Bison - 3 Jaws, 20" Diam, Self Centering Manual Lathe Chuck - Plain Back Mount Spindle, Reversible, 700 Max RPM, 7.4803" Through Hole Diam, 0.002" Axial Runout, 0.004" Radial Runout, Cast Iron
Item #: 08574204
Brand: Bison
Model #: 7-800-2000
Exact Tooling IR#: 04
Features and Benefits
Self-centering scroll chucks are designed with jaws on a scroll which open and close with a wrench that is turned on a pinion. They accurately self-center on the workpiece as the jaws close.
Cast iron also called semi-steel is the industry standard for chuck body material.
| Product Specifications | |
|---|---|
| Chuck Type | Self-Centering |
| Nominal Chuck Size | 20 |
| Number of Jaws | 3 |
| Mount | Plain Back |
| Through-Hole Diameter (Decimal Inch) | 7.4803 |
| Body Material | Cast Iron (Semi-Steel) |
| Reversible Jaws | Reversible Jaws |
| Number of Jaw Pieces | Two-Piece |
| Chuck Diameter (Inch) | 20 |
| Minimum Jaw Capacity (Decimal Inch) | 0.7870 |
| Maximum Jaw Capacity (Decimal Inch) | 19.0900 |
| Adjustable | No |
| Jaw Type | Master Jaws; Top Jaws |
| Axial Runout (Decimal Inch) | 0.0020 |
| Radial Runout (Decimal Inch) | 0.0040 |
| Body Length (Decimal Inch) | 4.7240 |
| Maximum RPM | 700 |
| Includes | (2) Hex Keys; Chuck Wrench; Eye Bolts (Chuck Size 15-3/4" & Larger); Set of Hard Master Jaws; Set of Mounting Bolts; Set of Soft Top Reversible Jaws |
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