Specification Brand : Aopin BulletPoint1 : Features: High-precision gear machine integrated molding, tempering heat treatment hardening treatment, high strength, durability, long life; BulletPoint2 : Application: Mainly used for B-type chain power transmission, Pitch Size: 1/2"; used in milling machines, drilling machines, wood machinery, agricultural equipment, etc. BulletPoint3 : Installation: Roller sprocket adopts British bore diameter, set screws and key blocks for connection, suitable for light or heavy load power transmission. BulletPoint4 : Material: C45 carbon steel, the teeth are hardened, the surface is blackened and oxidized, higher strength and durability. BulletPoint5 : Package: 1 x Chain Sprocket, 2 x Set Screws ExternallyAssignedProductIdentifier1 : 0605129151505 ExternallyAssignedProductIdentifier2 : 605129151505 ExternallyAssignedProductIdentifier3 : 0097039298751 ExternallyAssignedProductIdentifier4 : 0097039327741 ExternallyAssignedProductIdentifier5 : 00097039327741 ItemName : #40 Hardened Roller Sprocket B-Type, Single Strand 1/2" Pitch, Hole Dia 5/8", 11 Tooth,Blackened Treatment, with Fixed Set Screws. ItemPackageDimensions_Height : 25 millimeters ItemPackageDimensions_Length : 50 millimeters ItemPackageDimensions_Width : 50 millimeters ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets Manufacturer : Aopin-Hardware Material : carbon_steel ModelNumber : a22010500ux0541 NumberOfItems : 1 NumberOfRows : 1 NumberOfTeeth : 11 PartNumber : 705-07 ProductDescription : Features: High-precision gear machine integrated molding, tempering heat treatment hardening treatment, high strength, durability, long life; Application: Mainly used for B-type chain power transmission, Pitch Size: 1/2"; used in milling machines, drilling machines, wood machinery, agricultural equipment, etc. Installation: Roller sprocket adopts British bore diameter, set screws and key blocks for connection, suitable for light or heavy load power transmission. Material: C45 carbon steel, the teeth are hardened, the surface is blackened and oxidized, higher strength and durability. Package: 1 x Chain Sprocket, 2 x Set Screws