Shaft alignment devices
Shaft alignment instruments measure the misalignment (parallel offset and angular offset) between two shafts before they are coupled, for example a motor connected to a pump, fan or gearbox. Measuring units are mounted on both shafts with brackets, and as the shafts are rotated, a laser and detector (CCD, PSD or similar) read the change in relative position. The instrument then displays the machine foot correction values (shim thickness and lateral movement). Models are available with a dedicated display unit or operated by an app on a smartphone or tablet. Some models support soft foot (foot lift) checks, vertical shafts, machine train alignment of multiple units, and spacer shafts. They are used for alignment during installation and maintenance.
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Shaft alignment devices
Shaft Alignment System TKSA 51
Model: TKSA 51
A shaft alignment system operated via an app on a tablet or smartphone.
SKF
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Shaft alignment devices
TKSA 41
Model: TKSA 41
Shaft alignment tool with display unit, supporting automatic measurement and soft foot checks, and featuring QR code reading.
SKF
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Shaft alignment devices
TKSA 71
Model: TKSA 71
A high-performance alignment tool with six apps, supporting horizontal and vertical shaft, machine train, and spacer shaft alignment.
SKF
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Shaft alignment devices
TKSA 71/PRO
Model: TKSA 71/PRO
Premium model of the TKSA 71 with additional offset brackets, slide brackets and magnetic base included. Supplied in a trolley case.
SKF
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Shaft alignment devices
Shaft Alignment Tool TKSA 11
Model: TKSA 11
A low-cost shaft alignment tool operated with a smartphone or tablet.
SKF
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Shaft alignment devices
Shaft Alignment Tool TKSA 31
Model: TKSA 31
The most affordable touchscreen shaft alignment tool.
SKF
How to choose Shaft alignment devices
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1. Measuring distance to suit shaft spacing
Measurement is not possible if the distance between the measuring units exceeds the instrument's measuring range. Estimate the mounting spacing of the two units across the coupling, and for long spacer shafts or large machines choose a model with ample margin under its upper limit.
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2. Measurement error against required accuracy
Measurement error is often stated as a combination of a percentage and a fixed value (μm), and the error band increases as the measured value grows. For equipment with small permissible misalignment, such as high-speed rotating machines, confirm that the error is sufficiently small relative to the allowable value.
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3. Checking the required rotation angle
Among the listed products, the minimum shaft rotation angle required for measurement varies from 40° to 180°. For equipment where it is difficult to rotate the shaft half a turn due to piping or surrounding structures, a model that measures with a smaller rotation angle is suitable.
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4. Shaft diameter and coupling height
Confirm the shaft diameter that can be fitted with standard brackets and the coupling height that standard rods can clear (55 mm in the listed example). For large-diameter shafts or large couplings, check whether extension chains (up to 320 mm) or extension rods (up to 175 mm) are available.
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5. Sensor type and operating device
The type of detection sensor and the wireless communication method affect measurement stability and how the instrument is operated. Choose between a dedicated display unit and an app on a personal smartphone or tablet, and check whether bringing such devices to the site is restricted.
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6. Site environment and portability
For outdoor sites or locations with water or dust, check the protection rating and operating temperature range. Total mass including the case ranges from 2.1 to 12.5 kg, and trolley-case models that include brackets are heavier, so select based on how the instrument will be transported.
This guide was written by AI based on the listed products' documents and specification items. Check each manufacturer's documents before adopting.