21.07.2013 Views

download complete PDF catalog - Maryland Metrics

download complete PDF catalog - Maryland Metrics

download complete PDF catalog - Maryland Metrics

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

.<br />

LOAD RATING<br />

The load rating of the Slide Way NV and NVT type varies depending on the direction of load.<br />

Table H-1 Load Rating<br />

Basic dynamic<br />

load rating<br />

Normal vertical direction<br />

Horizontal direction<br />

Reverse vertical direction<br />

1.0C<br />

0.9C<br />

0.8C<br />

Basic static<br />

load rating<br />

Normal vertical direction<br />

Horizontal direction<br />

Reverse vertical direction<br />

1.0Co<br />

0.9Co<br />

0.8Co<br />

The lord rating ratio above may be different for particular sizes. Please<br />

contact NB for further details.<br />

RATED LIFE<br />

H-5<br />

Figure H-8 Direction of Load<br />

Load in the reverse<br />

vertical direction<br />

The life of the Slide Way and Slide Table are calculated using the following equation:<br />

Rated life Life Time<br />

1 C 10 3<br />

L= 50<br />

fw P<br />

L: rated life, fw: load coefficient, C: basic dynamic load rating (N), P: load (N).<br />

For each coefficient, please refer to page Eng.-5<br />

Lh=<br />

<br />

Load in the normal<br />

vertical direction<br />

Load in the horizontal<br />

direction<br />

L 10<br />

2 s n1<br />

3<br />

60<br />

Lh: life time (hours), s: stroke (m), n1: number of cycles per minute (cpm)<br />

SLIDE GUIDE<br />

BALL SPLINE<br />

ROTARY BALL SPLINE<br />

STROKE BALL SPLINE<br />

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT<br />

STROKE BUSH<br />

SLIDEROTARYBUSH<br />

SLIDE SHAFT<br />

SLIDE WAY/GONIO WAY<br />

SLIDE TABLE<br />

MINIATURE SLIDE<br />

ACTUATOR SLIDE SCREW

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!