Rolling element bearing member

Bearings – Bearing-surface treatment

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

384492, 384912, F16C 3362

Patent

active

046592415

ABSTRACT:
A rolling element bearing member designed for use in a preselected bearing operation, such as a gas turbine engine, which develops a predetermined operating hoop tensile stress in the member includes a hardened layer contiguous with a ductile core having a hardness less than 50 Rockwell C. For example, the hardened layer is a carburized layer of high hardness in the range of 58-66 Rockwell C. The hardened layer has improved resistance to crack initiation and propagation as a result of providing the layer with compressive residual stress in an amount greater than the predetermined operating hoop tensile stress, for example in the range of about 10-60 ksi to a depth up to about 0.06 inch. Such a member is made by providing a member of a metal alloy having the capability of developing such a hardened layer, and then processing the member to develop the layer in the amount of compression.

REFERENCES:
patent: 4131491 (1978-12-01), Joseph
patent: 4191599 (1980-03-01), Stickels
patent: 4303137 (1981-12-01), Fischer

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Rolling element bearing member does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rolling element bearing member, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rolling element bearing member will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-748360

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.