ER NUTS INNER THREADS
NUT
ER 8
ER 11
ER 16
ER 20 ER 25
ER 32
ER 40
ER 50
ER 60 ER 90
10 x 0,75 13 x 0,75 19 x 1,0 24 x 1,0 30 x 1,0
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MINI
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14 x 0,75 22 x 1,5
25 x 1,5
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HEXAGONAL
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22 x 1,5
25 x 1,5
32 x 1,5
40 x 1,5
50 x 1,5 64 x 2,0 70 x 1,5
110 x 1,5
STANDARD
ASSEMBLING OF COLLETS IN ER NUTS
Fig. 1
Fig. 2
RIGHT PROCEDURE TO ASSEMBLE THE COLLET IN THE NUT A) Insert the collet into the nut inclining it untill the collet groove matches with nut excentric seat (picture 1).
WRONG PROCEDURE TO ASSEMBLE THE COLLET IN THE NUT D) Inserting the collet into the spindle seat without first assembling it with the nut (picture 2) irremediably compromises the whole integrity :
• excentric in the nut breaks because of the pressure made by the collet. Such a breakage will not permit anymore the extraction of the collet that then will stay locked in its seat. • during the nut screwing, broken excentric residuals cause scrapeson conic grindedpart of the collet compromising the exact matching.
B) Once the collet has been mounted in the nut (point A), screw the assembly on the spindle.
C) After insert the tool into the collet, is suggested to use the suitable wrench to complete the tightening.
631 ACCESSORIES AND SPARE PARTS
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