{"id":3268,"date":"2026-06-18T01:43:44","date_gmt":"2026-06-18T01:43:44","guid":{"rendered":"https:\/\/www.pto-drive-shafts.com\/?post_type=product&p=3268"},"modified":"2026-06-18T02:14:51","modified_gmt":"2026-06-18T02:14:51","slug":"wa-series-wide-angle-universal-joint-cross-kit","status":"publish","type":"product","link":"https:\/\/www.pto-drive-shafts.com\/da\/vare\/wa-series-wide-angle-universal-joint-cross-kit\/","title":{"rendered":"WA Series Wide-Angle Universal Joint Cross Kit"},"content":{"rendered":"

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Agricultural & Industrial Drivetrain Components<\/div>\n

WA Series Wide-Angle Universal Joint Cross Kit<\/h2>\n

Engineered for extreme angular deflection up to 80\u00b0 \u2014 the benchmark wide-angle universal joint cross kit for UK agricultural and industrial PTO driveline applications.<\/p>\n

Get a Quote<\/a>
\n\u2709 sales@pto-drive-shafts.com \u00a0|\u00a0 Fast UK response<\/span><\/div>\n<\/div>\n

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Introducing the WA Series Universal Joint Cross Kit<\/h2>\n

\"WAThe WA Series Wide-Angle Universal Joint Cross Kit represents a purpose-built solution for driveline configurations that demand articulation well beyond the capabilities of a standard agricultural cross kit. Where conventional universal joint cross kits begin to deteriorate rapidly past 30\u201335\u00b0 of joint deflection, the WA Series maintains controlled, low-vibration torque transmission at sustained angles reaching 80\u00b0 \u2014 a range that is essential for front-mounted PTO implements, steep-field operations, and specialist machinery used across the varied terrain of England, Scotland, Wales, and Northern Ireland. British farmers operating in Devon, Cumbria, Snowdonia, and the Scottish uplands encounter operating angles that simply destroy standard cross kits within a season, and the WA Series was developed precisely to address that reality. The kit combines a hot-drop forged alloy steel cross body, precision-needle-roller bearing cups, and field-maintainable NBR sealed assemblies into a unit that agricultural machinery dealers, OEM assemblers, and workshop engineers across the UK specify with confidence.<\/p>\n

Known variously as a spider kit, cross journal kit, U-joint repair kit, or universal joint cross kit depending on the workshop, the WA Series covers seven distinct size variants from the compact 2WA.01 through to the heavy-duty 42WA.01, with outer bearing cup diameters ranging from 23.8 mm to 42 mm and assembly lengths extending to 124 mm on the largest variant. This size range addresses the majority of UK tractor PTO shaft configurations encountered in both agricultural and light industrial machinery, making the WA Series the practical single-source option for dealers stocking repair cross kits.<\/p>\n

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\u2713 Up to 80\u00b0 articulation<\/div>\n
\u2713 7 size variants<\/div>\n
\u2713 Forged 20CrMnTi steel<\/div>\n
\u2713 NBR sealed needle bearings<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Technical Specifications<\/h2>\n

Complete dimensional reference data for all WA Series variants. Measurements are in millimetres. All values reflect standard production tolerances.<\/p>\n

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\"WA<\/p>\n

WA Series \u2014 Engineering Reference Drawing. Dimensions A through F as defined in the table below.<\/p>\n<\/div>\n

