Description
68-3M09-6A4 Powerhouse® HTD Timing Pulley, 68 Teeth, 3M Pitch, 5/16 in Bore
The 68-3M09-6A4 is a 68-tooth 3 mm HTD® compatible timing pulley with a 5/16 in finished bore, machined from aluminum with a clear anodized finish, built for 9mm 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.
$50 minimum order on drive components. Mix and match any pulleys, bushings, sheaves, sprockets, and accessories in your cart to reach the $50 minimum. Questions? Call (888) 203-2358.
Specifications

Dimension key for this construction type. Values for this part number are in the table below.
| Specification | Value |
|---|---|
| Part Number | 68-3M09-6A4 |
| Teeth | 68 |
| Pitch | 3 mm HTD® compatible |
| For Belt Width | 9mm |
| Pitch Diameter | 2.5565 in |
| Outside Diameter | 2.5265 in |
| Bore | 5/16 in finished bore |
| Face Width | 0.5 in |
| Overall Length | 0.875 in |
| Hub Diameter | 1.25 in |
| Construction | Standard Hub |
| Set Screws | 2 x 8-32 |
| Material | Aluminum (no sintered or powdered metal) |
| Finish | Clear Anodized |
| Weight | 0.319 lb |
| Country of Origin | United States. ISO 9001:2015 certified manufacturing. |
Applications
- HTD curvilinear belt drives on industrial equipment
- Conveyors, packaging, and warehouse automation
- Replacing worn pulleys on existing HTD drives
Belt Compatibility
The 68-3M09-6A4 runs 3 mm HTD® compatible belts in 9mm width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 68-3M09-6A4 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Stock Drive Products (SDP/SI) | A 6A23-068NF0910 |
| York | 68-3M-09 X 5/16 |
| Powerdrive | 68-3M09-6A4 |
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 68-3M09-6A4 pulley?
3 mm HTD® compatible timing belts in 9mm width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the 68-3M09-6A4 replace the Stock Drive Products A 6A23-068NF0910?
Yes. Published interchange data crosses the 68-3M09-6A4 directly to the Stock Drive Products A 6A23-068NF0910, as well as York 68-3M-09 X 5/16, Powerdrive 68-3M09-6A4. Verify dimensions and bore before ordering.
Does the 68-3M09-6A4 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 68-3M09-6A4?
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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