AT20 Pilot Bore Timing Pulleys for Polyurethane Belts
ATThe AT profile is a further development of the T (Trapezprofil) profile. The teeth have a higher load capacity because of the increased tooth volume. The optimized flank angle results in improved tooth meshing. Here, too, a play-free belt/sprocket pairing that results in unsurpassed precision can be achieved.20 timing pulleys are the basic type of pulleys for polyurethane belts with a trapezoidal ATThe AT profile is a further development of the T (Trapezprofil) profile. The teeth have a higher load capacity because of the increased tooth volume. The optimized flank angle results in improved tooth meshing. Here, too, a play-free belt/sprocket pairing that results in unsurpassed precision can be achieved.20 profile. They are made from aluminium alloy as unbored or with a pre-drilled hole.
The pulleys are supplied as a semi-finished product and the bore must be modified before mounting the pulleys on the shafts.
Pulleys Fields of Use
The ATThe AT profile is a further development of the T (Trapezprofil) profile. The teeth have a higher load capacity because of the increased tooth volume. The optimized flank angle results in improved tooth meshing. Here, too, a play-free belt/sprocket pairing that results in unsurpassed precision can be achieved.20 timing pulleys are designed for all types of ATThe AT profile is a further development of the T (Trapezprofil) profile. The teeth have a higher load capacity because of the increased tooth volume. The optimized flank angle results in improved tooth meshing. Here, too, a play-free belt/sprocket pairing that results in unsurpassed precision can be achieved.20 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 AT20/24-2 (Type 6F, Al Alloy)
Code Part | Description |
---|---|
71 |
Total width of pulley in mm (for belts 50AT20 - belt width of 50 mm) |
AT20 |
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 AT20 pulleys are custom made only.
Timing pulleys in the AT 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
Dimensions and Parameters of AT20 Pilot Bore Timing Pulleys for Polyurethane Belts
TYMA CZ Data Sheets
Czech and English (PDF 160.70 kB)
Question about the Pulleys Category
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