Specification Brand : Ruland BulletPoint1 : Ruland oldham couplings have a zero-backlash balanced design for reduced vibration at speeds up to 4,500 RPM. BulletPoint2 : Can accommodate high amounts of parallel misalignment (up to 10% of the hub OD). Acts as a mechanical fuse stopping power transmission during a torque overload. BulletPoint3 : User can combine clamp or set screw hub with inch, metric, keyed, or keyless bore for a high level of customization. Proprietary hub machining process for smooth interaction between the hub and disk allowing for significantly longer life BulletPoint4 : Made from high strength 2024 aluminum with a black anodized finish for light weight and low inertia. BulletPoint5 : Hardware exceeds DIN 912 12.9 standards for maximum torque capabilities. Ruland oldham couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant. ExternallyAssignedProductIdentifier1 : 634529059500 ExternallyAssignedProductIdentifier2 : 0634529059500 ExternallyAssignedProductIdentifier3 : 00634529059494 ItemName : Ruland MOCT41-20-A Oldham Coupling Hub, Clamp Style, Black Anodized Aluminum, 20mm Bore, 41.3mm OD, 50.8mm Length ItemPackageDimensions_Height : 0.635 centimeters ItemPackageDimensions_Length : 7.112 centimeters ItemPackageDimensions_Width : 4.572 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : clamp-on-couplings Manufacturer : Ruland Material : Aluminum ModelNumber : MOCT41-20-A NumberOfItems : 1 PartNumber : MOCT41-20-A ProductSiteLaunchDate : 2014-09-06T09:07:52.036Z UnitCount : 1 UnspscCode : 31163000