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The HC-55 PTO Gearbox: A Proven Speed Increaser for Demanding UK Farming & Industrial Operations
The HC-55 PTO gearbox is a precision-engineered speed increaser designed to handle the rigorous, continuous-duty demands found across British agricultural and industrial environments. Rated at 50 horsepower with a clearly defined 1:1.6 speed ratio, this unit converts a standard tractor PTO output at 540 rpm into a stable, elevated shaft speed — precisely the operating condition required by a wide range of driven machinery common across farms, estates, and contractor fleets throughout England, Scotland, Wales, and Northern Ireland. With a 15/24 helical tooth configuration and a module of 6.0, the HC-55 delivers smooth, low-vibration power transmission that performs reliably even under extended operational cycles typical of British harvest seasons.
Equipped with a 1 3/8 Z6 cone base aequilate spline shaft, the HC-55 PTO gearbox connects directly to the standard PTO outputs of virtually every tractor brand active on UK farms — from John Deere and New Holland to Massey Ferguson, Fendt, Claas, and JCB Fastrac — without the need for adapters or custom machining. This plug-and-play compatibility, combined with the unit’s compact 28.7 kg net weight and sealed bearing assemblies, makes it one of the most practical and cost-effective PTO drive solutions available to UK machinery operators and OEM builders today. Whether you are powering a hay baler across the flat fields of Lincolnshire, running a rotary cutter on Welsh upland pasture, or driving an irrigation pump on a Kent horticultural estate, the HC-55 delivers dependable, repeatable performance season after season.
Technical Specifications — HC-55 PTO Gearbox
Dimensional Drawing — HC-55
Product Gallery
Why UK Operators & OEM Builders Rely on the HC-55
Six engineering and commercial strengths that set this PTO gearbox apart in the British market.
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Helical Gear Precision at Module 6.0
The 15/24 tooth arrangement in the HC-55 PTO gearbox is precision-hobbed to module 6.0 tolerances, resulting in consistent mesh quality, low noise, and minimal heat buildup during sustained high-load operation — qualities that directly reduce wear on mated drivetrain components and extend overall service intervals.
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Universal Compatibility with UK Tractor Fleets
The HC-55 ships standard with a 1 3/8 Z6 cone base spline shaft — the universal interface across all major tractor brands operating in Britain, including John Deere, New Holland, Massey Ferguson, Claas, Fendt, JCB Fastrac, and Case IH. No bespoke adapters. No additional machining. Fit and run.
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Robust Cast Iron Housing — Built for British Conditions
At 28.7 kg net weight, the HC-55 combines structural robustness with practical compactness. The cast iron housing absorbs operational shock and vibration while oil-tight gasket assemblies and sealed bearing housings guard against water ingress — an essential attribute given the wet, muddy field conditions common across UK farming regions year-round.
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High Torque Efficiency Across the Full Ratio
The 1:1.6 ratio is precisely selected to maintain acceptable torque levels at the elevated output shaft speed, avoiding the efficiency losses seen in poorly matched gearboxes. UK operators running the HC-55 on hay balers and silage choppers consistently report stable power delivery even at maximum rated output during peak season.
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Ready Stock & Competitive UK Export Pricing
Ever Power maintains substantial HC-55 inventory to support rapid fulfilment for UK agricultural machinery dealers, spare parts distributors, and OEM assembly lines. Standard export packaging protects units during transit to UK ports including Felixstowe, Southampton, and Liverpool, with flexible shipping terms available on request.
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Low Intervention — Extended Service Life
With correct initial oil fill and periodic lubricant checks at the start of each season, the HC-55 PTO gearbox is capable of delivering thousands of operating hours without major overhaul. This matters enormously to UK contractors and farm businesses that simply cannot afford unexpected drivetrain failures during the critical spring and summer work windows.
Design Principle, Materials & Application Scenarios
The HC-55 operates on the fundamental principle of bevel-helical gear speed conversion. Power enters via the tractor PTO at 540 rpm through the spline input shaft, where the 15-tooth pinion meshes with the 24-tooth gear at module 6.0. The resulting output shaft speed is 864 rpm — a clean, stable rotation that matches the design operating envelope of most UK agricultural implements requiring elevated working speed without proportional torque increase. The gear geometry is specifically optimised to reduce tooth sliding velocity, which is the primary cause of heat generation and premature wear in high-duty PTO applications.
