Specification Brand : Ruland BulletPoint1 : Precision honed bores on straight bore couplings for superior fit and torque transmission.Does not mar the shaft BulletPoint2 : Proprietary Nypatch anti-vibration hardware prevents galling, maintains high holding power, and allows for multiple screw insertions BulletPoint3 : 2024 high strength aluminum for light weight and low inertia BulletPoint4 : Hardware tests beyond DIN 912 12.9 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 BulletPoint6 : 2. It runs smoother, quieter and more efficient. BulletPoint7 : 3. The plum blossom flexible coupling is well-made, with high torsion, high rigidity, excellent shock resistance, flexible response and durability. Color : One Color Department : Unisex Adult ExternallyAssignedProductIdentifier : 7635668505203 ExternallyAssignedProductIdentifier1 : 634529013663 ExternallyAssignedProductIdentifier2 : 0634529013663 ExternallyAssignedProductIdentifier3 : 00634529013663 ItemName : Ruland MCLX-12-12-A One-Piece Clamping Rigid Coupling, Aluminum, Metric, 12mm Bore A Diameter, 12mm Bore B Diameter, 29mm OD, 45mm Length ItemPackageDimensions_Height : 1.016 centimeters ItemPackageDimensions_Length : 8.636 centimeters ItemPackageDimensions_Width : 3.81 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : clamp-on-couplings Manufacturer : Ruland Manufacturing Material : Aluminum ModelName : OSSIL ModelNumber : MCLX-12-12-A NumberOfItems : 1 NumberOfPieces : 1 PartNumber : MCLX-12-12-A ProductDescription : 1. Plum blossom flexible coupling is made of reliable aluminum alloy, with resistance, long life and easy installation. 2. Widely used in servo motors, spindles, stepper motors, etc.