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.
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.
For the use with Taper Lock bushing, aluminum alloy must not be used, but steel.
|Balance quality grade
|VDI 2060, ISO 1940
Pulleys Code Description
71 T20/24-2 (Type 6F, Al Alloy)
Total width of pulley in mm (for 50T20 belts - belt width of 50 mm)
Number of pulley teeth
Number of side rails
Type of construction
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
TYMA CZ Data Sheets
Czech and English (PDF 160.60 kB)
TYMA CZ Catalogue
Czech and English (PDF 3.64 MB)
Question about the Pulleys Category
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