Anhui Huihuang Chain Transmission Co., Ltd. is one of the leading manufacturers and suppliers of harvester sprocket in China, featured by quality products and good service. If you're going to wholesale advanced harvester sprocket made in China, welcome to get pricelist and free sample from our factory. We also accept customized orders.
Product Overview
harvester sprocket is carbon‑steel sprocket with splined bore and Type‑B boss hub. Teeth are high‑frequency quenched for roller chain drive on agricultural combine harvesters. Installed on header, crop conveyor, threshing, cleaning and grain elevating assemblies. It transmits torque under harsh field conditions with dust, straw debris, mud and impact loads to complete whole harvesting workflow.
Core functions on harvester machine
Power transmission for multiple working assemblies The splined inner bore fits directly onto harvester splined shaft. It transfers engine power through roller chains to drive reel header, crop feeding, threshing drum, grain elevator and grain unloading mechanism for reaping, threshing, cleaning and grain‑discharging operations.
Withstand field impact and alternating loads Harvesting encounters sudden shock loads from straw, soil and stones with frequent start‑stop cycles. The sprocket buffers transient impact, maintains stable chain meshing and prevents tooth jumping and unexpected field downtime.
Material elevating & crop conveying It drives elevator chains to transport grain and straw into threshing chamber and grain tank. It matches chain speed with harvester traveling speed and reduces material blockage to secure working efficiency.
Speed ratio adjustment Sprockets of different teeth numbers change transmission ratio to adjust rotating speed of header, grain elevator and unloading unit, adapting for wheat, rice, corn and variable field conditions.
Key Features
Splined inner bore Involute spline profile instead of standard keyway. High torque‑carrying capacity without slipping under heavy load. Easy on‑site assembly and disassembly, typical agricultural‑machinery connection design.
Thickened Type‑B boss hub Reinforced boss hub improves structural rigidity, resists torque deformation under heavy field vibration.
High‑frequency quenched teeth Hardened tooth surface delivers excellent abrasive‑wear resistance against dust and straw particles. Tough substrate prevents tooth fracture under sudden impact.
Black‑oxide or phosphating surface finish Improve rust resistance against field mud, dew and moist outdoor farm environment.
Applications
Wheat / rice / corn combine harvester; header reel assembly, crop feeding conveyor, threshing unit, grain elevator, unloading auger and straw chopper mechanism.
Note: Industrial sprockets mostly adopt keyway bore. Harvester sprockets commonly use splined bore for high‑torque anti‑impact performance, resisting abrasion from mud and straw for harsh agricultural field service.
Advantages
Splined‑bore design delivers high‑torque slip‑free power transmission matching harvester drive shaft.
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Quenched teeth resist abrasive wear from soil and straw; impact‑tolerant against tooth breakage.
02
Thick Type‑B boss hub provides high rigidity against vibration and deformation.
03
Reliable performance under dusty, muddy outdoor farm conditions.
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Quick replacement for busy harvesting season. Customizable on teeth number and spline specification.
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