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Fretting wear damage is frequently reported in the races of rolling element bearings and leads to the increased noise and vibration in the total machinery. The fretting wear studies were conducted on the as-received and hardened and tempered En 24 steel fretted against hardened and tempered bearing steel, En 31. Tests were conducted at different normal loads under unlubricated dry conditions. The...
Rolling element bearings experience fretting wear type of failures due to small relative oscillatory motion existing between races and rolling elements of the bearing. Small oscillatory motion between contacting surfaces that occur due to overall machine or system vibration and unexpected loads in service causes accumulation of wear debris in the contact zone and accelerate the wear process. A fretting...
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