Description
25-5MX25-6FS5 Powerhouse® MX Timing Pulley, 25 Teeth, 5MX Pitch
The 25-5MX25-6FS5 is a 25-tooth 5 mm MX high torque timing pulley with a 3/8 in minimum plain bore, machined from steel with a black oxide finish, built for 25mm wide belts. Machined from solid stock, never sintered or powdered metal. Powerhouse® MX pulleys run on the same high torque drives as Gates Poly Chain® GT® Carbon™ and Continental Synchrochain Carbon belts.
Specifications

Dimension key for this construction type. Values for this part number are in the table below.
| Specification | Value |
|---|---|
| Part Number | 25-5MX25-6FS5 |
| Teeth | 25 |
| Pitch | 5 mm MX high torque |
| For Belt Width | 25mm |
| Pitch Diameter | 1.5665 in |
| Outside Diameter | 1.5215 in |
| Flange Diameter | 1.781 in |
| Bore | 3/8 in minimum plain bore |
| Face Width | 1.28 in |
| Overall Length | 1.68 in |
| Hub Diameter | 1.18 in |
| Construction | Standard Hub |
| Flange Material | Steel |
| Material | Steel (no sintered or powdered metal) |
| Finish | Black Oxide |
| Weight | 0.691 lb |
| Country of Origin | United States. ISO 9001:2015 certified manufacturing. |
Applications
- High torque, low speed drives replacing roller chain
- Air cooled heat exchanger (ACHE) fan drives
- Oil and gas pumping equipment
- Material handling and conveyor drives
Belt Compatibility
The 25-5MX25-6FS5 runs 5 mm MX high torque belts in 25mm width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 25-5MX25-6FS5 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Powerdrive | 25-5MX25-6FS5 |
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 25-5MX25-6FS5 pulley?
5 mm MX high torque timing belts in 25mm width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the 25-5MX25-6FS5 replace the Powerdrive 25-5MX25-6FS5?
Yes. Published interchange data crosses the 25-5MX25-6FS5 directly to the Powerdrive 25-5MX25-6FS5. Verify dimensions and bore before ordering.
Does the 25-5MX25-6FS5 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 25-5MX25-6FS5?
Houston warehouse, same-day shipping on stock items.
Call (888) 203-2358Powerhouse® is a registered trademark of its owner. Poly Chain®, GT®, and Carbon™ are trademarks of Gates Corporation. Synchrochain is a trademark of Continental. 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.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.