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Serie<\/th>\nA (mm)<\/th>\nB (mm)<\/th>\nC (mm)<\/th>\nD (mm)<\/th>\nE (mm)<\/th>\nF (mm)<\/th>\n<\/tr>\n<\/thead>\n
2WA.01<\/td>\n23.8<\/td>\n61.3<\/td>\n22<\/td>\n76<\/td>\n1.2<\/td>\n1.2<\/td>\n<\/tr>\n
4WA.01<\/td>\n27<\/td>\n74.6<\/td>\n23.8<\/td>\n91<\/td>\n1.2<\/td>\n1.2<\/td>\n<\/tr>\n
6WA.01<\/td>\n30.2<\/td>\n92<\/td>\n27<\/td>\n100<\/td>\n1.5<\/td>\n1.2<\/td>\n<\/tr>\n
8WA.01<\/td>\n35<\/td>\n106.5<\/td>\n30.2<\/td>\n106<\/td>\n1.5<\/td>\n1.5<\/td>\n<\/tr>\n
32WA.01<\/td>\n32<\/td>\n76<\/td>\n27<\/td>\n94<\/td>\n1.5<\/td>\n1.2<\/td>\n<\/tr>\n
36WA.01<\/td>\n36<\/td>\n89<\/td>\n32<\/td>\n106<\/td>\n1.5<\/td>\n1.5<\/td>\n<\/tr>\n
42WA.01<\/td>\n42<\/td>\n104.5<\/td>\n36<\/td>\n124<\/td>\n1.75<\/td>\n1.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

A = bearing cup outer diameter; B = bearing cup overall length; C = trunnion pin diameter; D = cross body overall span; E = snap ring groove depth (drive end); F = snap ring groove depth (driven end). All dimensions in mm.<\/p>\n<\/div>\n

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Engineering Principle, Materials & Application Scenarios<\/h2>\n
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Working Principle<\/h3>\n

The WA Series cross kit operates on the Hooke’s joint principle, with the four-armed trunnion body sitting at the intersection of two opposed yoke pairs. Each arm engages a precision needle-roller bearing cup retained by a circlip. As the driving shaft rotates, torque passes through the cross body to the driven shaft at whatever angle the joint is set to \u2014 without interruption. What distinguishes the WA Series is its extended bearing cup geometry and optimised trunnion arm proportions, which allow the pivot plane to articulate to angles that standard cross kits simply cannot sustain. At 80\u00b0 joint angle, bearing cup engagement remains full across the entire needle roller complement, maintaining even load distribution and preventing the localised wear that destroys standard crosses at high deflection. Each bearing cup carries a grease nipple for scheduled field maintenance, allowing re-lubrication without disassembly during peak operating seasons.<\/p>\n<\/div>\n

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Materialesammens\u00e6tning<\/h3>\n

The cross body of every WA Series kit is hot-drop forged from 20CrMnTi alloy steel and subjected to carburising and case-hardening, achieving a surface hardness of 58\u201362 HRC. This process creates a component that is genuinely tough at its core \u2014 able to absorb the shock loading that occurs when a PTO shaft is engaged under high joint angle \u2014 while presenting an extremely hard working surface to the needle rollers, where contact stresses are highest. Bearing cups are precision-turned from seamless steel tube and assembled with a full needle roller complement under controlled conditions, ensuring uniform axial and radial load distribution. Seals are NBR (nitrile butadiene rubber) mouldings, selected for their resistance to agricultural lubricants, soil moisture, silage acid, and the wide temperature cycling experienced in outdoor UK machinery. Circlips are spring steel, heat-treated, and dimensioned to hold bearing cups under the high axial extraction forces generated at maximum articulation angles.<\/p>\n<\/div>\n

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Where It Is Used<\/h3>\n

The WA Series wide-angle universal joint cross kit is the standard replacement and OEM choice for front-PTO drivelines across the British Isles. Front flail mowers, front-mounted rotary tillers, compact bale wrappers, and front loaders with PTO-driven hydraulic pumps are among the most common applications, all of which require sustained wide-angle operation during normal working cycles. Municipal groundskeeping and roadside mowing vehicles operating on UK embankments and verges place identical demands on their PTO shafts, and WA Series kits are regularly specified for these applications from Cornwall to Aberdeenshire. In light industrial machinery \u2014 compact auger drives, portable conveyor drives, and PTO-powered air compressors \u2014 the WA Series provides the same wide-angle flexibility within compact mechanical envelopes. Agricultural parts merchants and machinery dealers throughout England, Scotland, and Wales carry WA Series kits as a standard workshop stock item for this reason.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Key Product Advantages<\/h2>\n
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80\u00b0 Wide-Angle Design<\/h4>\n

