What does an electric screwdriver, torque, 3NM mean?
Torque screwdriver function principle: refer to preset type torque screwdriver can preset torque value, when the fastening is screwed in part to a predetermined torque value when the clutch disengages the screwdriver, the issue of "click, click, click......" Sounds that can be sensed by the hand. This will not exceed the pre-set limit even if the force is continued.
The torque is equal to the cross product of the radial vector and the force. In brief, a torque is a torsion force applied to an object such as a bolt or a flywheel. For example, tighten the bolt or nut with the opening of the wrench, and then turn the wrench, which produces torque to turn the bolt or nut. According to the international system of units, the unit of torque is Newton meter. The connection quality of the torque screwdriver fasteners directly affects the quality of the use of various instruments, meters, electromechanical equipment, household appliances, etc., to the reliability of these products. Therefore, torque, screwdriver and other torque tools in industrial production has gradually been used more and more.
In physics, the tendency of an object to rotate around a rotating axis or a fulcrum is called a moment (torque). Moment of rotation is also called torque. The torque can change the rotational motion of an object. Pushing or pulling involves force, while torsion involves torque.
The torque in physics is the value of the moment, is the product of the force and force arm, the international unit is N*m. NM
The electric screwdriver torque 3N.M means that the torque applied by the screwdriver to the tightened screw is 3 cows. Once this torque is exceeded, the twist will automatically slip. This tool is usually used for precise screw fixation.
