Description
25-3P15-6FA3 Powerhouse® Timing Pulley, 25 Teeth, 3P Pitch, 1/4 in Bore
The 25-3P15-6FA3 is a 25-tooth 3 mm Powerhouse® curvilinear timing pulley with a 1/4 in finished bore, machined from aluminum with a clear anodized finish, built for 15mm wide belts. Machined from solid stock, never sintered or powdered metal. The Powerhouse® modified curvilinear profile carries roughly twice the load of a standard curvilinear pulley of the same size.
$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 | 25-3P15-6FA3 |
| Teeth | 25 |
| Pitch | 3 mm Powerhouse® curvilinear |
| For Belt Width | 15mm |
| Pitch Diameter | 0.9399 in |
| Outside Diameter | 0.9099 in |
| Flange Diameter | 1.06 in |
| Bore | 1/4 in finished bore |
| Face Width | 0.742 in |
| Overall Length | 1.057 in |
| Hub Diameter | 0.625 in |
| Construction | Standard Hub |
| Set Screws | 2 x 8-32 |
| Flange Material | Aluminum |
| Material | Aluminum (no sintered or powdered metal) |
| Finish | Clear Anodized |
| Weight | 0.0531 lb |
| Country of Origin | India |
Applications
- Higher load synchronous drives in compact spaces
- Industrial automation and conveyor drives
- Packaging and material handling equipment
Belt Compatibility
The 25-3P15-6FA3 runs 3 mm Powerhouse® curvilinear belts in 15mm width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 25-3P15-6FA3 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Gates® | 3MR-25S-15 |
| Stock Drive Products (SDP/SI) | A 6A53-025DF1508 |
| York | 25-3GT15-1A X 1/4 |
| W.M. Berg | TP3A3W15-25 |
| Powerdrive | 25-3P15-6FA3 |
| Continental (ContiTech) | 25-3P15-6FA3 |
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 25-3P15-6FA3 pulley?
3 mm Powerhouse® curvilinear timing belts in 15mm width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the 25-3P15-6FA3 replace the Gates 3MR-25S-15?
Yes. Published interchange data crosses the 25-3P15-6FA3 directly to the Gates 3MR-25S-15, as well as Stock Drive Products A 6A53-025DF1508, York 25-3GT15-1A X 1/4, W.M. Berg TP3A3W15-25. Verify dimensions and bore before ordering.
Does the 25-3P15-6FA3 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 25-3P15-6FA3?
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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