Timing Belt Sizes: Pitch, Width and Tooth Count Explained
A timing belt reference becomes much easier to read when you separate tooth pitch, profile, width and length.
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Sizing and measurement
Practical advice for vehicle, machinery and equipment belts. Explore the application, understand the specification and find the right starting point for your next replacement.
Guides in this category
7 guides
Appliance Belts: Find the Model, Reference and Profile
Appliance names often conceal several different product versions.
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Mower Belt Size Markings: How to Read the Specification
A number on a mower belt may be an OEM part reference, a commercial belt designation or a production code. Decode it using the maker’s catalogue rather than...
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Can You Use a Mower Belt That Is Slightly Longer or Shorter?
Choose the specified belt or a documented replacement. A small difference in a catalogue number may reflect a measurement convention, but a genuinely different belt size should not...
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Belt Measurements Explained: Outside, Inside and Datum Length
A length on a belt listing needs a reference convention. Understanding that convention helps explain why a measured old belt may not match the number in a catalogue.
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Lawn Mower Belt Size Guide: The Ordering Checklist
A belt size is more than a length. Use this checklist to reconcile the machine reference, belt section and measurement convention before placing an order.
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How to Measure a Lawn Mower Belt: Length and Width
Measurements can help check a belt specification when markings are unreadable. Record how you measured it, because a bare length without a measurement convention can be misleading.
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