Flywheel, 4" Diameter, 5 Straight Spokes, Bronze

Bronze flywheel
Highest quality made by Martin Model & Pattern
Fully Annealed

Part Number: 2757
Weight: 1.24 lb

Price: $43.95

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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 1.022", a rim thickness of 0.310", a hub diameter of 0.626", and an overall hub length of 1.079".

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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