《TNT的圆锥滚子轴承样本》.pdf

For New Technology Network Large Size, R Long Operating Life Bearing - EA type corporation NTN Large Size, Long Life Bearings - EA type A newly developed special heat treatment allows these bearings to ensure longer operating life under severe operating conditions!! EA bearings have a particularly strong advantage by providing longer operating life due to their improved crack fatigue strength, wear strength and peeling resistance characteristics, especially when the lubricant is contaminated and also when the lubricant is clean. Accordingly, these bearings can be used at steel rolling mills and casting facilities where poor lubrication, vibrations and impact loads often exist. The EA bearings provide advantages due to their compact design, longer operating life, and longer intervals between maintenance and inspections. They can be used also for other applications with heavy loads and severe lubricating conditions such as construction and industrial machines. Performance EA bearings are produced by a special heat treating process of carburized steel. This process is especially used for larger size bearings. The heat treatment (Operating life and strength comparison of EA bearings against standard carburized bearings) combines carburization and nitriding. This process is an important achievement which strengthens the surface (1) Oper