Product Description
A dead center is a precision machine tool accessory used in the tailstock of a lathe or grinder. It is a stationary, cone-shaped component that provides stable, non-rotating support to a workpiece, typically for turning, grinding, or inspection. It is called "dead" because it does not have internal bearings and therefore does not revolve with the workpiece.
Key Features and Function
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Stationary Support: A dead center's main purpose is to provide a fixed, rigid support point for the end of a long workpiece. The workpiece rotates around the tip of the center, creating friction.
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High Rigidity: Because it has no moving parts, a dead center offers superior rigidity compared to a live center. This makes it ideal for heavy-duty cuts, high-precision grinding, and applications where minimal deflection is crucial.
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Material and Durability: Dead centers are typically made from hardened tool steel and are often available with a carbide-tipped point for increased wear resistance and durability, especially when working with hard materials.
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Lubrication Required: The friction generated between the non-rotating center and the revolving workpiece necessitates the use of a high-pressure lubricant to prevent galling, overheating, and potential damage to the workpiece.
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