Patent ID: 9651155
Date: 2017-05-16
CPC Classifications: F16C,F16J

Claim:
1. A gasket for sealing a compartment between two members, one fixed and the other rotating, so as to prevent the passage of lubricant from a first ambient to a second ambient arranged on opposite sides of said compartment, and to at least hinder the passage of external contaminants from said second ambient to said first ambient; said gasket having an annular configuration about a middle axis and having a first and a second axial opposite end, adapted to be arranged, in use, facing said first and second ambient, respectively; said gasket comprising: a first support ring made of rigid material having a first annular fixing portion, adapted to be connected, in use, to a first of said members; a second support ring made of rigid material made in one single piece, having a second annular fixing portion radially more external than said first fixing portion and adapted to be connected, in use, to a second of said members; a first annular elastomeric element carried by the first support ring and defining at least a first annular sealing lip cooperating with said second fixing portion of said second support ring to counter, in use, the passage of external contaminants from said second ambient to said first ambient; a second annular elastomeric element carried by the second support ring and defining at least a second annular sealing lip cooperating with the first fixing portion of said first support ring to counter, in use, the passage of lubricant from said first ambient to said second ambient; wherein the gasket also comprises an annular wiper member, distinct from the first elastomeric element, connected to said first elastomeric element and having a wiping portion contacting said second fixing portion of said second support ring to counter, in use, the passage of external contaminants from said second ambient to said first sealing lip.