A.N.S.I. No. 25 Chain - Type B Sprockets - Hub One Side - Mandrel Bore - 1/4" Pitch

Catalog # 25B40

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Pitch Diameter Maximum Bore Stock Bore Hub Diameter Length Through Bore Sprocket Weight
3.187 1.375" .500" 2.00" .830" .70lbs

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

(H) indicates sizes available with or without hardened teeth. All other sizes available with hardened teeth as an alteration.