|
|
| The
newly developed "ETA+" ball screw from Steinmeyer comes
very close to providing the ideal linkage between motor and slide
- that is, an extremely stiff, yet highly efficient (low friction)
connection |
 |
| with
no reversing error. The revolutionary ETA+ design, the details of
which are proprietary, accomplishes a 50% increase in rigidity while
at the same time a 67% decrease
in friction! And,
reversing error has been eliminated altogether, which means that the
ETA+ ball screw has a perfectly linear behavior regardless of speeds
and direction of motion. Thus, control errors, which the machine tool
world has come to accept, may now be dramatically reduced. |
 |
This
performance break-through is easily demonstrated with ball-bar tests,
where the "quadrant changing" error is reduced to a fraction
of the value achieved with conventional ball screws. Besides this,
the stiffness and low friction of the ETA+ ball screw allow considerably
better dynamics. |
| for
more information please refer to the
eta+ newsletter (PDF, approx. 230 KB) |
|
|
