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16" 3 jaw Self Centering Scroll Lathe Chucks 2 Piece Jaws

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Mfg SKU #202-5444
Lathe Chuck CategorySelf Centering Scroll Chucks
BrandShars Tool
chuck diameter16
Thru Hole Size5.118
mountingplain back
Bolt Circle Diameter14.490
chuck thickness3.937
TIR (inch)0.0047
reversible jawyes
Number of Jaws3
Maximum RPM1000
Maximum Input Torque Nm500


  • Semi-steel chuck body made from high quality cast iron
  • Three pinion design with each pinion ground and hardened to HRC 43
  • Two piece jaw design with a master jaw and a top reversible jaw in American Standard tongue and groove specification
  • Both side of 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 jaw to its designated chuck body, the jaw's finish machining are performed on a closed tolerance state of the art CNC machine from Japan
  • Scroll plate's thread flank are ground on both side to achieve a tighter contact with the master jaw
  • Each chuck has gone through rigorous accuracy and repeatability inspection with 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: 0.591-8.268"
    • Jamming Range B-B1: 4.724-15.748"
  • External Jaw
    • Clamping Range C-C1: 4.724-15.748"