AT20 Pilot Bore Timing Pulleys for Polyurethane Belts
AT20 timing pulleys are the basic type of pulleys for polyurethane belts with a trapezoidal AT20 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 AT20 timing pulleys are designed for all types of AT20 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)
Related Products
CONTI SYNCHROFLEX AT20 Timing Belts
Lenght range Lp (mm): 1000 - 1960
CONTI SYNCHROFLEX AT20 GEN III Heavy-Duty Timing Belts
Lenght range Lp (mm): 1000 - 1960
AT20 Polyurethane Open-Ended Timing Belts
Measuring Instruments
Our professional-quality special tools and measuring instruments will assist you in maintaining and fitting drive components.
Question about the Pulleys Category
Do not hesitate to contact us with any questions about products in this category.