Materials are selected with longevity as the priority. The gear teeth are manufactured from case-hardened alloy steel, ground to precise involute profiles after heat treatment to ensure consistent tooth contact across the full working load range. Bearing races are premium-grade tapered roller bearings selected for their capacity to handle both radial and axial loads simultaneously — a critical requirement given the varied load vectors generated by typical agricultural implement connections. The housing is grey cast iron GG25, chosen for its vibration-damping characteristics and dimensional stability across the wide temperature fluctuations experienced throughout a British agricultural year.
🌿 Hay & Straw Balers
Round and square bale production across East Anglia, Lincolnshire and the Midlands
🚗 Rotary Cutters
Pasture management and roadside verge mowing in rural England, Scotland & Wales
💧 Irrigation Pump Drives
Water transfer & irrigation for horticultural estates in Kent and Lincolnshire
🏭 Silage Choppers
High-throughput forage harvesting for dairy and livestock operations in Cheshire & Shropshire
🗼 Airfield & Ground Maintenance
Turf management rigs for councils, airports and MOD sites across the UK
🔢 OEM Custom Builds
British machinery manufacturers integrating HC-55 units into bespoke agricultural equipment lines
Customer Success Stories
Verified results from businesses operating HC-55 PTO gearboxes in the field.
📄 Full Case Study · Agricultural Contracting · Lincolnshire, England
How a Lincolnshire Baling Contractor Cut Gearbox Downtime by 75% in Two Seasons
A mid-sized agricultural contracting business operating across Lincolnshire and the East Midlands came to us after suffering repeated gearbox failures mid-harvest — failures that were costing them client relationships and emergency repair bills at exactly the wrong time of year. Their round baler fleet, serving cereal farmers across a 40-mile radius, was losing upwards of three full working days per season to drivetrain stoppages. After switching to HC-55 PTO gearboxes across their primary baling units, the operation logged a 75% reduction in unplanned mechanical stoppages over the following two consecutive seasons. The workshop foreman attributed the improvement specifically to the superior oil retention behaviour of the unit’s gasket system and the consistent tooth mesh quality under sustained high-output loads during June and July peak workloads. The business has since doubled its HC-55 order volume for the upcoming season.
Industry: Arable Contracting · Location: Lincolnshire, UK · Application: Round Baler PTO Drives · Season: 2023–2024
★★★★★
“We’ve been building custom silage trailers in Yorkshire for twelve years, and finding a gearbox that matches both our shaft spec and our quality expectation was always a headache. The HC-55 fitted straight onto our PTO configuration without any modification, and after two full seasons of 10-plus-hour daily cycles, we haven’t had a single failure. Ordering process with Ever Power was clear and professional.”
James R.
OEM Equipment Builder · Yorkshire, England
★★★★★
“Our pump drives were the weak link in our Kent irrigation system — every summer brought at least one costly failure at the most inconvenient moment. Since fitting HC-55 PTO gearboxes to three of our main pump sets in spring 2023, we have had zero gearbox issues across two full growing seasons. The sales team was responsive and the technical spec documentation was thorough and accurate.”
Sarah M.
Horticultural Estate Manager · Kent, England
★★★★★
“We took on a grounds maintenance contract at a Scottish airport near Edinburgh and needed compact gearboxes that could handle year-round use — which in Scotland means dealing with everything from frost starts to prolonged wet ground conditions. The HC-55 performed without complaint through the entire contract year. Solid build, fair price, and I’ll be placing another order ahead of this coming season.”
Callum T.
Grounds Maintenance Contractor · Edinburgh, Scotland
Manufacturing Excellence & Custom PTO Gearbox Development
Ever Power has been designing and manufacturing PTO gearboxes and power transmission components for over 18 years, building a supply track record that spans more than 50 countries across six continents. Our vertically integrated production facility gives us full control over every stage of the manufacturing process — from raw material procurement and CNC gear hobbing through to heat treatment, precision grinding, assembly, testing under load, and export packing. This end-to-end control is what allows us to guarantee consistent dimensional and performance quality across every HC-55 PTO gearbox that leaves our facility, regardless of order batch size.
Custom product development is one of our strongest capabilities, and it’s a service that UK OEM machinery manufacturers and specialist engineering firms regularly take advantage of. If your application requires a modified gear ratio outside the standard 1:1.6, non-standard shaft diameters or spline counts, alternative housing mount patterns, surface treatments for enhanced corrosion resistance, or a completely bespoke gearbox design based on your own drawings, our application engineering team can take your requirement from concept through to certified production batch. We work with clients at every stage — from feasibility review and prototype to full-scale supply under long-term framework agreements. Minimum order quantities for custom variants are flexible and discussed openly from the first enquiry.
