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Splined Yoke 11-Push Pin

Splined Yoke 11 Push Pin — forged alloy steel, 11-spline involute bore, spring-loaded push-pin collar for tool-free PTO shaft engagement. HRC 58–62, CE marked, UK supply.

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PTO Drive Shafts · UK Supplier

Splined Yoke 11 Push Pin

A precision-engineered connection component designed for agricultural and industrial PTO drive shaft assemblies — delivering reliable torque transmission with fast, tool-free installation across demanding UK field conditions.

What Makes the Splined Yoke 11 Push Pin Different

YokeThe Splined Yoke 11 Push Pin is a core interface component used within PTO drive shaft assemblies, connecting the rotating shaft to the implement or gearbox yoke through a positive splined engagement. Unlike threaded locking systems that require tools and add assembly time, the push-pin mechanism allows operators to attach or detach the shaft in seconds — a genuine advantage when working through multiple implements across a long shift in UK agriculture or industrial plant environments. The component is machined from high-grade alloy steel and heat-treated to withstand the cyclic torque, axial shock, and environmental exposure typical of British farming seasons.

Splined connections at this interface are critical because they transmit full torque without the rotational slip or fretting that plagues keyed alternatives. The eleven-spline count provides a dense engagement surface, spreading load evenly across the circumference of the bore and dramatically reducing peak stress on any individual tooth. This design philosophy extends service life considerably versus equivalent six- or eight-spline configurations, making the Splined Yoke 11 Push Pin a preferred choice among UK farm machinery dealers, OEM integrators, and plant hire operators who require high uptime from their power take-off systems.

Product Advantages

Why UK operators choose this splined yoke for critical PTO applications

Tool-Free Engagement

The push-pin locking collar releases with a single thumb press, enabling shaft changes in under ten seconds. Operators switching between a mower, baler, and spreader in a single day save meaningful cumulative time compared with bolt-on or threaded yoke alternatives.

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11-Spline Torque Distribution

With eleven engagement splines sharing the transmitted torque, peak tooth stress is reduced by roughly 35–40% compared with six-spline designs at equivalent shaft diameter. This geometry is well-suited to high-demand applications such as woodchippers, rotary cultivators, and slurry tanker pumps common across England and Scotland.

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Heat-Treated Alloy Steel

Each yoke is machined from forged alloy steel and subjected to induction hardening on bearing and spline surfaces, achieving a surface hardness of HRC 58–62 while retaining a tough, shock-resistant core. The result is a component that handles the mixed shock and steady-state loading seen in UK grassland and arable operations without accelerated wear.

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Corrosion-Resistant Finish

A phosphate-and-oil or zinc-plated surface treatment forms a barrier against the damp British weather, muddy field conditions, and winter salt spray exposure. Proper greasing through the standard grease nipple further extends the operational life of the splined bore well beyond the two-season performance of unprotected mild steel alternatives.

Technical Specifications

All values are nominal. Contact our technical team for custom profiles or non-standard shaft configurations.

Splined Yoke 11 Push Pin technical drawing and dimensions
पैरामीटर Specification नोट्स
प्रोडक्ट का नाम Splined Yoke 11 Push Pin PTO interface component
Spline Count 11 splines DIN / ISO involute profile
Locking Mechanism Push-pin spring-loaded collar Tool-free engagement
सामग्री Forged alloy steel (20CrMnTi or equivalent) Core toughness retained
Surface Hardness HRC 58–62 (spline + bearing surfaces) Induction hardening process
सतह का उपचार Phosphate-and-oil / zinc plating Corrosion protection
Bore Profile Involute spline, 6-series or custom Matched to standard PTO shaft OD
Yoke Ear Width (W) Refer to dimensional drawing above Custom sizes available
अधिकतम गति Up to 1,000 rpm (standard series) 1,000 rpm and 540 rpm tractor PTO compatible
Lubrication Point Standard grease nipple (M6) Grease every 8 hours of operation
Compatible PTO Standards ISO 500 / ASAE S219 Fits majority of UK tractor fleet
प्रमाणन CE marked; REACH compliant Meets UK machinery directive requirements
Minimum Order Quantity 10 pieces (standard); 1 piece (sample) OEM and bulk pricing available

Where This Splined Yoke Performs

Application scenarios across UK agriculture, groundscare, and industrial plant

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Arable & Grassland Farming

Fitted to round balers, forage harvesters, mower-conditioners, and power harrows operating across East Anglia, the Midlands, and Scotland where rapid implement changes and high-torque field work are daily requirements.

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Groundscare & Estate Management

Used in flail mowers, rotary cutters, and vacuum collectors on golf courses, parklands, and National Trust estates throughout England and Wales, where lower torque but high frequency use demands durable, easy-service connections.

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Industrial Plant & Construction

Integrated into concrete mixers, hydraulic pump drives, wood chippers, and auger drives at UK construction sites and quarrying operations, where continuous duty cycles place sustained demands on spline interface durability.

