| 20100024218 | METHOD OF MAKING BEARING USING ULTRASONIC NANO CRYSTAL SURFACE MODIFICATION TECHNOLOGY - A method of making a bearing includes providing a bearing intermediate, which is unfinished while having an overall shape of a finished bearing product; and repeatedly impacting a surface of the bearing intermediate at one or more ultrasonic frequencies to modify characteristics of the bearing intermediate. The resulting bearing intermediate or finished bearing product includes nano-size grains at or underneath the surface. | 02-04-2010 |
