Is there a regulation on the length of the spring?

(1) Free length: The length value of Tension Spring and Compression Spring when both ends are not subjected to external forces. Generally speaking, the free length of Dongguan Spring Factory is independent of the spring function. Unless the enclosed parts at both ends are polished, a relatively loose tolerance range or no strict standard requirements are allowed.

(2) Action length: When the coil spring is tightened or stretched to a certain fixed length, Dongguan Spring Factory should have a reaction force value so that the matching project can be effective.

(3) Free angle: The angle value at which the two legs of a Torsion Spring rotate without external force. Generally speaking, the angle formed by the two legs of a torsion spring in a free state is not easily the same, unless it is necessary in special occasions or allows for a relatively loose tolerance range, otherwise it is not necessary.

(4) Action angle: When the two ends of the torque spring are twisted into a fixed angle in different directions, Dongguan Spring Factory should have a certain reaction load value and torque value to make the supporting project effective.

(5) Spring constant: The reaction force generated per unit length when a tension and compression coil spring undergoes axial deformation under external force. The reaction force generated by the external force of the radial bearing in the torque spring manufacturer at each unit angle during rotation.

(6) Length unit: General mm, European and American inches.

(7) Load unit: The standard force unit is n (Newton) or KGF (kilogram force) GF (gram force).