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T20 Pilot Bore Timing Pulleys for Polyurethane Belts

T20 timing pulleys are the basic type of pulleys for polyurethane belts with a trapezoidal T20 profile. They are made from aluminium alloy as unbored or with a pre-drilled hole. Designed according to DIN 7721.

The pulleys are supplied as a semi-finished product and the bore must be modified before mounting the pulleys on the shafts.

T20 timing pulleys in use

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Pulleys Fields of Use

The T20 timing pulleys are designed for all types of T20 polyurethane belts with pitch 10.0 mm.

They are typically used in machine tools, packaging machines, printers, single-purpose machines, in the food, paper and glass industry and many other industries.

Pulleys Material

Aluminum alloy.

For the use with Taper Lock bushing, aluminum alloy must not be used, but steel.

Parameter Standard
Surface roughness ISO 254
Balance quality grade VDI 2060, ISO 1940

Pulleys Code Description

Example:
71 T20/24-2 (Type 6F, Al Alloy)

Code Part Description
71

Total width of pulley in mm (for 50T20 belts - belt width of 50 mm)

T20

Profile 

24

Number of pulley teeth

2

Number of side rails

6F

Type of construction

Al Alloy

Pulley material

Notice

The catalog data sheets serve only as a recommendation for the types and dimensions of aluminum alloy pulleys for standard widths and numbers of teeth. All T20 pulleys are custom made only.

Timing pulleys in the T versions can also be made to order in the "SE" reduced backlash version and the "0 backlash" / "0-Lücke" version with zero backlash.

Documents for Download

Pulleys and Clamping Bushes - Preview

Pulleys and Clamping Bushes

TYMA CZ Catalogue

Czech and English (PDF 3.64 MB)


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