{"id":3301,"date":"2026-06-22T06:32:22","date_gmt":"2026-06-22T06:32:22","guid":{"rendered":"https:\/\/www.pto-drive-shafts.com\/?post_type=product&p=3301"},"modified":"2026-06-22T09:29:50","modified_gmt":"2026-06-22T09:29:50","slug":"hexagonal-tube","status":"publish","type":"product","link":"https:\/\/www.pto-drive-shafts.com\/kk\/%d3%a9%d0%bd%d1%96%d0%bc\/hexagonal-tube\/","title":{"rendered":"Hexagonal Tube"},"content":{"rendered":"
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Agricultural & Industrial Power Transmission | United Kingdom<\/p>\n

Hexagonal Tube for PTO Drive Shafts<\/h2>\n

Heavy-duty hexagonal profiled tubes built for telescoping PTO shaft assemblies. Trusted by UK farm operators, OEM machinery builders, and industrial equipment manufacturers who demand consistent torque transfer, long service life, and precision dimensional tolerance across every batch.<\/p>\n

\ud83d\udce7 Get a Quote<\/a>
\nView Specifications<\/a><\/div>\n<\/div>\n<\/div>\n

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18+<\/div>\n
Years Experience<\/div>\n<\/div>\n
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ISO<\/div>\n
Certified Production<\/div>\n<\/div>\n
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50+<\/div>\n
Countries Served<\/div>\n<\/div>\n
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OEM Available<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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What Is a Hexagonal Tube in a PTO Drive Shaft System?<\/h2>\n

\"HexagonalA hexagonal tube \u2014 sometimes referred to as a hex telescoping tube \u2014 is the sliding inner or outer profile component at the heart of every telescoping PTO drive shaft assembly. Unlike round or square profiles, the six-sided geometry of a hexagonal tube delivers a highly efficient mechanical key effect: torque is transmitted uniformly across all six flat contact faces without requiring any additional splines, pins, or locking hardware. This design has remained the industry standard in agricultural machinery across the United Kingdom and Europe precisely because it balances simplicity, strength, and ease of field maintenance.<\/p>\n

In practical terms, the hexagonal tube allows the PTO shaft to extend and retract as the tractor and implement change relative distance during field operation \u2014 whether during headland turns, undulating ground, or attachment changes. Without a properly toleranced hex tube sliding cleanly inside its outer profile, that telescoping motion binds, generating heat, friction loss, and premature yoke wear. Every hexagonal tube we supply is cold-drawn or precision-machined from high-grade steel, then verified for straightness, concentricity, and dimensional accuracy before despatch.<\/p>\n

We supply hexagonal tubes as standalone replacement components and as matched inner\/outer tube pairs within complete PTO drive shaft assemblies. UK agricultural dealers, farm machinery workshops, and OEM manufacturers across England, Scotland, Wales, and Northern Ireland use our hex tube components to service existing shafts or build new assemblies to their own specifications.<\/p>\n<\/div>\n

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Why UK Buyers Choose Our Hexagonal Tubes<\/h2>\n

Performance advantages that matter on the farm and in the workshop<\/p>\n

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Uniform Torque Distribution<\/h3>\n

Six flat drive faces distribute torsional load evenly across the entire tube circumference. This eliminates stress concentration points that shorten shaft life in agricultural machinery operating under variable, high-shock load conditions typical of UK farming seasons.<\/p>\n<\/div>\n

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Tight Dimensional Tolerances<\/h3>\n

Cold-drawing and precision machining processes hold across-flat dimensions within tight tolerance bands, ensuring smooth, consistent sliding action without excessive free play or binding. This precision matters especially in telescoping shafts on mowers, spreaders, and ploughs used across British arable and livestock farms.<\/p>\n<\/div>\n

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High-Grade Steel Construction<\/h3>\n

Tubes are produced from medium-carbon or alloy steel grades selected for their balance of strength, toughness, and machinability. Material certificates are available on request for OEM applications where material traceability is a procurement requirement.<\/p>\n<\/div>\n

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Drop-In Replacement Compatibility<\/h3>\n

