A LABORATORY INVESTIGATION OF THE JOURNAL BEARING FILLET RADIUS

With the objective of improving bearing life by means of better performance at the fillet, some preliminary experimental tests have been conducted in the AAR Mechanical Laboratory. The laboratory tests were conducted to determine if a smaller area of initial fillet contact would result in less bearing lining disturbance at the fillet, and if this might be accomplished by a variation of the original fillet radius to either a larger or smaller radius dimension. Conclusions and suggestions based upon the test results and observations are as follows: 1. Any reduction of the present standard bearing fillet radius dimension appears to create a worse condition. 2. A moderate increase in the present standard bearing fillet radius dimension of 3/4 inch plus 1/16 inch, minus zero, to 13/16 inch, plus 1/16 inch, minus zero, if testing in service now in progress confirms the laboratory findings.

• Corporate Authors:

  Association of American Railroads

  3140 South Federal Street
  Chicago, IL  United States  60605
• Publication Date: 1959-5

Media Info

• Pagination: 2 p.

Subject/Index Terms

• TRT Terms: Axles; Bearings; Lubrication; Technology
• Geographic Terms: United States
• Subject Areas: Maintenance and Preservation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00040372
• Record Type: Publication
• Report/Paper Numbers: AAR MR-349 Res Rpt
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM