Zu Testwellen
und zum üben in Englisch:

Zitat:Test Bars

These are new test bars all types lathes. These are for use when rebuilding a spindle, checking for run out, reinstalling a head stock straight to the ways, or to check a machine for way wear before you buy it. They are made out of hardened and precision ground tool steel. When put between centers, they show no run out with a tenths indidcator. All diameters are ground at the same time including the taper. The end of these test bars are threaded for a draw bar rod when installed in the spindle.

RDG schreibt über ihre angepriesene Welle_

Zitat:HBM 3MT LATHE PARALLEL TEST BAR
EVER WONDERED WHY YOU GET A SLIGHT
TAPER WHEN TURNING OVER A LONG DISTANCE.
ITS USUALLY BECAUSE YOUR TAILSTOCK IS NOT IN LINE.
TO ELIMINATE THIS THE TEST BAR FITS BETWEEN
YOUR HEAD STOCK -TAILSTOCK.
UNIT IS HARDENED AND GROUND PARALLEL
TO 0.0002" AND CENTERED AT BOTH ENDS.
SIMPLY PLACE BETWEEN CENTERS
SET UP DTI TO RUN ALONG LENGHT
RE-ALINE TAILSTOCK TO SUIT.
3MT TAPER AT ONE END

LENGTH WITHOUT TAPER 23 1/2 CM

TAPER LENGTH 9CM

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