Title

A Study of the Influence of Lubricants on High-Speed Rolling-Contact Bearing Performance

Date

1967

Index Abstract

Coming Soon

Photo Quality

Not Needed

Report Number

ASD TDR 61-643 Part 7

Creator

Kannel, Jerrold

Bell, J. Clarence

Walowit, J. A.

Allen, C. M.

Corporate Author

Battelle Memorial Institute

Laboratory

Air Force Aero Propulsion Laboratory

Date Issued

1967-10-10

Extent

80

Identifier

AD0823522

Access Rights

Export

Distribution Classification

1

Contract

AF 33(615)-2614

DoD Project

3044

DoD Task

304401

DTIC Record Exists

No

Distribution Change Authority Correspondence

AFAPL LTR

Abstract

The thickness of the lubricating film between a pair of rolling-contact disks has been measured for a variety of loads, speeds, temperatures, and lubricant types, by using an X-ray technique. An empirical equation has been derived from the film-thickness data. The variation of film thickness with inlet viscosity and speed in this equation is similar to theoretical predictions. However, the empirical equation shows film thickness to be much more strongly dependent on loading than the usual theory shows. Modifications to the film-thickness theory with allowance for thermal and non-Newtonian effects have been made, which do not directly improve the agreement between theory and experiment, but which may provide clues for further study. In addition to the film-thickness studies, a miniaturized manganin pressure transducer has been located on the outer race of an 85-mm bore bearing. Preliminary pressure data have been obtained for a variety of bearing loadings up to 300,000-psi maximum contact pressure.

Report Availability

Full text available by request

Type

report

Provenance

Lockheed Martin Missiles & Fire Control

Format

80 pages ; 28 cm.