ID Expansion Clamps| Jergens Workholding

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

Inch Metric

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
Hydraulic Production Vises
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