Page 59 - The Tribology Handbook

A9 Steady load pressure fed journal bearings

GUIDE TO OPERATING MINIMUM FILM THICKNESS

i
CLEARANCE (diametral)
DIAMETER

60
80
100
200
.E 400
E
-- 600 a
$ 800
*- 1000 Oil feed conditions at bearing 0.1 MN/mZ (z Ibf/in2) and 50°C
15
; 2000
?i 4000
6000
8000
10 000
20 000
40 000
\

LENGTHIDIAMETER, b/d

fig. 9.7. Prediction of minimum oil film thickness for a centrally loaded beadng ImM-way between feed
groovesJ and for an aligned journal (laminar conditionsl

A9.6