The 8-lobe journal bearings have found application in the bearing systems of spindles of grinding machines.
The design of bearings and the large number of lobes and oil grooves assures good cooling conditions of
bearing. These bearings can be manufactured as the bearings with cylindrical, non-continuous operating
surfaces separated by six lubricating grooves, bearings with the pericycloidal shape of the bearing bore, and
as offset journal bearing.
This paper presents the results of the computation of static characteristics of an offset 8-lobe journal bearing
operating under the conditions of an aligned axis of journal and bush, adiabatic oil film, and at the static
equilibrium position of journal. Different values of bearing length to diameter ratio, relative clearance, and
lobe relative clearance were assumed. Reynolds' energy and viscosity equations were solved by means of an
iterative procedure. Adiabatic oil film, laminar flow in the bearing gap, and aligned orientation of journal in
the bearing were considered.
Static Characteristics Analysis of a Herringbone Grooved Hydrodynamic Journal Bearing
