5/8 dia. Tan Rubber Ball This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Transfer Molding I am looking for a supplier. I need 5/8" diameter tan rubber balls. They must be tumbled to remove flash. I have samples of my current suppliers balls if you need to compare. The durometer of the balls I am currently using is 70. These balls are used in a gyratory sifter as screen cleaners. Concentricity and size not extremely critical. Part Part Number: 625ntrb Material: Elastomer Material Grade: Technical Specifications Category:Transfer Molding Dimensions0.0 x 0.0 inch Annual Usage:60000.0 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. Transfer Molding: Transfer molding is a process in which the molding material, generally thermosetting plastic, is pre-measured and heated in a pot. A plunger forces the near-molten material through channels into the mold cavities where it is cooled.