Parameters of compression spring with rectangular section
Table 12-2-37
| Item | Formulas and data | ||||||||||||||
| Rotation ratio C | C=D/a,Where a is the length of the side of the rectangular hiding surface material perpendicular to the spring axis
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| b/a and a/b values | When b>a,b/a<4, and when a>b,a/b>4 rectangular section cylindrical spiral compression springs, due to manufacturing difficulties, internal stress is too large, it is recommended not to use. Therefore, the following recommendations are recommended When b>a, select the value b/a>4 When a>b, choose a value with a/b<4 |
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| Working limit stress τj | Class I load :τj≤1.67τp Class II load :τj≤1.26τp Class III load :τj≤1.12τp |
