Open Access
Table 2
Non-dimensional operating and geometric input parameters for two-lobe non-recessed hybrid journal bearing [8,9,26,29,30,36].
| Non-dimensional parameters | Value/range | Non-dimensional parameters | Value/range |
|---|---|---|---|
| Bearing aspect ratio (λ) | 1 | Radius of journal (RJ) | 50 mm |
Land width ratio  |
0.25 | Bearing length (L) | 100 mm |
Clearance ratio  |
0.001 | Radial clearance (c) | 0.05020 mm |
| No. of holes per row (K) | 12 | Shaft speed (N) | 2500 rev∙min−1 |
| No. of rows (N) | 2 | Supply pressure (ps) | 8.69 MPa |
| Concentric design pressure ratio (β∗) | 0.5 | External load (Wo) | 29.12 kN |
External load  |
1.0–1.6 | Reynolds Number (Re) | 1000 |
| Speed parameter (Ω) | 1.0 | Bearing thickness (th) | 5 mm |
| Offset factor (δ) | 1, 1.1 | Lubricant density (ρ) | 858 kg∙m−9 |
Restrictor design parameter  |
0.0873 | Lubricant viscosity (μ) | 0.0345 N∙s∙m−2 |
| Compensating element | Capillary | ||
| Geometric shape of microdimple | Spherical | ||
Dimple depth  |
1.8 | ||
Dimple radius  |
100 | ||
Couple stress parameter  |
0.1, 0.2 |
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