Stock Timing Belt Pulleys
Stock Timing Belt Pulleys
Texas Belting maintains an extensive inventory of stock timing belt pulleys available for same-day shipment in most cases. All stock pulleys are precision-machined from aluminum with pilot bores, ready for finish boring and keyway cutting to your shaft specifications. Stock pulleys are available for all major polyurethane timing belt profiles plus imperial XL, L, and H series.
For custom materials (stainless steel, carbon steel, Delrin), custom finishes, zero-backlash tooth gaps, or non-standard configurations, see high precision pulleys. For self-tracking belt applications, grooved stock pulleys are available in TK, ATK, BATK, and HK13 profiles.
- 12 series in stock (T, AT, XL, L, H, self-tracking)
- Tooth counts from 10 to 72 (varies by series)
- Standard material: aluminum 6061-T6
- Pilot bore with H7 tolerance (standard)
- Same-day shipping on most sizes
- Custom bore machining available (2 to 5 day add)
- Flanged and unflanged options
- Steel, stainless, and Delrin also available
Stock Pulley Availability by Series
The table below lists specific tooth counts available from stock for each standard belt profile. All stock pulleys are aluminum with pilot bore.
| Series | Pitch | Available Tooth Counts | Face Widths |
|---|---|---|---|
| T5 | 5mm | 12, 15, 18, 20, 24, 30, 36, 40, 48, 60 | 15mm, 21mm, 30mm |
| T10 | 10mm | 12, 15, 18, 20, 24, 30, 36, 40, 48, 60, 72 | 21mm, 30mm, 40mm, 56mm |
| AT3 | 3mm | 15, 18, 20, 24, 30, 36 | 10mm, 15mm, 22mm |
| AT5 | 5mm | 14, 15, 18, 20, 24, 30, 36, 40, 48, 60 | 22mm, 32mm, 40mm |
| AT10 | 10mm | 18, 20, 22, 24, 27, 30, 36, 40, 48, 60, 72 | 32mm, 40mm, 60mm |
| XL | 0.200" | 10, 12, 14, 15, 16, 18, 20, 24, 30, 36, 40, 48, 60, 72 | 19mm, 32mm |
| L | 0.375" | 12, 14, 15, 18, 20, 24, 30, 36, 40, 48, 60 | 32mm, 59mm |
| H | 0.500" | 14, 16, 18, 20, 22, 24, 28, 30, 36, 40, 48, 60, 72 | 32mm, 44mm, 59mm, 84mm |
Self-Tracking Pulley Stock
Stock pulleys with machined V-grooves for self-tracking and ARC-Power belt applications.
| Series | Tooth Counts | Face Widths | Belt Type |
|---|---|---|---|
| TK10K13 | 20 to 60 teeth | 55mm, 105mm | T-Series self-tracking |
| ATK10K6 | 20 to 60 teeth | 55mm, 105mm | AT-Series self-tracking |
| BATK10 | 20 to 60 teeth | 37 to 105mm | ARC-Power BATK |
| HK13 | 20 to 60 teeth | 55mm, 105mm | ARC-Power HK13 |
Ordering Format
When ordering, specify: [Material] [Width Over Hub] [Pitch] / [Tooth Count] - [Flanges] hub [Hub Diameter] x [Hub Width]
Example: AL 27 T1/5" / 24-2 hub 27 x 8
Pulley Material Options
| Code | Material | Properties | When to Specify |
|---|---|---|---|
| AL | Aluminum 6061-T6 | Lightweight, corrosion-resistant, easy to machine | Standard for most applications (most common) |
| VA | Stainless steel 303/304 | Full corrosion resistance | Food processing, washdown, chemical exposure |
| ST | Carbon steel | High strength, heavy-duty | High-torque drives, large pulleys |
| POM | Acetal (Delrin) | Lightweight, non-marking, non-magnetic | Cleanroom, electronics, non-conductive |
Frequently Asked Questions
Stock pulleys are available for T5 and T10, AT3, AT5, and AT10, XL, L, and H, plus four self-tracking profiles (TK10K13, ATK10K6, BATK10, HK13). Tooth counts range from 10 to 72 depending on the series. All standard stock pulleys are aluminum with pilot bore.
Stock pulleys with pilot bore typically ship same day when ordered before 2:00 PM CST. Finished bore machining (to your shaft size with keyway) adds 2 to 5 business days depending on quantity. Contact Texas Belting at 888-203-2358 for current availability and expedited shipping options.
Stock pulleys ship with a pilot bore (undersized, H7 tolerance) that must be machined to your shaft diameter. Finished bore options with keyway and set screw are available. Texas Belting can machine the bore and keyway before shipping, or you can have your machine shop finish the bore. Contact us at 888-203-2358 to specify your shaft size.
Pilot bore pulleys are supplied with an undersized bore (typically 6 to 10mm depending on pulley size) with H7 tolerance. Finished bores are machined to your specified shaft diameter with H7 tolerance and standard keyway per DIN or ANSI specifications.
Yes. Stock pulleys with pilot bore are designed to be machined to your specifications. Common modifications include bore sizing, keyway cutting, set screw holes, hub modifications, and surface finish treatments. Texas Belting can perform these modifications or ship pilot bore pulleys for your machine shop to finish.
Flanged pulleys are recommended for standard timing belt drives to prevent the belt from walking off the pulley. At least one pulley in the drive should have flanges. Self-tracking belts with V-guide profiles do not require flanged pulleys, which simplifies the drive design and reduces cost.
Yes. Texas Belting can manufacture custom pulleys to match original equipment specifications. Provide the pulley dimensions, tooth count, pitch, bore size, and any special features, and we can produce a replacement in aluminum, steel, or stainless steel. Call 888-203-2358 with your pulley requirements.
Stock pulleys are standard aluminum pulleys in common tooth counts and face widths, available for fast shipping. High precision pulleys offer additional options including zero-backlash tooth gaps, stainless steel or Delrin materials, custom surface finishes, precision-ground runout tolerances (0.025mm TIR), and any non-standard configuration. Choose stock for speed, precision for performance-critical applications.
Need Stock Pulleys Fast?
Send us your profile, tooth count, and shaft diameter. We will confirm stock availability and ship same day when possible.