Free Engineering Tool #056
Bearing Removal (Extraction) Force Calculator
Estimate idealized axial sliding resistance for a same-material solid shaft and thick-walled fitted ring. Actual peak extraction force can differ substantially.
Results
Interface Pressure (Lamé)
Special case for a solid shaft and thick ring of the same isotropic material under the simplified open-ended elastic model:
- δ — diametral interference (mm)
- d — nominal interface diameter (mm)
- Dr — actual outer material boundary of the fitted ring (mm), not overall bearing OD
- E — Young’s modulus (MPa)
Removal Force
⚠️ Interpretation: F = pπdLμ is a uniform-contact friction estimate. No universal error band applies; uncertainty in geometry, interference after roughness, μ and interface condition must be evaluated for the actual removal process.
It is idealized axial sliding resistance F=pπdLμ for the stated uniform elastic fit, not a guaranteed puller load or peak breakaway force.
Use a value validated for the actual material pair, surface condition, lubricant, pressure and breakaway/sliding regime. The result is directly proportional to μ.
Dr is the actual outer material boundary of the fitted ring. Do not use overall rolling-bearing OD.
Use only manufacturer-approved thermal, hydraulic or mechanical removal procedures and apply force through the intended ring or feature.
No. Reuse requires inspection and manufacturer acceptance criteria; this estimate cannot reveal damage or contamination.
The procedures described on this page were developed and field-tested by the Vibromera team using the Balanset-1A, a portable dual-channel balancer and vibration analyzer for on-site rotor balancing.
Professional vibration analyzers. Used in 50+ countries.
