{"id":1038,"date":"2026-07-17T05:47:36","date_gmt":"2026-07-17T05:47:36","guid":{"rendered":"https:\/\/plastic-modular-belt.com\/?post_type=product&p=1038"},"modified":"2026-07-17T06:23:06","modified_gmt":"2026-07-17T06:23:06","slug":"820-sprocket-drive-wheel","status":"publish","type":"product","link":"https:\/\/plastic-modular-belt.com\/el\/product\/820-sprocket-drive-wheel\/","title":{"rendered":"820 Sprocket-Drive Wheel"},"content":{"rendered":"
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820 Series \u00b7 Plastic Modular Belt Components<\/p>\n

820 Sprocket Drive Wheel<\/h2>\n

High-precision plastic modular belt sprocket engineered for reliable conveyor drive performance across food processing, packaging, and logistics applications throughout the United Kingdom.<\/p>\n

\ud83d\udce7 Get a Quote<\/a>
\n\u2705 Custom bore sizes available \u00a0|\u00a0 \u2705 Non-standard models on request<\/span><\/div>\n<\/div>\n<\/div>\n

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Home \u203a Conveyor Components \u203a Sprocket Wheels \u203a 820 Sprocket Drive Wheel<\/p>\n<\/div>\n

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820 Series Sprocket Drive Wheel \u2014 Machining\/Injection Moulded<\/p>\n<\/div>\n

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Designed for demanding industrial conveyor systems, the 820 Sprocket Drive Wheel delivers precise meshing with modular plastic belts, combining engineering-grade polymer resilience with dimensional accuracy that keeps production lines running without interruption.<\/p>\n<\/div>\n

The 820 Sprocket Drive Wheel is a core drive component in modular plastic belt conveyor systems, purpose-built to transfer rotational force from the drive shaft directly into reliable belt movement. Whether you are running a high-throughput poultry processing facility in Yorkshire, a biscuit production line in the West Midlands, or a parcel sorting hub serving Greater London, the 820 series delivers the consistent engagement geometry that modern belt systems demand. Each sprocket is manufactured to exact pitch diameter tolerances, ensuring smooth belt tracking and minimal wear over extended operational cycles. Available in 19T, 21T, 23T, and 25T tooth configurations, and accommodating bore sizes of 25, 30, 35, and 40 mm, the wheel integrates with a broad range of shaft standards without modification to your existing drive assemblies. The combination of bore flexibility and standardised outside diameters makes line changeovers faster and component sourcing significantly more predictable across multi-site UK manufacturing operations.<\/p>\n

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\ud83d\udcc5 4 Tooth Options<\/span>
\n\ud83d\udd27 Bore: 25\u201340 mm<\/span>
\n\ud83c\udfaf OD: 117\u2013154.2 mm<\/span>
\n\u2699 Machining \/ Injection<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Technical Specifications<\/h2>\n

Complete dimensional data for all standard 820 Sprocket Drive Wheel models. Non-standard configurations available on request \u2014 contact our UK sales team.<\/p>\n

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Sprocket Type<\/th>\nNumber of Teeth<\/th>\nBore (RB) mm<\/th>\nOut Side Diameter (OD) mm<\/th>\nPitch Diameter (PD) mm<\/th>\nStandard<\/th>\n<\/tr>\n
\u25b6 Round Bore<\/td>\n<\/tr>\n<\/thead>\n
820-19T-ZD<\/td>\n19<\/td>\n25 \/ 30 \/ 35 \/ 40<\/td>\n117<\/td>\n117.3<\/td>\nMachining \/
\nInjection<\/td>\n<\/tr>\n
820-21T-ZD<\/td>\n21<\/td>\n25 \/ 30 \/ 35 \/ 40<\/td>\n130<\/td>\n129.3<\/td>\n<\/tr>\n
820-23T-ZD<\/td>\n23<\/td>\n25 \/ 30 \/ 35 \/ 40<\/td>\n141.9<\/td>\n141.2<\/td>\n<\/tr>\n
820-25T-ZD<\/td>\n25<\/td>\n25 \/ 30 \/ 35 \/ 40<\/td>\n154.2<\/td>\n153.2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u26a0 If the sprocket requires a non-standard model, please contact our sales team<\/a> to discuss custom configurations.<\/p>\n<\/div>\n

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How It Works: Drive Principle & Material<\/h2>\n

Engineering insight into the 820 sprocket’s operational mechanics and polymer construction.<\/p>\n

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Drive Engagement Principle<\/h3>\n

The 820 sprocket transmits torque by meshing its precisely machined teeth directly with the drive rod holes in the modular plastic belt. As the shaft rotates, each tooth pocket captures a belt rod, pulling the belt forward in a positive, slip-free motion. This positive engagement eliminates the speed variation found in friction-based systems, making the 820 sprocket particularly valuable in applications where accurate belt positioning is critical \u2014 such as portioning conveyors in food manufacturing or timed merge systems in UK warehousing operations. The uniform pitch diameter across each tooth count variant ensures consistent belt speed regardless of which tooth configuration is selected for your line layout.<\/p>\n<\/div>\n

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Polymer Material & Construction<\/h3>\n

820 Sprocket Drive Wheels are produced from engineering-grade acetal (POM) or polyamide (PA) polymers depending on application requirements. Both grades offer low moisture absorption, excellent dimensional stability across a temperature range of approximately -40\u00b0C to +90\u00b0C, and a self-lubricating surface that drastically reduces the need for external lubrication on the belt contact zone. The acetal variant is the standard choice for food contact environments, meeting the hygiene requirements common in UK BRC-certified food factories. Units are available as machined components for high-precision bore tolerances or as injection-moulded parts where volume pricing and weight reduction are the priority. Surface hardness and impact resistance are maintained even after prolonged wash-down cycles with hot water and approved cleaning chemicals.<\/p>\n<\/div>\n

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Typical Application Scenarios<\/h3>\n