Specification Brand : Martin BulletPoint1 : For use with Martin universal series (ML) or Martin super series (MS) jaw style flexible coupling assembly (sold separately) BulletPoint2 : Nitrile rubber for transferring and absorbing shock load BulletPoint3 : Absorbs shock and misalignment within the coupling assembly for reduced wear on the shaft assembly BulletPoint4 : The product is made of A3 carbon steel. High-frequency quenching treatment of teeth, the surface hardness, wear resistance are significantly improved. The part without quenching retains the original toughness and is easy to further process. It can be processed into different inner diameter sizes according to the requirements of use. BulletPoint5 : Notice: This product is a blank piece and cannot be used directly. The inner hole needs further processing to be fixed. ExternallyAssignedProductIdentifier1 : 697950149028 ExternallyAssignedProductIdentifier2 : 0697950149028 ExternallyAssignedProductIdentifier3 : 00697950149028 ItemName : MARTIN SPROCKET & GEAR INC SRL090/095 COUPLING ItemPackageDimensions_Height : 1.778 centimeters ItemPackageDimensions_Length : 6.096 centimeters ItemPackageDimensions_Width : 5.842 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets Manufacturer : MARTIN Material : NBR Material1 : black_oxide Material2 : carbon steel c45 ModelNumber : a21122300ux0856 NumberOfItems : 1 NumberOfTeeth : 6 PartNumber : SRL090/095 ProductDescription : Features: 1. Chain Sprockets are normally mounted in a fixed position on a fixed shaft. This type A chain sprocket has no hub extension either side. Suitable for short shaft fixing. 2. The chain sprocket should not rotate at a greater speed than is allowable for drive sprockets of the same size. Every roller chain sprocket comes with strong teeth that can latch onto the chain. It is suggested that chain sprockets have at least three teeth in mesh with the chain. 3. The product is made of A3 carbon steel. High-frequency quenching treatment of teeth, the surface hardness, wear resistance are significantly improved. The part without quenching retains the original toughness and is easy to further process. It can be processed into different inner diameter sizes according to the requirements of use. 4. Widely used in industrial transmission and transportation. The inner hole can be processed to meet the needs of different shafts. There is an error of ±2mm in the inner hole, please pay attention before purchasing.