1.Variable diameter spring is the latest design for automobile brake spring. 2. Fatigue lifeaaabove 1000000 cycles

1.Variable diameter spring is the latest design for automotive brake spring.

2.The purpose of variable wire diameter from side to side is to get unique cycle test result. It can easily reach 1000000 cycles.

 3.The synthesis performance such as load, appearance are better than common spring.

4.Now is widely used in BMW, VOLVO etc.

There are two types variable diameter spring

Variable diameter brake spring