Specification Brand : Martin BulletPoint1 : For use with series 41 chain, 1/2” pitch for driver or driven sprocket applications BulletPoint2 : Type A sprocket offers flexibility in mounting arrangements BulletPoint3 : Shaft diameter size from 5/8” to 15/16” for a variety of applications BulletPoint4 : Can be used with large-diameter shafts, and drilled for mounting or welded directly to other apparatuses BulletPoint5 : High carbon steel for strength and durability ExternallyAssignedProductIdentifier1 : 697950008974 ExternallyAssignedProductIdentifier2 : 0697950008974 ItemName : Martin Roller Chain Sprocket, Reboreable, Type A Hub, Single Strand, 41 Chain Size, 0.5" Pitch, 21 Teeth, 0.625" Bore Dia., 3.62" OD, 0.227" Width ItemPackageDimensions_Height : 0.508 centimeters ItemPackageDimensions_Length : 7.874 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets Manufacturer : MARTIN Material : Carbon Steel ModelNumber : 41A15 NumberOfItems : 1 NumberOfRows : 1 NumberOfTeeth : 21 PartNumber : 41A21 ProductSiteLaunchDate : 2010-10-01T00:00:01-07:00 Size : 41 StreetDate : 2017-05-15T00:00:01Z Style : Reboreable SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 31171900