Product size material&machining The pulley is formed through Welding Forming, using material that meets the American standard ASTM 1020, resulting in a product that is sturdy and durable. Top 10 Woens Padded Cycling Underwear of 2022 - Katynel This V-Groove Drive pulley is a general Sheave for power transmission, which is applied to compressors,motors, lawn mower,snow blowers and other power transmission devices. Inside Diameter: 3/4 inch,Standard Keyseats(3/16x3/32),Screws quantity:2,1 x Wrench Variable Speed V Belt Pulleys: These pulleys are designed to provide variable speed operation by adjusting the pulley diameter, allowing for precise control... V Belt Pulley 3/4 Inch Bore AB550-3/4 Single Goove Web Sheaves, V Belt Pulley 5.5" OD 3 Sheave Ratio Calculator There is a hub, with two screw holes on it. CMFG BK55-7/8,BK55X7/8 v Belt Pulley,5.25'' inch OD 7/8 Inch Bore The heavy duty steel is designed to be more durable The heavy duty steel is designed to be more durableProduct size 1.outside diameter:5.5 inch,1 Groove 2.3/4 inch bore,Standard Keyseats(3/16x3/32) 3.Durable: 1020 steel, solid construction, 4.Standard V-Belt Pulley: For V-Belt Section A,B,5L,4L,AX,BX belt Other information This part is Zinc-plated or Painted to prevent rust This V-Groove Drive pulley is a general Sheave for power transmission, which is applied to compressors,motors, lawn mower,snow blowers and other power transmission devices Pulley outside diameter:5.5 inch,1 Groove One is above the keyway, and the other is at a 90° position.