Main Bearing Seal System
AssemblySeals on the outer and inner side of the main bearing that keep rock dust and water out of the bearing and gear oil in. Each side has a grease-purged labyrinth outside several rows of lip seals running on a hardened wear ring. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Main Bearing Seal System
3 top-level lines as of r193949| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Main Bearing Lip Seal | main-beam-tbm-lip-seal | 6× | 6 | · | part |
| 2 | Seal Wear Ring | main-beam-tbm-seal-wear-ring | 2× | 2 | · | part |
| 3 | Grease Labyrinth Ring | main-beam-tbm-labyrinth-ring | 2× | 2 | · | part |