Description
Industrial Conveyor Components · UK B2B Supply
1775 Sprocket Drive Wheel
Precision-engineered plastic modular belt drive sprockets for continuous conveyor operations across UK food processing, packaging and logistics facilities.
The 1775 Sprocket Drive Wheel is purpose-built to engage directly with the 1775-series plastic modular conveyor belt, delivering torque from the drive shaft to the belt surface with minimal slip and consistent pitch engagement. Manufactured from engineering-grade acetal (POM) or polyamide depending on load requirements, each sprocket is dimensionally machined to tight tolerances — Bore (RB) options of 25, 30, 35 and 40 mm ensure compatibility with the shaft sizes most commonly found in UK conveyor installations. Whether you are retrofitting an ageing food production line in Manchester, commissioning a new packaging cell in the West Midlands, or replacing worn drive components in a cold-store logistics hub in Yorkshire, the 1775 Sprocket Drive Wheel slots into existing frameworks without costly adaptation work. The bolt-hole pattern and hub width (29 mm inner, 44 mm outer hub face) are kept consistent across the full tooth-count range, so you can switch from 16T to 21T without changing your shaft arrangement — a practical advantage when adjusting belt speed ratio or belt tracking.
Why UK Engineers Specify the 1775 Drive Sprocket
Precision Machined Bore
Four standard bore sizes (25 / 30 / 35 / 40 mm) machined to H7 tolerance for direct shaft mount — no sleeve adapters, no field reaming.
Food-Safe Polymer Construction
Acetal (POM) and polyamide options comply with EU 10/2011 and UK food contact material regulations — critical for BRCGS-certified food sites.
Cross-Compatible Tooth Counts
16T, 19T, 20T and 21T variants share identical hub geometry, making speed-ratio changes a shaft-key swap rather than a full head-shaft rebuild.
Wide Temperature Window
Operates reliably from -30 °C (blast-freeze) to +80 °C (hot-wash CIP cycles), covering practically every UK cold-chain and processing scenario.
Corrosion-Free by Design
No rust, no pitting, no surface coatings to flake off. Ideal where stainless-steel sprockets cause galvanic issues or where washdown chemicals are aggressive.
Low Noise & Self-Lubricating
Polymer-on-polymer engagement is inherently quieter than metal sprockets and requires zero lubrication — cutting maintenance visits and reducing product contamination risk.
Operating Principle, Materials & Application Scenarios
Drive power enters the conveyor system at the head shaft and transfers through the sprocket’s precision-cut tooth profile directly into the hinge rods of the 1775-series modular belt. Because the tooth geometry is matched exactly to the belt’s 1.75-inch (44.45 mm) pitch, there is no longitudinal slippage during engagement — each tooth seats cleanly into the belt pocket and releases cleanly on the return side. This positive-drive action eliminates the belt tensioning headaches associated with friction-drive flat belts, and it means the sprocket operates effectively even under variable load profiles — the sort of intermittent loading typical in UK poultry processing lines, automotive parts washing tunnels, or biscuit cooling conveyors.
Acetal (POM) is the default material: it offers an excellent combination of dimensional stability, high surface hardness and low moisture absorption, making it the right choice for food-contact, washdown and moderate-temperature environments. Where the operating temperature regularly exceeds 60 °C — in-line tunnel ovens, heat-seal stations, or high-pressure steam CIP systems — we supply the polyamide (PA6 or PA66) variant, which retains its mechanical properties at elevated temperatures while accepting a small degree of moisture absorption without compromising fit on the shaft bore. Both polymers are pigmented to the customer’s choice of colour (natural, blue, or black) to support in-line visual quality checks — a practical feature appreciated by QA teams on UK food manufacturing sites that must demonstrate traceability under BRC and SALSA audit conditions.
Food & Beverage Processing
Poultry, fish filleting, bakery, dairy — washdown-safe, no lubricant contamination risk.
Packaging & Palletising
Case erectors, bottle unscramblers, shrink-wrap tunnels across UK FMCG facilities.
Cold Chain & Logistics
Blast-freeze conveyors, chilled sortation lines, ambient distribution centres.
