Specification Brand : Martin BulletPoint1 : For use with 2040/C2040 chain, this series has standard rollers for conveyor or drive series, for a variety of application needs BulletPoint2 : Type B hubs for a stable and secure attachment and can be modified to suit wide variety of applications BulletPoint3 : Shaft diameter options include 1/2, 5/8, and 3/4 inch for a variety of application needs BulletPoint4 : Variety of number of teeth and outside diameter options, for flexibility in usage BulletPoint5 : High carbon steel for high strength and durability ExternallyAssignedProductIdentifier1 : 697950044149 ExternallyAssignedProductIdentifier2 : 0697950044149 ItemName : Martin Roller Chain Sprocket, Reboreable, Type B Hub, Double Pitch Strand, 2040/C2040 Chain Size, 1" Pitch, 13 Teeth, 0.5" Bore Dia., 2.33" OD, 1.5625" Hub Dia., 0.284" Width ItemPackageDimensions_Height : 2.032 centimeters ItemPackageDimensions_Length : 6.858 centimeters ItemPackageDimensions_Width : 6.604 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets Manufacturer : MARTIN Material : Carbon Steel NumberOfItems : 1 NumberOfTeeth : 13 PartNumber : 2040B13 ProductSiteLaunchDate : 2010-09-29T08:00:01.000Z Size : 2040/C2040 Style : Reboreable UnspscCode : 31171900