Penerangan
Agricultural Gearbox / HC-RC31 Series / United Kingdom
HC-RC31 Lawn Mower Series Gearbox — Reliable Power Transmission for UK Farming Operations
Built for 30 HP rated input at 540 rpm, the HC-RC31 delivers precision gear ratios across a broad selection of teeth configurations — engineered for the field conditions and seasonal demands faced by British agricultural machinery operators.
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 — spanning 1:1.46 through 1:2.3 — gives operators meaningful flexibility in matching output speed to implement requirements without compromising structural integrity or service life.
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.
📧 Request a Quote — HC-RC31 Gearbox
Typically respond within 24 hours · Custom configurations available · UK & EU export stock
Spesifikasi Teknikal
HC-RC31 | Complete Parameter Table
Engineering Drawing — HC-RC31

How the HC-RC31 Agricultural Gearbox Works
Construction, material integrity, and field performance
⚙ Gear Transmission Principle
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 — with precisely cut teeth at module values matched to the selected ratio — 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.
🔨 Material & Construction
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 — 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.
Where This Agricultural Gearbox Performs
Key application environments for the HC-RC31 across UK and global farming
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Rotary Tillage & Soil Preparation
Rotary tillers and power harrows fitted across UK mixed farms rely on gearboxes with the torque reserve and ratio flexibility the HC-RC31 delivers.
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Forage & Grass Management
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.
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Sugarcane Harvesting Systems
Agricultural gearboxes in sugarcane harvesters demand precision alignment and high torque continuity. Our range includes specialised components for elevator slew functions: explore Kotak Gear Pembunuh Lif Presisi untuk Penuai Tebu Berkapasiti Tinggi dan Kotak Gear Pemotong Asas untuk Penuai Tebu: Kuasa Ketepatan untuk Potongan Paling Sukar.
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Seeder & Fertiliser Spreading
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.
Why the HC-RC31 Stands Apart
Engineering and operational advantages for UK agricultural procurement

✓ Multi-Ratio Versatility
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.
✓ Precision-Cut Gear Teeth
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.
✓ Standard PTO Compatibility
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.
✓ Sealed Against Field Conditions
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.
Our Manufacturing Capability & Custom Gearbox Services
Production scale, quality controls, and engineering-to-order for UK OEM and wholesale buyers
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.
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.

Customer Success: HC-RC31 in the Field
Real outcomes reported by agricultural machinery operators and distributors
🏭 Case Study — UK Agricultural Machinery Distributor, Yorkshire
A 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.
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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.
— James R., Agricultural Workshop Manager, Lincolnshire, UK
Grassland & forage machinery rebuild / 18 months in service
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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.
— David K., Import Procurement Manager, Nottinghamshire, UK
B2B agricultural parts import & distribution / 3 years purchasing
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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.
— Sarah M., Director, Specialist Seeder Manufacturer, Suffolk, UK
OEM machinery builder / vegetable cropping sector
Soalan Lazim
Questions from UK agricultural engineers, machinery dealers, and procurement teams
Ready to Source the HC-RC31 Agricultural Gearbox for Your UK Operation?
Stock configurations and custom ratios available · B2B pricing · UK export delivery
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