1. Harris, T. A., (2000), Rolling bearing analysis, 4th Edition, Wiley.
2. Palmgren, A., (1924), Die lebensdauer von kugellagern, Zeitschrift des Vereines Deutscher Ingenieure, 68(14), 339-341. https://archive.org/details/nasa_techdoc_19710009534/mode/2up
3. Dynamic Capacity of Rolling Bearings
4. American National Standards Institute, (1990), Load ratings and fatigue life for ball bearings, ANSI/AFBMA Std 9-1990.
5. ISO 281:1990, (1990), Rolling bearings–Dynamic load ratings and rating life.