{"id":3984,"date":"2026-07-02T06:10:40","date_gmt":"2026-07-02T06:10:40","guid":{"rendered":"https:\/\/agriculturalgearboxes.top\/?post_type=product&p=3984"},"modified":"2026-07-07T05:16:55","modified_gmt":"2026-07-07T05:16:55","slug":"hc-rc31-lawn-mower-series-gearbox-2","status":"publish","type":"product","link":"https:\/\/agriculturalgearboxes.top\/fi\/product\/hc-rc31-lawn-mower-series-gearbox-2\/","title":{"rendered":"HC-RC31 Lawn Mower Series Gearbox"},"content":{"rendered":"
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Agricultural Gearbox \/ HC-RC31 Series \/ United Kingdom<\/p>\n

HC-RC31 Lawn Mower Series Gearbox \u2014 Reliable Power Transmission for UK Farming Operations<\/h2>\n

Built for 30 HP rated input at 540 rpm, the HC-RC31 delivers precision gear ratios across a broad selection of teeth configurations \u2014 engineered for the field conditions and seasonal demands faced by British agricultural machinery operators.<\/p>\n<\/div>\n

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\"maatalouden The HC-RC31 agricultural gearbox is a robust, high-performance power transmission component purpose-designed for demanding field machinery. Whether your application involves tillage, harvesting, or material handling, this agricultural gearbox delivers consistent torque output across variable operating conditions. The HC-RC31 gearbox integrates seamlessly with standard 540 rpm PTO systems widely used across UK farms, making it a direct-fit upgrade or replacement for existing drivetrain configurations. Its multi-ratio capability \u2014 spanning 1:1.46 through 1:2.3 \u2014 gives operators meaningful flexibility in matching output speed to implement requirements without compromising structural integrity or service life.<\/p>\n

What separates the HC-RC31 from generic market alternatives is its attention to precision machining tolerances across all internal gear sets. With module values of 5.08, 5.0, and 4.0, and gear teeth counts carefully engineered to reduce backlash and improve load distribution, this agricultural gearbox maintains quiet, smooth operation even under sustained heavy-duty cycling. For UK distributors, OEM machinery builders, and farm equipment workshops sourcing reliable components, the HC-RC31 represents an intelligent procurement decision backed by verifiable engineering specifications and consistent production quality.<\/p>\n<\/div>\n

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\ud83d\udce7 Request a Quote \u2014 HC-RC31 Gearbox<\/a><\/p>\n

Typically respond within 24 hours \u00b7 Custom configurations available \u00b7 UK & EU export stock<\/p>\n<\/div>\n

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Tekniset tiedot<\/h2>\n

HC-RC31 | Complete Parameter Table<\/p>\n

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Parametri<\/th>\nValue \/ Description<\/th>\n<\/tr>\n<\/thead>\n
Item<\/td>\nHC-RC31<\/td>\n<\/tr>\n
Suhde<\/td>\n1:1.46 \/ 1:1.69 \/ 1:1.93 \/ 1:2.3<\/td>\n<\/tr>\n
Hampaat<\/td>\n22\/15 \/ 22\/13 \/ 29\/15 \/ 28\/12<\/td>\n<\/tr>\n
Moduuli<\/td>\n5.08 \/ 5.0 \/ 4.0 \/ 4.0<\/td>\n<\/tr>\n
Power (HP)<\/td>\n30 HP<\/td>\n<\/tr>\n
Rated Input<\/td>\n540 rpm<\/td>\n<\/tr>\n
Input\/Output Description<\/td>\n3\/8 Z6 \/ Optic axis \/ Taper spline<\/td>\n<\/tr>\n
Weight (N.W)<\/td>\n21.5 Kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Engineering Drawing \u2014 HC-RC31<\/p>\n

\"HC-RC31<\/p>\n<\/div>\n<\/div>\n

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How the HC-RC31 Agricultural Gearbox Works<\/h2>\n

Construction, material integrity, and field performance<\/p>\n

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\u2699 Gear Transmission Principle<\/p>\n

