1. ISO 76—Rolling bearing—Static Load Ratings.
2. Uber die Beruhrung fester elastischer Korper (On the contact of elastic solids);Hertz;J Reine Angewandte Math,1882
3. Draft standard DIN 69051-4, Publication date:1989-04—Machine tools; ball screws; computation of static and dynamic load ratings and life.
4. Changsen W. Analysis of rolling bearings. London: Mechanical Engineering Publications Ltd; 1991.
5. Viventi F. Valutazione dell’influenza del ricircolo nel moto delle viti a ricircolazione di sfere. Final dissertation facoltà di Ingegneria, Università di Perugia A.A. 2001/2002.