Automotive & General Manufacturing
Parts washing, assembly transfer, paint pre-treatment lines where corrosion resistance matters.
Technical Specifications
Hub face width: 44 mm (outer) / 29 mm (inner). If your application requires a non-standard tooth count, bore size or hub configuration, please contact our technical sales team — custom machining is available with lead times from 10 working days.
Customer Success: Reducing Drive Maintenance Downtime by 60%
UK Poultry Processing — West Yorkshire, England
A medium-sized poultry processing plant in Wakefield was running stainless-steel sprockets on their 1775-series chiller conveyors. Despite regular greasing schedules, the sprockets were corroding at the bore interface and wearing unevenly within six months of service — a combination of the ammonia-heavy refrigerant atmosphere and the aggressive chlorinated washdown regime. Unplanned changeovers during production shifts were costing the facility roughly 14 hours of downtime per quarter, each one requiring a permit-to-work and two maintenance engineers.
After switching to the 1775 Sprocket Drive Wheel in POM blue across all seven conveyor head shafts, the site recorded zero unplanned sprocket-related stoppages over the following 12 months. The blue colouring satisfied their metal-detection-equivalent visual check protocol, and the corrosion-free polymer eliminated the ammonia-induced pitting that had been accelerating wear on the previous steel components. Maintenance intervals moved from quarterly to annual, and the total parts cost — including the initial switch-over — was recovered within the first four months through saved downtime alone.
What Our Clients Say
“We’ve trialled several makes of plastic sprocket on our fish processing lines in Aberdeen and these are the only ones that have held dimensional tolerance after two years of continuous three-shift operation. Bore fit has not opened up at all.”
— Engineering Manager, Seafood Processing Facility, Aberdeen, Scotland
“Lead time was critical — we needed 28 sprockets to get a line back into production after an emergency. The team had them machined, quality-checked and on a next-day pallet from our order placed at 10am. That kind of response is genuinely rare with specialist components.”
— Maintenance Supervisor, Confectionery Manufacturer, Birmingham, England
“We source all our 1775 conveyor consumables through this supplier now — sprockets, idler wheels, the belt itself. Having one technical contact who understands the whole system saves hours of coordination and means the components are always properly matched.”
— Procurement Lead, 3PL Logistics Centre, Milton Keynes, England
Custom Manufacturing & Factory Capabilities
Our production facility operates a dedicated polymer machining line with CNC turning centres and milling cells capable of producing non-standard sprocket configurations from short-run batches upward. If your conveyor system uses a shaft diameter outside the standard 25–40 mm bore range, requires a keyway or set-screw flat, needs a split-hub design for mid-shaft installation, or uses a tooth count not listed in the standard catalogue (anything from 12T to 30T is achievable in 1775 series geometry), our application engineers will produce a 2D drawing for approval before any material is cut. Minimum order quantities for custom work are kept low — we understand that a single-line facility may need just four or six sprockets per drive shaft and we accommodate that without the tooling surcharges typical of large production foundries.
We also offer consignment stock agreements for UK distributors and OEM conveyor builders: pre-agreed quantities of fast-moving sizes (typically 16T and 20T in 30 mm bore) held at your facility on a call-off basis, so your engineers never face a production halt waiting for a sprocket. Contact our sales team to discuss the arrangement that suits your operation.
Complete Your 1775 Conveyor System
The drive sprocket works as part of a matched component set. For best belt life and smoothest tracking, pair it with the correct belt and return-side hardware:
1775 Gapless Sideflex Run Single Hinge Chain
The belt that this sprocket was designed to drive. Gapless sideflex construction handles tight radius curves without edge-gap opening — critical for product transfer on curved conveyors in UK poultry and bakery lines.
1775 Sprocket Idler Wheel
The return-end companion to the drive sprocket. Maintains correct belt tension and alignment on the tail shaft without powered drive — available in matching bore sizes and tooth counts to keep your conveyor geometry consistent.
Frequently Asked Questions
Ready to Order or Need Technical Advice?
Our application engineers are available to help you select the right sprocket specification for your conveyor — no obligation, no minimum order to enquire.
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