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Checking Balls

Jergens Checking Balls with Reference Shoulders are high precision stainless steel, made to closer tolerances, and avoid excessive side forces. The accurately located shoulder provides for positive positioning, re-positioning, or replacement.
 
Jergens Checking Balls with Reference Shoulder & Tapped Shank can be pulled into a hole or bushing from below without applying pressure on the ball (accomplished by using a cap screw in the tapped hole in the shank).
 
Features, Benefits, & Product Specifications:
  • Material: 440C Stainless Steel Hardened
  • Eccentricity of Ball to Shank: 0.0002" TIR (max.)
  • Two-piece welded construction
Note(s):
  • Part No. 29010 is supplied with a tungsten carbide ball only (RC 91.5-92.5).
  • Metric measurements are available upon request.

Documents

Checking Balls

Select a part number for CAD drawings, price and stock availability.

Part Number CAD Unit Type A (In) B +0.0000/-0.0002 (In) C +/- 0.0002 (In) D +/-0.005 (In)
29010 icon_cad Inch Checking Balls (with reference shoulders) 0.1250 0.1255 0.0938 0.3750
29011 icon_cad Inch Checking Balls (with reference shoulders) 0.2500 0.1247 0.2000 0.5600
29012 icon_cad Inch Checking Balls (with reference shoulders) 0.3750 0.1872 0.3000 0.7500
29013 icon_cad Inch Checking Balls (with reference shoulders) 0.5000 0.2497 0.4000 0.9400
29014 icon_cad Inch Checking Balls (with reference shoulders) 0.6250 0.3122 0.4500 1.0600
29015 icon_cad Inch Checking Balls (with reference shoulders) 0.7500 0.3747 0.5000 1.2500
29016 icon_cad Inch Checking Balls (with reference shoulders) 0.8750 0.4372 0.6000 1.4400
29017 icon_cad Inch Checking Balls (with reference shoulders) 1.0000 0.4997 0.7000 1.6200
29021 Inch Checking Balls (with reference shoulder and tapped shank) 0.5000 ±.0002 0.2499 ±.0001 0.3125 -

Documents and Videos

  • icon_pdf Operating Manual
  • icon_pdf Operating Manual - 81600 ONLY
  • icon_pdf Jergens Production Vise System
  • icon_pdf Jergens Production Vises Features and Benefits
  • icon_pdf Vertical Machine Solutions
  • icon_pdf Horizontal Machine Solutions
  • icon_pdf Hydraulic Production Vises
  • icon_pdf Production Vises