085B21 Sprocket With Stock Bore

This 085B21 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our 085B21 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 085B21 sprockets such as black-oxide coatings and heat-treated hardened teeth, though we often have these specific sprockets with those features already added right off the shelf. Besides the 21 tooth sprocket, we also stock a high-quality 085 roller chain and a wide array of roller chain accessories. For more information or to get a quote on 085B21 sprockets, please contact us and one of our sales team members will be happy to assist you.

085B21 Sprocket Dimensions

• Sprocket Size: 085B21
• Tooth Count: 21
• Pitch Diameter (O): 85.22mm
• Outside Diameter (K): 91.5mm
• Hub Diameter (N): 68mm
• Stock Bore (D): 14mm
• Maximum Recommended Bore: 44mm
• Length Thru Bore (L): 28mm
• Sprocket Tooth Width: 5.9mm
• Sprocket Weight: 0.80 kg