Plain bearing

• US 20020126924A1
• Filed: 03/06/2002
• Published: 09/12/2002
• Est. Priority Date: 03/07/2001
• Status: Active Grant

• Current Assignee: Daido Metal Company Limited
• Original Assignee: Daido Metal Company Limited
• Inventors: Imai, Satoshi, Okamoto, Yutaka, Kitahara, Ken, Shibayama, Takayuki, Ishikawa, Hideo, Hiramatsu, Nobutaka
• Granted Patent: US 6,648,513 B2
• Time in Patent Office: Days
• US Class Current: 384/276
• CPC Class Codes: F16C 17/022 with a pair of essentially semicircular bearing sleeves
• CPC Class Codes: F16C 2240/50 Crowning, e.g. crowning height or crowning radius
• CPC Class Codes: F16C 23/041 with edge relief
• CPC Class Codes: F16C 33/122 Multilayer structures of sleeves, washers or liners
• CPC Class Codes: F16C 9/04 Connecting-rod bearings; Attachments thereof

Abstract

There is disclosed a plain bearing comprising: a back metal; and a bearing alloy layer bonded onto the back metal which bearing alloy layer is provided at a surface side thereof with a cylindrical bearing face extended in the direction of the axis of the plain bearing, the bearing alloy face being provided at each of axial terminal portions thereof with an inclination face inclined radially outwardly from a location defined between both of axially terminal ends of said bearing face toward said axially terminal ends thereof, the inclination face having an axial length varying along the circumference of the inclination face.

Claims

1. A plain bearing comprising:

a back metal; and

a bearing alloy layer bonded onto said back metal which bearing alloy layer is provided at a surface side thereof with a cylindrical bearing face extended in a direction of an axis of said plain bearing,

said bearing alloy face being provided at each of axially terminal portions thereof with an inclination face inclined radially outwardly from a location defined between both of axially terminal ends of said bearing face toward said axially terminal ends thereof, said inclination face having an axial length varying along the circumference of said bearing alloy layer.

2. A plain bearing as claimed in claim 1, wherein the axial length of said inclination face is set to be longest at each of axial locations corresponding to maximum oil film pressures which are present on the bearing face, and said axial length is reduced in succession as spaced apart therefrom in the circumferential direction.

3. A plain bearing as claimed in claim 1, wherein the axial length of said inclination face is set to be shortest at each of axial locations corresponding to maximum oil film pressures which are present on the bearing face, and said axial length is increased in succession as spaced apart therefrom in the circumferential direction.