Roller Grips - Self Tightening
Self Tightening Eccentric Roller Grips are used for sample materials with high elongation such as elastomers and plastics. These types of grips are also commonly referred to as eccentric roller grips or cam grips. Other softer type materials like wood also use these self tightening tensile grips. There are two main types. The first only has one spring-actuated roller cam that presses against a flat metal surface. The other variation is not as popular and uses two rollers and is designed so that the strain and tightening force on the sample is symmetrical and balanced.
