Accession Number:

ADA070383

Title:

Survivability of Silicon Nitride Bearing.

Descriptive Note:

Final rept. 1 Aug 77-1 Dec 78,

Corporate Author:

PRATT AND WHITNEY AIRCRAFT GROUP WEST PALM BEACH FL GOVERNMENT PRODUCTS DIV

Personal Author(s):

Report Date:

1978-12-01

Pagination or Media Count:

51.0

Abstract:

An oil shutoff test was conducted on a 35 mm bearing with silicon nitride balls. The time to bearing failure was 90 sec compared to 45 sec for an M-50 steel bearing which was similarly tested. This result compares favorably with the 1.74 factor was predicted by an analytical model. Post-test inspection found the silicon nitride balls with minor surface distress compared to the extreme spalling of the M-50 balls. Author

Subject Categories:

  • Ceramics, Refractories and Glass
  • Machinery and Tools
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE