Description
QD18XXH200 Timing Pulley, 18 Teeth, XXH Pitch
The QD18XXH200 is a 18-tooth XXH (1.250 in trapezoidal) timing pulley. It mounts with an industry-standard bushing, sold separately, machined from cast 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 | QD18XXH200 |
| Teeth | 18 |
| Pitch | XXH (1.250 in trapezoidal) |
| For Belt Width | 2 in |
| Pitch Diameter | 7.162 in |
| Outside Diameter | 7.042 in |
| Flange Diameter | 7.875 in |
| Bore | Accepts SK bushing (not included) |
| Face Width | 2.563 in |
| Overall Length | 2.563 in |
| Construction | Quick Disconnect Hub |
| Flange Material | Steel |
| Material | Cast Iron (no sintered or powdered metal) |
| Finish | Black Oxide |
| Weight | 12 lb |
| Country of Origin | China |
Applications
- Instrumentation, office equipment, and precision positioning drives
- 3D printers and desktop CNC equipment
- Robotics, medical devices, and packaging machinery
Belt Compatibility
The QD18XXH200 runs XXH (1.250 in trapezoidal) belts in 2 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The QD18XXH200 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Martin | 18XXH200 SK |
| TB Woods® | 18XXH200 |
| Regal Rexnord (Browning®) | 18XXH200SK |
| Jason Industrial | 18XXH200SK |
| Ametric | 18 XXH 200 |
| Powerdrive | QD18XXH200 |
| Continental (ContiTech) | 18XXH200-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 QD18XXH200 pulley?
XXH (1.250 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 QD18XXH200 replace the Martin 18XXH200 SK?
Yes. Published interchange data crosses the QD18XXH200 directly to the Martin 18XXH200 SK, as well as TB Woods 18XXH200, Regal Rexnord 18XXH200SK, Jason Industrial 18XXH200SK. Verify dimensions and bore before ordering.
Does the QD18XXH200 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 QD18XXH200?
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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