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3. Static load capacity
Certain applications can impose very specific operating conditions on the bearing: prolonged stoppages under load, slow rotation under load, slow oscillations without complete rotation (bridge crane, pivot, hoist, etc.). A static load applied to a stationary bearing can, if too high, generate permanent deformations at the track/rolling element contacts, which would be detrimental to the bearing's proper operation when rotating.
Bearing catalogs give the static load capacity C o of each bearing, making it possible to check the bearings' resistance to Hertz pressure.
We define a maximum allowable load such that the Hertz pressure exerted in the stationary bearing does not impair its proper operation or degrade its service life. This maximum allowable load is...
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Static load capacity
Equivalent static load
Bibliography
Websites
NTN-SNR Bearings
SKF Bearings
Delft Engineering-abc.com Website of Prof. Anton Van Beek, University of Delft (Netherlands)
Standards
- Roulements. Charges statiques de base. - NF ISO 76 - 2006
- Roulements. Charges statiques de base. Amendement 1. - ISO 76/A1 :2017 - 2017
- Charges statiques de base. Supplément 2 à ISO 76. - DIN ISO 76 :2019 - 2019
- Bearings – Explanatory notes on ISO 76. - ISO/TR 10657 :1991 - 1991
- Roulements. Charges dynamiques de base et durée normale. - NF ISO 281 - 2007
- Rolling bearings. Explanatory notes...
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