| 摘要 |
An improved mechanical seal comprising a driver and a sealing portion, the driver being molded of a carbon-resin compound and attachable to a rotating shaft by means of a clamping means which does not dimple the shaft, the sealing portion being molded of a graphite-resin compound and having a lip for a sealing face, both the driver and the sealing portions have considerable strength and similar coefficients of expansion. |
