| 摘要 |
A coffered seal including an inner ring having a U-shaped cross section open radially outward and consisting of two rings of L-shaped cross section facing each other and joined together by bearing sleeve. Within the space embraced by the U-shaped cross section is an outer ring also having a U-shaped cross section open axially and having an outer side and an inner side of frusto-conical shape. Two sealing rings in the space embraced by the cross section of the inner ring having lips that engage opposite surfaces of the frusto-conical inner side of the outer ring at approximately the same diameter to form inner and outer circular seals against the same.
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