Specification Brand : Martin BulletPoint1 : For use on series 60 chain, 3/4” pitch provides flexible mounting options BulletPoint2 : Idler sprocket with ball bearings offer reduced friction for longer sprocket life and less drag on the system BulletPoint3 : Can be used to change the direction of chain motion or to adjust chain tension BulletPoint4 : Varying numbers of teeth and stock bore sizes offer deployment flexibility BulletPoint5 : High carbon steel for strength and durability ExternallyAssignedProductIdentifier1 : 697950340555 ExternallyAssignedProductIdentifier2 : 0697950340555 ItemName : Martin Roller Chain Sprocket, Hardened Teeth, Idler, Type C Hub, Single Strand, 60 Chain Size, 0.75" Pitch, 12 Teeth, 0.625" Bore Dia., 3.25" OD, 0.459" Width ItemPackageDimensions_Height : 2.032 centimeters ItemPackageDimensions_Length : 9.144 centimeters ItemPackageDimensions_Width : 9.144 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets Manufacturer : MARTIN Material : Carbon Steel ModelNumber : 16A13 NumberOfItems : 1 NumberOfRows : 1 NumberOfTeeth : 12 PartNumber : 60BB12H 5/8 ProductSiteLaunchDate : 2010-09-29T00:00:01-07:00 Size : 60 Style : Idler UnspscCode : 31171900