T and AT Pilot Bore Timing Pulleys for Polyurethane Belts
T and AT (for PU Belts) timing pulleys are the basic type of pulleys for T and AT belts. Their design is according to DIN 7721.
They are made of aluminium alloy with a pilot bore or unbored.
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 T and AT timing pulleys are designed for all types of T and AT polyurethane belts.
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.
Other materials to order.
| Parameter | Standard |
|---|---|
| Surface roughness | ISO 254 |
| Balance quality grade | VDI 2060, ISO 1940 |
Caution
The design for Taper housings must be made to order, aluminum alloy must not be used, but steel must be used.
Timing pulleys in the T and AT versions can also be made to order in the "SE" reduced backlash version and the "0-Lücke" / "0 backlash" version with zero backlash.
Pulley Code Description
Example:
47 T10/24-2 (Al Alloy)
| Code Part | Description |
|---|---|
| 47 |
Total width of pulley in mm (for 32T10 belts - belt width 32 mm) |
| T10 |
Profile |
| 24 |
Number of pulley teeth |
| 2 |
Number of side rails |
| Al Alloy |
Pulley material |
Documents for Download
Dimensions and Parameters of T and AT Pilot Bore Timing Pulleys for Polyurethane Belts
TYMA CZ Data Sheets
Czech and English (PDF 1.55 MB)

