1974-02-01

A Study of the Relation Between Used Temperature and Sealing Characteristics on Oil Seals 740200

It is well known that the low-temperature test is successful for rating sealing characteristics of oil seals. Therefore, a compound with good thermal resistance to an ambient temperature range from -40 to +150°C is needed by the oil seal industry and should be developed.
On the other hand, it is indicated that low temperature affects the sealing characteristics and the lip abrasion of oil seals. This paper examines the relation between temperature and the sealing characteristics of oil seals. It is clear that the condition of the rubbing surface is closely related to the sealing characteristics of oil seals, and that the lower the ambient temperature falls, the rougher their rubbing surfaces become. Moreover, the roughening condition of the rubbing surface is intimately related with the environmental temperature, the rubbing period, the lubricating condition, the lip design, and compounds.

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