Patents Assigned to Wellington Machine Co.
  • Plain bearing
    Patent number: 4005915
    Abstract: A plain bearing and bearing-supported member of hardened steel for high load, low speed, use, especially suitable in wet environments and requiring little or no lubrication. Bearing surfaces are nitrided and steam tempered, and have a low friction, corrosion, and wear resistant oxide surface on a hardened case.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: February 1, 1977
    Assignee: Wellington Machine Co.
    Inventor: Earl H. Canfield