Ruian Jutai spring washer specializing in the production of Jutai spring washer, wave spring washer, saddle spring washer, stainless steel spring washer.
1 Spring wire diameter d: the diameter of the wire used to make the spring.
2 Spring outside diameter D: indicates the maximum outside diameter of the spring.
3 Spring inner diameter D1: specifies the minimum outside diameter of the spring.
4 Middle diameter D2: indicates the average diameter of the spring. They are calculated by the formula D2 = (D+D1) ÷2 = D1+d = d-d
5t: In addition to the support ring, the axial distance of the corresponding points on the middle diameter of the two adjacent rings of the spring is called the pitch, which is expressed by t.
6 Effective turns n: The number of turns the spring can maintain the same pitch.
7 Support circle number n2: In order to make the spring in the work of uniform force, to ensure that the axis of the vertical end, manufacturing, often the two ends of the spring and tight. The number of tight turns only plays a supporting role, called the support circle. Generally there are 1.5T, 2T, 2.5T, and 2T is commonly used.
8 Total number of turns n1: The sum of the number of effective turns and the support circle. So n1 is equal to n plus n2.
9 Free height H0: the height of the spring without external force. It can be calculated by the following formula: H0=nt+(N2-0.5)d=nt+1.5d (n2=2)
10 Spring development length L: the length of the steel wire required for winding the spring. L≈n1 (Fral D2)2+n2 (press spring) L= Fral D2 n+ hook development length (spring)
11 Spiral direction: there are left and right rotation, commonly used right rotation, the drawing does not indicate the general use of right rotation.
12 spring winding ratio; The ratio of middle diameter D to wire diameter d
