Anhui Huihuang Chain Transmission Co., Ltd. is one of the leading manufacturers and suppliers of triple strand conveyor sprocket in China, featured by quality products and good service. If you're going to wholesale advanced triple strand conveyor sprocket made in China, welcome to get pricelist and free sample from our factory. We also accept customized orders.
Product Identification
This is a carbon‑steel three‑row hub‑type sprocket, designed to mate with three‑strand roller chains for heavy‑load conveyor systems and large‑scale machinery transmission. It matches the title: Best Carbon Steel Three‑Row Sprockets for Conveyors and Large Machinery Transmission OEM Customization Supported.
Material & Manufacturing
Material: 45# carbon steel. Teeth can be high‑frequency quenched to improve surface hardness, wear‑resistance and overall service life.
CNC‑milled teeth deliver precise tooth profile for smooth engagement with three‑strand roller chains, reducing running noise and chain abrasion.
Integrated hub‑reinforced structure strengthens the bore area. Finished bore, keyway and set‑screw holes can be machined for secure shaft mounting.
Three‑row tooth design distributes load across three chains, providing far higher load‑bearing capacity than single‑row or double‑row sprockets for heavy‑torque conditions.
Application & Notes
Ideal for heavy‑duty conveyors and large industrial machinery transmission.
Note: Carbon‑steel sprockets are not suitable for wet, wash‑down or food‑grade corrosive environments. Select stainless‑steel three‑row sprockets for such working conditions. OEM custom service is available: custom teeth number, bore size, hub dimension and surface treatment (black oxide, zinc‑plating). Custom production per drawings or samples is supported.
Tooth‑Profile Standards for Carbon‑Steel Three‑Row Sprockets
For three‑row sprockets, the tooth profile of each individual row follows the same standard as single‑row sprockets. Special attention must be paid to strand‑spacing tolerance, to prevent uneven load and premature chain wear.
Chinese National Standard
- GB/T 1243‑2024 Identical adoption of ISO 606:2015. It defines sprocket tooth profile, addendum & dedendum circle and dimensional tolerance. For three‑row sprockets, strand spacing and coaxiality of every tooth disc are strictly controlled for interchangeability with multi‑strand roller chains.
International Common Standards
- ISO 606: Global widely‑used standard. Two series: Series‑A (US‑type:10A‑20A), Series‑B (EU‑type:06B‑32B). Every tooth disc of three‑row sprocket shall comply with this profile, strand spacing is critical for multi‑strand workingISO.
- ANSI B29.1 (ASME US‑Standard): Matches American A‑series roller chains (40#,50#,60#,80#). Domestic 10A/12A/16A/20A are dimensionally interchangeable, widely supplied for North‑American‑market equipment.
- DIN 8187 (German European Standard): Tooth profile for European B‑series chains (06B,08B,10B), used for replacement of European‑imported machinery.
Important distinction: Drive‑type vs double‑pitch conveyor‑type Ordinary three‑row drive sprockets adopt above roller‑chain tooth profiles. Three‑row double‑pitch conveyor sprockets follow ISO 1275 / GB/T 5269, with wider tooth gullets. Never mix drive‑sprocket teeth for double‑pitch chains, or jumping‑tooth and fast wear will occur.
Extra notes for three‑row sprockets
- Uniform tooth profile across all rows;
- Precise strand spacing is the core technical index; wrong spacing will cause over‑loading on partial chain strand;
- Material: 45# carbon‑steel, teeth high‑frequency quenched. OEM custom non‑standard tooth profile & strand spacing is supported.
- Order tip: Confirm chain standard (Series‑A / Series‑B) and exact chain part‑number before production, to guarantee both tooth profile and strand‑spacing match.
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