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ID Expansion Clamp
The ID expansion clamp is 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 proper fit. Often times the clamps can be remachined for different size jobs.
    • 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 Workcube or Fixture Plate
    • Tighten with Hex Key or Hydraulic Pull Cylinders (Drill clearance hole for longer bolt into hydraulic cylinder)
    • Instructions included with each clamp


Product Selector Chart

Find the product and size you need in the chart below.

Click the Part Number in below chart
for Price and Stock Check.
Part NumberABCD+0.00/-.002FG†H*IJTorque (Ft/Lbs)Holding Force (Lbs)Replacement Screw
68401. on .540 BHC2-56.160.525068900CAD
68402. on .825 BHC8-32.303.695068901CAD
68403. on .910 BHC1/4-20.5013.3190068902CAD
68404. on 1.140 BHC5/16-18.5627.6250068903CAD
684051. on 1.550 BHC3/8-16.7149.3450068904CAD
684061. on 1.790 BHC1/2-13.71120.0590068905CAD
684071.561.251.06.312.7361.651.1510-32 on 2.200 BHC5/8-11.79224.01000068906CAD
684081.561.251.06.312.9722.031.1510-32 on 2.515 BHC5/8-11.79224.01000068906CAD
684091.791.481.27.314.2323.061.151/4-20 on 3.646 BHC5/8-11.79224.01000068907CAD
684101.791.481.27.315.2324.061.151/4-20 on 4.648 BHC5/8-11.79224.01000068907CAD
684111.791.481.27.315.2326.891.151/4-20 on 4.648 BHC5/8-11.79224.01000068907CAD
684121.791.481.27.316.0009.851.151/4-20 on 5.250 BHC5/8-11.79125.0600068412CAD

Part NumberABCD+0.00/-0.05 EFG†H*IJTorque (N.m.)Holding Force (N.)Replacement Screw
6882910. on 13.7 BHCM24.1.701,11368909
6883021.816.015.05.929.7212.48.0M3 on 20.95 BHCM47.25.004,22868910
6883124.919.015.05.931.514.212.2M3 on 23.1 BHCM611.217.008,45568911
6883224.919.015.05.937.520.013.5M3 on 29.0 BHCM813.234.0011,12568912
6883328.622.217.56.450.027.018.0M4 on 39.4 BHCM1016.360.0020,02568913
6883431.825.420.66.456.035.323.0M4 on 45.5 BHCM1220.3150.0026,25568914
6883539.631.827.07.969.542.029.3M5 on 55.9 BHCM1621.4280.0044,50068915
6883639.631.827.07.975.551.529.3M5 on 63.9 BHCM1621.4280.0044,50068915
6883745.537.632.37.9107.577.729.3M6 on 92.6 BHCM1619.3280.0044,50068916
6883845.537.632.37.9132.90103.029.3M6 on 188.06 BHCM1619.3280.0044,50068916
6883945.537.632.37.9132.90175.029.3M6 on 188.06 BHCM1619.3280.0044,50068916
6885045.537.632.37.9152.40250.229.3M6 on 133.35 BHCM1619.3170.0026,00068916

G† Minimum diameter the "F" Dimension can be machined
H* (3) Mounting Screws Included
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