4″ 3 Jaw Lathe Chucks Precision Self Centering w/ .003 TIR Certificate 2 Set Jaw New
Outstanding accuracy, versatility and durability.
Each high quality chuck comes with a certification that documents TIR.
Product Code
202-5410
Product description
- Diameter: 4″
- Thickness: 2.16″
- Center hole: .87″
- Bolt Circle Diameter: 3.307″
- Runout: 0.003″
- Max. Input Torque: 60 Nm
Product application
Product features
- 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
- 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″
Size (inch) D (inch) D1 (inch) D2 bolt hole circle dia. (inch) D3 (inch) H (inch) H1 (inch) H2 (inch) h (inch) z-d (metric) 43.9372.8353.3070.8662.9332.165-0.1183M-8
Product includes
- 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
