Specification Brand : Ruland BulletPoint1 : Precision honed bores for superior fit and torque transmission. Does not mar the shaft. Keyways are used for additional torque transmission capabilities and to prevent slippage on the shaft. BulletPoint2 : Two-piece styles have opposing hardware for a balanced design. BulletPoint3 : Proprietary Nypatch anti-vibration hardware prevents galling, maintains high holding power, and allows for multiple screw insertions. Nypatch significantly reduces installation time as no additional screw treatment is needed prior to use. BulletPoint4 : Made from 1215 lead-free steel with proprietary black oxide finish for increased holding power and corrosion resistance. Machined to a fine burr free finish. BulletPoint5 : Hardware exceeds ANSI standards for maximum torque capabilities. Ruland rigid couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant. ExternallyAssignedProductIdentifier1 : 634529022566 ExternallyAssignedProductIdentifier2 : 0634529022566 ExternallyAssignedProductIdentifier3 : 00634529022566 ItemName : Ruland SPC-18-16-F Two-Piece Clamping Rigid Coupling with Keyway, Black Oxide Steel, 1-1/8" Bore A Diameter, 1" Bore B Diameter, 1-7/8" OD, 3-1/8" Length, 1/4" x 1/4" Keyway Width ItemPackageDimensions_Height : 8.636 centimeters ItemPackageDimensions_Length : 7.112 centimeters ItemPackageDimensions_Width : 4.064 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : Ruland Manufacturing Material : Black Oxide Steel ModelNumber : SPC-18-16-F NumberOfItems : 1 PartNumber : SPC-18-16-F ProductDescription : 'Rigid Shaft Coupling, Two Piece Clamp Type, With Keyway, Bore Dia 1 1/8 x 1 In, Overall Length 3 1/8 In, Outside Dia 1 7/8 In, Clearance Dia 2.182 In, Screw Size 1/4-28 In, Keyway Width 1/4 x 1/4 In, Max Torque 4400 In-Lb, Black Oxide Steel' ProductSiteLaunchDate : 2011-10-28T15:53:50.087Z Size : 1 inches StreetDate : 2017-05-15T00:00:01Z UnitCount : 1