Description
Representative image shown. Actual product appearance varies by size, bore, and configuration. Refer to the specifications table for exact dimensions of this part number.
QD90-8M-30 Powerhouse® HTD Timing Pulley, 9 Teeth, 8M Pitch
The QD90-8M-30 is a 9-tooth 8 mm HTD® compatible timing pulley. It mounts with an industry-standard bushing, sold separately, machined from ductile iron with a black oxide finish, built for 3mm wide belts. Machined from solid stock, never sintered or powdered metal. Powerhouse® HTD pulleys fit drives using HTD® curvilinear belts of the same pitch and width.
Specifications

Dimension key for this construction type. Values for this part number are in the table below.
| Specification | Value |
|---|---|
| Part Number | QD90-8M-30 |
| Teeth | 9 |
| Pitch | 8 mm HTD® compatible |
| For Belt Width | 3mm |
| Pitch Diameter | 9.023 in |
| Outside Diameter | 8.971 in |
| Bore | Accepts SK bushing (not included) |
| Face Width | 1.5 in |
| Overall Length | 1.5 in |
| Construction | Quick Disconnect Hub |
| Material | Ductile Iron (no sintered or powdered metal) |
| Finish | Black Oxide |
| Weight | 14.057 lb |
| Country of Origin | China |
Applications
- HTD curvilinear belt drives on industrial equipment
- Conveyors, packaging, and warehouse automation
- Replacing worn pulleys on existing HTD drives
Belt Compatibility
The QD90-8M-30 runs 8 mm HTD® compatible belts in 3mm width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The QD90-8M-30 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Dodge® | P90-8M-30-SK |
| Martin | P908M30-SK |
| TB Woods® | P908M30 |
| Regal Rexnord (Browning®) | B908M30-SK |
| Mitsuboshi | QD90-8M-30 |
| Jason Industrial | P90-8M-30-SK |
| Masterdrive | P90-8M-30-SK |
| Ametric | 8M90QD30.SK |
| Grainger | 809RE4 |
| Powerdrive | QD90-8M-30 |
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 QD90-8M-30 pulley?
8 mm HTD® compatible timing belts in 3mm width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the QD90-8M-30 replace the Dodge P90-8M-30-SK?
Yes. Published interchange data crosses the QD90-8M-30 directly to the Dodge P90-8M-30-SK, as well as Martin P908M30-SK, TB Woods P908M30, Regal Rexnord B908M30-SK. Verify dimensions and bore before ordering.
Does the QD90-8M-30 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 QD90-8M-30?
Houston warehouse, same-day shipping on stock items.
Call (888) 203-2358Powerhouse® is a registered trademark of its owner. HTD® is a registered trademark of Gates Corporation. 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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