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What Makes the Splined Yoke 11 Push Pin Different
The 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.
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.
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.
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.

| พารามิเตอร์ | ข้อกำหนด | หมายเหตุ |
|---|---|---|
| ชื่อผลิตภัณฑ์ | 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 |
| วัสดุ | Forged alloy steel (20CrMnTi or equivalent) | Core toughness retained |
| ความแข็งผิว | HRC 58–62 (spline + bearing surfaces) | Induction hardening process |
| การบำบัดพื้นผิว | 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 |
| Maximum Speed | Up to 1,000 rpm (standard series) | 1,000 rpm and 540 rpm tractor PTO compatible |
| จุดหล่อลื่น | Standard grease nipple (M6) | Grease every 8 hours of operation |
| Compatible PTO Standards | ISO 500 / ASAE S219 | Fits majority of UK tractor fleet |
| การรับรอง | CE marked; REACH compliant | Meets UK machinery directive requirements |
| ปริมาณการสั่งซื้อขั้นต่ำ | 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
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.
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.
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.
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.

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

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