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Lightweight Carbon Fiber Motor Rotor Sleeve with Excellent Burst Resistance. Customizable Dimensions: Diameter 10mm-300mm and Length up to 10000mm are fully customizable. High Burst Resistance: Composite structure provides superior burst resistance for high-RPM stability. High Strength Material: Polyacrylonitrile-based carbon fiber with 4900Mpa tensile strength. Low Weight Design: Density of 1.6-1.8g/cm3 ensures lightweight performance for motors. Free Sample Available: Free samples provided; buyer only covers shipping costs. Low MOQ Support: Low minimum order quantity; 1 piece is acceptable for testing. OEM Service: OEM manufacturing available based on customer drawings or specs.