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 Our product range also covers locking assemblies (clamping elements/locking device), taper bushes, QD bushes, bolt-on hubs, pto shaft, agricultural gearboxes,torque limiters, shaft collars, motor bases and motor slides, chain & sprocket detachers, chain & sprocket guides, universal joint, rod ends and yokes. As a result, we have become a comprehensive manufacturer in the motion and control field providing an extensive lineup of products with superior durability, environment-friendliness, and quality.25B21 sprocket is a durable, high quality, and precision sprocket with hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don’t. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #25 roller chain & sprocket and sprocket which prevents premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. 25B21 sprockets with a stock bore comes with the standard 1/4″ ID hole with no keyway or set screws and can be easily machine bored to custom sizes. We also offer sprockets with finished bore configurations right off the shelf from stock, and if you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead time and at really great prices.

25B21 Sprocket Dimensions