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Acugrip arbors and chucks function by expanding or compressing the sleeve material within its elastic limit under hydraulic pressure. The hydraulic system is integral and may be manually or power actuated.
Figures 1 and 2 illustrate the basic principles of typical manually operated
arbors and chucks. The actuator screw is rotated clockwise to advance the intensifier
piston assembly to pressurise the system. The sleeves are expanded in the case
of an arbor and compressed in the case of a chuck over the gripping area between
the seals, they do not expand or contract beyond the seal area. Extreme accuracy
in component location is assured as the sleeves expand or contract under equalised
hydraulic pressure uniformly from their geometric axis.
Accuracy – Acugrip high precision hydraulic arbors and chucks are manufactured and guaranteed to run within 0,005mm (0.0002”) T.I.R. although component variables may affect this.
If component parameters allow, it is possible to supply to a run-out tolerance of 0,0025mm (0.0001”) T.I.R. |
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