Page 57 - The Tribology Handbook
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A9 Steady load pressure fed journal bearings
PRACTICAL GUIDE TO REGION OF SAFE OPERATION (INDICATING ACCEPTABLE
GEOMETRY AND OIL GRADE)
N N N
BEARING LENGTH/DIAMETER = 0.5
IL GRADE IS0 V646 (46 cSt at 40°C)
BEARING CLEARANCES AS FIG. 9.5
(Recommended minimum)
HIGH TEMPERATURE
L OXIDATION LIMIT)
102 103 104 102 103 io4 io5 io2 io3 104
revlmin rev/min revlmin
Fig. 9.6. Guide to region of safe operation (showing the effect of design changes) Work within the limiting
curves
2 axial groove bearing - Groove length 0.8 of bearing length and groove width 0.25 of bearing diameter
Oil feed conditions at bearing - Oil feed pressure 0.1 MN/m2 and oil feed temperature 50°C
A9.4
