Specification Brand : Martin 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 15.88 millimeters for size 10B chains BulletPoint3 : Sprocket bore has tapering grooves for inserting and locking into place a taper bushing that fits the diameter of the shaft 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 hardened by electrical induction or flame to increase teeth durability against wear, lengthening the service life of the sprocket ExternallyAssignedProductIdentifier1 : 697950409634 ExternallyAssignedProductIdentifier2 : 0697950409634 ItemName : Martin Roller Chain Sprocket, Hardened Teeth, Taper Bushed, Type B Hub, Single Strand, 10B Chain Size, For 2012 Bushing, 15.88mm Pitch, 30 Teeth, 50.8mm Max Bore Dia., 160.57mm OD, 90.47mm Hub Dia., 9.17mm Width ItemPackageDimensions_Height : 2.794 centimeters ItemPackageDimensions_Length : 16.256 centimeters ItemPackageDimensions_Width : 16.256 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets Manufacturer : MARTIN Material : Carbon Steel ModelNumber : 10BTB30H NumberOfItems : 1 NumberOfRows : 1 NumberOfTeeth : 30 PartNumber : 10BTB30H ProductSiteLaunchDate : 2010-09-29T08:00:01.000Z Size : 10B Style : Taper Bushed UnspscCode : 31171901