Sealing structure for linear motion bearing

Details Sealing structure for linear motion bearing Sealing structure for linear motion bearing

1990-09-26

1992-03-03

Footland, Lenard A.

Bearings

Linear bearing

Combined with seal or guard

384 45, F16C 3106

Patent

active

050926853

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.

REFERENCES:
patent: 2548848 (1951-04-01), Stechmann
patent: 2951728 (1960-09-01), Drake
patent: 4927272 (1990-05-01), Ward

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