race, outer bell housing, and intermediate elements of the CAT 7\/8 SFT SH CV joint are precision-machined to close tolerances and assembled with pre-loaded rolling elements that eliminate internal clearance \u2014 critical for smooth constant velocity performance and for minimising the vibration excitation that internal clearance in a high-torque joint would generate at 1,000 rpm.<\/p>\n<\/div>\n

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Installation & Measurement Guide for Krone BIGpack PTO Shaft<\/h2>\n
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How to Measure the PTO Shaft Length<\/h3>\n

To confirm the correct square baler pto shaft<\/strong> length for your specific tractor-BIGpack combination: hitch the baler to the tractor in the normal working position on level ground. Measure the straight-line distance from the tractor PTO stub face to the baler gearbox input stub face. This is the working length. The shaft must compress to approximately 75% of this distance to accommodate full headland turns (the 1,219 mm locking groove dimension is a reference). Verify that the 54″ extended length provides the required clearance at maximum extension. Confirm the tractor PTO stub spline count (Z=20 or Z=6) and diameter (1 3\/4″) before ordering to select the correct tractor-side yoke configuration.<\/p>\n<\/div>\n

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How to Attach the PTO Shaft to the BIGpack<\/h3>\n

Before connecting the shaft, ensure the tractor is parked, the engine is off, and the PTO is disengaged. Align the tractor-side CV joint yoke with the tractor PTO stub \u2014 the splines must align before the yoke can slide on. Rotate slightly until the splines engage, then push fully home until the locking collar clicks into the retention groove on the stub. Secure the tractor-side guard chain to the tractor drawbar or designated anchor point. Connect the baler-side yoke to the Krone BIGpack input shaft in the same way, engaging the locking collar and securing the baler-side chain to the baler frame anchor.<\/p>\n<\/div>\n

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How to Remove the PTO Shaft from the Tractor<\/h3>\n

Safe removal of the pto shaft<\/strong> begins with stopping the tractor completely \u2014 engine off, PTO disengaged, parking brake engaged, and all rotation confirmed to have ceased. Disengage the guard chains at both tractor and baler anchor points. At the tractor PTO stub, press or pull the CV joint yoke’s spring-loaded locking collar to release the retention engagement, then pull the yoke clear of the stub splines. The baler-side cross-joint yoke is released at the Krone BIGpack input shaft in the same way. When removing the shaft from a warm baler after a working session, be aware that CV joint housings can retain heat for extended periods \u2014 use gloves when handling the CV joint end for the first few minutes after PTO disengagement. Store the shaft horizontally with the locking grooves engaged to prevent unintended extension.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\"superiortransmissioninc-products-EP-Square<\/p>\n

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Application Scenarios of Square Baler PTO Shaft<\/h2>\n

The Krone BIGpack 1290, 1290 HDP, 1290 XC, and 12130 XC are among the highest-throughput large square balers operating in agricultural markets worldwide. This Square Baler PTO Shaft<\/strong> assembly serves the full range of crop types and regional contexts where these machines are deployed.<\/p>\n

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High-Density Straw Baling \u2014 Germany, France & UK<\/h3>\n

The Krone BIGpack HDP models are specifically engineered for maximum bale density, making them a preferred choice for straw export markets across Germany, France, and the UK, where bale density directly affects transport economics. High-density baling places the greatest cyclic torque demand on the pto shaft baler<\/strong> drivetrain \u2014 the 6,750 Nm rated CSHR121U2WR0017G provides the structural margin needed for sustained HDP operation across long daily contract shifts during harvest. Dealers serving BIGpack HDP fleet operators in these markets benefit from stocking this shaft ahead of the harvest season when replacement demand peaks and lead time tolerance is minimal.<\/p>\n<\/div>\n

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Hay & Haylage Baling \u2014 Australia & New Zealand<\/h3>\n

Large square balers including the Krone BIGpack 1290 XC are used for high-value export hay production across Australia’s hay belt and New Zealand’s pastoral regions. The variable moisture content of hay crops \u2014 from 15% in well-cured lucerne to over 35% in haylage \u2014 creates highly variable torque demand on the baler PTO drivetrain. The CV joint design of this shaft maintains smooth, consistent power delivery regardless of how abruptly the torque demand changes as the baler moves from light to dense crop zones across the paddock, protecting both the baler input gearbox and the tractor PTO from the velocity pulses that a standard joint would introduce under variable loading.<\/p>\n<\/div>\n

