Method and tooling for dismounting a cassette seal
AssigneeVolvo Truck Corporation
InventorRaphael BOST
Life of this patent
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Abstract
A method and a tooling for dismounting a cassette seal having a radially inner ring mounted on a rotative shaft and a radially outer ring mounted in a receiving static bore is described. The method for dismounting the cassette seal includes a pressing step comprising displacing a first of the radially inner and outer rings with respect to its respective cylindrical support surface, along a first axial direction along the main axis; an extraction step, subsequent to the pressing step, comprising displacing the second of the radially inner and outer rings with respect to its respective cylindrical support surface, along a second axial direction opposite to the first axial direction along the main axis.
Claims15
A method for dismounting a cassette seal having a radially inner ring mounted on a cylindrical support surface of a rotative shaft and having a radially outer ring mounted in a cylindrical support surface of a receiving static bore, the rotative shaft being rotative around a main axis with respect to the receiving static bore and the radially inner ring being rotative around the main axis with respect to the radially outer ring, and wherein at least one of said radially inner and outer rings carries at least one elastomeric annular lip which is biased against a contact surface of the other of said radially inner and outer rings, characterized in that the method for dismounting said cassette seal includes at least :
- a pressing step comprising displacing a first of said radially inner and outer rings with respect to its respective cylindrical support surface, along a first axial direction along the main axis;
- an extraction step, subsequent to the pressing step, comprising displacing the second of said radially inner and outer rings with respect to its respective cylindrical support surface, along a second axial direction opposite to said first axial direction along the main axis.
Tooling for dismounting a cassette seal having an radially inner ring mounted on a cylindrical support surface of a rotative shaft and a radially outer ring mounted in a cylindrical support surface of a receiving static bore, the rotative shaft being rotative around a main axis with respect to the receiving stating bore and the radially inner ring being rotative around the main axis with respect to the outer ring, and wherein at least one of said radially inner and outer rings carries at least one elastomeric annular lip which is biased against a contact surface of the other of said radially inner and outer rings,
- characterized in that the tooling comprises a presser surface which is angularly spread over more than 180 degrees of angle around the main axis and which is configured for axially engaging the first of said radially inner and outer rings, along the first axial direction, while being radially received between, on the one hand, the support surface of the first of said radially inner and outer rings, and, on the other hand, the second of said radially inner and outer rings.
Dependencies are inferred from the claim text.