Internal guides are plastic elements used to provide additional stiffness and support to non-vertical bellows. These plastic supports are designed to prevent the bellows from contacting the internal diameter or surface that the bellows protect. Internal guides for round bellows are typically mounted on the inside and may increase the closed dimension of the bellows. Non-circular internal guides are sometimes used to support long horizontal way covers. These guides are fitted between sewn convolutions.
Screw Jacks