Our hex tube dimensions are cross-referenced against major European and UK tractor and implement standards, so replacement components fit existing shaft assemblies without requiring custom modifications or remanufacturing of yoke ends and safety guards.<\/p>\n<\/div>\n

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Surface Treatment Options<\/h3>\n

Bare steel, phosphate-coated, or zinc-plated surface finishes are available depending on operating environment requirements. Phosphating is recommended for assemblies that will be greased and enclosed within a safety guard, while zinc plating suits exposed components in wet UK field conditions.<\/p>\n<\/div>\n

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Custom Length Cutting<\/h3>\n

We supply hexagonal tubes in standard lengths or cut-to-order dimensions. Machinery builders and dealers who require specific lengths to suit implement attachment points or tractor PTO height configurations can specify exact dimensions at the quotation stage.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Technical Specifications<\/h2>\n

Full dimensional and material data for our Hexagonal Tube range<\/p>\n

\"Hexagonal<\/p>\n<\/div>\n

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

Understanding why hexagonal geometry and correct material selection define shaft longevity<\/p>\n

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The Hexagonal Drive Principle<\/h3>\n

Torque transfer through a hexagonal profile relies on the geometry itself rather than friction or fasteners. Each of the six faces bears approximately one-sixth of the total torque load, and because the contact is across a flat surface rather than a point or line, Hertzian contact stress is minimised. The cold-drawing process used to produce hex tubes also work-hardens the outer surface during forming, providing a harder wear face on the bearing surfaces without the cost and energy of secondary heat treatment for lighter-duty applications.<\/p>\n<\/div>\n

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Steel Grade Selection<\/h3>\n

Smaller tube profiles (22\u201332 mm AF) are typically produced from C45 medium-carbon or S355 structural steel. These grades offer good tensile strength and adequate toughness for general agricultural applications such as rotary mowers, grass cutters, and small slurry spreaders common across UK dairy and mixed farms. Larger profiles (38 mm AF and above) step up to 42CrMo4 alloy steel, which delivers substantially higher yield strength and toughness, making it the material of choice for heavy tractor linkage applications, large arable seeders, hedge cutters, and high-torque industrial power take-off systems.<\/p>\n<\/div>\n

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Typical Application Scenarios<\/h3>\n

Hexagonal PTO drive shaft tubes are the standard telescoping element across a wide range of UK agricultural and industrial equipment: rotary tillage machines, flail mowers, stubble cultivators, manure spreaders, bale wrappers, irrigation pump drives, grain augers, hedge trimmers, and seed drills. In industrial settings, the same profile appears in stationary machinery drives, portable pump systems, and specialist construction equipment where the PTO output of a power unit must be transmitted to a working tool at variable distances.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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

Hexagonal tubes are available as part of our four core PTO shaft series \u2014 each engineered for a specific torque class and application duty<\/p>\n

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LIGHT DUTY<\/div>\n

PTO Drive Shaft G Series<\/a><\/h3>\n

Entry-level general-purpose series with 22\u201327 mm AF hex tubes. Suitable for small tractors, garden machinery, and light implements operating at standard 540 RPM PTO speeds.<\/p>\n

View G Series \u2192<\/a><\/p>\n<\/div>\n

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MEDIUM DUTY<\/div>\n

PTO Drive Shaft S Series<\/a><\/h3>\n

Mid-range series with 27\u201332 mm AF hex profiles. The most widely used configuration across UK mixed farms for rotary mowers, spreaders, and tillage attachments.<\/p>\n

View S Series \u2192<\/a><\/p>\n<\/div>\n

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HEAVY DUTY<\/div>\n

PTO Drive Shaft L Series<\/a><\/h3>\n

Reinforced series with 38\u201344 mm AF alloy steel hex tubes. Designed for large arable operations, hedge cutters, and high-horsepower tractor applications across East Anglia and the Midlands.<\/p>\n

