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Bearing including a phthalonitrile-based polymer material

A technology of phthalonitrile and polymer materials, applied in the direction of bearings, bearings, shafts and bearings of rotating motion, can solve the problems of high friction coefficient and high manufacturing cost

Inactive Publication Date: 2018-11-13
ROLLER BEARING OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ceramic coated bearings can withstand high temperatures, such bearings are expensive to manufacture and have a high coefficient of friction when used

Method used

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  • Bearing including a phthalonitrile-based polymer material
  • Bearing including a phthalonitrile-based polymer material
  • Bearing including a phthalonitrile-based polymer material

Examples

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Embodiment Construction

[0023] figure 1 Shown is a plain bearing 20 according to an embodiment of the invention. figure 2 for figure 1 Cross-sectional view of the sliding bearing 20. refer to figure 1 with figure 2 , the sliding bearing 20 extends along the axis A from the first end 22 to the second end 24 and is generally annular (eg, tubular) around the axis A. The bore 26 extends through the bearing 20 between a first opening 28 near the first end 22 and a second opening 30 near the second end 24 . The cavity 26 is used to accommodate a pin or shaft (hereinafter referred to as “shaft”) 27 . When the shaft 27 is received in the bore 26 , the shaft 27 is rotatable about the axis A relative to the bearing 20 . The inner surface 32 forms a raceway. The raceway is in sliding engagement with the shaft 27 when the shaft 27 is received in the bore 26 . The bearing 20 is intended to fit into a bearing housing 33 . The bearing 20 can be pressed into the bearing housing 33 . In one embodiment, th...

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PUM

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Abstract

Disclosed is a bearing including a phthalonitrile-based polymer material. In one embodiment, the bearing is configured to withstand a temperature condition of at least 600 DEG F.

Description

[0001] related application [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 490,168, filed April 26, 2017, entitled "Bearings Containing Phthalonitrile-Based Polymer Materials," the entire contents of which application Incorporated herein by reference. technical field [0003] This invention relates generally to bearings, and more particularly to polymer bearings capable of withstanding high temperature operating conditions, especially 600°F to 700°F (316°C to 371°C) or higher temperature operating conditions. Background technique [0004] Among existing polymer bearing technologies, polyimides are known to be used for bearing applications. However, the typical maximum operating temperature for such polymer bearings is just under 600°F. In addition, such polymer bearings may have poor impact toughness (too brittle), high water absorption and poor thermal-oxidative stability, which may lead to chemical degradation and premature failure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/20F16C17/24
CPCF16C17/243F16C33/201F16C2208/04F16C2240/06F16C2208/20F16C2208/80F16C2202/20C08L79/04F16C17/12F16C2202/54C08G73/0644C08G73/0672F16C33/203F16C2208/32F16C17/10C08J5/04
Inventor 诺兰·理查德弗兰克·亚当斯
Owner ROLLER BEARING OF AMERICA