Page 1206 - Benma | Blue book 5.0

Work/emergency clamping arbors Tel. +41 44 736 63 63 • Fax +41 44 736 63 00 • sales@brw.ch
247500 Emergency expanding mandrel
With collet-chuck shaft
Design
A practical and economical solution for inside clamping. The unhardened head is finished according
to the needed size; the shaft is ground to measure, and expansion takes place from the front by
means of a hexagon key.
Expandability + 0.2 / -0.3 mm.
Order ID Shaft Ø D D min. L Across flats hex
mm mm mm mm mm
247500.0300 W20 26.5 10 35 6
247500.0400 W20 50.5 15 40 6
247500.0600 W25 33.9 15 37 6
247520 Emergency expanding mandrel
With cylinder shaft and surface
Application
For collet chuck, chuck, vice etc.
Order ID Shaft Ø D D min. l L Across flats hex
mm mm mm mm mm mm
247520.0100 12 16.5 10 25 25 4
247520.0200 20 25.5 15 35 35 6
247520.0300 20 50.5 15 40 40 6
247520.0400 30 80.5 15 50 50 6

Brütsch/Rüegger Tools Ltd. • Heinrich Stutz-Strasse 20 • P.O. Box • CH-8902 Urdorf • www.brw.ch 1197