Description
QD18XH200 Timing Pulley, 18 Teeth, XH Pitch
The QD18XH200 is a 18-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 2 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 | QD18XH200 |
| Teeth | 18 |
| Pitch | XH (0.875 in trapezoidal) |
| For Belt Width | 2 in |
| Pitch Diameter | 5.0134 in |
| Outside Diameter | 4.9034 in |
| Flange Diameter | 5.563 in |
| Bore | Accepts SK bushing (not included) |
| Face Width | 2.563 in |
| Overall Length | 3.594 in |
| Construction | Quick Disconnect Hub |
| Flange Material | Steel |
| Material | Ductile Iron (no sintered or powdered metal) |
| Finish | Black Oxide |
| Weight | 7.672 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 QD18XH200 runs XH (0.875 in trapezoidal) belts in 2 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The QD18XH200 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Martin | 18XH200 SK |
| TB Woods® | 18XH200 |
| Regal Rexnord (Browning®) | 18XH200SK |
| Jason Industrial | 18XH200SK |
| Ametric | 18 XH 200 |
| Powerdrive | QD18XH200 |
| Continental (ContiTech) | 18XH200-SK |
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 QD18XH200 pulley?
XH (0.875 in trapezoidal) timing belts in 2 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the QD18XH200 replace the Martin 18XH200 SK?
Yes. Published interchange data crosses the QD18XH200 directly to the Martin 18XH200 SK, as well as TB Woods 18XH200, Regal Rexnord 18XH200SK, Jason Industrial 18XH200SK. Verify dimensions and bore before ordering.
Does the QD18XH200 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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