The Wiper | Rotary Transmission (VKS 95, VK 100) is the OEM rotating shaft assembly that transmits motor torque to the wiper basket inside the evaporator body on VKS 95 and VK 100 wiped-film distillation systems. Manufactured to precise tolerances, it ensures smooth, concentric rotation of the wiper system while maintaining vacuum integrity at the rotating shaft seal. An OEM VTA replacement part; replace during major overhauls or when vibration or seal leakage is detected.