{"id":4054,"date":"2026-07-06T05:12:53","date_gmt":"2026-07-06T05:12:53","guid":{"rendered":"https:\/\/agriculturalgearboxes.top\/?post_type=product&p=4054"},"modified":"2026-07-07T05:06:38","modified_gmt":"2026-07-07T05:06:38","slug":"hc-9-311-jcg-rotary","status":"publish","type":"product","link":"https:\/\/agriculturalgearboxes.top\/da\/product\/hc-9-311-jcg-rotary\/","title":{"rendered":"HC-9.311-JCG Rotary"},"content":{"rendered":"
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Agricultural Power Transmission Solutions<\/p>\n

HC-9.311-JCG Rotary<\/h2>\n

High-torque bevel gear transmission engineered for UK farms, contractors, and OEM machinery builders \u2014 rated at 50 HP with a precise 1:3 ratio for demanding field applications.<\/p>\n

\ud83d\udce7 F\u00e5 et tilbud<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Landbrugsgearkasse\"The HC-9.311-JCG agricultural gearbox is purpose-built for the rigours of British farming. Designed around a 36\/12-tooth bevel gear set with a 4.35 module, this unit delivers a clean 1:3 speed reduction at up to 540 rpm rated input \u2014 exactly matching the standard PTO output of UK tractors from 60 HP upward. Whether you’re driving a flail mower on a Cotswold hillside, running a compost turner on a Norfolk arable holding, or powering a bespoke harvesting attachment for a Scottish contractor fleet, the HC-9.311-JCG provides the mechanical reliability that commercial operators depend on. The 21 kg net weight strikes a balance between structural robustness and practical handling during field installation or workshop servicing, and the input\/output arrangement \u2014 1 3\/8 Z6 splined shaft combined with optic-axis options \u2014 ensures straightforward integration with standard PTO drive shafts and custom driveline configurations alike. Every unit leaves our facility having passed load and noise testing, giving UK distributors and end-users a product they can fit and forget across multiple seasons.<\/p>\n<\/div>\n

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HC-9.311-JCG Agricultural Gearbox \u2014 Standard Production Unit<\/p>\n<\/div>\n

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\ud83d\udcde Send Enquiry Now<\/a><\/div>\n<\/div>\n

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1:3<\/div>\n
Gearforhold<\/div>\n<\/div>\n
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50 HP<\/div>\n
Effektvurdering<\/div>\n<\/div>\n
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540 rpm<\/div>\n
Nominel indgang<\/div>\n<\/div>\n
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21 kg<\/div>\n
Net Weight<\/div>\n<\/div>\n
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36\/12<\/div>\n
Teeth Count<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Tekniske specifikationer<\/h2>\n

Full product parameter data extracted from factory documentation. All values are nominal; contact us for tolerance sheets or custom configurations.<\/p>\n

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Produktparametre<\/th>\n<\/tr>\n
Item<\/th>\nV\u00e6rdi<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nHC-9.311-JCG<\/td>\n<\/tr>\n
Forhold<\/td>\n1:3<\/td>\n<\/tr>\n
T\u00e6nder<\/td>\n36\/12<\/td>\n<\/tr>\n
Modul<\/td>\n4.35<\/td>\n<\/tr>\n
Power (HP)<\/td>\n50<\/td>\n<\/tr>\n
Nominel indgang<\/td>\n540 rpm<\/td>\n<\/tr>\n
Beskrivelse af input\/output<\/td>\n1 3\/8 Z6 \/ Optic axis \/ Optic axis<\/td>\n<\/tr>\n
Weight (N.W)<\/td>\n21 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Series Length Reference (mm)<\/h3>\n
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Length<\/th>\n-1<\/th>\n-2<\/th>\n-3<\/th>\n-4<\/th>\n-5<\/th>\n-6<\/th>\n-7<\/th>\n-8<\/th>\n-9<\/th>\n-10<\/th>\n-11<\/th>\n-12<\/th>\n-13<\/th>\n-14<\/th>\n<\/tr>\n<\/thead>\n
L<\/td>\n375<\/td>\n500<\/td>\n615<\/td>\n670<\/td>\n700<\/td>\n780<\/td>\n810<\/td>\n950<\/td>\n1060<\/td>\n1140<\/td>\n1200<\/td>\n1250<\/td>\n1350<\/td>\n1500<\/td>\n<\/tr>\n
L1<\/td>\n220<\/td>\n345<\/td>\n460<\/td>\n515<\/td>\n545<\/td>\n625<\/td>\n655<\/td>\n795<\/td>\n905<\/td>\n985<\/td>\n1045<\/td>\n1095<\/td>\n1195<\/td>\n1345<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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\"HC-9.311-JCG<\/p>\n