View L Series \u2192<\/a><\/p>\n<\/div>\n

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ULTRA HEAVY DUTY<\/div>\n

PTO Drive Shaft T Series<\/a><\/h3>\n

Top-rated series with 50\u201358 mm AF heavy-wall hex tubes in 42CrMo4 alloy steel. Handles peak torques above 3,000 Nm for the most demanding industrial and large-scale agricultural drives.<\/p>\n

View T Series \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Customer Success Stories<\/h2>\n

Real-world results from buyers who rely on our hexagonal tube components<\/p>\n

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CASE STUDY \u2014 UK AGRICULTURAL MACHINERY OEM<\/div>\n

Lincolnshire Implement Manufacturer Reduces Component Rejection Rate by 62%<\/h3>\n

A medium-sized agricultural implement manufacturer based in Lincolnshire \u2014 producing a range of trailed cultivators, disc harrows, and combination seeders for the UK and export markets \u2014 was experiencing high in-warranty shaft failure rates attributed to inconsistent hex tube dimensional quality from their previous supplier. The across-flat variance between batches was causing premature wear in the outer tube bore, leading to shaft play and customer complaints particularly during the autumn drilling season when machines operate continuously under high load.<\/p>\n

After switching their hex tube supply to Ever Power and specifying 38 mm AF 42CrMo4 tubes with tighter manufacturing tolerances and phosphate surface treatment, their internal component rejection rate fell from 8.4% to 3.2% within two production runs. Field warranty claims related to PTO shaft wear dropped by 62% over the following 12 months, producing a measurable saving in after-sales cost and a stronger reputation among their dealer network across the East Midlands and Yorkshire.<\/p>\n<\/div>\n

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Results at a Glance<\/h4>\n
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62%<\/div>\n
reduction in PTO shaft warranty claims<\/div>\n<\/div>\n
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3.2%<\/div>\n
component rejection rate (down from 8.4%)<\/div>\n<\/div>\n
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12 mo<\/div>\n
to measurable cost saving in after-sales<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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“We’ve been ordering hexagonal tubes in the 27 mm and 32 mm sizes for about three years now. What keeps us coming back is the consistency \u2014 every batch slides correctly in our outer profiles without reworking. That reliability matters when you’re building 200 shafts a week.”<\/p>\n

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J<\/div>\n
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James W.<\/div>\n
Procurement Manager \u2014 Agricultural Machinery Distributor, West Yorkshire<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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“Our farm workshop services PTO shafts for about 15 farms in Herefordshire. Since we switched to Ever Power hex tubes as our standard replacement component, we’ve had virtually no call-backs. The 38 mm 42CrMo4 tubes in particular have been outstanding on the big Claas and New Holland setups.”<\/p>\n

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Rob T.<\/div>\n
Owner \u2014 Agricultural Engineering Workshop, Herefordshire<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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“We manufacture portable irrigation pump sets for the UK rental market and needed a reliable source for 44 mm and 50 mm hex tubes at sensible volumes. Ever Power delivered on lead time, gave us a competitive price for the year’s volumes, and the tubes matched our engineering drawings exactly.”<\/p>\n

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S<\/div>\n
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Sarah M.<\/div>\n
Technical Director \u2014 Pump Equipment Manufacturer, East Anglia<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Manufacturing Capability & Custom Production<\/h2>\n

Built to your specification \u2014 not just off a shelf<\/p>\n

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Our manufacturing plant operates a full range of cold-drawing benches, CNC tube cutting lines, surface treatment tanks, and dimensional inspection equipment. This vertical integration means we control every stage of hex tube production \u2014 from steel billet selection through to final inspection and despatch \u2014 rather than assembling from multiple sub-suppliers. The result is a level of batch-to-batch consistency that matters to OEM customers who set their tolerance stack-ups based on what a component should measure, not what it might measure.<\/p>\n

Our product customisation service is a genuine capability, not a brochure promise. UK and international OEM customers regularly place orders for hex tubes with non-standard across-flat dimensions, unusual wall thicknesses, specific alloy grades with third-party material certificates, custom cut lengths, special surface treatments, and matched inner\/outer tube pairs with a defined sliding clearance. We work from customer drawings, sample components, or functional specifications, and can produce tooled prototypes ahead of production runs for engineering sign-off before commitment to volume.<\/p>\n

