For a number of measuring tasks it may be required to extend (bridge) the range between the measuring point and the installation of the sensor (e.g. dial gauge, interactive probe) or to divert it.
Our extension and angular heads with 4 mm or 10 mm strokes accept the required sensor in a mounting bore with a diameter of 8 mm. Our extension insertions with 4 mm or 10 mm strokes are connected through the M8 thread to the extension head (0°) or angular head (30°, 45°, 60° or 90°). The flexible rod extension with a extension insertion diameter of 4 mm makes contact with the workpiece. The motion of the rod extension (stroke 4 mm or 10 mm) is transmitted to the sensor via a angular element in the angular head. Please note when ordering that the angular head, extension head and extension insertion have the same stroke (4mm or 10 mm).
The following types are available:
Series 1123: angular heads stroke 4 mm, immersion depth 33 mm to mid stroke (long version)
Series 1124: angular heads stroke 4 mm, immersion depth 23 mm to mid stroke (long version)
Series 1125: angular heads stroke 10 mm, immersion depth 33 mm to mid-stroke
Series 1127: extension insertions stroke 4 mm (matches series 1123 and 1124)
Series 1128: extension insertions stroke 10 mm (matches series 1125)
Clamping shaft with a diameter of 8 H7 for sensors. The clamping screw for fastening the sensor to the extension or angular head can be used from both sides.
The flat insert for angular heads is included in delivery. The spherical insert, which is normally installed at the sensor, must be replaced by this flat insert so that transmission errors do not occur at the angular element.
The rod extension of the extension insertions can be delivered with threads M 2.5 (design G) or flat (design P). The inserts for design G can be threaded-in with different contact geometries. With design P, contact can be made directly at the workpiece or a clamping probes can be installed. The rod extension of the extension insertions (sliding guide) has an anti-rotation lock.
On request, the extension insertions can be delivered with an additional spring force, either
- for pressure (design D, amplification of the measuring force), or
- for pull (design Z, lifting force).
The spring force for horizontal installation is approximately 1 N.
The angular error for stroke 4 mm is a maximum of 5 µ
The angular error for stroke 10 mm is a maximum of 8 µ
The extension insertions can be supplied with bellows (except for a shaft length of 15 mm) to prevent contamination.