Abstract
Some experiments on the frictional resistances of linear ball bearings called ball bushings were performed.
The experimental results obtained are as follows :
(1) The maximum and average values of frictional resistance increase approximateiy in proportion to bearing load.
(2) The maximum and average values in the case of rolling elements contacting with shaft in three-tracks are greater than the values in two-tracks.
(3) The maximum frictional resistance is obtained when rolling elements pass from the load-side to the unload-side in tracks.