Minimum order quantities for custom profiles are discussed case by case \u2014 many UK machinery builders find that modest MOQs are achievable even for bespoke dimensions. Contact our technical sales team to discuss your requirements, request a drawing review, or get a quote for a specific application.<\/p>\n

Get a Custom Quote \u2192<\/a><\/div>\n<\/div>\n
\"Ever
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\u2713 Custom AF Dimensions<\/div>\n
\u2713 Alloy Steel with MTC<\/div>\n
\u2713 Cut-to-Length Service<\/div>\n
\u2713 Matched Inner\/Outer Pairs<\/div>\n
\u2713 OEM Private Label<\/div>\n
\u2713 Prototype & Pilot Runs<\/div>\n<\/div>\n<\/div>\n
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Complete PTO Drive Shaft Range<\/h2>\n

The star yoke is just one element of a full PTO drive shaft<\/a> assembly. Our four main shaft series are engineered as complete systems, with star yokes, spider kits, guard tubes, and coupling elements matched for rated torque capacity. Whether you’re a machinery dealer sourcing replacement components or an OEM engineer specifying full driveline assemblies, these series give you a structured choice by duty level and application type.<\/p>\n

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PTO Drive Shaft G Series<\/a><\/h3>\n

General-purpose series designed for light to medium agricultural implements. Ideal for mowers, spreaders, and seeders where weight economy and cost-effectiveness are the primary considerations.<\/p>\n<\/div>\n

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PTO Drive Shaft S Series<\/a><\/h3>\n

The S Series introduces reinforced yoke arms and upgraded surface treatment, making it the preferred choice for medium-duty implements including balers and rotary tillers operating in high-hour UK farm environments.<\/p>\n<\/div>\n

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PTO Drive Shaft L Series<\/a><\/h3>\n

Extended-length configurations optimised for applications where greater operating angles or longer between-centre distances are required \u2014 particularly suited to front-mounted PTO implements and compact utility tractors.<\/p>\n<\/div>\n

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PTO Drive Shaft T Series<\/a><\/h3>\n

The T Series is our heavy-duty flagship, engineered for high-torque applications such as wood chippers, stump grinders, and large rotary cutters. Forged yoke arms and wide-series bearing configurations make this the right choice where failure consequences are highest.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Questions from UK buyers \u2014 answered by our engineering team<\/p>\n

