Keyless locking device is a mechanical device that achieves keyless connection between the shaft and the hub by generating frictional pressure through high-strength bolts, and can replace traditional key connection or interference fit. Its core functions include the followings. Transmitting torque and axial force or combined loads. Achieving high-precision centering to avoid stress concentration caused by keyway processing. It provides overload protection and automatically slips when overloaded to protect the equipment. Keyless locking devices are widely used in the following industrial scenarios. 1. Heavy machinery such as mining equipments and wind turbine generators. 2. Precision equipment likeCNC machine tool spindles and automated production lines. 3. General drives like fans, conveyor belt drive rollers, pump sets, etc. 4. Special environment like damp and corrosive working conditions in which stainless steel material is required. Keyless locking devices have the following product features. Easy installation which means the assembly is completed simply by tightening the bolts without heating or cooling. High reliability without relative motion wear and with long service life. Supporting the adjustment of hub position with easy maintenance ability. Interchangeability with standardized design such as GB/T 28701-2012 which supports series use. Strong environmental adaptability for some models adopting nano-coating or anti-loosening bolts to enhance weather resistance.