| FB形防尘圈（骨架） |
| 密封圈公称尺寸 | 沟槽尺寸 | ||||
| d | D | H | d | D | L |
| 6 | 14 | 5 | 6 | 14 | 5 |
| 8 | 16 | 8 | 16 | ||
| 10 | 18 | 10 | 18 | ||
| 12 | 22 | 7 | 12 | 22 | 7 |
| 14 | 24 | 14 | 24 | ||
| 16 | 26 | 16 | 26 | ||
| 18 | 28 | 18 | 28 | ||
| 20 | 30 | 20 | 30 | ||
| 22 | 32 | 22 | 32 | ||
| 25 | 35 | 25 | 35 | ||
| 28 | 38 | 28 | 38 | ||
| 32 | 42 | 32 | 42 | ||
| 36 | 46 | 36 | 46 | ||
| 40 | 50 | 40 | 50 | ||
| 45 | 55 | 45 | 55 | ||
| 50 | 60 | 50 | 60 | ||
| 60 | 70 | 60 | 70 | ||
| 63 | 73 | 63 | 73 | ||
| 70 | 80 | 70 | 80 | ||
| 80 | 90 | 80 | 90 | ||
| 90 | 100 | 90 | 100 | ||
| 100 | 115 | 9 | 100 | 115 | 8 |
| 110 | 125 | 110 | 125 | ||
| 125 | 140 | 125 | 140 | ||
| 140 | 155 | 140 | 155 | ||
| 160 | 175 | 160 | 175 | ||
| 180 | 195 | 180 | 195 | ||
| 200 | 215 | 200 | 215 | ||