Description: In solid mechanics, in the field of rotordynamics, the critical speed is the theoretical angular velocity that excites the natural frequency of a rotating object, such as a shaft, propeller, leadscrew, or gear. ; Name: crit. speed
Description: Speed of rotation at which the frequency of vibration (or its multiples) corresponds to the rotor resonant (lateral or torsional) ; Name: Critical speed
Description: Internationally applied 4 to 6-digit coding of classes of goods as defined by the Harmonized System (HS) of the World Customs Organization (WCO); Name: HS-Code of the WCO