| 摘要 |
The element (1) has a roller bearing (4) i.e. ball bearing, providing bearing support for a rotatably arranged rotary part (2). The roller bearing comprises a rotatable roller bearing part (5) that is placed co-rotational with the rotary part, and a stationary roller bearing part (6) that is stationary in relation to the rotary part. The roller bearing comprises a polygonal, generally arc-shaped, open, metallic anti-twist device (7) to arrange the stationary roller bearing part in a bearing seat (3) in a rotationally fixed manner. An independent claim is also included for a method for manufacturing a medical or dental hand- held element. |
