A-W371147-AI Shield Bearing KitOne New Aftermarket Replacement Shield Bearing Kit for Walterscheid PTO Driveshafts This aftermarket replacement Shield Bearing Kit is designed for use with Walterscheid PTO driveshaft safety shield assemblies used on agricultural equipment. The nylon shield bearings mount at the ends of the PTO guard tube, allowing the outer shield to remain stationary while the driveshaft rotates a critical safety function on PTO driven implements such as rotary