Specification Brand : Martin BulletPoint : Fits Stihl 070 BulletPoint1 : Single strand sprocket with one set of teeth around the circumference for applications where a single chain can support the torque and load BulletPoint2 : Pitch of 1 inch for size 80 chains BulletPoint3 : Sprocket bore and hub with QD fittings for inserting and locking bushings into place BulletPoint4 : Type B sprocket with a hub projection on one side to accommodate various types of bushings to help prevent sprocket from slipping on the shaft BulletPoint5 : Sprocket teeth help prevent slipping and binding to avoid power loss in assemblies Color : Black Oxide Configuration : Number of Teeth:11 ExternallyAssignedProductIdentifier1 : 697950021355 ExternallyAssignedProductIdentifier2 : 0697950021355 ExternallyAssignedProductIdentifier3 : 00097039375766 FitType : Vehicle Specific GpsrSafetyAttestation : 1 IncludedComponents : JT Sprockets JTF1552.11 11T Steel Front Sprocket ItemName : Martin Roller Chain Sprocket, QD Bushed, Type B Hub, Single Strand, 80 Chain Size, For Sf Bushing, 1" Pitch, 42 Teeth, 2.9375" Max Bore Dia., 13.944" OD, 4.625" Hub Dia., 0.575" Width ItemPackageDimensions_Height : 1.25 inches ItemPackageDimensions_Length : 13.94 inches ItemPackageDimensions_Width : 13.94 inches ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets LegalComplianceCertifications : CARB Compliance Certificate Manufacturer : MARTIN Material : Carbon Steel ModelName : JTF1552.11 ModelNumber : H60BTL17 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfRows : 1 NumberOfTeeth : 42 OemEquivalentPartNumber : 351352-006 PartNumber : 80SF42 ProductDescription : OEM Oregon Part Number 108818X