The core performance of VU and VSU series originates from the optimized four-point contact ball raceway system. Precision manufactured steel balls cooperate with heat-treated gothic arch raceways to form four effective load-bearing contact points. This structural feature enables the bearings to cope with compound operating loads, including axial tension and compression, radial pressure and dynamic overturning moments. Even under frequent cyclic rotation and variable load conditions, the uniform stress distribution greatly reduces mechanical wear, rotational shake and fatigue loss, maintaining long-term running stability and positioning consistency.

The gearless design is the most distinctive feature of VU / VSU series bearings. Without integrated gear teeth, the bearing ring maintains a smooth and complete structural surface, completely avoiding gear backlash, meshing noise and tooth surface abrasion that exist in geared slewing bearings. This zero-backlash rotary characteristic delivers ultra-smooth motion output. Meanwhile, the gear-free structure allows equipment designers to freely configure independent drive methods such as hydraulic drive, servo motor direct drive and belt transmission, greatly improving design flexibility for special mechanical structures and precision rotary equipment.