This electronic part is a 220027 ball manufactured by Kolver. It is a multi-levelled miniature ball bearing with a small contact surface area. It is composed of a stainless steel central ball, plastic shields, a steel or brass outer ring and applicator, and 1 or more smaller-sized stainless steel balls. It has a low level of friction and a high vibration dampening capacity. It is widely used in numerous industries such as automotive, medical, aerospace, and industrial applications.