Specification:Name: Plum Shaft CouplingMaterial: Aluminum Alloy 7075Operating Temperature: -40℃~100℃Outer Diameter(D): 40mmLength(L): 50mmBore: 8-22mm (The size of the bore at either ends can be matched at will)E.g.: 8x10 (8mm inside gap on one side, 10mm internal gap on the different side)Application Channels: Machine tools, lifting platforms, etc.Features:1. Aluminum alloy material all with 7 sequence aviation aluminum 7075 aluminum, tight structure, excessive power corrosion resistance, good mechanical properties.2. The middle elastomer materials is polyurethane, with hardness 98SH.A, the provider life is 3-5 years.3. All the aluminum is strong aluminum bar (seamless) processing, very best quality.Package :Packing : Plastic bag / Carton box.Quantity : According for your Choose!