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Corn Stover & Biomass Collection \u2014 US Midwest & Canada<\/h3>\n

Krone BIGpack machines are widely used for corn stover and biomass collection across Iowa, Illinois, Indiana, and the Canadian prairie provinces. Stover is an abrasive, high-volume crop that places sustained load on the baler drivetrain across extended daily operating windows. The CSHR121U2WR0017G’s 200 HP+ at 1,000 rpm rating covers the large-frame tractors \u2014 typically 225\u2013300 HP \u2014 used in high-volume stover collection contracts. The replacement pto shaft<\/strong> for this application needs to be in dealer stock ahead of the autumn stover harvest window, when lead times for urgent orders become problematic.<\/p>\n<\/div>\n

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Energy Grass & Reed Baling \u2014 Netherlands & Poland<\/h3>\n

Large square balers are the preferred format for miscanthus, reed canary grass, and Phragmites baling for combustion biomass markets across the Netherlands, Poland, and Baltic region. These crops are among the most demanding for baler drivetrains \u2014 fibrous, tangled stems with highly variable feed rates create torque spikes that require both the 6,750 Nm capacity and the overload protection behaviour that the slip clutch or shear pin options on this shaft provide.<\/p>\n<\/div>\n

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Contractor Fleet Service & Dealer Aftermarket<\/h3>\n

Krone BIGpack 1290 and 12130 series machines are widely distributed through agricultural contractor fleets across Europe, North America, and Australasia. Dealers serving these contractors need the CSHR121U2WR0017G in stock with both tractor-side spline options before the baling season to cover urgent replacement demand. A BIGpack breakdown during peak harvest represents a significant daily revenue loss to the contractor \u2014 fast parts availability is the dealer service capability that builds and retains contractor loyalty.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Regional Regulatory Requirements for Large Square Baler PTO Shafts<\/h2>\n

A square baler pto shaft\u00a0applications in the 200 HP+ class is subject to agricultural machinery safety regulations across all major markets. The following summarises the key compliance frameworks relevant to BIGpack PTO shaft procurement and operation globally.<\/p>\n

European Union<\/h3>\n

EN 12965 specifies PTO shaft guard geometry, material, retention chain requirements, and test procedures for the EU market. The EU Machinery Directive 2006\/42\/EC (transitioning to EU Machinery Regulation (EU) 2023\/1230 from January 2027) requires CE-marked PTO shaft guards meeting EN 12965 as part of the implement’s technical file. EN ISO 500-1 specifies the 1 3\/4″ PTO stub dimensions and spline profiles used across EU member state tractors. Large square baler PTO shafts are a specific focus of farm safety enforcement by national agricultural labour inspectorates across Germany, France, the Netherlands, and Poland \u2014 markets where the BIGpack is heavily deployed.<\/p>\n

United Kingdom<\/h3>\n

PUWER 1998 (Provision and Use of Work Equipment Regulations) requires all PTO shafts used in UK workplaces to be adequately guarded. The Health and Safety Executive (HSE) enforces compliance through farm workplace inspections. BS EN 12965 remains the applicable technical standard post-Brexit. UKCA marking is required for PTO shafts placed on the GB market. The HSE specifically lists PTO entanglement as one of the three leading causes of fatal agricultural accidents in the UK, driving active enforcement in farm inspection programmes.<\/p>\n

United States & Canada<\/h3>\n

ASABE Standard S203 specifies PTO shaft dimensions, speed class requirements, and guard standards for North American agricultural equipment. OSHA 29 CFR Part 1928 Subpart C mandates PTO shaft guarding for all agricultural equipment used by employees. State farm safety programmes \u2014 particularly active in Iowa, Illinois, Indiana, and Kansas where BIGpack usage is concentrated \u2014 enforce PTO guard compliance through farm safety audit programmes funded through state agricultural extension services.<\/p>\n

Australia & New Zealand<\/h3>\n

Safe Work Australia’s Code of Practice for Managing Risks of Plant in the Workplace and Australian Standard AS 1762 cover PTO shaft requirements. State SafeWork bodies actively enforce PTO guard compliance in agricultural workplaces across all states. New Zealand’s WorkSafe NZ enforces equivalent requirements under the Health and Safety at Work Act 2015.<\/p>\n

