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Belt Hog

Belt Alignment

Belt Hog

Laser Belt Alignment Tool

The Acoem Belt Hog uses the pulley groove as the reference, allowing you to achieve a precise belt alignment which reduces wear, bearing failures and vibrations.

Laser Belt and Pulley Alignment Tool for Precise Sheave Alignment

The Acoem Belt Hog is a fast and accurate tool for aligning the sheaves of belt-driven machines. Using a simple laser and target system, it quickly identifies misalignment and helps correct angular, parallel, and sheave issues with minimal effort.

Compact and easy to operate, the Belt Hog improves belt life, reduces vibration, and boosts machine efficiency. It’s a must-have for maintenance teams looking to optimize performance and prevent costly downtime.

How It Works

The Belt Hog system consists of two laser heads that measure each other’s relative position by simultaneously projecting and receiving laser beams. Each laser head is equipped with rare-earth magnets and interchangeable, spring-loaded pins (called V-Guide Tips) for easy mounting to the sheave.

Unlike other alignment tools, the Belt Hog mounts directly in the center of the sheave groove—exactly where the belts run. This method provides a more accurate alignment than mounting on the shoulders of the sheaves, which can vary in thickness and lead to errors.

Once the sensors are mounted, the user can detect and correct the following forms of misalignment, in order:

Vertical Angular Misalignment (Twist)

If the laser lines deviate from being parallel to the center line on the targets, there is a vertical angular misalignment.

Horizontal Offset Alignment

The laser line is parallel to but not centered on the cener line, there is a horizontal offset misalignment.

Horizontal Angle Alignment

If the laser line on the stationary side is parallel to the center line but is not centered, it indicates a horizontal angular misalignment.

Verify that the laser line is precisely aligned with the center line on both the movable and stationary sides.

Vertical Angular Misalignment (Twist)

If the laser lines deviate from being parallel to the center line on the targets, there is a vertical angular misalignment.

Horizontal Offset Misalignment

The laser line is parallel to but not centered on the cener line, there is a horizontal offset misalignment.

Horizontal Angle Misalignment

If the laser line on the stationary side is parallel to the center line but is not centered, it indicates a horizontal angular misalignment.

Vertical Angular Misalignment (Twist)

If the laser lines deviate from being parallel to the center line on the targets, there is a vertical angular misalignment.

Horizontal Offset Alignment

The laser line is parallel to but not centered on the cener line, there is a horizontal offset misalignment.

Horizontal Angle Alignment

If the laser line on the stationary side is parallel to the center line but is not centered, it indicates
a horizontal angular
misalignment.

Verify that the laser line is precisely aligned with the center line on both the movable and stationary sides.

Benefits of Our V-Belt Alignment Tool

Precision at the Source

Measures directly from the pulley grooves where belts operate for true alignment accuracy.

Intuitive Design

So simple to use, it requires no training or prior experience.

Efficient, Solo Operation

Align pulleys quickly and accurately with just one person.

No Belt Removal Needed

Save time by measuring with the belts in place.

Full Misalignment Detection

Simultaneously checks vertical angle, horizontal angle, and offset for complete alignment.

Flexible Range, Adaptable Fit

Accurately measures spans from 6 inches to 20 feet. Measures pulley diameters 3” and larger.

What's Included

Each Belt Hog Tool is delivered with the following included hardware:

  • x2 Belt Hog Laser Transmitters
  • x2 Boxes of V-Guide Tips:
    • V-Guide 1: 5-2mm Short Rod
    • V-Guide 2: 5-22mm Long Rod
    • V-Guide 3: 22-40mm Short Rod
    • V-Guide 4: 22-40mm Long Rod
  • 4 Batteries, LR 03 1.5V (AAA)
  • Hard Case

The Belt Hog can also be used to align timing belt pulleys and chain sprockets. Timing Belt Guides are available as an alternative to the V-Guides for these types of alignments:

V-Guides

Timing Belt Guides

Downloads

Belt Hog Brochure

Operator’s Guide

Safety Sheet

V-Guide Selector Chart

Videos

Play Video

Belt Hog Sheave Alignment | ACOEM

Want to Learn More About the Belt Hog?

Click either of the buttons below to request a formal quote or request a demo with an Acoem USA representative.