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PRODUCT INCULDED
- 2 set of hard solid jaws: inside jaw set and outside jaw set
- 3 piece of mounting screws for the lathe chuck back plate
- 1 hexagon wrench
4" 3 jaw Self Centering Scroll Lathe Chuck
Part# 202-5410
- 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 maintained for the entire clamping range
- Back plate needs to be machined to fit the lathe chuck
- CHUCK DIAMETER: 4"
- THRU HOLE SIZE: 0.866"
- BOLT CIRCLE DIAMETER: 3.307"
- CHUCK THICKNESS: 2.165"
- MAXIMUM SPEED RPM: 3500
- MAXIMUM INPUT TORQUE NM: 60
- TIR (inch): 0.003
PRODUCT SPOTLIGHT
- Semi-steel chuck body made from high quality cast iron
- Each set of jaws are serialized in their own set
- Both sides of the jaw teeth and guides are ground and hardened to HRC 58-62
- Each pinion is ground and hardened to HRC 43
- 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
CLAMPING RANGE
Internal Jaw:
- Clamping Range A-A1: 0.078-1.181"
- Jamming Range B-B1: 1.181-3.543"
External Jaw:
- Clamping Range C-C1: 1.181-3.150"
Ed
Reviewed in the United States on December 10, 2022
Chuck is very nice for the money. The mounts was not true, had to resurface the entire face to get a true mount.Minor issue for the price though.
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