Linn Gear H78C12 flame-cut sprocket for H78 roller chain. Single strand Type C hub with 12 teeth. Unhardened steel construction. Made in USA.

Type C Steel Sprockets for No. H78 Mill Chain

2.609³ Chain Pitch 7/8³ Barrel Diameter 7/8³ Sprocket Face Width

Stock bores are nominal and must be re-bored even though bore desired is

same size as listed stock bore.

Listed maximum bore is with set screw at angle to keyway.

Stock sprockets may also be used with the following chains or others having the same pitch, barrel diameter and width; however all may not clear standard hub on 6 and 7 tooth sprockets due to variations in side bars.

Chain Belt H74, WR78, WH78, H79, 188, S188, 578, R588, RR588, R778, RR778, 988, 1578

Jeffrey H74, H76, WS78, H79, C188M, 488, JS880, JS882, IS881, IS886, IS887, 1587AC, 6188M, 6388J

Link Belt H74, C78, H79, C188, SS188, SS388, 488, SS578, 788, LXS881, LXS882, LXS886, LXS887

Moline H74, 88, C188, 488

Union 87R, 88, 188, C188, 218RX, US278, US278R, 517R, 517RX, 578R, 588R, 588RX, US881, US882

Webster H74, 78, 88, SS88, SS88+, 188, ZW188E, S517

Sprockets of other face widths or tooth numbers as well as those for practically any other chain are readily available and all can be furnished with hardened teeth. Please inquire for information and delivery.

Split Mill Chain Sprocket info (PDF)

Specifications