Sealing structure for linear motion bearing
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United States of America Patent
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-
Mar 3, 1992
Grant Date -
N/A
app pub date -
Sep 26, 1990
filing date -
Sep 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sealing structure for preventing entry of foreign matter or lubricant leakage in the gaps formed between a linear motion bearing assembly movable along the length of a rail base. An elastic seal includes an end portion retained at the junction of the ends of the assembly with the rail base, and connecting portions integrally formed with the end portions at the junction of the sides of the assembly with the rail base. The inner periphery of the seal is slightly smaller than the periphery of the rail base to provide a positive seal. The ends of the assembly include stepped portions with inner peripheries slightly larger than the outer periphery of the end portions to permit the sealing structure to self-position above the rail base.
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