Belt alignment devices
A belt alignment tool is a laser-based instrument for driven machines that transmit power by belt or chain. It measures the positional misalignment between the drive-side and driven-side pulleys (or sprockets). A transmitter unit is mounted on the side face or groove of one pulley, and a laser line is projected onto a target or receiver unit on the other pulley. Angular misalignment (twist and tilt) and parallel misalignment (offset) are then checked visually and adjusted. Mounting options include a type that attaches to the pulley side face with magnets and a type where a guide fits into the V-belt groove. Laser colors are red and green. Green is easier to see in bright locations. Reducing misalignment lowers belt and pulley wear, vibration, and noise, so these tools are used for equipment installation and routine maintenance.
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Belt alignment devices
TKBA 40
Model: TKBA 40
A laser-based alignment tool that fits directly into the grooves of V-belt pulleys. Equipped with four sizes of V-guides.
SKF
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Belt alignment devices
TKBA 11
Model: TKBA 11
Red laser belt alignment tool that attaches magnetically to the side of pulleys. Consists of one transmitter unit and three targets.
SKF
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Belt alignment devices
TKBA 21
Model: TKBA 21
A device for laser belt alignment using a red laser, consisting of a transmitter unit and a receiver unit.
SKF
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Belt alignment devices
TKBA 31
Model: TKBA 31
A belt alignment tool using a highly visible green laser that can measure up to 6 m outdoors.
SKF
How to choose Belt alignment devices
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1. Measuring distance suited to pulley spacing
Each tool has an upper limit on the pulley center distance it can measure, and some listed products cover up to 6 m. Check the shaft center distance of the target equipment and select a model that fits with some margin. For long equipment spans or outdoor use, also confirm that the laser remains easy to see.
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2. Angular misalignment measurement accuracy
Angular misalignment, meaning twist or tilt between pulleys, is a main cause of uneven belt wear and belt derailment. Compare the tool's angular measurement accuracy with the allowable angle specified by the belt manufacturer to confirm it is fine enough. The longer the shaft center distance, the larger the end deviation caused by even a small angular misalignment.
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3. Parallel misalignment measurement accuracy
This is the accuracy for measuring the amount by which pulley faces are offset parallel to the axial direction (offset). The allowable offset differs by belt type, so confirm that the readable accuracy is sufficient for the allowable value of the belt in use. Accuracy varies by model, so compare the specified values.
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4. Compatibility of mounting method and pulley shape
The magnet mounting method requires a flat, magnetic pulley side face. For the groove-fit method, check that the V-guide size or adapter matches the target groove. Whether a model can be used with multi-rib pulleys or sprockets also varies by model.
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5. Selection of laser color and configuration
Green lasers are easier to see than red lasers in bright locations, making them suitable for outdoor work or long equipment spans. Configurations include a transmitter combined with a target, and a two-unit setup of transmitter and receiver. Also consider whether adjustments are needed at the same time as belt tension adjustment.
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6. Continuous battery operating time
Listed products have continuous operating times of about 6 to 20 hours, and some models run longer. When adjusting multiple equipment units in succession, or when batteries are difficult to replace on site, a model with longer operating time avoids interruptions to work. Also confirm the compatible battery type.
This guide was written by AI based on the listed products' documents and specification items. Check each manufacturer's documents before adopting.