Description
30L050-6FS6 Timing Pulley, 3 Teeth, L Pitch
The 30L050-6FS6 is a 3-tooth L (0.375 in trapezoidal) timing pulley with a 1/2 in minimum plain bore, machined from ductile iron with a black oxide finish, built for 0.5 in wide belts. Machined from solid stock, never sintered or powdered metal.
Specifications

Dimension key for this construction type. Values for this part number are in the table below.
| Specification | Value |
|---|---|
| Part Number | 30L050-6FS6 |
| Teeth | 3 |
| Pitch | L (0.375 in trapezoidal) |
| For Belt Width | 0.5 in |
| Pitch Diameter | 3.581 in |
| Outside Diameter | 3.551 in |
| Flange Diameter | 3.8 in |
| Bore | 1/2 in minimum plain bore |
| Face Width | 0.75 in |
| Overall Length | 1.25 in |
| Hub Diameter | 2.25 in |
| Construction | Standard Hub |
| Flange Material | Steel |
| Material | Ductile Iron (no sintered or powdered metal) |
| Finish | Black Oxide |
| Weight | 2.396 lb |
| Country of Origin | United States. ISO 9001:2015 certified manufacturing. |
Applications
- Instrumentation, office equipment, and precision positioning drives
- 3D printers and desktop CNC equipment
- Robotics, medical devices, and packaging machinery
Belt Compatibility
The 30L050-6FS6 runs L (0.375 in trapezoidal) belts in 0.5 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 30L050-6FS6 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Dodge® | 30L050-MPB |
| Martin | 30L050 |
| Regal Rexnord (Browning®) | 30LB050 |
| Mitsuboshi | 30L050-6FS6 |
| Stock Drive Products (SDP/SI) | A 6C 4-30DFB5016 |
| McMaster-Carr | 6495K108 |
| Powerdrive | 30L050-6FS6 |
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 30L050-6FS6 pulley?
L (0.375 in trapezoidal) timing belts in 0.5 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the 30L050-6FS6 replace the Dodge 30L050-MPB?
Yes. Published interchange data crosses the 30L050-6FS6 directly to the Dodge 30L050-MPB, as well as Martin 30L050, Regal Rexnord 30LB050, Mitsuboshi 30L050-6FS6. Verify dimensions and bore before ordering.
Does the 30L050-6FS6 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 30L050-6FS6?
Houston warehouse, same-day shipping on stock items.
Call (888) 203-2358All 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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