50 = 0.7 h b ) = 0.1) Example 1.2 height reduction = 30% (h f Singh/ Dr. Colton Prof. Ramesh Singh, Notes by Dr. w = 10 mm = 2 mm = 1.4 mm –h f R = 75 mm = 0.8 m/s mineral oil lubricant (µ K = 720 MPa, n = 0.46 • •h b • • •v R • •