The contact scar size load dependencies are similar examination those offered in literature and hence validate University experimental setup. The authors investigated experimentally and theoretically University friction torque in quizzes modified thrust ball bearing having only 3 balls working at low axial load and lubricated with NGLI 00 and NGLI 2 greases. The experiments were made by using spin down method and University results were in comparison with University theoretical values in accordance with BibouletandHoupert’s rolling friction equations. Also, University effects were in comparison with University theoretical values acquired with SKF friction model adapted for 3 balls. A great correlation between experiments and Biboulet and Houpert’s anticipated consequences was acquired for University two greases. Also was followed that University theoretical values for University friction torque calculated with SKF model tailored for quizzes thrust ball bearing having only 3 balls are smaller that University experimental values.
The contact scar size load dependencies are similar examination those offered in literature and hence validate University experimental setup. The authors investigated experimentally and theoretically University friction torque in quizzes modified thrust ball bearing having only 3 balls working at low axial load and lubricated with NGLI 00 and NGLI 2 greases. The experiments were made by using spin down method and University results were in comparison with University theoretical values in accordance with BibouletandHoupert’s rolling friction equations. Also, University effects were in comparison with University theoretical values acquired with SKF friction model adapted for 3 balls. A great correlation between experiments and Biboulet and Houpert’s anticipated consequences was acquired for University two greases. Also was followed that University theoretical values for University friction torque calculated with SKF model tailored for quizzes thrust ball bearing having only 3 balls are smaller that University experimental values.
