Gasket unit for a bearing bushing
AssigneeINA-Schaeffler KG
InventorsHarald Peschke, Dieter Jauernig, Thomas Fickert, Siegfried Gotz
Life of this patent
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Abstract
The invention relates to a gasket unit (1) for a journal bearing (2), sealing an annular gap (6) between the bearing bushing (3) and the journal (4). The gasket unit (1) comprises a main seal (8) provided with a front seal (9) arranged in front if it, and a spring washer (10) is inserted between the rollers (5) and the primary seal (8).
Claims14
A gasket unit (1) for a rolling bearing supported journal bearing (2) inside a bearing bushing (3) for a universal joint, comprising a reinforced main seal (8) inserted into a bore of the bearing bushing (3) in a torque-proof manner, a front seal 9 axially positioned in front of the main seal (8), connected in a torque-proof manner to the journal (4), and a spring washer (10) arranged between the main seal (8) and a face (23) of rollers (5) of the bearing,
- the main seal (8) being pressed in a friction-locked manner via a cylindrical section (17) of a reinforcement (11) into the bore at an interior wall of the bearing bushing (3) and comprising at least one sealing lip (18, 19), being provided on a radially inwardly facing flange (14) of the reinforcement (11), said sealing lip is supported on the journal (4) in a sealing manner;
- the front seal (9) covering an annular gap (6) between the bearing bushing (3) and the journal (4);
- the spring washer (10) being supported on an outside thereof on an area of the reinforcement (11) of the main seal (8) that is coated with a seal material (15), and on an inside on the face (23) of the rollers (5),
- wherein in a mounted state the main seal (8) is positioned via an angled end section (12) of the reinforcement (11) supported on an interior wall (7) of the bearing bushing (3), and the main seal (8) includes two axially spaced apart sealing lips (18, 19), which are sealingly supported on a section (20) of the journal and have a same diameter as the journal (4), with the first sealing lip (19) facing the front seal (9) having located on an outside thereof a tubular spring (21), and the front seal (9), connected in a form-fitting manner with the bearing bushing (3) in an area of a radially separated end section (29), forming a labyrinth seal (3), includes a sealing lip (28), which is located inside of the reinforcement (11) of the main seal (8).
Dependencies are inferred from the claim text.