Workholding Solutions Master Catalog

LOCATING COMPONENTS workholding solutions

Precision Expanding Dowels

• Material: Alloy Steel, case hardened to 50-55 Rockwell C • Self-Centering and Repeatable within +/- 0.0005" (0.013mm) • Top and bottom half of dowel expand separately • Patented

Inch

Hex Key Sizes

Recommended Hole Diameter

Nominal Diameter Inch

Nominal Length (L) Inch

A Diameter

B Diameter

L1

Bottom Top

Part Number 29401 29402 29403 29404 29405 29406

+0.001/-0.000" +0.000/-0.001" +0.000/-0.010" ±0.005" Step 1

Step 2

1/4 3/8 1/2 5/8 3/4

1/2 3/4

0.250 0.375 0.500 0.625 0.750 1.000

0.249 0.374 0.499 0.624 0.749 0.999

0.245 0.370 0.495 0.620 0.745 0.995

0.428 0.634 0.881 1.162 1.390 1.758

5/64

3/32 5/32 3/16 7/32 5/16

1/8

1

5/32 3/16

1 1/4 1 1/2

1/4 3/8

1

2

1/2

Metric

Hex Key Sizes

Recommended Hole Diameter

Nominal Diameter (mm)

Nominal Length (L) (mm)

LOCATING COMPONENTS

A Diameter

B Diameter

L1

Bottom Top

Part Number 29451 29452 29453 29454 29455

+0.025/-0.00mm +0.00/-0.025mm +0.00/-0.254mm ±0.13mm Step 1

Step 2

10 12 14 16 20

20 25 28 32 38

10 12 14 16 20

9.98

9.88

17.45 22.48 24.74 29.51 35.31

3 4 4 5 6

4 5 5 6 8

11.98 13.97 15.98 19.98

11.89 13.89 15.90 19.89

Installation Instructions

Step 1 Remove the top screw, insert the dowel into the locating hole of the rst part, and expand the bottom half with a hex wrench.

Step 2 Replace the top screw, slide the locating hole of the second part over the dowel and expand top half with a hex wrench.

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