Sustains full bearing engagement and controlled torque transfer at deflection angles that cause rapid failure in standard cross kits.<\/p>\n<\/div>\n

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7 Size Variants<\/h4>\n

2WA.01 through 42WA.01 covers the full range of UK tractor PTO shaft configurations from compact utility tractors to high-output farm machinery.<\/p>\n<\/div>\n

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Drop-Forged Alloy Body<\/h4>\n

20CrMnTi steel, carburised and case-hardened to 58\u201362 HRC. Shock-absorbing core with a wear-resistant surface optimised for needle roller contact.<\/p>\n<\/div>\n

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NBR Sealed Bearings<\/h4>\n

Nitrile rubber seals resist soil, silage acid, water ingress, and a wide thermal range \u2014 matched to real UK outdoor working conditions.<\/p>\n<\/div>\n

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Field-Maintainable<\/h4>\n

Grease nipples on every bearing cup allow in-field re-lubrication without disassembly, significantly extending service life in high-duty cycles.<\/p>\n<\/div>\n

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OEM Dimensional Compatibility<\/h4>\n

Cross-references with major European and UK PTO shaft manufacturers, allowing straight shelf-to-shaft fitment in most workshop scenarios.<\/p>\n<\/div>\n<\/div>\n

\"pto-drive-shafts.com<\/p>\n<\/div>\n

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Customer Success Stories<\/h2>\n

Verified performance outcomes from agricultural operators and machinery businesses across the United Kingdom.<\/p>\n

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Case Study<\/div>\n

Herefordshire Arable Contracting | Agricultural Sector | UK<\/span><\/p>\n<\/div>\n

Eliminating In-Season Universal Joint Failures on Front Mower PTO Shafts<\/h3>\n

A family-run agricultural contracting business based near Hereford had been managing persistent in-season failures on the front mower PTO shafts of their three New Holland T6 tractors. The operation involves sustained grass cutting on steeply banked field margins along the Welsh Borders, and the joint angles involved \u2014 routinely above 55\u00b0 during headland turns with the implement raised \u2014 were consuming standard aftermarket cross kits in fewer than 200 operating hours. Bearing seizure and circlip ejection were the most common failure modes, always at inconvenient times during the cutting season. The contracting manager contacted pto-drive-shafts.com in early spring and, after confirming the correct sizes (6WA.01 and 8WA.01), placed an initial order covering all three machines with one spare set. The tractors ran through the full summer and autumn cutting programme \u2014 just over 700 hours per machine \u2014 without a single cross kit replacement. The maintenance cost reduction was estimated at over 60% compared to the previous season, and the manager noted the grease nipple access as a particular practical benefit over previous kits used.<\/p>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Fitted 4WA.01 kits to our front-mounted grass tedder shafts in March. Six months in and there is zero play in any of the joints \u2014 seals are intact, no discolouration, no noise. I have never had this kind of life from an aftermarket cross kit before.”<\/p>\n

\u2014 T. Griffiths, Livestock & Grassland Farmer<\/div>\n
Powys, Wales<\/div>\n<\/div>\n
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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We stock WA Series kits across all seven sizes in our agricultural parts department. They cross-reference cleanly, arrive well-packaged, and customers are coming back to re-order rather than returning them. That says everything about quality at this price level.”<\/p>\n

\u2014 S. Pemberton, Agricultural Machinery Dealer<\/div>\n
East Riding of Yorkshire, England<\/div>\n<\/div>\n
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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Specified 32WA.01 kits for a batch of new municipal mowing vehicles fitted with front PTO drives. The kits dropped in without modification, dimensions matched exactly, and we have had zero warranty returns on joint components across the whole order.”<\/p>\n