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OEM Machinery Manufacturing

Adopted by UK-based and European OEM manufacturers building bespoke implement and attachment lines, where precise dimensional tolerances, consistent batch quality, and documentation for CE marking processes are non-negotiable.

Complete PTO Drive Shaft Series

The Splined Yoke 11 Push Pin is compatible with all four series in our PTO drive shaft range

Series G

PTO Drive Shaft G Series

General-purpose series suited to mid-range agricultural implements. Available in multiple torque ratings and tube configurations for widespread UK tractor compatibility.

Series S

PTO Drive Shaft S Series

Heavy-duty S-series built for high-torque applications including straw choppers, large-diameter augers, and slurry mixers frequently deployed on upland and mixed farms in the North of England.

Series L

PTO Drive Shaft L Series

Extended-length L-series designed for implements requiring greater offset or articulation angle, particularly on full-track tractors and telescoping boom platforms used in specialist horticulture.

Series T

PTO Drive Shaft T Series

Telescoping T-series offering fully adjustable working length, ideal for compact tractors, ride-on implements, and situations where the PTO-to-implement distance varies between operations.

Customer Success: Lincolnshire Arable Operation

A verified field performance case from the UK primary arable farming region

CASE STUDY — Fenland Farms Ltd, Spalding, Lincolnshire

Fenland Farms Ltd operates 1,400 hectares of intensive arable and brassica production across the Lincolnshire Fens. The farm runs four Case IH Optum tractors and two John Deere 8R units across a heavy spring drilling, chemical application, and harvest programme. Their previous PTO shaft supplier delivered yoke components with a six-spline bore interface and a threaded lock collar; field supervisors reported that collar removal alone consumed between four and eight minutes per shaft change during busy periods — a significant inefficiency across a fleet-scale operation.

After specifying the Splined Yoke 11 Push Pin across twelve replacement shafts in spring 2024, the farm manager noted that shaft change times decreased to under one minute per coupling, and that the eleven-spline interface showed no measurable wear at the 400-hour service inspection — against the previous six-spline version which routinely required shimming by the 250-hour mark. The corrosion-resistant finish also survived a particularly wet Lincolnshire autumn without pitting at the spline shoulders. Fenland Farms subsequently converted their entire implement fleet to this yoke standard and placed an annual supply contract for the 2025 and 2026 seasons.

PTO Shaft workshop

Result: 87% reduction in shaft-change downtime · Zero spline wear at 400 hrs · Full fleet standardisation achieved

What UK Operators Say

★★★★★

“We replaced the yokes on our Kverneland baler and power harrow last season. The push-pin action is extremely positive and there is no perceptible play in the splined bore even after a full winter of work. Far better than what we had before.”

— James H., Farm Manager · North Yorkshire

★★★★★

“We purchase these yokes for our groundscare machinery maintenance contracts across the East Midlands. Lead times are reliable, the dimensional tolerances are consistent across batches, and the finish survives outdoor storage between seasons without deterioration.”

— Andrew P., Technical Director · Machinery Servicing Company, Nottinghamshire

★★★★★

“As an OEM building specialist attachments for compact tractors, we need splined yokes with exactly the right bore profile and consistent hardness across every batch. The technical support from the team was thorough, and the first article samples passed our internal gauging without any rework.”

— Sarah W., Procurement Manager · Implement OEM, West Midlands

Manufacturing & Custom Engineering Capability

PTO drive shaft factory machining line

Our production facility operates a dedicated CNC spline hobbing and broaching centre supported by in-house heat treatment, coordinate measuring machine (CMM) inspection, and surface finishing lines. This integrated manufacturing model means every Splined Yoke 11 Push Pin leaves the factory as a fully verified component — not an assembly of sub-contracted parts checked only by paperwork. For UK B2B customers with non-standard requirements, the facility handles custom bore profiles, non-standard spline counts, alternative materials (stainless steel or high-manganese alloy), and special coatings including hard chrome or Geomet for aggressive marine or coastal environments.

OEM customers commissioning bespoke PTO shaft assemblies for export or specialist UK markets receive full first-article inspection reports, material certificates (3.1 per EN 10204), dimensional reports, and CE Declaration of Conformity documentation as standard. Low minimum order quantities — including single-piece sampling — mean that smaller UK machinery builders and farm workshops can access the same precision-manufactured components as large fleet operators, without the cost overhead of high-commitment orders. For volume pricing, lead time scheduling, or a drawing review, the team at pto-drive-shafts.com is available via the contact below.

अक्सर पूछे जाने वाले प्रश्नों

Common questions from UK agricultural dealers, OEM buyers, and farm machinery operators

What is the price of a Splined Yoke 11 Push Pin and where can I get a quote from a UK supplier?

