All TESA inductive axial movement are mounted on a ball bearing with the exception of miniature models.
The ball bearing guidance system is insensitive to any radial force exerted on the probe housing. An anti-rotation guiding system ensures perfect movement of the mechanical guide.
The axial probe guide system is effectively protected against penetration of liquids (oils) or solidus (dust) by sealing bellows of high elastic quality. Under normal conditions, the standard nitrile elastomer bellows provide sufficient protection against oils and solvents. For applications where the probes remain in prolonged contact with coolants or lubricants and aggressive chemicals, Viton bellows are recommended. Viton is a fluoreleastomer resistant to the heat of oils and aggressive chemicals.
The retraction (lifting) of the measuring bolt rod can be made by the suction of air (vacuum) accumulated within the probe thanks to the airtightness provided by the sealing bellows.
This method of working principle does not use any mechanical device ensures the operation of the guidance system in an optimal manner. Similarly, the probe can be moved into its measuring position by a pneumatic activation (pressure), depending on the probe model.
Inserts (measuring inserts) can be replaced or exchanged. A wide choice of geometrical forms and sizes are available.
The measuring force can be adjusted by changing the spring, depending on the probe model.
The probes integrate an electronic amplifier of the signal without relying on any mechanical conversion device. Thus, these probes are distinguished by their high repeatability and very low hysteresis errors.
Measuring Probes
Dimensional inspection of medium and large batches of parts in multigauging fixtures represents a major application area where measuring speed coupled with a high level of accuracy is needed.
High precision inductive probes (type GTL-21 HP) are, for example, also suited for the measurement of gauge blocks. The display resolution can reach a digital step of 0,01 μm.
On request, TESA probes can be supplied in versions compatible with the electronic equipment of other suppliers.
Probes with Axial Movement, Ø 8 mm
Probes with Axial Movement, Ø 8 mm, with Activation of the Measuring Bolt by Pneumatic Pressure
USB, DC, Wireless Probes
Unbranded Axial Probes with Measuring Bolt Mounted on a Ball-bearing
Probe with Inclinable Lever
Universal FMS Probes
Standard Probes, ± 1 mm, 4,3 mm Travel (GT21)
Standard Probes, ± 1 mm, 4,3 mm Travel (GT22)
Standard Probes ± 2 mm, 4,3mm Bolt Travel, Linear Travel
Standard Probes, ± 2 mm, 10,3 mm Travel, with Long Retraction Travel
Standard Probes ± 5 mm, 10,3 mm Bolt Travel, Extended Range
GT 21 HP High Precision Probes, ± 0,2 mm, 4,3 mm Travel
GT 22 HP High Precision Probe, ± 0,2 mm, 4,3 mm Travel
Pneumatic Probes ± 1,5 mm, 3,2 mm Bolt Travel, Linear
Pneumatic Probes ± 2 mm, 10,3 mm Bolt Travel, with Long Retraction Travel
Pneumatic Probes ± 5 mm, 10,3 mm Bolt Travel, Long Travel
Wireless Probe ± 2 mm
Wireless Probe ± 5 mm, Large Measuring Range
Wireless Pneumatic Probe ± 1,5 mm
Wireless Pneumatic Probe ± 5 mm, Large Measuring Range
USB Probes ± 2 mm, 4,3 mm Range
USB Pneumatic Probes ± 1,5 mm, 3,1 mm Bolt Travel
USB Probes ± 5 mm, 10,3 mm Bolt Travel, Extended Measuring Range
DC Probes ± 2 mm (Output Signal in V)
DC Probes ± 5 mm (Output Signal in V), with Extended Measuring Range
DC Miniature Probes ± 1 mm (Output Signal in V)
DC Miniature Probes ± 0,3 mm (Output Signal in V)
GT 41 / GT 42 Miniature Probes, ± 0,3 mm, 0,7 mm Bolt Travel
GT 43 / GT 44 Miniature Probes ± 1,0 mm, 2,1 mm Bolt Travel
Probes, Unbranded Execution, Series 410 ± 1 mm, 2,5 mm Range, Short Body
Probes, Unbranded Execution, Series 160 ± 1 mm, 3,3 mm Bolt Travel, Short Body, Ø 6 mm
Probes, Unbranded Execution, Series 430 and 451, ± 0,5 mm, 1,25 et 2,10 mm Measuring Bolt Travel, Miniature
GT31 Lever Probes ± 0,3 mm, 0,3 mm Measuring Travel, Inclinable Lever
Probes with Parallel Guidance, ± 2 mm or ± 2,9 mm, 5,8 mm Measuring Travel
Probes with Parallel Guidance, ± 2 mm or ± 2,9 mm, 5,8 mm Measuring Travel – Protected Version
