Cast Iron Flywheel | Cast Iron Flywheels for Sale (Discontinued)

Flywheel, 4-1/2" Diameter, 6 Curved Spokes

Cast iron flywheel
Highest quality made by Martin Model & Pattern
Fully Annealed

Part Number: 2758 (Discontinued)
Weight: 1.60 lb

Price: $31.95

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The flywheel casting is oversize so you can finish it to the specified diameter. This flywheel has a rim width of 0.875", a rim thickness of 0.291", a hub diameter of 0.794", and an overall hub length of 1.281".

Chris' Tips

Chris' Tips
All Martin Model & Pattern castings are fully annealed for easier machining. When molten iron is poured into a sand mold, it cools very quickly where it contacts the cold sand. Quick cooling being the formula for hardening iron, this results in a very hard surface, or skin, on the casting. It's commonly known that you must address this hard skin when you start machining a casting. But Martin Model castings go through another heat treat process. After the castings have cooled, they are once again heated to a high temperature, but this time they are cooled slowly. This ensures that the castings are evenly soft throughout, and that there is no hard skin on the surface

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