RCMX CBN Inserts Application Case IT900- for rough turning Slewing Bearing For example: Workpiece: Slewing Bearing Material: 42CrMo Hardness: HRC47-55 Insert: RCMX090700 Cutting parameter: Vc=90m/min ap=0.5mm f = 0.6mm/r Tool life: 4pcs/edge For comparison only: Other CBN inserts: 1pc/edge Vc=70m/min