Description
QD24XH400 Timing Pulley, 24 Teeth, XH Pitch
The QD24XH400 is a 24-tooth XH (0.875 in trapezoidal) timing pulley. It mounts with an industry-standard bushing, sold separately, machined from ductile iron with a black oxide finish, built for 4 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 | QD24XH400 |
| Teeth | 24 |
| Pitch | XH (0.875 in trapezoidal) |
| For Belt Width | 4 in |
| Pitch Diameter | 6.6845 in |
| Outside Diameter | 6.5745 in |
| Flange Diameter | 7.25 in |
| Bore | Accepts SF bushing (not included) |
| Face Width | 4.688 in |
| Overall Length | 4.969 in |
| Construction | Quick Disconnect Hub |
| Flange Material | Steel |
| Material | Ductile Iron (no sintered or powdered metal) |
| Finish | Black Oxide |
| Weight | 18.905 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 QD24XH400 runs XH (0.875 in trapezoidal) belts in 4 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The QD24XH400 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Martin | 24XH400 SF |
| TB Woods® | 24XH400 |
| Regal Rexnord (Browning®) | 24XH400SF |
| Jason Industrial | 24XH400SF |
| Ametric | 24 XH 400 |
| Powerdrive | QD24XH400 |
| Continental (ContiTech) | 24XH400-SF |
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 QD24XH400 pulley?
XH (0.875 in trapezoidal) timing belts in 4 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the QD24XH400 replace the Martin 24XH400 SF?
Yes. Published interchange data crosses the QD24XH400 directly to the Martin 24XH400 SF, as well as TB Woods 24XH400, Regal Rexnord 24XH400SF, Jason Industrial 24XH400SF. Verify dimensions and bore before ordering.
Does the QD24XH400 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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