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1. Internal geometry of ball bearings
Calculating the load capacity of ball bearings requires calculating the Hertz pressure in the ball/track contact.
1.1 Contact ballot/track
The ball is the rolling element that generates the least friction, as it is in point contact with the track. Under the effect of the load transmitted through the ball and the elastic deformation of the tracks, the contact zone widens and the contact surface becomes elliptical (figure 1 ).
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Internal geometry of ball bearings
Hertz pressure and deformation
Bibliography
Websites
NTN-SNR Bearings
https://www.ntn-snr.com/fr/ntn-snr-roulements
SKF Bearings
https://www.skf.com/fr/products/rolling-bearings
Delft Engineering-abc.com Website of Prof. Anton Van Beek,...
Norms and standards
- Bearings – Basic static loads. - NF ISO 76 - 2006
- Bearings – Basic static loads. Amendment 1. - BS ISO 76 :2006+A1 - 2006
- Bearings – Basic static loads (ISO 76:2006) – Amendment 1 :2017). - DIN ISO 76 - 2019
- Bearings – Basic dynamic loads and normal duration. - NF ISO 281 - 2007
- Bearings – Explanatory notes on ISO 281 – Part 1: Basic dynamic loads and basic nominal duration. - ISO/TR 1281-1 :2021...
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