Skill-Craft Company, Inc.
10125 Radiance Drive Ira, Michigan 48023
Phone:586.716.4300 • Fax: 586.716.4399
E-Mail: info@skill-craftcompany.com • Web site: www.skill-craftcompany.com
All Categories > ID Diaphragm Chuck  

ID Diaphragm Chuck


This chuck is a 9 inch, 6-jaw I.D. diaphragm chuck. Our customer needed a way to perform an audit on their production ring gears they were machining. This chuck was used and developed to hold on the I.D. of the ring gear so various dimensions could be checked.

This chuck had to repeat within .0002 in order to assure proper readings from the audit machine. There were (2) different sized ring gears, so all that was necessary for part change over was replacing the (6) top jaws that has (2) bolts per jaw to hold it in place. Even with part change over, the chuck repeated within .0002.





Custom Diaphragm Chucks  · Diaphragm Chuck Capabilities  · Competetive Advantages & Strengths

Custom Diaphragm Chucks
  • Ideal for high precision turning, grinding, milling, boring, hard turning, inspection
  • One piece construction allows for clamping on O.D., I.D., or pitch-line, thin-walled parts: No metal-on-metal moving parts, causing no wear for long-life
  • Ensures flexibility to engineers or tool designers
  • Will mount in existing machine envelope (jaw height, locator, and jaw inserts identical)
  • 3, 4 or 6 jaw standard designs, or custom designs available
  • Uniform, variable clamping forces provide a rigid design without part distortion


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    Diaphragm Chuck Capabilities

    Sealed Design
    		• One piece construction eliminates contaminants and costly down time
    • Maintenance free, no lubrication required

    Pull-Down
    		Pulls work piece tight against part stop

    Versatility
    		• Quick change jaws allows for quick turnover
    • No grinding necessary on replacement jaws – part turnover within minutes, not hours
    • Accommodates different sizes using a single diaphragm

    Actuation
    		• Air actuation or push-pull clamping
    • Uniform clamping pressures

    TIR
    		• Repeatability of less than .0002
    • Quick change jaws do not affect TIR


    Competetive Advantages & Strengths
    • Long term ownership (33 years)
    • (3) graduate engineers: Multiple employees with each having 25+ years dedication to Skill-Craft
    • Knowledgeable with both Skill-Craft and non Skill-Craft workholding products: Continuous improvement achieved by transferring this knowledge to own custom designs
    • Repair both Skill-Craft and non Skill-Craft chucks to achieve like new accuracy
    • Excel in back engineering when no prints are available
    • High Powered Expertise/Low Cost Business Structure
    • Latest Automated Design and Manufacturing Technology (CAD, FEA, CAM, CNC)
    • Precision/stability/repeatability (20-50 millionths) at high speeds >5000 RPM’s
    • Collets manufactured to a tolerance of .0001 inch
    • World class reliability and maintainability
    • AAA credit rating



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