Precise 6-Jaw Zero-Set Fine Adjustment Self-Centering Scroll Chuck, 8″

• 4 micro adjustment set screws capable of assisting the chuck to achieve .0005″ TIR repeatability

• 6-Jaw chucks invaluable for clamping delicate or thin walled parts as it producing less deformation on the parts or surface due to distribution of clamping forces over a greater area.

• 3 pinion design with each pinion ground and hardened to HRC 43, Plain Back

• Two piece jaw configuration with a master jaw and a top reversible jaw in American Standard tongue and groove

• Both side of jaw teeth and guides are ground and hardened to HRC58-62

• Each set of jaw are serialized in a set of 3 or 6 pieces depending on the chuck style

• Before assembling the jaw to its designate chuck the jaw’s finishing machining operation are done on closed tolerance CNC machine

• Scroll plate’s thread flank are ground on both side to achieve a tighter contact with the master jaw

• Each set of jaw’s finishing grinding are done in the chuck body which will be shipped with this designated set of jaws to achieve greater accuracy

• Each chuck has gone through rigorous accuracy and repeatability inspection with clamping and jamming multiple random testing rods or ring

Includes:

• 1 set of reversible jaws for inside and outside
• 6 piece of mounting screws for the lathe chuck back plate
• 1 hexagon wrench

Dimensions:

Size (D) Internal Jaw
Clamping Range
A-A1 Jamming Range
B-B1 External Jaw
Clamping Range
C – C1 mm inch mm inch mm inch 160 6″ 3 – 62 0.118 – 2.44 45 – 155 1.77 – 6.10 42 – 150 1.65 – 5.91 200 8″ 5 – 74 0.197 – 2.88 45 – 185 1.77 – 7.28 74 – 230 2.91 – 9.06 250 10″ 13 – 118 0.51 – 4.65 76 – 240 2.99 – 9.45 78 – 250 3.07 – 9.84 315 12″ 13 – 129 0.51 – 5.08 88 – 260 3.46 – 10.24 100 – 290 3.94 – 11.42

size 6″ 8″ 10″ 12″ D 6 8.27 10 12 D1 3.125 4.75 6.374 7.905 D2 5.343 7.5 4.375 5.25 D3 1.535 2.265 2.835 3.268 H 3.882 5.206 6.056 6.569 H1 2.323 3.122 3.492 3.98 h 0.689 0.752 0.803 0.803 z-d 6 holes 1/4″-20 6 holes 3/8″-16 6 holes 7/16″-14 6 holes 1/2″-13

Specifications:

Lathe Chuck Category Adjustable Lathe Chucks chuck diameter 8 thru hole size 2.264 mounting plain back Bolt Circle Diameter 7.5 chuck thickness 3.122 TIR (inch) 0.0005 Number of Jaws 6

See all Precise 3-Jaw & 6-Jaw Zero-Set Fine Adjustment Self-Centering Scroll Chucks