The Graco S20.13.0187.4 Hardened Shaft is a precision-machined internal component designed for reliable performance in diaphragm pumps.
The Graco S20.13.0187.4 Hardened Shaft is designed for use in specific air-operated double diaphragm pumps that require a 20 mm shaft assembly. It plays a critical role in maintaining balanced reciprocating motion and ensuring long-term durability.
Compatibility may vary depending on pump configuration, material type, and revision. Always verify with your pump manual or existing part number before purchase.
| Part Number | Graco S20.13.0187.4 |
|---|---|
| Diameter | 20 mm |
| Length | 13-3/16 inches |
| Material | 4140 alloy steel |
| Hardening | Heat-treated for enhanced wear resistance |
| Cut Tolerance | CDA (Controlled Dimensional Accuracy) |
| Application | Internal shaft for diaphragm pump assemblies |
This shaft acts as a central connection between diaphragms inside the pump, enabling synchronized movement during operation. Its hardened surface reduces wear and extends service life, making it suitable for demanding industrial environments.
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