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Timing pulleys

High precision achieved through high quality
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  1. 09194101 Timing pulley 16T2.5 for timing belt width 6 mm
    Timing pulley 16T2,5 for timing belt width 6 mm
    Number of articles in this product: 16
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  2. 09194103 Timing pulley 20T2.5 for timing belt width 10 mm
    Timing pulley 20T2,5 for timing belt width 10 mm
    Number of articles in this product: 16
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  3. 09193101 Timing bars metric pitch T2.5
    Timing bars metric pitch T2.5
    Number of articles in this product: 24
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  4. 09190205 Flange T2.5
    Flange T2.5
    Number of articles in this product: 23
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  5. 09194105 Timing pulley 21T5 for timing belt width 10 mm
    Timing pulley 21T5 for timing belt width 10 mm
    Number of articles in this product: 16
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  6. 09194107 Timing pulley 27T5 for timing belt width 16 mm
    Timing pulley 27T5 for timing belt width 16 mm
    Number of articles in this product: 17
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  7. 09194109 Timing pulley 36T5 for timing belt width 25 mm
    Timing pulley 36T5 for timing belt width 25 mm
    Number of articles in this product: 16
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  8. 09193103 Timing bars metric pitch T5
    Timing bars metric pitch T5
    Number of articles in this product: 45
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  9. 09190201 Flange AT5/T5
    Flange AT5/T5
    Number of articles in this product: 45
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  10. 09194111 Timing pulley 31T10 for timing belt width 16 mm
    Timing pulley 31T10 for timing belt width 16 mm
    Number of articles in this product: 15
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  11. 09194113 Timing pulley 40T10 for timing belt width 25 mm
    Timing pulley 40T10 for timing belt width 25 mm
    Number of articles in this product: 15
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  12. 09194115 Timing pulley 50T10 for timing belt width 32 mm
    Timing pulley 50T10 for timing belt width 32 mm
    Number of articles in this product: 12
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Manufacturing and geometry of the perfect timing belt pulleys for your application

A belt drive consists of a belt and at least two pulleys. The positive drive pulley (also called synchronous pulley) has a concentric centre hole and a toothed circumferential surface. The tooth geometries of the timing belt and -pulley (profile & pitch) must be exactly matched to ensure a clean form fit of the two contact partners. Depending on the application and task, toothed pulleys can be equipped with additional guide elements, the flanges, to guide the toothed belt. In addition to the conventional machining processes of milling, turning, etc., primary moulding processes such as casting and powder-metallurgical pressing and sintering are also often used for larger quantities, series or large-series production. For the production all metallic and non-metallic semifinished materials are suitable, as long as they have sufficient strength and can be easily machined. The common materials used by Angst+Pfister are aluminium alloys, steel and cast iron as well as the plastics PA, PE and POM.

If we do not have the desired timing pulley in stock, or it is a special design, we can manufacture and rework it according to your specific requirements.

Send us your inquiry here!

For the manufacturing process and correct functionality of the timing pulley the pitch circle, tip circle and root circle diameters are relevant

The pitch circle diameter dW describes the arc line in synchronous drives that forms the position of the tension cords in the timing belt when it is wrapped around the pulley. The pitch circle diameter is therefore placed outside the pulley contour and is usually marked with a semicolon line.

The tip circle diameter dK is the diameter of the circumferential surface of the timing belt pulley on which the timing belt is supported. This diameter can be measured directly with a suitable measuring device.

The root circle diameter dF forms the arc line connecting the bottom of the tooth gap.

Toothed pulleys – the following should be considered

Toothed pulleys used in drives with belt speeds of more than 30m/s must be balanced.

The toothed width of a toothed pulley with flanges should be selected slightly larger than the belt width. As a guide for the additional width, 1/4 to 1/5 of the pitch can be selected. For a 20 mm wide timing belt with profile AT10, for example, a toothed width of approx. 22m is selected.