Dimensional drawing \u2014 HC-9.311-JCG series<\/p>\n<\/div>\n<\/div>\n

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How It Works \u2014 Design & Materials<\/h2>\n

Understanding the engineering behind the HC-9.311-JCG helps buyers and OEM engineers specify the right unit first time.<\/p>\n

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Bevel Gear Mechanism<\/h3>\n

The HC-9.311-JCG uses a pair of precision-cut bevel gears \u2014 36 teeth on the driven wheel and 12 on the pinion \u2014 to convert PTO rotational input into a reduced-speed, higher-torque output at a 90-degree shaft angle. This perpendicular arrangement is the geometry that unlocks compatibility with the widest range of trailed and mounted implements, from side-discharge mowers to soil-preparation equipment. The 4.35 module gives each tooth generous contact area, spreading load and resisting pitting under shock loads common in harvesting or tillage work.<\/p>\n<\/div>\n

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Housing & Gear Material<\/h3>\n

The main housing is produced from high-strength ductile cast iron, chosen for its superior vibration-damping properties versus aluminium alloy \u2014 critical when operating over uneven UK field terrain. Internal gears are case-hardened alloy steel (typically 20CrMnTi or equivalent), heat-treated to 58\u201362 HRC surface hardness for long service intervals. Precision-ground gear flanks achieve grade 6 accuracy, minimising backlash and ensuring quiet, consistent power delivery even at sustained 540 rpm input over full working days.<\/p>\n<\/div>\n

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Lubrication & Sealing<\/h3>\n

Splash lubrication with EP80W-90 gear oil ensures that all rotating surfaces receive adequate film thickness across the full operating temperature range encountered in British seasons \u2014 from cold January field prep to warm July harvest runs. Double-lipped oil seals at all shaft exits meet IP65 ingress protection in practice, keeping field dust and moisture out of the gear chamber. Drain, fill, and sight plugs are all wrench-accessible for quick maintenance in a farm workshop without removing the unit from the implement.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Applikationsscenarier<\/h2>\n

The HC-9.311-JCG agricultural gearbox fits naturally across the full spectrum of UK arable, grassland, and specialist farming operations.<\/p>\n

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\ud83c\udf41 Flail & Disc Mowers<\/p>\n

Absorbs shock loads from stone strikes; the 1:3 ratio delivers blade-tip speed in the ideal range for clean cuts on UK grassland and amenity turf.<\/p>\n<\/div>\n

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\ud83c\udf4a Rotary Tillers & Cultivators<\/p>\n

High-torque output at reduced speed is ideal for soil engagement; suits light-to-medium soils across Yorkshire, Lincolnshire, and East Anglian arable land.<\/p>\n<\/div>\n

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\u267f Slurry Spreaders & Pumps<\/p>\n

Continuous-duty rating and sealed bearings handle slurry and liquid fertiliser spreading operations reliably, even in the wet autumns typical of western England and Wales.<\/p>\n<\/div>\n

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\ud83d\udee0 OEM Custom Machinery<\/p>\n

Popular with UK machinery builders needing a proven off-the-shelf 50 HP bevel gearbox as the basis for bespoke combine headers, specialist harvesters, and field-trial equipment.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Why This Gearbox Stands Out<\/h2>\n

Each advantage below reflects direct feedback from UK agricultural machinery dealers and farming operations.<\/p>\n

\"Agricultural<\/p>\n

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\u2713 Direct PTO Compatibility<\/p>\n

The 1 3\/8 Z6 splined input is the UK\/EU standard, meaning zero adaptor plates or custom flanges \u2014 bolt on, connect the PTO shaft, and run.<\/p>\n<\/div>\n

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\u2713 Shock-Load Tolerance<\/p>\n

Case-hardened bevel gears with generous 4.35 module handle transient spikes from stone strikes or ground-engagement interruptions without tooth failure.<\/p>\n<\/div>\n

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\u2713 Wide Series Range<\/p>\n

Fourteen length variants (L from 375 mm to 1500 mm) mean distributors can hold one core unit and satisfy almost any driveline geometry requirement off the shelf.<\/p>\n<\/div>\n

