Positive contact, self retaining bearing seals
Abstract
An ultra-low friction bearing including an inner race, an outer race, bearing elements engaged between the inner and outer races and a seal between the inner and outer races is disclosed. The seal includes first and second sealing washers. The first washer has an outer diameter greater than an inner diameter of the outer race and an inner diameter greater than the outer diameter of the inner race. The second washer has an inner diameter less than the outer diameter of the inner race and an outer diameter less than the inner diameter of the outer race. The first washer slidably engages the outer race, the second washer slidably engages the inner race and the washers overlap and slidably engage one another. One of the washers snap fits into its respective inner or outer race while the other washer engages a stepped surface of the other of the inner and outer races. The grooved and stepped surface are offset from one another in a longitudinal direction of the races such that the washers are conically loaded thus providing a seal between the inner and outer races sufficient to prevent lubricant and contaminating particles from passing therethrough. The washers are mademore »
- Inventors:
-
- Kansas City, MO
- Issue Date:
- Research Org.:
- Kansas City Plant (KCP), Kansas City, MO (United States)
- OSTI Identifier:
- 868269
- Patent Number(s):
- 5110222
- Application Number:
- 07/473,800
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16J - PISTONS {
- DOE Contract Number:
- AC04-76DP00613
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- positive; contact; retaining; bearing; seals; ultra-low; friction; including; inner; race; outer; elements; engaged; races; seal; disclosed; sealing; washers; washer; diameter; slidably; engages; overlap; engage; snap; fits; respective; stepped; surface; grooved; offset; longitudinal; direction; conically; loaded; providing; sufficient; prevent; lubricant; contaminating; particles; passing; therethrough; non-metallic; semi-flexible; low-modulus; material; bearing element; outer race; bearing elements; inner diameter; longitudinal direction; passing therethrough; outer diameter; slidably engage; bearing including; outer races; contaminating particles; inner race; /384/277/
Citation Formats
Johnson, Bruce H, Larsen, Lawrence E, and Welch, Edmund F. Positive contact, self retaining bearing seals. United States: N. p., 1992.
Web.
Johnson, Bruce H, Larsen, Lawrence E, & Welch, Edmund F. Positive contact, self retaining bearing seals. United States.
Johnson, Bruce H, Larsen, Lawrence E, and Welch, Edmund F. Tue .
"Positive contact, self retaining bearing seals". United States. https://www.osti.gov/servlets/purl/868269.
@article{osti_868269,
title = {Positive contact, self retaining bearing seals},
author = {Johnson, Bruce H and Larsen, Lawrence E and Welch, Edmund F},
abstractNote = {An ultra-low friction bearing including an inner race, an outer race, bearing elements engaged between the inner and outer races and a seal between the inner and outer races is disclosed. The seal includes first and second sealing washers. The first washer has an outer diameter greater than an inner diameter of the outer race and an inner diameter greater than the outer diameter of the inner race. The second washer has an inner diameter less than the outer diameter of the inner race and an outer diameter less than the inner diameter of the outer race. The first washer slidably engages the outer race, the second washer slidably engages the inner race and the washers overlap and slidably engage one another. One of the washers snap fits into its respective inner or outer race while the other washer engages a stepped surface of the other of the inner and outer races. The grooved and stepped surface are offset from one another in a longitudinal direction of the races such that the washers are conically loaded thus providing a seal between the inner and outer races sufficient to prevent lubricant and contaminating particles from passing therethrough. The washers are made from a non-metallic semi-flexible low-modulus material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 05 00:00:00 EDT 1992},
month = {Tue May 05 00:00:00 EDT 1992}
}