Timing - Technical

Timing Belts and Pulleys

Timing Belt Drive Timing belt drives are toothed belts and pulleys which transmit power and speed accurately from a drive shaft to a driven shaft. The teeth of the belt fit into the grooves of a matching pulley. Correctly tensioned timing belt drives have no slippage and are often used in indexing applications.

The two main tooth styles offered by Small Parts and Bearings are the trapezoidal and the rounded tooth types. These types can be further broken down into their various pitches and proprietary styles.

Pitches and Styles offered by SPB
  • 2mm Pitch GTTM Rounded Tooth
  • 2.032mm Pitch MXL Trapezoidal Tooth (Classic Imperial Style)
  • 2.080mm Pitch 40DP Trapezoidal Tooth (Classic Imperial Style)
  • 2.5mm Pitch TrueMetricTM Trapezoidal Tooth
  • 3mm Pitch GTTM Rounded Tooth
  • 3mm Pitch HTDTM Rounded Tooth
  • 5mm Pitch GTTM Rounded Tooth
  • 5mm Pitch HTDTM Rounded Tooth
  • 5mm Pitch TrueMetricTM Trapezoidal Tooth
  • 5.080mm Pitch XL Trapezoidal Tooth (Classic Imperial Style)
  • 9.525mm Pitch L Trapezoidal Tooth (Classic Imperial Style)
  • 10mm Pitch TrueMetricTM Trapezoidal Tooth

Timing belts and pulleys can be found here in the Small Parts and Bearings online catalogue.

Materials used in Timing Belts
TrueMetric Timing Belt
Materials used in Timing Pulleys
Tensioning Timing Belts

Timing belts and pulleys can be found here in the Small Parts and Bearings online catalogue.

See also


You can purchase timing product from our Small Parts and Bearings Timing Online Store.


For a huge range of bearings online please visit the Bearing Shop Online Website.

Hobby and Engineering Supplies lists a smaller range of products and only the most popular items in each range. They also list many additional hobby specific categories.

For the best range of miniature and small bearings please try the Miniature Bearings Australia website. Miniature Bearings Australia also list a large variety of miniature engineering products.



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Small Parts and Bearings offers 124226 products in 3079 categories including ball bearings, roller bearings, thrust bearings, ceramic and ceramic hybrid bearings, stainless steel bearings, miniature bearings, linear bearings, shafting, oil seals and adhesives - see the full listing in the Online Catalogue. We have excellent Freight Rates within Australia and worldwide. We offer a choice of delivery with a signature required, or cheaper options with no signature required. The no signature required options are at the customer’s risk once the goods leave our store.

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