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. ISO 9001:2000 & AS 9100B certified custom manufacturer of roller chain & sprockets. Specifications of roller chain & sprockets include 0.1475 in. to 0.3750 in. pitch, 5.9 in. to 35.4 in. length, 180 lbs. to 1529 lbs.10sile load capacity & 0.035 lbs. to 0.276 lbs. w8/ft.78C21 sprocket is a 21 tooth cast construction sprocket with a C-Hub (hub on both sides). This sprocket is in the 78 series of engineer class sprockets. It can be supplied with a stock plain bore, finished bore with key-way and set screws, or as an idler sprocket configuration. This sprocket will work with chain & sprocket sizes H78, H74, H79, 188, R588, R778, 87R, IS881, 81X, 81XH, 81XHH/ 81XHD, 488, SS188, C188, and 882.
78C21 Dimensions
- Tooth Count: 21
- Pitch Diameter: 17.50″
- Style: C
- Hub Diameter: 6.50″
- Length Thru Bore: 5.38″
- Maximum Bore: 4.06″
- Tooth Face at Pitch Line: 0.937″
- Roller Diameter: 0.875″
- Sprocket W8: 79.0 LBS
ept Roller Chain & Sprocket and Sprockets always strives to provide the industry leading service we are known for, as well as competitive and fair prices. Besides sprockets we also offer a full line of roller and engineer class chain & sprockets, motors with gear reducers, v-belts, pulleys, and a wide variety of other industrial power transmission products. For more information or to get a quote on 78C21 sprockets or any other products, please contact our customer support team and we will be happy to assist you.


