Aluminum cores ensures precise 5mm bore alignment and robust torques transmission, while knurled surfaces enhances grip during manual adjustments for industrial machinery maintenance, laboratory equipment upgrades, and workshop projects demanding vibrations resistant power transmission solution construction maintains dimensional stability under heavy loads, ensuring consistent in high speed applications and precise driven environments Designed for mechanical engineers, DIYer enthusiasts, and maintenance technicians requiring reliabled platform motor compatibility in workshop or field applications The 5mm motor shaft adapter features universally compatibility with precise engineered metal construction, enabling tool less installation for seamless motor conversions across multiple device types, Manufacturer: Oxxggkao