\u2014 P. Whitmore, Fleet Engineering Manager<\/div>\n
West Midlands, England<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Manufacturing Facility & Custom Engineering<\/h2>\n
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Production of the WA Series cross kit runs across a vertically integrated manufacturing process that spans hot-drop forging, CNC turning, carburising and case-hardening heat treatment, precision cylindrical grinding, needle roller assembly, and final inspection. Every cross kit is dimensionally verified against calibrated gauge sets before leaving the production floor. The facility operates under ISO 9001 quality management and is subject to regular third-party audit, providing the documented supply chain assurance that UK OEM customers and agricultural equipment manufacturers demand when qualifying a new cross kit supplier.<\/p>\n

Custom cross kit engineering is one of the facility’s core commercial strengths. UK PTO shaft manufacturers, implement OEMs, and specialist machine builders regularly approach us with dimensions that do not align with standard catalogue sizes \u2014 modified trunnion diameters, altered bearing cup lengths, non-standard circlip groove geometry, bespoke surface treatments for particularly aggressive environments, or cross bodies profiled for proprietary yoke designs. Our engineering team works from customer-supplied drawings, 3D models, or physical sample components, and our toolroom is equipped to produce forging dies and CNC turning programmes for custom production batches at unit costs that remain competitive from modest minimum order quantities. Send your specification or sample to us and we will provide a complete quotation including tooling amortisation, production lead time, and unit pricing at your required volume.<\/p>\n

Get a Custom Quote \u2014 sales@pto-drive-shafts.com<\/a><\/div>\n<\/div>\n

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Complete PTO Drive Shaft Range<\/h2>\n

The WA Series universal joint cross kit is used throughout our full agricultural and industrial PTO drive shaft range. Explore the complete series:<\/p>\n

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PTO Drive Shaft G Series<\/a><\/div>\n
General-purpose agricultural PTO shafts for standard implement duty cycles across a wide torque range.<\/div>\n

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PTO Drive Shaft S Series<\/a><\/div>\n
Heavy-duty reinforced shafts with overload clutch options and extended slip-yoke travel for demanding applications.<\/div>\n

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PTO Drive Shaft L Series<\/a><\/div>\n
Long telescopic shafts engineered for maximum axial travel and articulation range in extended-reach applications.<\/div>\n

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PTO Drive Shaft T Series<\/a><\/div>\n
High-torque series for ground engagement implements and high-output tractor PTO configurations.<\/div>\n

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Ofte stillede sp\u00f8rgsm\u00e5l<\/h2>\n

Common questions from UK agricultural engineers, parts buyers, and machinery dealers about the WA Series Wide-Angle Universal Joint Cross Kit.<\/p>\n