The HC-RC31 operates on a spur\/bevel gear reduction principle. Input shaft torque from the PTO connection is transferred through the primary gear mesh \u2014 with precisely cut teeth at module values matched to the selected ratio \u2014 before being delivered to the output shaft at the chosen speed reduction. The four available ratios (1:1.46, 1:1.69, 1:1.93, and 1:2.3) allow the operator to fine-tune output RPM depending on the implement’s optimal working speed, without any change to the tractor’s PTO setting. The taper spline and optic axis output options enable direct mating with a wide range of agricultural machinery standards common in the UK market.<\/p>\n<\/div>\n

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\ud83d\udd28 Material & Construction<\/p>\n

The housing is produced from high-grade cast iron, chosen for its vibration-damping properties and superior durability in exposed field environments. Internal gear sets are manufactured from carburised alloy steel, hardened and ground to tight dimensional tolerances that directly support load-bearing performance at 30 HP continuous input. Bearing positions are pre-loaded with quality grease and sealed against ingress of dust, water, and crop debris \u2014 all hazards routinely encountered in British farming conditions from spring drilling through to late autumn harvesting. The net weight of 21.5 Kg keeps the assembly manageable for workshop installation and field servicing.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Where This Agricultural Gearbox Performs<\/h2>\n

Key application environments for the HC-RC31 across UK and global farming<\/p>\n

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\ud83c\udf3f<\/p>\n

Rotary Tillage & Soil Preparation<\/p>\n

Rotary tillers and power harrows fitted across UK mixed farms rely on gearboxes with the torque reserve and ratio flexibility the HC-RC31 delivers.<\/p>\n<\/div>\n

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\ud83c\udf3e<\/p>\n

Forage & Grass Management<\/p>\n

Mowers, tedders, and rakes used in silage operations across the UK’s dairy regions place heavy cyclical demands that the HC-RC31’s robust construction handles reliably season after season.<\/p>\n<\/div>\n

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\ud83c\udf0b<\/p>\n

Sugarcane Harvesting Systems<\/p>\n

Agricultural gearboxes in sugarcane harvesters demand precision alignment and high torque continuity. Our range includes specialised components for elevator slew functions: explore Tarkkuushissin k\u00e4\u00e4nt\u00f6vaihteistot suuren kapasiteetin sokeriruoko-puimureille<\/a> ja Sokeriruokopuimureiden perusleikkurin vaihdelaatikko: Tarkkaa tehoa vaativimpaankin leikkaukseen<\/a>.<\/p>\n<\/div>\n

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\ud83d\udea9<\/p>\n

Seeder & Fertiliser Spreading<\/p>\n

Pneumatic seeders and broadcast spreaders require steady, controlled output RPM. The HC-RC31’s four selectable ratios mean the same agricultural gearbox can be configured to different implements with minimal downtime.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Why the HC-RC31 Stands Apart<\/h2>\n

Engineering and operational advantages for UK agricultural procurement<\/p>\n

\"Agricultural<\/p>\n

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\u2713 Multi-Ratio Versatility<\/p>\n

Four distinct gear ratios from 1:1.46 to 1:2.3 allow one gearbox model to serve multiple implement types across a mixed UK farm operation, reducing spares inventory and procurement complexity for fleet managers and dealers alike.<\/p>\n<\/div>\n

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\u2713 Precision-Cut Gear Teeth<\/p>\n

All internal gears are hobbed and ground to tight tolerances, ensuring low noise, minimal heat generation, and extended service intervals. This level of machining accuracy translates directly to reduced maintenance cost over the operational life of your agricultural machinery.<\/p>\n<\/div>\n

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

The 540 rpm rated input with 3\/8 Z6 spline input makes the HC-RC31 agricultural gearbox compatible with the vast majority of tractors operating on UK and European farms, from sub-50 HP utility tractors right through to mid-range wheeled units used in arable settings.<\/p>\n<\/div>\n

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\u2713 Sealed Against Field Conditions<\/p>\n

IP-rated sealing around all bearing and shaft penetration points protects internal components from the mud, moisture, and chaff that characterise British field conditions from October ploughing through to July harvest. The sealed design dramatically reduces unplanned downtime during critical operational windows.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Our Manufacturing Capability & Custom Gearbox Services<\/h2>\n

Production scale, quality controls, and engineering-to-order for UK OEM and wholesale buyers<\/p>\n

