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Catalogue Technical Specification

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GN411.2 Centring Bore Clamp

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Type K with clamping balls

Type S with clamping segments

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Product Description

GN411.2 Centring Bore Clamp

With centring bore clamps, GN 411.2, workpieces can be positioned centrally and clamped from the inside of the bore.

In addition they offer the following advantages:

Precise self centering

Repetitive accuracy: ±0,025

Accuracy of concentricity: ±0,05

Solid and stable clamping through either 3 or 6 contact points on the workpiece

Clamping of workpieces with uneven or irregular surface (such as castings)

Distortion free clamping

Reduced height

Can be fitted in any position

Large adjustable range

Down force clamping

Centring bore clamps GN411.1 for hydraulic or pneumatic operation on request.


Steel - hardened, blackened

Clamping balls / segments - hardened, blank, ground

* size (where d1=11,7) is only available for type K

Standard part number GN411 has been changed! Because of a change of the standard part number your input is no longer valid. Your search was automatically changed to the new standard part number GN411.2

SELECT HasTableOnOff FROM Series WHERE SeriesID=1003

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GN411.2 Centring bore clamps workpieces centrally positioned inside

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