Hudson bearings 1 stainless steel ball carbon steel low profile flying saucer ball transfer one inch stainless steel main ball rotating on stainless steel 1/8 inch support ball in a precision formed carbon steel housing. Hudson bearings is an innovative domestic manufacturer of ball transfers. flange-mounted units feature a hardened and zinc plated mounting cup and a foam seal. housing options include stainless steel with option for felt seal. main and support ball options include stainless, nylon, phenolic, and delrin. flange mounted transfers can be used in either ball up or down position.