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Positrol > Outside Diameter Gripping Chucks  
 

Outside Diameter Gripping Chucks


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First Operation Collet Chucks

First Operation Collet Chucks


Typically used for barfed lathes or slugged bar.

  • Higher Spindle Speeds than standard 3-jaw chucks
  • Holds grip force at higher speeds
  • Compact design has less mass allows for faster ramp up/down
  • Better repeatability than standard chucks
  • More tool clearance
  • Quicker size/shape changes
  • Second Operation Collet Chucks

    Second Operation Collet Chucks


    Use these chucks on shaft or long parts that need a short cycle times and tight tolerances

  • More Accurate than standard 3-Jaw Chucks
  • Positive length control and parrallism with pullback action
  • Air sensing and through spindle coolant capable
  • Holds gripping force at higher speeds
  • Less maintenance and cleaning than a standard chuck
  • Hardened and ground components for longevity
  • Swivel-Grip Chuck

    Swivel-Grip Chuck

    (5)
    Castings and forgings are held securely for this first operation machining chuck.

  • Jaws swivel up to six degrees to compensate for part irregularities and tapers.
  • Pullback feature provides maximum rigidity and length positioning.
  • Two, three and six-jaw, self-centering or compensating models available.
  • Can be arranged for internal and external gripping.
  • Double sealed against chip contamination.
  • Top jaws and workstops designed to suit.
  • Six Jaw

    Six Jaw Chuck

    (3)
    Tube, castings, forgings and powder metal parts are held securely for this first operation machining chuck.

  • Twelve points of contact with jaws that swivel up to six degrees to compensate for part irregularities and out of roundness.
  • Pullback feature provides maximum rigidity and length positioning.
  • Can be arranged for internal and external gripping.
  • Double sealed against chip contamination.
  • Top jaws and workstops designed to suit.
  • Drawdown Chucks

    Drawdown Chucks

    (5)
    Primarily second operation turning to grip on machined surfaces without marring the finish

  • Jaw/post assembly designed to compensate for out-of-round parts
  • Pullback feature provides positive length control and parallelism
  • More accurate than conventional chucks (.0005" T.I.R.)
  • Top jaws designed to suit, with or without grippers
  • Air sensing and thru spindle coolant capable
  • Three and six-jaw styles available
  • Hydraulic Expanding Chucks

    Hydraulic Expanding Chucks


    When High precision chucking is required for Grinding , turning, inspecting, or balancing the hydraulic membrane chuck is ideal.

  • Repeatability within .0002" TIR as standard and up to .00005" TIR for critical applications.
  • Completely sealed against contamination
  • Grips multiple parts and/or multiple diameters
  • Collets allow for size quick change
  • Manual or power operated.
  • Diaphragm Chucks

    Diaphragm Chucks


    Primarily used for second operations including grinding.

  • No sliding parts to wear out
  • No contamination
  • Pullback action
  • Light clamping for thin walled parts
  • Single or double acting
  • Counterweights available for higher RPM
  • TIR .0002” repeatability
  • Compensating Chucks

    Compensating Chucks


    Accomodates clamping diameters that are out of round or are not concentric with the locating datum

  • Drawbar or hydraulic actuation.
  • Sealed against contamination
  • Pullback or dead length designs
  • Grips thin walled parts or parts with centers
  • Retractable Jaw Chucks

    Shaft Chucks


    Jaws extend and retract to enable the turning of the complete shaft in one operation.

  • Heavy cuts can be made without slippage by extending the jaws to clamp the shaft.
  • Jaws retract out of the way and the facedriver is used for final turning.
  • Jaws compensate for part irregularities.
  • Jaws are designed to meet customer's specific machining Leeds.
  • Facedrivers can be changed for different sized shafts.
  • Driver pins mechanically compensate for out-of-square parts while the spring-loaded center compensates for center size variations.
  • Standard or special chuck designs available.
  • Chuck is sealed to prevent contamination
  • Hydraulic Membrane Pitch Diameter Chucks

    Gear Chucks


    Locate on your part's pitch diameter accurately for turning, milling, grinding and inspection applications. Whether the gear or spline is cut or formed on the inside or outside diameters - straight or helical bevel gears

  • Collet arbors and chucks,
  • Hydraulic expanding arbors and chucks,
  • Rotary locking splines, bevel gear chucks,
  • Specials that have unique advantages suited to your application.