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\u2713 Low-Maintenance Design<\/p>\n

Accessible oil service points and double-lipped seals mean annual fluid changes can be completed in under 15 minutes \u2014 reducing downtime during peak seasonal windows.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Related Agricultural Gearboxes<\/h2>\n

If you need a different power rating or configuration, these models from the same series may suit your application.<\/p>\n

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Landbrugsgearkasse<\/p>\n

HC-X30<\/h3>\n

Compact, high-efficiency agricultural gearbox designed for lighter-duty applications, precision seeding, and specialist horticultural machinery where a smaller form factor is paramount.<\/p>\n

View HC-X30 \u2192<\/a><\/p>\n<\/div>\n

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Landbrugsgearkasse<\/p>\n

HC-RC61<\/h3>\n

Heavy-duty round-baler drive gearbox rated for high-cycle continuous operation. Ideal for UK silage contractors and mixed livestock\/arable farms running baling equipment through long summer days.<\/p>\n

View HC-RC61 \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Kundesucceshistorier<\/h2>\n

Real-world applications from UK farming and machinery sectors.<\/p>\n

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\ud83c\udfed Case Study \u2014 UK Machinery OEM<\/p>\n

Lincolnshire Arable Equipment Manufacturer Reduces Lead Time by 40%<\/h3>\n

A Lincolnshire-based OEM building specialist strip-till cultivators had been sourcing bevel gearboxes from a domestic supplier with lead times exceeding 14 weeks and a catalogue limited to three size options. After trialling the HC-9.311-JCG on a batch of twelve machines destined for cereal farms across the East Midlands, their engineering team reported zero warranty returns over a full 18-month growing cycle. The 1 3\/8 Z6 input eliminated the adaptor cost that had previously added \u00a338 per unit, and the 14-variant length series meant that the same purchase order now covered two model lines where previously they had needed separate suppliers. They now source 60 units per year direct, with a standard 6-week delivery window from confirmed order.<\/p>\n

“The series coverage is the real differentiator. We stopped managing two gearbox suppliers and simplified the entire driveline spec.” \u2014 Procurement Manager, Lincolnshire OEM<\/p>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/p>\n

“Running these on our flail hedge-cutters in the Scottish Borders \u2014 now into the third season with no bearing replacements. Seals have held perfectly despite working in wet conditions all autumn.”<\/p>\n

D. McAllister \u2014 Agricultural Contractor, Scottish Borders<\/p>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/p>\n

“Ordered the HC-9.311-JCG series for a batch of slurry pump drives on a mixed dairy farm in Yorkshire. Fit was perfect first time \u2014 the 1 3\/8 spline matched our existing PTO shafts and no machining was needed.”<\/p>\n

G. Hartley \u2014 Farm Machinery Dealer, North Yorkshire<\/p>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/p>\n

“Used as a replacement for a worn-out OEM gearbox on a Kuhn disc mower. The dimensions were spot-on, noise level is noticeably lower, and the price per unit was competitive compared to what we’d been paying through the dealership.”<\/p>\n

T. Walsh \u2014 Workshop Manager, Devon Agricultural Services<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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

Our production facility operates dedicated gear-cutting, heat-treatment, and assembly lines focused exclusively on agricultural power transmission.<\/p>\n

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\"Agricultural<\/div>\n<\/div>\n
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Our facility runs CNC hobbing machines capable of producing bevel and spiral bevel gears up to module 10, supported by in-house vacuum heat treatment achieving consistent case depths of 0.8\u20131.5 mm across production batches. Quality control includes CMM gear-flank inspection, noise bench testing, and load testing to 120% rated torque before each batch is released. For UK buyers requiring OEM customisation \u2014 whether that’s a modified output shaft diameter, a non-standard mounting flange pattern, a specific paint or e-coat specification, or a private-label arrangement \u2014 our engineering team can quote from your drawing or provide reverse-engineering support from a sample unit. Minimum order quantities for standard items start at 10 pieces; bespoke configurations from 50 pieces. We work with UK machinery manufacturers on NDAs and can provide CE-aligned dimensional reports on request.<\/p>\n

F\u00e5 et tilbud \u2192<\/a><\/div>\n<\/div>\n<\/div>\n

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

Answers to the questions UK buyers and OEM engineers ask most often.<\/p>\n