High Precision Dental Handpiece Bearings fits Bien air Black Pearl ECO Set
| Type | Miniature High Precision Ball Bearing |
| Material | Stainless Steel |
| Ball Material | Ceramic Si3N4 |
| Precision | ABEC 7 / P4 |
| Qty | Two Bearings ( Back and Front ) |
| Speed | 400,000 rpm |
| Type | Miniature High Precision Ball Bearing |
| Material | Stainless Steel |
| Ball Material | Ceramic Si3N4 |
| Precision | ABEC 7 / P4 |
| Qty | Two Bearings ( Back and Front ) |
| Speed | 400,000 rpm |
