Spiral displacement machine i.e. spiral loader, for loading internal combustion engine of motor vehicle with air, has ball rollers exhibiting width between lateral surfaces with respect to diameter of ball basic shape

摘要

The machine (1) has a drive shaft (4) whose front end (10) is mounted in a radial roller bearing (12) with outer and inner rings (13, 14). Rolling bodies (15) of the bearing are designed as ball rollers. The rollers are designed as ball disks or rings with symmetric lateral surfaces, respectively. The surfaces are flattened by a ball basic shape and arranged parallel to each other. The rollers exhibit a width between the surfaces with respect to a diameter of the shape, where the width is reduced around 20 to 40 percentage. The bearing is designed as a double-row diagonal ball roller bearing.