Dodge Sheave, Arm Type D3, QD Bore Type, 7/16 to 2-5/8 in Bore Dia, 19 in Outside Dia, 18.95 in, 2 Grooves, 1.09 in Face Width, For Use With: 3V Cross Section Belts, Cast Iron, Gray Isolates shock loads and vibrationMinor misalignment capabilityDrive ratios of 6:1 or more possibleLow maintenanceNo lubrication requiredTypically 95% efficiency can be obtained