Spirol offers guide to compression limiters(03/01/2012)
Compression limiters protect the plastic components of an assembly from the compressive loads generated by the tightening of bolts. As the bolt is tightened the plastic compresses and the stress in the plastic increases until the head of the bolt comes into contact with the compression limiter. The compression limiter and plastic will compress at the same rate with the former absorbing additional clamping loads, without increased stress in the plastic material.