What type of coupling employs a pliable material that can stretch or flex?

Elastomeric couplings are designed to transmit torque while accommodating misalignment and absorbing shock loads. They utilize a pliable material, typically rubber or other elastomers, which allows the coupling to stretch or flex. This flexibility is crucial in reducing vibrations and protecting both the coupling and connected equipment from wear and damage that would otherwise occur due to misalignment or sudden impact forces. The ability to flex also enhances the coupling's effectiveness in handling fluctuating loads, which is essential in dynamic operating conditions. This design feature makes elastomeric couplings an ideal choice for many applications where reliability and durability are critical.