| 摘要 |
The invention relates to a sealing ring arrangement 1 with a plastics sealing ring 3 between an outer radial guide ring 2 and an inner radial guide ring 4, wherein the outer guide ring 2 has a greater coefficient of thermal expansion than the inner guide ring 4, and therefore an effective coefficient of volume expansion of a ring gap between the guide rings is greater than the coefficient of volume expansion of the plastic of the plastics sealing ring 3. By means of a large effective coefficient of thermal expansion for the ring gap volume, which is achieved via different coefficients of expansion of the outer and of the inner guide ring, the fluctuation of the axial clamping forces of the plastics sealing ring can be limited. |
