8" 4 jaw Self Centering Scroll Lathe Chucks Solid Jaws

SKU 202-5474

8" 4 jaw Self Centering Scroll Lathe Chucks Solid Jaws

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Regular Price: $270.00

Online Price Only $178.25

SKU 202-5474
Lathe Chuck Category Independent Lathe Chucks
chuck diameter 8
thru hole size 2.559
mounting plain back
Bolt Circle Diameter 7.087
chuck thickness 2.952
TIR (inch) 0.0039
jaw movement self centering
Number of Jaws 4
Maximum Speed RPM 2000
Maximum Input Torque Nm 250
Full Details

Product Spotlight


  • Semi-steel chuck body made from high quality cast iron
  • Each pinion is ground and hardened to HRC 43
  • Both sides of the jaw teeth and guides are ground and hardened to HRC 58-62

  • Each set of jaws are serialized in their own set
  • A serialized set of jaws are then finished, ground, and lapped on their designated chuck body which will be the same chuck body on the final assembly to achieve a greater accuracy
  • Before assembling the jaws to its designated chuck body, the jaws finish machining is performed on a close tolerance state of the art CNC machine from Japan
  • The scroll plate's thread flank are ground on both sides to achieve tighter contact with the master jaw
  • Each chuck has gone through rigorous accuracy and repeatability inspection by clamping and jamming multiple random testing rods or rings
  • Accuracy is maintained for the entire clamping range
Clamping Range:



  • Internal Jaw:
    • Clamping Range A-A1: 0.157-3.346"
    • Jamming Range B-B1: 2.559-7.874"
  • External Jaw
    • Clamping Range C-C1: 2.559-7.874"

 

size (inch) D (inch) D1 (inch) D2 Mounting Hole Bolt Circle Dia (inch) D3 (inch) H (inch) H1 (inch) h (inch) z-d (metric)
3 3.150 2.165 2.598 0.630 2.618 1.969 0.157 3M-6
4 3.937 2.835 3.307 0.866 2.933 2.106 0.118 3M-8
6 6.299 5.118 5.591 1.772 3.701
2.559 0.197 3M-8
8 7.874 6.496 7.087 2.559 4.291 2.653 0.197 3M-10
10 9.843 8.110 8.898 3.150 4.724 3.150 0.197 3M-12

What's Included

  • 2 set of jaws: inside jaw set and outside jaw set
  • 3 piece of mounting screws for the lathe chuck back plate
  • 1 hexagon wrench