South Korea & Japan<\/h3>\n

KOSHA (Korea Occupational Safety and Health Agency) and the Rural Development Administration (RDA) set PTO shaft safety standards for South Korean agricultural operations. JIS D 4401 and JIS B 9700 govern PTO shaft specifications and machinery safety in Japan.<\/p>\n<\/div>\n

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Compatible Products \u2014 Complete BIGpack Drivetrain Supply<\/h2>\n

A Square Baler PTO Shaft<\/strong> performs best as part of a complete, matched drivetrain. Sourcing the PTO shaft, the baler gearbox components, and replacement universal joints from a single supplier eliminates specification mismatches and simplifies warranty and service support across the full BIGpack driveline.<\/p>\n

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Agricultural Gearbox<\/h3>\n

The CSHR121U2WR0017G drives the Krone BIGpack input gearbox \u2014 and when the gearbox input bearings or shaft seals require replacement concurrently with a PTO shaft service, sourcing both from the same supplier streamlines the repair. Our Agricultural Gearbox<\/a> range covers the torque classes and PTO input specifications used across large square baler drivetrains, with ISO 9001:2015 quality documentation available for both components.<\/p>\n

\"Agricultural<\/div>\n<\/div>\n
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Universal Joint<\/h3>\n

The baler-side universal joint<\/a> in the CSHR121U2WR0017G assembly is the component most likely to require replacement before the rest of the shaft assembly reaches end of service life. A correctly dimensioned replacement u joint for pto shaft<\/strong> matched to the baler-side cross-journal specification allows worn cross-journals to be replaced in the field or workshop without scrapping the complete shaft \u2014 an important cost and lead-time advantage during harvest-season breakdowns.<\/p>\n

\"Universal<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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About Our Manufacturing Capability<\/h2>\n

With more than ten years of dedicated engineering in mechanical power transmission, our production facility specialises in agricultural and industrial driveline components across the full torque spectrum \u2014 from compact tractor implements to high-power large square baler and mulcher applications. Our product range spans agricultural gearboxes, worm gear reducers, planetary gear drives, PTO drive shafts, hydraulic cylinders, precision gear sets, chain drives, and electric motors, all manufactured under an ISO 9001:2015 quality management system that governs every production stage from material receipt through final inspection.<\/p>\n

Housing and structural materials are selected from ductile iron, grey cast iron, cast steel, precision investment cast steel, and cast aluminium based on the load, weight, and thermal requirements of each specific application. For buyers requiring custom pto driveshaft assembly<\/strong> solutions \u2014 modified lengths, alternative spline configurations, integrated overload clutch or shear bolt protection, or private-label marking for OEM supply programmes \u2014 our engineering team can develop and produce custom assemblies using the same production equipment and documented quality procedures as our standard catalogue items.\u00a0 As a specialist pto driveshafts manufacturer<\/strong> with the capacity to serve both dealer aftermarket stock requirements and OEM production programmes, we offer a consistent quality and lead-time performance across all supply channels.<\/p>\n

Workshop<\/h3>\n
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Frequently Asked Questions<\/h2>\n
\nQ1. How do I confirm whether the CSHR121U2WR0017G square baler pto shaft is the correct fit for a Krone BIGpack 1290 XC running a contract wheat straw baling operation in Germany or France?<\/summary>\n

Confirming compatibility for the Krone BIGpack 1290 XC requires verifying three parameters: the tractor’s PTO stub specification (1 3\/4″ diameter, Z=20 or Z=6 spline count \u2014 check the tractor operator manual or measure the stub directly), the tractor-to-baler working length (compare against the 1,219 mm to 54″ range of the CSHR121U2WR0017G), and the baler’s input shaft spline specification (1 3\/4″ Z=20 for most BIGpack models in the 1290 series \u2014 confirm in the Krone BIGpack operator manual). If all three match, the CSHR121U2WR0017G is the correct assembly.<\/p>\n<\/details>\n

\nQ2. What maintenance schedule should I follow for a Krone BIGpack 12130 XC square baler PTO shaft during a high-output hay baling season in Australia or New Zealand?<\/summary>\n

For a BIGpack 12130 XC pto shaft baler<\/strong> assembly running high-output hay baling in Australian or New Zealand conditions: re-grease the baler-side cross-joint bearing cups and the CV joint grease nipple every 8\u201310 operating hours during peak season \u2014 this interval is shorter than standard recommendations because high ambient temperatures and crop dust accelerate lubricant degradation. Lubricate the telescoping tube grease nipple every 25 hours.<\/p>\n<\/details>\n

