POLYSULFONE ROD This RFQ was sourced on www.MFG.com in USA for Centerless Grinding I need a .375" Dia Polysulfone rod grouond to .253/.250". There is a Straightness tolerance of .003" over a 3.5" long part. Buyer Information Industry City/Region , Virginia Country USA RFQ RFQ Number 345933 Material Technical Specifications Category Centerless Grinding Dimensions Get quotes online for manufacturing services at MFG.com from machine shops, fabricators, job shops and contract manufacturers. MFG.com connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Centerless Grinding: Centerless grinding is done by feeding the part through the grinding device. There are three types of centerless grinding processes: through-feed grinding, in-feed grinding, and end-feed grinding.