Our manufacturing facility operates across a dedicated agricultural gearbox production floor with CNC hobbing, grinding, heat treatment, and assembly lines running under a single roof. Every HC-RC31 agricultural gearbox that leaves our facility has passed through dimensional inspection, no-load run testing, and a final torque verification check before packing. UK buyers benefit from our experience supplying agricultural machinery OEMs across Europe and the British Isles, with export packing standards matched to long-distance road and sea freight.<\/p>\n

Beyond the standard HC-RC31 product line, we offer a full custom agricultural gearbox design and manufacturing service. Whether you need a non-standard gear ratio, modified mounting face, altered output shaft orientation, or a branded housing for your own OEM range, our engineering team can develop a solution from initial specification through to validated prototype and production release. Minimum order quantities for custom configurations are flexible, making the service accessible to specialist British machinery builders as well as high-volume distributors.<\/p>\n

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\"Agricultural<\/div>\n<\/div>\n
Get a Quote \u2014 Custom or Standard HC-RC31<\/a><\/div>\n<\/div>\n

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Customer Success: HC-RC31 in the Field<\/h2>\n

Real outcomes reported by agricultural machinery operators and distributors<\/p>\n

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\ud83c\udfed Case Study \u2014 UK Agricultural Machinery Distributor, Yorkshire<\/p>\n

\"maataloudenA mid-sized agricultural machinery parts distributor based in North Yorkshire was sourcing replacement gearboxes for a mixed fleet of rotary mowers and disc harrows operated by arable and mixed livestock farms across the region. Their previous supplier had increased lead times to 12 weeks, creating serious stock pressure during the spring drilling season. After trialling a batch of 24 HC-RC31 units across four different ratio configurations, the distributor reported zero warranty returns over a full 18-month operational cycle covering two harvests. The workshop team noted that the consistent machining quality meant fitting time per unit was cut by approximately 20 minutes compared to the previous supply, as shaft alignment required no shimming adjustment. The distributor has since placed a standing blanket order arrangement, maintaining a buffer stock that covers their peak demand period between March and June.<\/p>\n<\/div>\n

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\u201c<\/p>\n

We’ve been fitting the HC-RC31 into our rotary tedder rebuild programme for two seasons now. The 1:1.93 ratio is a perfect match for our standard PTO output and the quality of the casting is noticeably better than what we were getting from the previous supplier out of Eastern Europe. Highly recommended for any UK workshop doing volume throughput on grassland machinery.<\/p>\n

\u2014 James R., Agricultural Workshop Manager, Lincolnshire, UK<\/p>\n

Grassland & forage machinery rebuild \/ 18 months in service<\/p>\n<\/div>\n

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\u201c<\/p>\n

We import agricultural gearbox components from multiple sources and the HC-RC31 has been the most consistent product in our range for the past three years. The technical documentation is accurate, the weight is as stated, and the dimensions are repeatable across batches. Our customers in the East Midlands have had excellent results in power harrow applications at both ratio extremes.<\/p>\n

\u2014 David K., Import Procurement Manager, Nottinghamshire, UK<\/p>\n

B2B agricultural parts import & distribution \/ 3 years purchasing<\/p>\n<\/div>\n

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\u201c<\/p>\n

As a small OEM building specialist seeding machinery for the UK vegetable and brassica market, sourcing a reliable agricultural gearbox at this power range and weight was a recurring challenge. The HC-RC31 solved that problem. The taper spline output option gives us the exact interface we need, and the team were very responsive when we needed minor documentation changes to support our CE marking process.<\/p>\n

\u2014 Sarah M., Director, Specialist Seeder Manufacturer, Suffolk, UK<\/p>\n

OEM machinery builder \/ vegetable cropping sector<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Usein kysytyt kysymykset<\/h2>\n

Questions from UK agricultural engineers, machinery dealers, and procurement teams<\/p>\n

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What is the best agricultural gearbox ratio for a PTO-driven rotary mower operating at 540 rpm in the UK?<\/p>\n

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For a PTO rotary mower running at 540 rpm, the 1:1.69 or 1:1.93 ratio of the HC-RC31 agricultural gearbox is most commonly selected. The choice depends on your target blade tip speed \u2014 the 1:1.93 ratio gives a lower output RPM suited to heavier crop conditions such as mature grassland or roadside verge cutting, while 1:1.69 is preferred for lighter, faster mowing passes on well-maintained pasture.<\/p>\n<\/div>\n<\/div>\n

