Specification Brand : REED Instruments BulletPoint : Price for 12 pcs BulletPoint1 : The shaft coupling has bigger outer diameter, so with higher torque, higher rigidity, good vibration resistance, flexible response and durability in removes stress between the motor and driving components BulletPoint2 : Material: Using Aviation Aluminum with corrosion resistance High Hardness, High Precision, Anodized Surface Treatment, Strong and Durable.Spider Material (Elastomer) Uses T-PUR, Longer Service Life BulletPoint3 : Super Torque: Can Absorb Vibration, Appropriate a Large Torque Transmission.High Hardness,Durable,and Excellent Response,Not Easy to Loosen BulletPoint4 : Vibration-damping: Flexible Spider Couplings Offset Angular, Radial and Axial Shaft Displacement Within Defined Ranges. The Elastomer Dampens Shock and Torsional Vibrations in The Drive Train BulletPoint5 : Wide Range of Usage: Flexible Couplings is Suitable to Offset Axial, Radial and Angular Displacements and Dampen Vibrations and Torque Shocks for 3D Printer DIY Encoder CNC Router Machine Servo Stepped Motor and Engraving Drilling Milling Machine Color : One Color ExternallyAssignedProductIdentifier : 7623654725766 ItemName : Reed R8890-FOAM, Replacement Foam for R8890 Hard Carrying Case, Pack of 12 pcs ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 12 ItemTypeKeyword : mechanical-component-equipment-cases Manufacturer : REED Instruments Material : Metal ModelNumber : Lyofeon NumberOfItems : 12 NumberOfPieces : 1 PartNumber : R8890-FOAM ProductDescription : Replacement Foam for R8890 Hard Carrying Case ProductSiteLaunchDate : 2018-04-23T13:11:29.963Z Size : 6x10 UnspscCode : 60131500