\nQ3. Which version of the Krone BIGpack 1290 PTO shaft should a contractor choose \u2014 standard tube or splined tube \u2014 when baling high-density energy grass in the Netherlands or Belgium?<\/summary>\n

For energy grass baling (miscanthus, reed canary grass) in the Netherlands or Belgium, the splined tube version of this Square Baler PTO Shaft<\/strong> is the recommended choice. Energy grass creates highly variable torque demands as the baler processes dense versus lighter zones of the crop, generating frequent telescoping action as the shaft accommodates the tractor’s ground-following movement across the crop. The 45 mm x 16 spline interface in the splined version provides a contact area approximately 40\u201360% greater than a standard profile-bore design at the same outer diameter, which directly reduces local surface pressure at the sliding interface and slows wear accumulation.<\/p>\n<\/details>\n

\nQ4. Where can a Krone dealer or agricultural machinery distributor in Iowa or Kansas source a reliable square baler pto shaft replacement for BIGpack 1290 and 12130 models with short lead times during corn stover harvest?<\/summary>\n

For Krone dealers and distributors serving BIGpack fleets in Iowa and Kansas during autumn corn stover harvest, the key to rapid square baler pto shaft replacement<\/strong> availability is pre-season stocking before harvest begins \u2014 ideally by late August when stover harvest timing becomes predictable. The CSHR121U2WR0017G covers the full BIGpack 1290 and 12130 series in both Z=20 and Z=6 tractor-side spline configurations. Stocking both spline options alongside matched universal joint components for baler-side cross-journal replacement gives the dealer a comprehensive service response capability.<\/p>\n<\/details>\n

\nQ5. When should a large square baler contractor in South Africa or Argentina consider replacing the PTO shaft on a Krone BIGpack before starting the hay season rather than waiting for a field failure?<\/summary>\n

The decision to replace a BIGpack square baler pto shaft<\/strong> proactively rather than reactively hinges on reading the early wear indicators correctly \u2014 and doing so before the South African or Argentine hay season begins rather than mid-season when replacement parts availability and lead times are most constrained. Replace proactively if any of the following are present at pre-season inspection: detectable play (more than 3\u20134 degrees of free rotational movement) at the baler-side cross-joint when rotated by hand; roughness or clicking at the CV joint when moved through its angular range; a tube sliding interface that feels loose or has visible scoring on the profile faces; guard end bearings that are cracked, worn through, or no longer rotate freely relative to the shaft; or any chain that is cracked, kinked, or missing its anchor attachment.<\/p>\n<\/details>\n<\/div>\n

\n

Ready to Order the EP-PTO Shaft for Krone BIGpack 1290 \/ 1290HDP \/ 1290XC \/ 12130XC?<\/h2>\n

Our technical team provides assembly part number confirmation, cross-reference verification, standard and splined tube option guidance, and full ISO 9001:2015 production documentation. We serve dealers and distributors across the EU, UK, North America, Australia, New Zealand, South Korea, South Africa, Argentina, and beyond.<\/p>\n

All PTO Driveshaft Products<\/a><\/p>\n<\/div>\n<\/div>\n

Editor: PXY<\/p>","protected":false},"excerpt":{"rendered":"

The EP-Square Baler PTO Shaft (Part No. CSHR121U2WR0017G) is an engineering-grade driveline assembly engineered for Krone BIGpack high-density balers, including models 1290, 1290 HDP, 1290 XC, and 12130 XC. Its key feature is a CAT 7\/8 SFT SH Series Constant Velocity (CV) joint on the tractor side, which ensures smooth power transmission at operating angles up to 75\u00b0. Rated for over 200 HP at 1,000 rpm, the shaft handles a maximum torque of 6,750 Nm, making it suitable for demanding baling applications. It is available in both standard and splined tube versions and offers tractor-side spline options of 1 3\/4″ Z=20 and Z=6 for broad compatibility.<\/p>","protected":false},"featured_media":266,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[23],"product_tag":[],"class_list":["post-264","product","type-product","status-publish","has-post-thumbnail","product_cat-pto-shaft-for-square-balers","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/product\/264","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/media\/266"}],"wp:attachment":[{"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/media?parent=264"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/product_brand?post=264"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/product_cat?post=264"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/tr\/wp-json\/wp\/v2\/product_tag?post=264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}