Specification Brand : Ruland BulletPoint1 : Precision honed bores on straight bore couplings for superior fit and torque transmission BulletPoint2 : Forged screws are used as opposed to broached for increased durability BulletPoint3 : Keyways are used for additional torque transmission capabilities and to prevent slippage on the shaft BulletPoint4 : 1215 lead-free steel with proprietary black oxide finish for increased holding power and corrosion resistance.Hardware tests beyond ANSI standards for maximum torque capabilities BulletPoint5 : Ruland rigid couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant ExternallyAssignedProductIdentifier1 : 634529076392 ExternallyAssignedProductIdentifier2 : 0634529076392 ExternallyAssignedProductIdentifier3 : 00634529076392 ItemName : Ruland SCC-18-18-F Set Screw Rigid Coupling with Keyway, Black Oxide Steel, 1-1/8" Bore A Diameter, 1-1/8" Bore B Diameter, 1-7/8" OD, 3-1/8" Length, 1/4" x 1/4" Keyway Width ItemPackageDimensions_Height : 3.048 centimeters ItemPackageDimensions_Length : 8.128 centimeters ItemPackageDimensions_Width : 3.556 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : Ruland Manufacturing Material : Steel ModelNumber : SCC-18-18-F NumberOfItems : 1 PartNumber : SCC-18-18-F ProductDescription : ' Rigid Shaft Coupling, Set Screw Type, Bore Dia 1 1/8 In, Overall Length 3 1/8 In, Outside Dia 1 7/8 In, Clearance Dia 1.875 In, Screw Size 3/8-16 In, Keyway Width 1/4 In, Max Torque 1200 In-Lb, Black Oxide Steel ' ProductSiteLaunchDate : 2011-10-28T15:53:42.364Z Size : 1-1/8 inches StreetDate : 2017-05-15T00:00:01Z UnitCount : 1