Overview and comparison
What are AT profile timing pulleys?
AT (Advanced Technology) is an enhanced version of the T profile with greater tooth depth and better lateral tension resistance. AT10 has a 10 mm pitch — identical to T10 — but with improved performance under higher loads and in drives with a slack span. Widely used in linear drives, CNC and automation.
AT advantages over T: greater tooth engagement depth; better resistance to vibration and shock; lower tendency to tooth skip under overload.
AT profile vs. T profile — comparison
| Criterion | AT profile (AT10) | T profile (T10) |
|---|---|---|
| Pitch | 10 mm | 10 mm |
| Tooth depth | Greater | Smaller |
| Vibration resistance | Higher | Lower |
| Tooth-skip tendency | Lower | Higher |
| Widths | 31 / 47 / 66 mm | 31 mm |
| Material | Aluminium | Aluminium |
| Application | CNC, linear drives, robotics | Standard automation |
Technical data
Technical data — AT10, width 31 mm (F=21 mm)
| Code | Type | Teeth | de (mm) | Df (mm) | Dm (mm) | F (mm) | L (mm) | d (mm) | Flange № | Kg |
|---|---|---|---|---|---|---|---|---|---|---|
| AT 10 15 | 2F | 15 | 45.90 | 51 | 32 | 21 | 31 | 8 | 211 | 0.12 |
| AT 10 16 | 2F | 16 | 49.10 | 54 | 35 | 21 | 31 | 8 | 212 | 0.13 |
| AT 10 18 | 2F | 18 | 55.45 | 60 | 40 | 21 | 31 | 8 | 214 | 0.17 |
| AT 10 20 | 2F | 20 | 61.80 | 66 | 46 | 21 | 31 | 8 | 216 | 0.21 |
| AT 10 22 | 2F | 22 | 68.20 | 75 | 52 | 21 | 31 | 8 | 218 | 0.25 |
| AT 10 24 | 2F | 24 | 74.55 | 83 | 58 | 21 | 31 | 8 | 219 | 0.29 |
| AT 10 26 | 2F | 26 | 80.90 | 87 | 60 | 21 | 31 | 8 | 220 | 0.36 |
| AT 10 28 | 2F | 28 | 87.25 | 93 | 60 | 21 | 31 | 8 | 222 | 0.40 |
| AT 10 30 | 2F | 30 | 93.65 | 97 | 60 | 21 | 31 | 8 | 223 | 0.44 |
| AT 10 32 | 2F | 32 | 100.00 | 106 | 65 | 21 | 31 | 10 | 224 | 0.49 |
| AT 10 36 | 2F | 36 | 112.75 | 119 | 70 | 21 | 31 | 10 | 225 | 0.62 |
| AT 10 40 | 2F | 40 | 125.45 | 131 | 80 | 21 | 31 | 10 | 226 | 0.77 |
| AT 10 44 | 2 | 44 | 138.20 | — | 88 | 21 | 31 | 10 | — | 1.00 |
| AT 10 48 | 2 | 48 | 150.95 | — | 95 | 21 | 31 | 16 | — | 1.10 |
| AT 10 60 | 2 | 60 | 189.15 | — | 110 | 21 | 31 | 16 | — | 1.70 |
Technical data — AT10, width 47 mm (F=37 mm)
| Code | Type | Teeth | de (mm) | Df (mm) | Dm (mm) | F (mm) | L (mm) | d (mm) | Flange № | Kg |
|---|---|---|---|---|---|---|---|---|---|---|
| AT 10 18 | 2F | 18 | 55.45 | 60 | 40 | 37 | 47 | 10 | 214 | 0.25 |
| AT 10 20 | 2F | 20 | 61.80 | 66 | 46 | 37 | 47 | 12 | 216 | 0.32 |
| AT 10 22 | 2F | 22 | 68.20 | 75 | 52 | 37 | 47 | 12 | 218 | 0.39 |
| AT 10 24 | 2F | 24 | 74.55 | 83 | 58 | 37 | 47 | 12 | 219 | 0.47 |
| AT 10 28 | 2F | 28 | 87.25 | 93 | 60 | 37 | 47 | 12 | 222 | 0.64 |
| AT 10 30 | 2F | 30 | 93.65 | 97 | 60 | 37 | 47 | 12 | 223 | 0.74 |
| AT 10 36 | 2F | 36 | 112.75 | 119 | 70 | 37 | 47 | 16 | 225 | 1.06 |
| AT 10 40 | 2F | 40 | 125.45 | 131 | 80 | 37 | 47 | 16 | 226 | 1.32 |
| AT 10 44 | 2 | 44 | 138.20 | — | 88 | 37 | 47 | 16 | — | 1.61 |
| AT 10 48 | 2 | 48 | 150.95 | — | 95 | 37 | 47 | 16 | — | 1.93 |
| AT 10 60 | 2 | 60 | 189.15 | — | 110 | 37 | 47 | 16 | — | 3.00 |
Technical data — AT10, width 66 mm (F=56 mm)
| Code | Type | Teeth | de (mm) | Df (mm) | Dm (mm) | F (mm) | L (mm) | d (mm) | Flange № | Kg |
|---|---|---|---|---|---|---|---|---|---|---|
| AT 10 18 | 2F | 18 | 55.45 | 60 | 40 | 56 | 66 | 10 | 214 | 0.42 |
| AT 10 20 | 2F | 20 | 61.80 | 66 | 46 | 56 | 66 | 12 | 216 | 0.52 |
| AT 10 24 | 2F | 24 | 74.55 | 83 | 58 | 56 | 66 | 12 | 219 | 0.74 |
| AT 10 28 | 2F | 28 | 87.25 | 93 | 60 | 56 | 66 | 12 | 222 | 0.96 |
| AT 10 30 | 2F | 30 | 93.65 | 97 | 60 | 56 | 66 | 12 | 223 | 1.17 |
| AT 10 36 | 2F | 36 | 112.75 | 119 | 70 | 56 | 66 | 16 | 225 | 1.64 |
| AT 10 40 | 2F | 40 | 125.45 | 131 | 80 | 56 | 66 | 16 | 226 | 2.00 |
| AT 10 44 | 2 | 44 | 138.20 | — | 88 | 56 | 66 | 16 | — | 2.36 |
| AT 10 48 | 2 | 48 | 150.95 | — | 95 | 56 | 66 | 16 | — | 2.83 |
| AT 10 60 | 2 | 60 | 189.15 | — | 110 | 56 | 66 | 16 | — | 4.37 |
Note: dp = (z × 10) / π. AT10 with 20 teeth: dp = (20×10)/π = 63.66 mm. i = z2/z1.
AT10 timing pulleys
Download PDF ↓Frequently Asked Questions
What is the difference between AT10 and T10?
AT10 has identical pitch (10 mm) to T10 but greater tooth depth — better engagement, higher resistance to vibration and load. AT profile is preferred for more demanding conditions.
Can AT10 pulleys be used with T10 belts?
No — AT and T profiles have different tooth forms and are NOT interchangeable. Use AT belt with AT pulley and T belt with T pulley.
Why is AT10 offered in 3 widths?
Width determines the power capacity of the drive. The wider pulley (66 mm) transmits approximately 2× the power of the narrow version (31 mm) at the same tooth count. Select based on required torque.