Load Capacity of Partially Textured Slip Parallel Slider and Concentric Journal Bearing Using Narrow Groove Theory

Load capacity of partially textured slip parallel slider and concentric journal bearing is estimated using narrow groove theory (NGT). The overall pressure distribution in a hydrodynamic bearing using NGT provides a good approximation to the actual pressure distribution around bearing with large but finite number of grooves. The non-dimensional pressure expressions are derived based on one-dimensional analysis. The partially textured slip parameters used in the analysis are: non-dimensional texture length; land with slip to recess region ratio; non-dimensional slip coefficient; and non-dimensional depth of recess. Partially textured slip is effective in the case of parallel slider and concentric journal bearing to yield load capacity.