The MIGRA 1A constant force spring is a “tension spring”, i.e. the strip is pulled off the storage reel tangentially in a straight line. If the outer spring end is fastened to a fixed element, the closely spaced spring coils can transfer a constant compressive force without any additional mounting.
These formulas enable an initial theoretical calculation of the spring.
However, the final spring design and its functionality must always be tested and confirmed using samples.
The KERN-LIEBERS group of companies calculates the optimum spring dimension on the basis of the data provided by the prospective customer with a spring calculation program developed specifically for this purpose. Our aim is to offer the optimum spring type and spring dimensions in terms of both functionality and cost.
The MIGRA 2A constant force spring is a “drive spring”, i.e. the strip that is pulled off the supply roller is wound back onto a larger work roller in the opposite direction.
These formulas enable an initial theoretical calculation of the spring.
However, the final spring design and its functionality must always be tested and confirmed using samples.
The KERN-LIEBERS group of companies calculates the optimum spring dimension on the basis of the data provided by the prospective customer with a spring calculation program developed specifically for this purpose. Our aim is to offer the optimum spring type and spring dimensions in terms of both functionality and cost.
