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ID Expansion Clamps

Jergens ID Expansion Clamps are the ideal way to hold parts on an inside diameter for multiple machining on a vertical or horizontal machining center. The larger diameter of the clamp is held to a close tolerance for precision locating in a machined pocket on work cubes and fixture plates. The customer machines the mild steel clamp to match the bore of the part, ensuring a proper fit. Often the clamps can be machined again for different size jobs.
Features, Benefits, & Product Specifications:
  • Body Material: Mild Steel
  • Low profile
  • Ideal for secondary operations on lathe parts
  • Easily machined to size on lathe or mill
  • Excellent for palletized setups
  • Allows more parts per work cube or fixture plate
  • Tighten with hex key or hydraulic pull cylinders (Drill clearance hole for longer bolt into the hydraulic cylinder)
  • Instructions included with each clamp
Note(s):
  • For "H" dimension: (3) Mounting Screws included.
  • The "G" dimension is the mimimum diamater the "F" dimension can be machined to.
 

 

Documents

ID Expansion Clamps

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

Part Number CAD Unit A (In) B (In) C (In) D (In) E +0.000/-0.002 (In) F (In) G (In) H I J (In) Torque (ft/lbs) Holding Force (lbs) Replacement Screw Part Number
68401 Inch 0.42 0.30 0.24 0.12 0.787 0.29 0.16 2-56 on .540 BHC 2-56 0.5 0.5 250 68900
68402 Inch 0.86 0.63 0.59 0.23 1.170 0.49 0.25 6-32 on .825 BHC 8-32 0.30 3.6 950 68901
68403 Inch 0.98 0.75 0.59 0.23 1.240 0.56 0.48 6-32 on .910 BHC 1/4-20 0.50 13.3 1900 68902
68404 Inch 0.98 0.75 0.59 0.23 1.476 0.79 0.53 6-32 on 1.140 BHC 5/16-18 0.56 27.6 2500 68903
68405 Inch 1.13 0.88 0.69 0.25 1.968 1.06 0.71 8-32 on 1.550 BHC 3/8-16 0.71 49.3 4500 68904
68406 Inch 1.25 1.0 0.81 0.25 2.205 1.39 0.90 8-32 on 1.790 BHC 1/2-13 0.71 120.0 5900 68905
68407 Inch 1.56 1.25 1.06 0.31 2.736 1.65 1.15 10-32 on 2.200 BHC 5/8-11 0.79 224.0 10000 68906
68408 Inch 1.56 1.25 1.06 0.31 2.972 2.03 1.15 10-32 on 2.515 BHC 5/8-11 0.79 224.0 10000 68906
68409 Inch 1.79 1.48 1.27 0.31 4.232 3.06 1.15 1/4-20 on 3.646 BHC 5/8-11 0.79 224.0 10000 68907
68410 Inch 1.79 1.48 1.27 0.31 5.232 4.06 1.15 1/4-20 on 4.648 BHC 5/8-11 0.79 224.0 10000 68907
68411 Inch 1.79 1.48 1.27 0.31 5.232 6.89 1.15 1/4-20 on 4.648 BHC 5/8-11 0.79 224.0 10000 68907
68412 Inch 1.79 1.48 1.27 0.31 6.000 9.85 1.15 1/4-20 on 5.250 BHC 5/8-11 0.79 125.0 6000 68907
Part Number CAD Unit A (mm) B (mm) C (mm) D (mm) E +0.00/-0.05 (mm) F (mm) G (mm) H I J (mm) Torque (Nm) Holding Force (N) Replacement Screw Part Number
68829 Metric 10.7 7.6 6.1 3.0 20.0 7.4 4.1 M2 on 13.7 BHC M2 4.1 0.70 1,113 68909
68830 Metric 21.8 16.0 15.0 5.9 29.72 12.4 8.0 M3 on 20.95 BHC M4 7.2 5.00 4,228 68910
68831 Metric 24.9 19.0 15.0 5.9 31.5 14.2 12.2 M3 on 23.1 BHC M6 11.2 17.00 8,455 68911
68832 Metric 24.9 19.0 15.0 5.9 37.5 20.0 13.5 M3 on 29.0 BHC M8 13.2 34.00 11,125 68912
68833 Metric 28.6 22.2 17.5 6.4 50.0 27.0 18.0 M4 on 39.4 BHC M10 16.3 60.00 20,025 68913
68834 Metric 31.8 25.4 20.6 6.4 56.0 35.3 23.0 M4 on 45.5 BHC M12 20.3 150.00 26,255 68914
68835 Metric 39.6 31.8 27.0 7.9 69.5 42.0 29.3 M5 on 55.9 BHC M16 21.4 280.00 44,500 68915
68836 Metric 39.6 31.8 27.0 7.9 75.5 51.5 29.3 M5 on 63.9 BHC M16 21.4 280.00 44,500 68915
68837 Metric 45.5 37.6 32.3 7.9 107.5 77.7 29.3 M6 on 92.6 BHC M16 19.3 280.00 44,500 68916
68838 Metric 45.5 37.6 32.3 7.9 132.90 103.0 29.3 M6 on 118.06 BHC M16 19.3 280.00 44,500 68916
68839 Metric 45.5 37.6 32.3 7.9 132.90 175.0 175.0 M6 on 118.06 BHC M16 19.3 280.00 44,500 68916
68850 Metric 45.5 37.6 32.3 7.9 152.40 250.2 29.3 M6 on 133.35 BHC M16 19.3 170.00 26,000 68916

Documents and Videos

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