JOURNAL BEARING PROTECTION DEVICE FOR SINK ROLL AND STABILIZING ROLL OF THE ZINC PLATING APPARATUS

摘要

An apparatus of protecting a journal bearing for a sink roll and a stabilizing roll of a zinc plating apparatus is provided to prevent eccentric abrasion from occurring in the journal bearing by injecting nitrogen gas having high temperature into the journal bearing. An apparatus of protecting a journal bearing for a sink roll and a stabilizing roll of a zinc plating apparatus comprises at least two sleeves(11), a bearing(12) inserted between the sleeves, a first housing(20) having a first space(22), a second housing(30), which is coupled to the first housing and has a second space(32), a supply tube(40) and a discharge tube(50). The sleeves are inserted around the outer circumference of a journal(10) of a sink roll and a stabilizing roll. A first seal(60) and a second seal(70) are inserted into the first housing and the second housing, respectively.