Shars 8" 3 jaw Self Centering Scroll Lathe Chucks, Plain Back, 2pc Reversible Jaws 202-5434 R[
Product Description
Shars 8" 3 jaw Self Centering Scroll Lathe Chucks, Plain Back, 2pc Reversible Jaws 202-5434 R[
- SKU# 202-5434
- A matching back plate (sold separately) would need to be machined on the face and hub OD in order to fit this chuck. For detailed information, please look for the Shars back plate machining guide.
- Chuck Diameter: 8"; Through Hole Size: 2.559"; Bolt Circle Diameter: 7.087"; Chuck Thickness: 2.953"; TIR: 0.0039"; Maximum Speed RPM: 2000; Maximum Torque NM: 250; Mounting: plain back; Reversible Jaws: Yes; Number of Jaws: 3
- Two piece jaw configuration with a master jaw and a top reversible jaw in American Standard tongue and groove
- Before assembling the jaw to its designated chuck the jaw's finishing machining operation are done on closed tolerance CNC machine
To achieve the .0005" radial runout and repeatability, it's required to use the 4 micro adjustment set screws to true the designated ground bar stock, not the chuck body. Do not attempt to put the indicator on the outside diameter of the chuck body to dial it to zero first as this would create more runout on the bar stock. The adjustable chuck is intended to give high repeatability clamping on a particular bar stock size after the set screw adjustment. After the adjustment is made on a particular bar stock rod, for example 1/2", it's required to true the bar stock again when clamping a different size diameter, for example 1".
Technical Specifications
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