rmp is a unit of hard disk rotation speed, which is the rotation speed of the motor spindle in the hard disk, that is, the maximum number of revolutions that the hard disk platter can complete in one minute. The speed of rotation is one of the important parameters to mark the grade of hard disk, and it is one of the key factors to determine the internal transmission rate of hard disk, which directly affects the speed of hard disk to a great extent.
new technology:
the rotational speed changes with the improvement of hard disk motor, and now the traditional ball bearing motor has been completely replaced by Fluid dynamic bearing motors. Liquid bearing motor is usually used in precision machinery industry. It uses mucous membrane liquid oil bearing and oil film instead of ball.
This can avoid direct friction between metal surfaces and minimize noise and temperature. At the same time, the oil film can effectively absorb vibration and improve the seismic capacity. It can reduce wear and prolong service life.