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What is the maximum operating angle for the WA Series universal joint cross kit when fitted to a UK front-mounted mower PTO shaft?<\/div>\n
The WA Series is rated for continuous operation at joint angles up to 80\u00b0. This comfortably covers the full articulation range encountered on front-mounted mower PTO drivelines with modern European tractors, including the full-raised transport position. UK operators working on sloped field margins in areas such as the Pennines, Welsh Borders, or South Downs can operate with confidence that the cross kit remains within its safe envelope throughout the working cycle.<\/div>\n<\/div>\n
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How do I find out the price and get a quote for WA Series wide-angle universal joint cross kits as a UK agricultural dealer or workshop?<\/div>\n
Trade pricing for WA Series kits is available on application. UK agricultural dealers, PTO shaft repair workshops, and machinery OEMs are welcome to contact us at sales@pto-drive-shafts.com<\/a> for a current price schedule and volume tier structure. Most standard sizes across all seven variants are held in stock for prompt despatch to UK mainland addresses.<\/div>\n<\/div>\n
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Which WA Series cross kit size should I use to replace the universal joint on my agricultural PTO shaft in England, Scotland, or Wales?<\/div>\n
Size selection is based on measuring dimension A (bearing cup outer diameter) and dimension B (bearing cup assembly length) from the worn cross kit or the original driveline specification. These correspond directly to the values in the specification table above. If you are uncertain of the correct variant, photograph the worn cross kit alongside a ruler and send it to sales@pto-drive-shafts.com<\/a> \u2014 our technical team will confirm the correct replacement same day.<\/div>\n<\/div>\n
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Where is the most reliable supplier of wide-angle universal joint cross kits for agricultural PTO shafts in the United Kingdom, and how quickly can I receive delivery?<\/div>\n
pto-drive-shafts.com holds WA Series wide-angle cross kits in stock across all seven standard sizes for direct supply to UK customers. Confirmed orders are typically despatched within 2\u20133 working days on tracked carriers to all UK mainland addresses. Ireland and export customers are also accommodated. Accounts are available for agricultural dealers and workshops placing regular orders.<\/div>\n<\/div>\n
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How often should the WA Series wide-angle universal joint cross kit bearings be greased on a tractor PTO shaft during intensive UK harvest season work?<\/div>\n
During peak seasonal use \u2014 intensive mowing, baling, or harvesting \u2014 re-lubrication every 8\u201310 operating hours using a lithium-complex EP2 grease is the standard recommendation. In lighter-duty off-season use, intervals of 20\u201325 hours are generally sufficient. The grease nipple on each of the four bearing cups allows direct injection without disassembly. Under-lubrication at high joint angles and high PTO speeds is the single most common factor in premature cross kit failure in UK agricultural applications.<\/div>\n<\/div>\n
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Can I order a custom-dimensioned WA Series universal joint cross kit for an OEM or specialist machinery application in the UK or Europe?<\/div>\n
Yes. Our engineering team regularly develops custom cross kit variants for UK and European OEMs, covering modified bearing cup diameters, non-standard trunnion pin dimensions, alternative circlip groove profiles, and specialist surface coatings. Custom tooling lead times are typically 4\u20136 weeks, with production scheduling dependent on order volume. Send drawings or a sample to sales@pto-drive-shafts.com<\/a> to start the process.<\/div>\n<\/div>\n
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What is the practical difference between a standard universal joint cross kit and a wide-angle cross kit when used on front-PTO agricultural machinery in the UK?<\/div>\n
Standard agricultural cross kits are designed for joint angles typically up to 25\u201335\u00b0. At higher angles, needle roller contact becomes uneven, lubrication distribution deteriorates, and trunnion journal wear accelerates \u2014 usually resulting in noticeable vibration followed by bearing seizure or circlip failure within a few hundred hours. The WA Series wide-angle cross kit uses extended bearing cup proportions and an optimised cross body geometry that maintains uniform needle roller engagement at angles up to 80\u00b0. For any UK agricultural machinery application where the PTO shaft regularly exceeds 40\u00b0 of deflection \u2014 including virtually all front-mounted implements \u2014 the WA Series is the technically correct choice.<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Ready to source WA Series Wide-Angle Universal Joint Cross Kits for your operation or workshop?<\/p>\n

Get a Quote \u2014 sales@pto-drive-shafts.com<\/a><\/p>\n<\/div>\n

redigeret af gzl<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

WA Series Wide-Angle Universal Joint Cross Kit \u2014 forged 20CrMnTi steel, NBR sealed needle bearings, 80\u00b0 max angle, 7 sizes (2WA.01\u201342WA.01). UK PTO supply.<\/p>","protected":false},"featured_media":3270,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1797],"product_tag":[],"class_list":["post-3268","product","type-product","status-publish","has-post-thumbnail","product_cat-cross-kit","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/product\/3268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/comments?post=3268"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/media\/3270"}],"wp:attachment":[{"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/media?parent=3268"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/product_brand?post=3268"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/product_cat?post=3268"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/da\/wp-json\/wp\/v2\/product_tag?post=3268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}