Description
QD44-8M-85 Powerhouse® HTD Timing Pulley, 44 Teeth, 8M Pitch
The QD44-8M-85 is a 44-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 85mm 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 | QD44-8M-85 |
| Teeth | 44 |
| Pitch | 8 mm HTD® compatible |
| For Belt Width | 85mm |
| Pitch Diameter | 4.4112 in |
| Outside Diameter | 4.3592 in |
| Flange Diameter | 4.764 in |
| Bore | Accepts SD bushing (not included) |
| Face Width | 3.75 in |
| Overall Length | 3.75 in |
| Construction | Quick Disconnect Hub |
| Flange Material | Steel |
| Material | Ductile Iron (no sintered or powdered metal) |
| Finish | Black Oxide |
| Weight | 6.25 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 QD44-8M-85 runs 8 mm HTD® compatible belts in 85mm width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The QD44-8M-85 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Dodge® | P44-8M-85-SD |
| Martin | P448M85-SD |
| TB Woods® | P448M85 |
| Regal Rexnord (Browning®) | B448M85-SD |
| Mitsuboshi | QD44-8M-85 |
| Jason Industrial | P44-8M-85-SD |
| Masterdrive | P44-8M-85-SD |
| Ametric | 8M44QD85.SD |
| Grainger | 809R76 |
| Powerdrive | QD44-8M-85 |
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 QD44-8M-85 pulley?
8 mm HTD® compatible timing belts in 85mm width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the QD44-8M-85 replace the Dodge P44-8M-85-SD?
Yes. Published interchange data crosses the QD44-8M-85 directly to the Dodge P44-8M-85-SD, as well as Martin P448M85-SD, TB Woods P448M85, Regal Rexnord B448M85-SD. Verify dimensions and bore before ordering.
Does the QD44-8M-85 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 QD44-8M-85?
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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