Friction and bearings 69 Friction 70 Types of friction 70 Making use of friction 71 Bearings 71 Plain bearings 73 Antifriction bearings 74 Special types of bearings 76 Removing and installing bearings 77 Cleaning and checking bearings 78 Bearing adjustments 79 Bearing failures 80 Antifriction bearing defects 81 Technical terms 83 Review questions 83