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What is the typical price range for a hexagonal tube<\/a> for a PTO drive shaft when buying from a UK agricultural parts supplier?<\/h3>\n
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Pricing for hexagonal PTO shaft tubes in the UK varies considerably depending on across-flat size, wall thickness, steel grade, length, and order volume. Standard C45 tubes in the 22\u201327 mm range sourced at modest agricultural dealer quantities carry a lower per-unit cost than alloy 42CrMo4 tubes in the 44\u201358 mm range at small workshop volumes. The most practical step is to request a quote directly with your required dimensions and approximate annual volume, as volume-tiered pricing applies from relatively modest quantities. We provide FOB and CIF pricing to UK ports. Contact sales@pto-drive-shafts.com<\/a> for a current price list.<\/div>\n<\/div>\n<\/div>\n
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How do I know which hexagonal tube across-flat size is correct for replacing the PTO shaft on my UK tractor or farm implement?<\/h3>\n
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The easiest method is to measure the across-flat dimension of the existing tube using a vernier calliper \u2014 measure between two parallel flat faces, not corner to corner. Alternatively, check the shaft assembly’s original part number against the tractor or implement manufacturer’s parts catalogue; most major UK brands (Massey Ferguson, John Deere, New Holland, Fendt, Claas) cross-reference to standard European hex tube series. If you have a worn or damaged tube with no readable markings, our technical team can advise based on the application \u2014 share the tractor model, PTO power rating, and implement type and we can recommend the appropriate series and AF size.<\/div>\n<\/div>\n<\/div>\n
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Where can a British arable farming business find a reliable supplier of PTO drive shaft hexagonal tubes in the correct alloy grade for high-torque applications?<\/h3>\n
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Ever Power supplies hexagonal PTO shaft tubes directly to UK arable machinery businesses and implement manufacturers. For high-torque arable applications \u2014 seeder combinations, large cultivator trains, or heavy hedge-cutting equipment \u2014 the 42CrMo4 alloy steel tubes in our L and T Series are specifically the right specification. We supply to UK buyers with standard delivery via established freight forwarders and can arrange consolidated shipments for buyers who also source yokes, cross kits, or safety guard components. Enquiries from East Anglian, Midlands, and Northern England arable operations are welcome \u2014 email sales@pto-drive-shafts.com<\/a>.<\/div>\n<\/div>\n<\/div>\n
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What is the difference between a hexagonal tube and a lemon-profile tube in PTO drive shaft assemblies, and which one should I be ordering?<\/h3>\n
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Both hex and lemon-profile (also called star or lobular profiles) tubes serve the same telescoping torque-transmission function within a PTO shaft assembly; the difference is the cross-sectional geometry. Hexagonal tubes have six flat faces and are the dominant standard across European agricultural equipment in the light-to-heavy duty range. Lemon profiles appear in some manufacturer-specific designs, typically in the lighter duty spectrum. The correct profile for your application is determined entirely by the outer tube bore your inner tube slides into \u2014 you cannot interchange hex and lemon profiles in the same assembly. If you are unsure which profile your assembly uses, send us photographs of the tube ends and we will confirm.<\/div>\n<\/div>\n<\/div>\n
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How long does delivery typically take when ordering hexagonal PTO shaft tubes from an overseas manufacturer to a UK machinery dealer or workshop?<\/h3>\n
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Standard lead times for in-stock hex tube profiles to UK delivery addresses are typically 3\u20135 weeks by sea freight from our production facility, with air freight options available for urgent replacement requirements at a premium. Custom profiles or non-standard dimensions require additional production lead time, which is confirmed at the quotation stage. UK buyers who order on a scheduled basis \u2014 for instance, placing orders ahead of the spring and autumn service seasons \u2014 can negotiate call-off arrangements with fixed pricing that help manage both lead times and budget. Contact us at the start of your planning cycle for best results.<\/div>\n<\/div>\n<\/div>\n
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Can I get a custom hexagonal tube cut to a specific length for a non-standard PTO drive shaft build in my UK farm workshop?<\/h3>\n
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Yes. Custom cut lengths are a standard service for UK workshop and OEM customers. Provide your required finished length, the profile size, steel grade, and desired surface treatment, and we quote based on your volume requirement. End finishing \u2014 such as chamfering or deburring \u2014 can also be specified. This is particularly useful for farm machinery workshops that fabricate or rebuild complete PTO shaft assemblies rather than replacing them with off-the-shelf units, or for OEM customers who build to fixed tractor-implement attachment geometry rather than relying on telescoping range to accommodate variation.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Ready to Source Hexagonal Tubes for Your UK Business?<\/h2>\n

Send us your dimensions, required steel grade, annual volume estimate, and delivery location. Our technical sales team responds to UK enquiries within one working day.<\/p>\n

\ud83d\udce7 Get a Quote Now<\/a>
\nTalk to Our Engineers<\/a><\/div>\n

sales@pto-drive-shafts.com \u00a0|\u00a0 B2B Enquiries Welcome \u00a0|\u00a0 Custom Dimensions Available | edit by gzl<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Precision hexagonal tubes for PTO drive shafts \u2014 C45 & 42CrMo4 steel, 22\u201358mm AF, UK agricultural & OEM supply.<\/p>","protected":false},"featured_media":3302,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1798],"product_tag":[],"class_list":["post-3301","product","type-product","status-publish","has-post-thumbnail","product_cat-cube","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/product\/3301","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/comments?post=3301"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/media\/3302"}],"wp:attachment":[{"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/media?parent=3301"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/product_brand?post=3301"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/product_cat?post=3301"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.pto-drive-shafts.com\/kk\/wp-json\/wp\/v2\/product_tag?post=3301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}