SPROCKET – “B” TYPE, STEEL, #219 CHAIN 18T 3/4″ BORE, 3/16″ KEYWAY, 5/16-18 SET SCREW
$12.95
Made of case-hardened steel and hobbed teeth, “B” Type Sprockets have a hub on one side only. Unless otherwise noted, “B” type sprockets have two 5/16-18 set screws.