The Journal Bearing Load Capacity Calculator is a practical engineering tool designed to estimate the load-carrying capacity of journal bearings based on key operating parameters. It helps engineers, designers, and maintenance professionals quickly evaluate whether a bearing can safely support the required radial load under specific working conditions. By simplifying bearing load calculations, the Journal Bearing Load Capacity Calculator supports efficient bearing selection, mechanical design, performance evaluation, and troubleshooting while reducing the risk of excessive wear, overheating, and premature bearing failure.

Journal Bearing Load Capacity Calculator

Input Parameters

Calculation Mode
Geometry
mm
mm
µm
Operating Conditions
RPM
mPa·s
Load
N
v = πdN/(60×1000) m/s · p = W/(dL) MPa · ψ = 2c/d · S = pψ²/(μω) · h_min = c(1−ε)

Results & Visualization

Hydrodynamic — Safe Operation
Sommerfeld No.
S = pψ²/(μω)
hmin
µm
Eccentricity ε
dimensionless
Avg Pressure p
MPa
Max Pressure
MPa (approx.)
Friction μf
dimensionless
Power Loss
W
Surface Speed
m/s
Clearance Ratio ψ
2c/d
Attitude Angle
degrees

Bearing Cross-Section & Pressure Distribution

Minimum Film Thickness vs RPM