12" 3 jaw Self Centering Scroll Lathe Chucks 2 Piece Jaws

SKU 202-5436

12" 3 jaw Self Centering Scroll Lathe Chucks 2 Piece Jaws

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Regular Price: $473.95

Online Price Only $362.68

SKU 202-5436
Lathe Chuck Category Self Centering Scroll Chucks
chuck diameter 12
thru hole size 3.937
mounting plain back
Bolt Circle Diameter 11.417
chuck thickness 3.543
TIR (inch) 0.0047
reversible jaw yes
Number of Jaws 3
Maximum Speed RPM 1200
Maximum Input Torque Nm 400
Full Details

Product Spotlight


  • 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


  • Internal Jaw:
    • Clamping Range A-A1: 0.453-5.709"
    • Jamming Range B-B1: 3.740-12.598"
  • External Jaw
    • Clamping Range C-C1: 4.331-12.598"

 

Plain Back
 
 
Size (inch)
Back Plate
D (inch)
D1 (inch)
D2 (inch)
D3 (inch)
H (inch)
H1 (inch)
H2 (inch)
h (inch)
z-d (metric)
 12 Plain12.598
10.630
11.417
3.937
6.122
3.543
3.799
0.236
3M-16

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