Measuring the Sprocket with a Ruler
Sprockets wear is measured by measuring the difference between new and used in 3 different positions between 2 teeth.
- H1 – is the tooth root
- H2 – the drive side of the tooth
- H3 – is the reverse drive side of the tooth
A pattern is the best method to determine this wear. Place the pattern across 2 teeth and measure each of the positions. Use the largest difference to calculate the percent worn