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How much does an HC-RC31 agricultural gearbox cost, and can I get a price quote for bulk supply to a UK dealership?<\/p>\n

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Pricing for the HC-RC31 agricultural gearbox depends on the quantity ordered, ratio configuration, and any customisation requirements. We supply UK dealerships and distributors with competitive bulk pricing and flexible MOQ arrangements. To receive a formal price quote tailored to your procurement volume, please contact us via email at sales@agriculturalgearboxes.top and we will respond within one working day with a full landed-cost breakdown.<\/p>\n<\/div>\n<\/div>\n

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Where can I find a reliable agricultural gearbox supplier in the UK who can ship HC-RC31 units with short lead times?<\/p>\n

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Our HC-RC31 agricultural gearboxes are stocked at export-ready quantities with standard lead times of 7 to 15 working days for UK delivery depending on volume. We work with established freight forwarders covering UK port entry and can provide door-to-door delivery across England, Scotland, and Wales. For urgent requirements during peak season, we maintain a priority fulfilment queue \u2014 contact our sales team directly to confirm current stock availability.<\/p>\n<\/div>\n<\/div>\n

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Which agricultural gearbox is compatible with a 30 HP PTO-driven disc harrow used on heavy clay soils in the East of England?<\/p>\n

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The HC-RC31 agricultural gearbox is rated at exactly 30 HP input at 540 rpm, making it a direct technical match for PTO-driven disc harrows operating in heavy clay conditions. The 3\/8 Z6 input spline is the standard interface on the vast majority of UK tractors in the 40 to 80 HP bracket. For clay soils where peak torque loads during initial penetration can be significantly higher than running torque, the robust cast iron housing and hardened gear sets provide the shock-load resistance needed for reliable seasonal performance.<\/p>\n<\/div>\n<\/div>\n

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When should I replace the agricultural gearbox on a PTO-driven implement, and what are the warning signs to watch for during a UK growing season?<\/p>\n

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Warning signs that an agricultural gearbox needs replacement include audible gear whine under load, excessive heat at the housing after short operating periods, oil leakage from shaft seals, and noticeable backlash or vibration during direction changes. In UK farming practice, it is advisable to inspect gearbox condition before the spring cultivation season and again before autumn drilling \u2014 the two highest-load periods. Replacing a worn HC-RC31 agricultural gearbox proactively before a failure occurs avoids the far greater cost of implement downtime during a narrow planting window.<\/p>\n<\/div>\n<\/div>\n

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How do I get a custom agricultural gearbox designed for a specialist UK machinery OEM application with non-standard output shaft requirements?<\/p>\n

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Our engineering team accepts custom agricultural gearbox briefs from UK OEM manufacturers and specialist machinery builders. The process begins with a technical enquiry via email, where you provide the power rating, desired ratios, mounting face requirements, shaft dimensions, and output torque targets. From that specification we prepare a design proposal and timeline. Prototype lead times typically run eight to fourteen weeks for new designs, with full production following successful validation. Contact sales@agriculturalgearboxes.top with your specification to start the conversation.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Ready to Source the HC-RC31 Agricultural Gearbox for Your UK Operation?<\/p>\n

Stock configurations and custom ratios available \u00b7 B2B pricing \u00b7 UK export delivery<\/p>\n

\ud83d\udce7 Contact Us \u2014 sales@agriculturalgearboxes.top<\/a><\/p>\n<\/div>\n

gzl:n muokkaama<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

HC-RC31 Agricultural <\/span>Gearbox | 30HP, <\/span>540RPM, ratios <\/span>1:1.46\u20131:2.3 | Cast <\/span>iron housing, <\/span>hardened alloy steel gears <\/span>| 3\/8 Z6 \/ taper <\/span>spline \/ optic axis output | UK B2B <\/span>supply.<\/span><\/p>","protected":false},"featured_media":3986,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2002],"product_tag":[],"class_list":["post-3984","product","type-product","status-publish","has-post-thumbnail","product_cat-lawn-mower-series-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/product\/3984","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/comments?post=3984"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/media\/3986"}],"wp:attachment":[{"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/media?parent=3984"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/product_brand?post=3984"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/product_cat?post=3984"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/fi\/wp-json\/wp\/v2\/product_tag?post=3984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}