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3-jaw lathe chuck is a versatile and commonly used tool in machining and metalworking. It is designed to hold cylindrical or round workpieces securely during machining operations. Here's an overview of its features, uses, and benefits:

Key Features

1. Three Self-Centering Jaws:https://www.yunwuchuck.cc/power-chuck/3-jaw-lathe-chuck

   • The jaws are mounted at 120° intervals around the chuck body.
   • They move in unison when the chuck key is turned, ensuring the workpiece is centered automatically.

2. Material:

   • Typically made of hardened steel or cast iron for durability and precision.

3. Mounting Options:

   • Can be mounted on the lathe spindle via threaded, cam-lock, or flanged connections.

4. Size:

   • Available in various sizes to fit different lathes and accommodate different workpiece diameters.

Advantages

• Ease of Use: The self-centering mechanism simplifies setup, especially for round or hexagonal workpieces.
• Speed: Faster clamping compared to independent jaw chucks.
• Versatility: Suitable for most general-purpose machining tasks.

Limitations

• Limited Precision: Not ideal for eccentric or irregularly shaped workpieces due to the fixed movement of the jaws.
• Clamping Force: Less clamping force compared to 4-jaw independent chucks, making it less suitable for heavy-duty operations.

Common Applications

• Machining shafts, rods, and round bars.
• Drilling, turning, and facing operations on cylindrical workpieces.
• Ideal for hobbyists and small-to-medium production runs.

If you need help selecting or using a specific type of 3-jaw chuck or have a question about installation or maintenance, let me know!