They are used when a strong wear resistance with a very small closed parcel is required. In addition to being very reliable, the sewn circular bellows do not involve equipment costs and ensure high resistance to mechanical and dynamic stress. They are resistant to coolants and oils and have a minimum internal diameter starting from 20 mm. The sewn circular bellows are suitable for high temperatures and can be made with an external diameter of any size according to the needs. They are available with guide bushings and reinforcement rings. The sewn circular bellows are the ideal solution for those looking for optimal protection with a good quality / price ratio.