TourTourHydrodynamic journal bearing

 

 Diameter shaft D 10-3 m
 Bearing length L 10-3 m
 Diametric clearance ΔD  10-6 m
 Rotational speed n rpm
 Minimum film thickness h0 10-6 m
 Viscosity η Pas
 Density ρ 103 kg/m3
 Specific heat capacity c 103 J/(kgK)
   
 Bearing length number L /D
 Clearance number D/ΔD
 Eccentricity ratio ε = (ΔR-h0)/ΔR
 Sommerfeld number So
 Attitude angle β
 Flow number Cq
 Friction number μ(R/ΔR)
 Coefficient of friction μ
 Load capacity F 103 N
 Stiffness S = - dF/dh 106 N/m
 Power loss W
 Side leakage Q 10-6 m3/s
 Frictional heating dT K
 
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