Linn Gear 1240C9 single strand Type B sprocket for #40 roller chain, 9 teeth, 1/2" pitch, 1.433" pitch diameter. Steel construction with flame-cut hub. Designed for ANSI #40 chain. Made in USA.

Type C Steel Sprockets for No. 1240 Mill Chain

4.063³ Chain Pitch 1 3/4³ Barrel Diameter 1 3/4³ 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 above 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 Champion No. 4, 1240DW, 1244, A1245, X1245, RX1245, R1248

Jeffery 4DD, 124RS, 124RCS, SS124, SS2124+, SS124D, SS124P, IS1242, IS1245, J1245A, 1645AB, IS4014, IS4106, IS4110

Link Belt AP114 Redhead, AP14 Super Hyper, SS123, SS123+, SS124, SS124+, SS124-2-Bar Hyper, SS124-3-Bar Hyper, XXS1240,

LXS1241M, LXS1242, LXS1242M, LXS1245, LXS1245M, XXS1245

Moline MXS124, 1240RX, 1240RXX, MXS1242, MXS1245

Union 1240R, 1240RX, 1240SX, US1242, US1245, 1245SX

Webster S557, S557+

Sprockets of other face widths or tooth numbers as well as those for practically any other chain are readily

Split Mill Chain Sprocket info (PDF)

Specifications