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18+ Years
PTO Gearbox Manufacturing
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50+ Countries
Global Export Experience
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Full Custom OEM
Bespoke Design & Production
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ISO Certified QMS
Documented Quality Management
Ready to discuss your HC-55 PTO gearbox requirement or custom drive solution for your UK machinery build?
Frequently Asked Questions
Common questions from UK agricultural machinery buyers, OEM manufacturers, and farm operators.
What exactly is the HC-55 PTO gearbox used for in UK agricultural machinery, and which implements does it drive best?
The HC-55 PTO gearbox is a speed increaser used to raise tractor PTO output speed from the standard 540 rpm to 864 rpm, matching the operating requirements of implements such as hay balers, rotary cutters, silage choppers, irrigation pump drives, and ground maintenance machinery. It performs best in sustained-duty applications on UK farms where consistent shaft speed and torque stability are more important than maximum peak power. Its 50 HP rating covers the majority of tractor-mounted implements used on British arable, grassland, and horticultural operations.
How much does the HC-55 PTO gearbox cost, and where can a UK buyer get a current price quote for bulk orders?
Pricing for the HC-55 varies depending on order quantity, configuration, and the current shipping rates to UK ports. To receive an accurate, up-to-date price quote for your specific order volume and delivery requirements, contact our sales team directly at [email protected]. We typically respond within one UK working day. Bulk orders generally attract tiered pricing, and we are open to discussing annual supply agreements with agricultural machinery dealers and OEM builders across England, Scotland, Wales, and Northern Ireland.
Which tractor brands commonly used on British farms are compatible with the HC-55 PTO gearbox input shaft specification?
The HC-55 is fitted with a 1 3/8 Z6 cone base aequilate spline shaft — the standard PTO connection used across all major tractor brands operating in the United Kingdom. This includes John Deere, New Holland, Massey Ferguson, Fendt, Claas, JCB Fastrac, Case IH, Deutz-Fahr, and Valtra, among others. No adaptor or custom shaft modification is required for any of these brands on standard 540 rpm PTO configurations. If you have a non-standard PTO setup, our engineering team can assess compatibility and advise on any modifications needed.
Can Ever Power supply a custom-ratio or non-standard HC-55 variant for OEM machinery manufacturers based in England or Scotland?
Yes, absolutely. Ever Power offers a complete custom gearbox development service for OEM manufacturers based anywhere in the UK. We can modify gear ratios, shaft dimensions, spline counts, housing mount patterns, and surface treatment options to match your exact application specification. Share your technical drawings or outline requirements with our team at [email protected] and we will respond with a detailed feasibility review, lead time estimate, and commercial quotation. Prototype development and pilot batch production are both available before committing to full-scale supply.
How long does shipping typically take from your factory to agricultural machinery dealers or farms in the UK?
Standard sea freight to major UK receiving ports — including Felixstowe, Southampton, Tilbury, and Liverpool — generally takes between 25 and 35 days depending on the sailing schedule and port congestion at both ends. For time-critical orders, air freight to UK international airports can reduce delivery time significantly, at higher freight cost. We strongly recommend UK buyers place orders well ahead of peak agricultural periods — particularly February to April for spring preparation and May to June ahead of summer harvest — to guarantee on-time stock availability without paying air freight premiums.
What oil type and viscosity grade should I use when servicing the HC-55 PTO gearbox on a livestock farm in Scotland or Wales?
For most UK agricultural environments, including livestock farms in Scotland and Wales where cold starts are common, we recommend a GL-4 or GL-5 rated gear oil in SAE 80W-90 viscosity grade. This multi-viscosity rating provides adequate cold-start lubrication film strength in winter temperatures while maintaining sufficient viscosity at elevated operating temperatures during peak summer workloads. On a new unit, change the oil after the first 50 operating hours to flush any initial break-in metal particles. Thereafter, an annual oil change before each season is sufficient under normal operating conditions.
Where can I find a reliable HC-55 PTO gearbox supplier in the UK, and how do I place a bulk order for a fleet of agricultural machines?
Ever Power is a direct manufacturer and established exporter of HC-55 PTO gearboxes with an active supply presence across the UK market. Whether you need a single replacement unit or a bulk contract order for a multi-machine fleet, our sales team can handle your enquiry quickly and transparently. Contact us at [email protected] with your required quantity, application details, delivery location in the UK, and preferred payment and shipping terms. We will respond with a comprehensive quotation and confirm current stock availability within one working day.
Ready to Source HC-55 PTO Gearboxes for Your UK Operation?
Speak to our technical sales team for pricing, stock availability, lead time confirmation, and custom solution enquiries.
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