Glebar's PG-9DHD Centerless Form Grinder was featured on Thomasnet. In a recent test, the PG-9DHD ground preformed balls and rods. Six preformed balls, measuring 1.25" diameter, were ground in 40 seconds. Each 1.75" diameter rod produced five balls in 3-1/2 minutes. In this application, form grinding increased output by as much as 80%.