Description:1. The diaphragm coupling has obvious shock absorption, no noise and no wear.2. The transmission efficiency of diaphragm coupling is high, up to 99.86%, especially suitable for medium and high-speed high-power transmission.3. Flexible couplings also are simple structure, light weight and small size, which it is convenient to assembly and disassembly.4. It can accurately transmit the speed without slip, and can be used for the transmission of precision machinery.Note: The adapted shaft diameter tolerance is +0~-0.04mmSpecification:Screw Specifications: M3Color: SilverDiaphragm CouplingLength: 35mmOutside Diameter: 26mmBore Diameter: 6mm to 8mmMax. Torque Range: 2.8N.mMaximum Rotation Speed: 10000 RPMMaterial: Aluminium Alloy and Stainless SteelShaft Fixing Method: ClampingSurface Finish: Oxidation TreatmentWrenchLength: 51mmHexagonal Width: 2.5Material: Carbon SteelPackage Content:1 x Diaphragm Coupling1 x M3 Wrench