35
•
Massive large-dimensioned grey cast iron machine bed.
•
Sturdy cross ribbing makes the bed extremely stable and enables you to work with no oscilla-
tions.
•
The wide prismaticatic guide is ground.
•
Cross and longitudinal support with dove-tail guides and adjusting rails.
•
A stripper for chips and dirt on all guides.
•
Large-dimensioned, pivoting scale rings 0.05 mm exactness.
•
Main spindle sited in adjustable tapered roller bearings.
•
Ground main spindle nose.
•
Electronic infinitely-adjustable spindle speeds.
•
Manageable ergonomically-arranged controls.
•
Equipped with Emergency Off tracer.
•
Main switch with undervoltage release.
•
Motor switchable left-right.
•
Tailstock with its own prismaticatic guides.
•
Large torque on main spindle via gear reducing units.
9.2 Spindle
head
9.2.1 Main
spindle
The spindle head is firmly attached to the slide bars. In the spindle head, the work spindle is run on
two adjustable precision tapered roller bearings.
Should a readjustment of the bearings be neccessary, please proceed in the following man-
ner:
1. Loosen the locking screw in the adjustment nut. The adjustment nut is located at the rear end of
the work spindle.
2. Turn the adjustment nut in a clockwise direction until the bearings again run free of play (the
work spindle being easily able to be turned by hand).
3. Tighten the locking screw again.
Roller bearing adjusted too tightly become useless after a short period.
The spindle throat (capacity) is 20 mm.
For safety reasons the whole drive is completely covered with a protective hood and is fixed on to
the headstock.
9.
Description of modules
9.2.2 Electrical
parts