internal-toothed slewing ring / ball / single-row / for public works, excavators and cranes

The Four-Point Contact Ball Slewing Rings are specifically designed to provide a good quality performance and functionality. The rings are built with single row balls with a standard bearing raceway and four points of contact in between the two. The high quality rings are ideally constructed with a a zero, external and internal gears to ensure a well produced device for easier usage. They are basically used for several applications involving cranes,excavators,construction machines and more.