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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.

T2.5

Tooth pitch: 2.5 mm
Teeth z = 12 - 60
Stand. diameters De (mm): 9.00 - 47.25

T5

Tooth pitch: 5.0 mm
Teeth z = 10 - 60
Stand. diameters De (mm): 15.05 - 94.65

T10

Tooth pitch: 10.0 mm
Teeth z = 12 - 60
Stand. diameters De (mm): 36.35 - 189.10

AT5

Tooth pitch: 5.0 mm
Teeth z = 10 - 60
Stand. diameters De (mm): 14.65 - 94.25

AT10

Tooth pitch: 10.0 mm
Teeth z = 12 - 60
Stand. diameters De (mm): 36.35 - 189.10

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.

Pulleys 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

Pulleys and Clamping Bushes - Preview

Pulleys and Clamping Bushes

TYMA CZ Catalogue

Czech and English (PDF 3.64 MB)