Pricing for the Splined Yoke 11 Push Pin depends on the bore diameter, surface finish specification, and order quantity. Unit costs decrease meaningfully at volume thresholds of 50, 100, and 500 pieces, so UK B2B customers — from independent farm workshops to national agricultural dealers — are encouraged to contact the sales team directly for a tailored price. The fastest route is to send your drawing, part number, or a brief written specification to [email protected]. Sample orders are accepted from a single piece at sample pricing, which allows OEM engineers and procurement teams to run first-article inspection and gauging before committing to a production run. Volume pricing is available from 50 pieces upwards, and annual blanket order arrangements can be discussed for UK customers requiring scheduled call-off deliveries across the season.

How do I know which splined yoke fits my tractor PTO shaft in the UK?

The correct splined yoke is determined by three parameters: shaft outer diameter, spline count, and the implement-side bore profile. Most UK tractors operating at 540 rpm use a 1-3/8 inch six-spline PTO output stub, while 1,000 rpm tractors typically use either a 1-3/8 inch 21-spline or a 1-3/4 inch 20-spline configuration. The Splined Yoke 11 Push Pin uses an eleven-spline involute bore profile and is designed for fitment at the implement end of the drive shaft — not directly onto the tractor PTO stub. If you are unsure of your shaft specification, measure the outer diameter of the splined section in millimetres, count the number of teeth around the circumference, and note the length of the splined engagement zone. Providing these three figures — along with your implement make and model if known — allows the technical team to verify the correct match and recommend the appropriate yoke configuration for your application.

What is the difference between a push-pin yoke and a bolt-on yoke for agricultural PTO shafts?

A push-pin yoke uses a spring-loaded ball-detent or captive pin mechanism built into the locking collar. To engage the shaft, the operator slides the yoke onto the splined section and the pin clicks into a groove automatically; to release it, a thumb press on the collar pin is all that is needed — the entire process takes under ten seconds and requires no tools. A bolt-on yoke, by contrast, uses a retaining bolt threaded through the yoke bore that must be loosened with a spanner before the shaft can be removed, typically adding three to eight minutes per implement change. For UK farm operations that switch between a mower, baler, power harrow, and spreader across a single working day, the cumulative time saving of push-pin yokes is substantial. The push-pin design is the preferred standard across the UK agricultural machinery sector and is generally specified for all new implement builds and replacement shaft assemblies where rapid changeover is a priority.

Can I order a custom-bore splined yoke with a non-standard spline count for an OEM agricultural implement built in England?

Yes, the manufacturing facility handles fully custom splined yoke profiles as a standard service for OEM customers. This includes non-standard spline counts, modified pressure angles, inch or metric bore dimensions, and altered yoke ear widths to match specific cross-bearing kits. UK-based implement manufacturers building specialist attachments — from precision seeders in East Anglia to stone buriers in the West Country — regularly submit 2D engineering drawings or ISO tolerancing specifications for review. The process begins with a no-obligation drawing review, followed by a first-article sample at low minimum quantity. Material traceability certificates (3.1 per EN 10204), full CMM dimensional reports, and CE Declaration of Conformity documentation are provided as standard with all OEM orders. Delivery of first-article samples is typically achievable within four to six weeks from drawing approval, depending on material and surface treatment specification.

How often should I grease the splined yoke on my PTO shaft during the UK harvest season?

During intensive seasonal use — such as the long daily shifts typical of UK cereal and root crop harvests — the splined yoke should receive a grease application every eight operating hours via the M6 grease nipple. In lighter-duty or intermittent applications, such as occasional hedge trimming or estate groundscare work, a weekly greasing schedule is adequate. Use a lithium-complex EP2-grade grease rated for high-speed rotating components; this grade is widely available from UK agricultural merchants and is compatible with the phosphate-and-oil surface treatment applied to the bore. Fretting wear at the spline flanks — the most common cause of premature yoke failure in British field conditions — is almost entirely preventable with consistent lubrication. Operators working in particularly wet or abrasive conditions across Scotland, Wales, and the north of England should consider reducing the interval to six hours during peak season to maintain a full grease film across the engagement surface.

Where can I find a reliable PTO drive shaft splined yoke supplier with fast delivery to the UK?

pto-drive-shafts.com supplies splined yoke components and complete PTO drive shaft assemblies to UK agricultural dealers, independent farm workshops, plant hire companies, and OEM manufacturers across England, Scotland, and Wales. Standard catalogue items — including the Splined Yoke 11 Push Pin — are held in inventory for prompt dispatch, with orders acknowledged on the same working day. Bespoke and non-catalogue parts are manufactured to a quoted lead time verified at the point of order. For urgent replacement requirements during harvest or planting seasons, the team can advise on available stock and expedited options. Contact [email protected] with your part requirement, drawing reference, or a description of the failed component, and the technical sales team will respond with pricing, availability, and estimated delivery to your UK address within one business day.

Ready to Source Splined Yokes for Your Operation?

Whether you need stock replacements or a custom-engineered batch, our team responds to UK enquiries within one business day.

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