The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1988
Filed:
Apr. 29, 1987
Michael H McNaull, Ashland, OH (US);
McNeil (Ohio) Corporation, St. Paul, MN (US);
Abstract
A bearing system for a motor (10) having a housing (20) and a rotor shaft (25). The bearing system includes a first unitary bearing member (31) located proximate to a first end (17) of the motor (10), and rotatably receiving the rotor shaft (25). The first bearing member (31) has a body region (40), first and second outer radial alignment surfaces (35, 36) for aligning the body region (40) relative to the housing (20), a radial bearing surface (45) for resisting radial forces from the rotor shaft (25) and an axial bearing surface (54) for resisting axial forces in a first direction. A flange (33) secures the first bearing member (31) to the housing (20). A first bearing plate (56) is fixed to the rotor shaft (25) for rotation therewith. The first bearing plate (56) is positioned in opposition to the axial bearing surface (54) of the first bearing member (31). A second unitary bearing member (32) is axially displaced from the first bearing member (31) with the rotor shaft (25) rotatably received by and passing axially through the second bearing member (32). The second bearing member (32) has a body region (74), first and second outer radial alignment surfaces (72, 73) for aligning the body region (74) relative to the housing (20), a radial bearing surface (80) for resisting radial forces from the rotor shaft (25), and an axial bearing surface (87) for resisting axial forces in a second direction. A rim (69) secures the second bearing member (32) to the housing (20). A second bearing plate (90) is fixed to the rotor shaft (25) for rotation therewith. The second bearing plate (90) is positioned in opposition to the axial bearing surface (87) of the second bearing member (32).