초록 ▼

A two-piece cartridge-type seal for wheel bearings and the like. The seal element contains a radial flange having a seal attached thereto and a mounting flange portion. The wear sleeve portion includes a cylindrical flange receivable over a rotary part, and a radial flange having an extension with a

A two-piece cartridge-type seal for wheel bearings and the like. The seal element contains a radial flange having a seal attached thereto and a mounting flange portion. The wear sleeve portion includes a cylindrical flange receivable over a rotary part, and a radial flange having an extension with an inner surface which engages a part of the seal during installation only. In use, the radial flange of the wear sleeve is engaged by a tool, and this radial flange deflects slightly to push the seal element into a desired position of installation, whereupon, when the tool is removed, the radial flange springs back and creates a slight working clearance between these parts.

대표청구항 ▼

[ I claim:] [1.] A two-piece excluder seal assembly comprising, in combination, a seal element and an associated wear sleeve element, said seal element including a relatively rigid casing unit having an axial mounting flange for fluid-tight positioning relative to a first machine part, a radially ex

[ I claim:] [1.] A two-piece excluder seal assembly comprising, in combination, a seal element and an associated wear sleeve element, said seal element including a relatively rigid casing unit having an axial mounting flange for fluid-tight positioning relative to a first machine part, a radially extending seal lip body locating flange, and an elastomeric seal lip body bonded to said seal lip body locating flange, said elastomeric seal lip body including air and oil side frusto-conical surfaces meeting along a generally circular locus to provide said lip body with a seal band area in contact with a portion of said associated wear sleeve element, said wear sleeve element including a radially inner, generally cylindrical flange having an inner surface for contacting a second machine part in fluid-tight relation and an outer surface in sealing contact with said seal lip body, a radially outer portion with an axially outer tool contact surface and an opposed, axially inner, force-applying surface in facing relation to a given portion of said seal element casing unit, and a stiff but resilient flex section joining said radially outer portion to said cylindrical flange, said seal element and said wear sleeve element being initially preassembled and constructed and arranged such that during installation, said flex section moves between a stressed position wherein said force-applying surface directly contacts said given portion of said casing unit to position said assembly relative to said first and second machine parts and a relaxed and installed position wherein said force-applying portion and said given portion are spaced apart by a working clearance.