Feature●<b>Price For:</b> Each <b>Outside Dia.</b>: 3.937" <b>Sprocket Bore Type</b>: Fixed Bore <b>Keyseat Size (In.)</b>: 1/4 x 1/8 <b>Item - Roller Chain Sprockets</b>: Roller Chain Sprocket <b>Pitch Dia.</b>: 0.625" <b>Number of Chain Rows</b>: Single <b>ANSI Sprocket Number</b>: 50 <b>Number of Teeth - Sprockets</b>: 18 <b>Material - Sprockets</b>: Steel <b>Number of Teeth</b>: 18 <b>Pitch Dia. (In.)</b>: 0.625 <b>Bore Dia. (In.)</b>: 1-1/4●<b>Set Screw Dia. (In.)</b>: 5/16 <b>Material</b>: Steel <b>Outside Dia. (In.)</b>: 3.937 <b>Hub Dia. (In.)</b>: 2-7/8 <b>Includes</b>: Standard Keyway and (2) Set Screws <b>Sprocket Hub Type</b>: Type B <b>Industry Chain Size</b>: 50 <b>For Use With</b>: Roller Chain <b>Item</b>: Sprocket <b>Bore Dia. - Sprockets</b>: 1-1/4" <b>Length through Bore (In.)</b>: 1 <b>Setscrew Location</b>: One Setscrew Over The Keyway and A Second Setscrew At 90 Degrees <b>Type</b>: Finished Bore●<b>Country of Origin (subject to change)</b>: ChinaDescription Sprocket, Industry Chain Size 50, Number of Teeth - Sprockets 18, Fixed Bore, Bore Dia. - Sprockets 1-1/4 In., Outside Dia. 3.937 In., Single Number of Chain Rows, Material - Sprockets Steel, Pitch Dia. 0.625 In., Type B, Length through Bore (In.) 1, Hub Dia. (In.) 2-7/8, Set Screw Dia. (In.) 5/16, Keyseat Size (In.) 1/4 x 1/8, Setscrew Location One Setscrew Over The Keyway and A Second Setscrew At 90 Degrees , For Use With Roller Chain, Includes Standard Keyway and (2) Set Screws