We EPG group one of the Biggest Chain and sprocket manufacturer in China. We provide you most type of industry chains, agricultural chains, conveyor chains and related sprockets etc……..

Contact us: Wechat/whatsapp/mobile: +86-13083988828

This With detailed requirments, we can also develop your special designed product. a specialized supplier of a full range of chain & sprockets, sprockets, gears, gear racks, V-belts, couplings and reducers, pto shaft, agricultural gearboxes….Standard roller chain & sprocket is available with pitches from 1/2 to 3 inches. Chain & Sprocket numbers are determined by multiplying the pitch by 80 (a 1/2 inch pitch chain & sprocket would be a No. 40 chain & sprocket). A hyphenated suffix indicates multiple strands.28B21 sprocket with a stock bore is a metric roller chain & sprocket sprocket manufactured under ISO and British Standard 228. Our 28B21 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore we also can supply these sprockets with a specific plain or finished (has key-way and set screws) bore size. We also offer upgrades on our 28B21 sprockets such as black-oxide coatings and heat-treated hardened teeth, hardened teeth increases the durability and wear life of the sprocket while a black oxide coating will create an “anti-rust” coating on the sprocket. Besides the 21 tooth sprocket, we also stock a high-quality 28B roller chain & sprocket and a wide array of roller chain & sprocket accessories. For more information or to get a quote on 28B21 sprockets, please contact us and 1 of our sales team members will be happy to assist you.

28B21 Sprocket Dimensions

  • Sprocket Size: 28B21
  • Tooth Count: 21
  • Pitch Diameter: 298.24mm
  • Stock Bore: 40mm
  • Maximum Recommended Bore: 108mm
  • Hub Dia Diameter (H): 160mm
  • Length Thru Bore (L): 64mm
  • Sprocket W8: 18.19 kG

China roller chain and sprocket 28B21 Sprocket With Stock Bore Best factory supplier  manufacturer With High Quality Cheap sales price cost near me shop  Custom size allowed

China roller chain and sprocket 28B21 Sprocket With Stock Bore Best factory supplier  manufacturer With High Quality Cheap sales price cost near me shop  Custom size allowed

China roller chain and sprocket 28B21 Sprocket With Stock Bore Best factory supplier  manufacturer With High Quality Cheap sales price cost near me shop  Custom size allowed