Description
72XL037-6WA6 Timing Pulley, 72 Teeth, XL Pitch, 1/2 in Bore
The 72XL037-6WA6 is a 72-tooth XL (0.200 in trapezoidal) timing pulley with a 1/2 in finished bore, machined from aluminum with a clear anodized finish, built for 0.375 in wide belts. Machined from solid stock, never sintered or powdered metal.
Specifications

Dimension key for this construction type. Values for this part number are in the table below.
| Specification | Value |
|---|---|
| Part Number | 72XL037-6WA6 |
| Teeth | 72 |
| Pitch | XL (0.200 in trapezoidal) |
| For Belt Width | 0.375 in |
| Pitch Diameter | 4.5837 in |
| Outside Diameter | 4.5637 in |
| Bore | 1/2 in finished bore |
| Face Width | 0.563 in |
| Overall Length | 1 in |
| Hub Diameter | 1.5 in |
| Construction | Lightened Pulley with Standard Hub |
| Set Screws | 2 x 10-32 |
| Flange Material | Aluminum |
| Material | Aluminum (no sintered or powdered metal) |
| Finish | Clear Anodized |
| Weight | 0.75 lb |
| Country of Origin | India |
Applications
- Instrumentation, office equipment, and precision positioning drives
- 3D printers and desktop CNC equipment
- Robotics, medical devices, and packaging machinery
- Weight-sensitive drives (webbed, lightened construction)
Belt Compatibility
The 72XL037-6WA6 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 72XL037-6WA6 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Mitsuboshi | 72XL037-6WA6 |
| Stock Drive Products (SDP/SI) | A 6A 3-72NF03716 |
| Neuman | 72XL037 X 1/2 6W |
| York | 72XL037-3A X 1/2 |
| Powerdrive | 72XL037-6WA6 |
Always verify dimensions and bore size before substituting part numbers across manufacturers.
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Multi-unit and OEM quantities qualify for volume discounts. Call or email for a quantity quote.
Frequently Asked Questions
What belts fit the 72XL037-6WA6 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 72XL037-6WA6 replace the Mitsuboshi 72XL037-6WA6?
Yes. Published interchange data crosses the 72XL037-6WA6 directly to the Mitsuboshi 72XL037-6WA6, as well as Stock Drive Products A 6A 3-72NF03716, Neuman 72XL037 X 1/2 6W, York 72XL037-3A X 1/2. Verify dimensions and bore before ordering.
Does the 72XL037-6WA6 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 72XL037-6WA6?
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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