Scope
This document specifies a calculation procedure for maximum bearing temperature and effective dynamic viscosity in lubricant film of oil-lubricated and statically loaded hydrodynamic plain journal bearing with circular cylindrical shape, angular span Ω of 360°, and width ratio B* of 0,5 to 1,5 under fluid lubrication regime. Purpose and justification of the proposal
Purpose
Although ISO 7902 specifies the main characteristics of hydrodynamic plain journal bearings, it doesn’t specify bearing maximum temperature that is important bearing characteristic for high speed rotating machineries. A new document is required to specify the bearing maximum temperature, that is calculated by thermo-hydrodynamic lubrication calculation.
Comment on proposal
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