Specification Brand : Ruland BulletPoint1 : Four beam couplings have higher torque and torsional stiffness than commodity style single beam couplings and are ideal for encoder, tachometer, and other light duty applications BulletPoint2 : Smaller bodies than six beam couplings allow them to fit in confined spaces BulletPoint3 : Zero-backlash and a balanced design for reduced vibration at speeds up to 6,000 RPM BulletPoint4 : Manufactured from 303 stainless steel for increased torque capacity. BulletPoint5 : Hardware exceeds DIN 912 12.9 standards for maximum torque capabilities. Ruland beam couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant ExternallyAssignedProductIdentifier1 : 634529050446 ExternallyAssignedProductIdentifier2 : 0634529050446 ItemName : Ruland PSMR25-9-9-SS 303 Stainless Steel Beam Coupling, 4-Beam Set Screw Style, 9 mm x 9 mm Bores, 25.4 mm OD, 31.8 mm Length ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 5 inches ItemPackageDimensions_Width : 3 inches ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : Ruland Manufacturing Co., Inc. Material : Stainless Steel MaximumRotationalSpeed : 6000 rpm ModelNumber : PSMR25-9-9-SS NumberOfItems : 1 PartNumber : PSMR25-9-9-SS ProductSiteLaunchDate : 2015-10-06T08:00:01.000Z Style : Modern UnspscCode : 31161500