Description
Representative image shown. Actual product appearance varies by size, bore, and configuration. Refer to the specifications table for exact dimensions of this part number.
21XL-PS8S Timing Pulley Bar Stock, 21 Teeth, XL Pitch
The 21XL-PS8S is machine-ready timing pulley bar stock with 21 teeth in XL (0.200 in trapezoidal) pitch, steel. Pulley stock lets a machine shop turn finished custom pulleys without cutting teeth: part off a blank, bore, and finish.
Specifications
| Specification | Value |
|---|---|
| Part Number | 21XL-PS8S |
| Teeth | 21 |
| Pitch | XL (0.200 in trapezoidal) |
| Maximum Usable Length | 8 in |
| Shank Length | 0.75 in |
| Material | Steel (no sintered or powdered metal) |
| Weight | 3.049 lb |
| Country of Origin | United States. ISO 9001:2015 certified manufacturing. |
Applications
- Machining custom-width timing pulleys to order
- Prototype and short-run drive development
- Special bores, hubs, and flange configurations not available as catalog parts
Cross Reference
The 21XL-PS8S interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Stock Drive Products (SDP/SI) | A 6C 2-21XL08 |
| Neuman | 21XL-PS-8S |
| York | 21XL-P-8S |
| On Drives | XL-8PS-021 |
| Ametric | XL 21 ST |
| Powerdrive | 21XL-PS8S |
Always verify dimensions and bore size before substituting part numbers across manufacturers.
Buying in bulk? Save on volume.
Multi-unit and OEM quantities qualify for volume discounts. Call or email for a quantity quote.
Frequently Asked Questions
How is pulley bar stock like the 21XL-PS8S used?
Cut a blank to the face width you need, machine the bore, hub, and any flange seats, and you have a custom pulley with factory-quality teeth. It is the standard route for prototypes and non-catalog widths.
Does the 21XL-PS8S replace the Stock Drive Products A 6C 2-21XL08?
Yes. Published interchange data crosses the 21XL-PS8S directly to the Stock Drive Products A 6C 2-21XL08, as well as Neuman 21XL-PS-8S, York 21XL-P-8S, On Drives XL-8PS-021. Verify dimensions and bore before ordering.
Does the 21XL-PS8S ship from Houston?
Yes. Stock items ship same day from our Houston, Texas warehouse. Call (888) 203-2358 to confirm availability.
All third-party part numbers and trademarks referenced are the property of their respective owners. References are for compatibility identification only and do not imply affiliation or endorsement.
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