This combination of ceramic ball bearing on the fore vacuum side and permanently magnetic radial bearing
on the high vacuum side provides a particularly robust bearing concept.
According to the definition of contact stiffness, the Hertz contact stiffness of ball radial bearing
can be obtained as:
Further, each individual axle is mounted to a radial bearing
that provides a tighter steering system for a more stable platform.
This configuration can be used as a radial bearing
as it develops positive radial force and stiffness (negative axial force and stiffness).
Because the armature is a large radial bearing
, performance in such critical areas as stiffness and runout are said to be superior to conventional, longer spindles.
The motor actually serves as the radial bearing
, allowing a shorter overall length of the assembly.
They also must be identical in diameter and radial bearing
surface to avoid bending pressures and stresses in the wheel structure.
Tenders are invited for SUPPLY OF RADIAL BEARING
& THRUST BEARING
The configuration is suitable for radial bearing
application developing positive radial stiffness having negative axial stiffness.
It is considered that in each radial bearing
the elastic force system is reduced to a unique resultant force situated in a median plane of the landing spindle perpendicular on the longitudinal axis of the crankshaft.
The design is compacted by the radial bearing
and the electric motor being integrated into a single unit.