Woodman Casting 37 May 2026

| Specification | Typical Value | | --- | --- | | | ASTM A48 Class 30 Gray Iron or Ductile Iron (80-55-06) | | Weight | 37 to 42 lbs (16.8 – 19 kg) | | Outer Diameter | 7.25 inches (184.15 mm) | | Inner Bore | 3.7 inches (93.98 mm) – Hence the "37" | | Wall Thickness | 0.5 inches (12.7 mm) nominal | | Hardness (Brinell) | 187–241 HB | | Mounting Holes | 6x M12 on a 6.0" bolt circle |

The term "Woodman Casting 37" typically refers to a specific aftermarket or OEM replacement casting used in heavy machinery, vintage engine blocks, or specialized pump housings. While "Woodman" may refer to a defunct foundry, a brand specializing in refurbished parts, or a specific pattern number, the "37" designation usually indicates a size class (e.g., 3.7-inch bore or 37mm shaft compatibility) or a revision of a classic design. woodman casting 37

A: Yes. Foundries accept 3D-printed PLA patterns for lost-foam casting. This is the fastest way to get a single custom casting. Looking for more casting guides? Check our series on "Precision Iron for Antique Machinery." | Specification | Typical Value | | ---

the Woodman Casting 37 if it has oil galleries—sand gets trapped in the porous iron. Conclusion: Is the Woodman Casting 37 Right for Your Project? The Woodman Casting 37 represents an era of over-engineered, durable American iron. For the restorer of vintage industrial equipment, it is irreplaceable. For the modern fabricator, it offers a known-quantity blank with predictable machining behavior. Check our series on "Precision Iron for Antique Machinery

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