Steel Balls Grade 25 Chrome

The quality of bearing can be defined by various ratings, such as the rating of ball roundness. A high quality steel ball bearing is consider grade 25. The
grade number refers to the tolerance per millionth of an inch. A grade 25 is accurate to 25/1,000,000 of an inch. We sell the ball bearings in packs please check the quantity per pack. If you don’t see the size your looking for contact us.