| dc.description |
A series of tests were carried out, in the Design
Department of the College of Aeronautics, on plain journal
bearings, at higher pressures than are normally encountered in
engineering practice. Pressures of 40,000 lb/in.2 were realised
with a rubbing speed of 1.1 ft./min. Comparison between the
various materials tested was effected by continuously rotating
the bearings for fixed periods under various loads while friction
and wear were measured periodically. The most outstanding
combination was S.90 Chromium-plated running in a Hidurex Special
bearing. Some other materials, listed in paragraph 8, were also
found to be suitable although not so wear-resistant.
All the materials tested suffered same surface damage
which, in general, proved not to affect the bearing performance.
An attempt is made to explain the behaviour of the
bearings and thus indicate possible further materials which might
prove suitable. |
|