For diversified environment and applications we developed catalog constant force springs with material SUS301, by adjusting the parameters like: material thickness, material width and outside diameter, etc, we can achieve different spring dimension and load. So far we are suppling over 40 kinds of catalog constant force springs, please fill in the parameters in the below fields and browse the most suitable catalog constant force springs or checking the specification by filling in the part number searching field,Click on the Search button without input any parameter, it will show you the details of all the catalog springs in this category.