Description
21XL037-DFP3 Timing Pulley, 21 Teeth, XL Pitch
The 21XL037-DFP3 is a 21-tooth XL (0.200 in trapezoidal) timing pulley with a 1/4 in Bore, machined from acetal, built for 0.375 in wide belts. Machined from solid stock, never sintered or powdered metal.
$50 minimum order on drive components. Mix and match any pulleys, bushings, sheaves, sprockets, and accessories in your cart to reach the $50 minimum. Questions? Call (888) 203-2358.
Specifications
| Specification | Value |
|---|---|
| Part Number | 21XL037-DFP3 |
| Teeth | 21 |
| Pitch | XL (0.200 in trapezoidal) |
| For Belt Width | 0.375 in |
| Pitch Diameter | 1.3369 in |
| Outside Diameter | 1.3169 in |
| Flange Diameter | 1.5625 in |
| Bore | 1/4 in Bore |
| Face Width | 0.6875 in |
| Overall Length | 0.813 in |
| Hub Diameter | 0.87 in |
| Flange Material | Acetal |
| Material | Acetal (no sintered or powdered metal) |
| Weight | 0.031 lb |
| Country of Origin | United States. ISO 9001:2015 certified manufacturing. |
Applications
- Instrumentation, office equipment, and precision positioning drives
- 3D printers and desktop CNC equipment
- Robotics, medical devices, and packaging machinery
Belt Compatibility
The 21XL037-DFP3 runs XL (0.200 in trapezoidal) belts in 0.375 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 21XL037-DFP3 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Stock Drive Products (SDP/SI) | A 6M 3-21DF037 |
| York | 21XL037-DDF |
| Plastok | 21XLDF |
| Powerdrive | 21XL037-DFP3 |
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
What belts fit the 21XL037-DFP3 pulley?
XL (0.200 in trapezoidal) timing belts in 0.375 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the 21XL037-DFP3 replace the Stock Drive Products A 6M 3-21DF037?
Yes. Published interchange data crosses the 21XL037-DFP3 directly to the Stock Drive Products A 6M 3-21DF037, as well as York 21XL037-DDF, Plastok 21XLDF, Powerdrive 21XL037-DFP3. Verify dimensions and bore before ordering.
Does the 21XL037-DFP3 ship from Houston?
Yes. Stock items ship same day from our Houston, Texas warehouse. Call (888) 203-2358 to confirm availability.
Need a quote on 21XL037-DFP3?
Houston warehouse, same-day shipping on stock items.
Call (888) 203-2358All 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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