acrotech_2012b-22

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tubes/springsStocked in 95A Durometer, tubes/springs are useful in applications

where vibration, corrosion and magnetism prevent the use of steel

springs. Also, urethane springs have proven to be safest, most efficient

and reliable compression material for punching, stamping and drawing

dies.

The K•Prene® urethane Tube/Spring material is a polyether-elastomer

that reacts similarly to an incompressible fluid. The volume of material

moved by compression is displaced laterally in the form of bulging sides. An approximate change in the diameter of our K•Prene® urethane Tubes/

Springs can be made by increasing the diameter by the same amount of

compression.

Example: A 1.50" long spring is to be deflected by 15% or .225". The

diameter will then also increase roughly by .225". The material’s lateral

expansion must be considered for many applications.

The maximum recommended free (unloaded) length is 2.5 times the

springs outside diameter, although springs may be stacked with guide

rods and washer-shaped spacers.

Suggested maximum cyclic frequencies and deflection percentages of

free length are summarized by the following for 95A Durometer Tubes/

Springs.

K•Prene® Urethane Tubes/Springs

Maximum Deflection Cycle Per Hour

Slow speeds or

short runs Less than 25% 200

Intermittent Up to 25% 700

Continuous Up to 15% 12,000

Cap Cap Order

O.D. I.D. No. Price

1" 3/4" KPC-1000 $4.20 1-1⁄8 7/8 KPC-1108 4.65

1-1⁄4 1 KPC-1104 4.75

1-3⁄8 1-1⁄8 KPC-1308 4.95

1-1⁄2 1-1⁄4 KPC-1102 5.60

1-5⁄8 1-3⁄8 KPC-1508 5.90

1-3⁄4 1-1⁄2 KPC-1304 6.60

2-1⁄8 1-3⁄4 KPC-2108 7.35

2-3⁄8 2 KPC-2308 8.20

2-7⁄8 2-1⁄2 KPC-2708 9.90

Caps

I.D.

O.D.

Caps Specifications

Grade - K-750D, very tough, hard urethane.

Can be drilled, pierced or machined to fit the

punch for positive stripping while dampeningvibration. Will not mar prefinished stocks.

I.D. - Press fit to spring.

(use vise or arbor press to assemble

caps and springs).

Almost any O.D./I.D. combination can be supplied.

We have provided parts from 1/4" dia. to 6" dia. in quantities

of thousands to just a few pieces. Material, size, color, etc.,

all supplied to your specifications.

Bulk or specific quantity packaging is available.

Contact Acrotech for details.

Washers, Seals & Gaskets

Advantages of urethaneTubes/Springs vs. conventional springs:

Abrasion resistance

They do not fragmentize

High load-carrying capability

Protection from marring/galling

Longer life

Oil and solvent resistance (See chart on page 12)

Low noise

Vibration damping and shock absorbance

100% load-bearing surface

Effectiveness between -30° F. and 180° F.

Length

O.D.

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tubes/springsStocked in K-950A. A minimum order of the 12" or 24" length

is required when ordering any other durometer.

Tubes/Springs (metric sizes on page 24).

Fits Lb. Lb. Lb.

Punch Per Per Per

Body 1/8" 3/8" 1/2"

Diam. O.D. Lgth. Order No. Def. Def. Def. Price

1/2" 1" 1" KPS-0102 H01000 512 - 1143 $2.65 High 1-1/4 KPS-0102 H01104 340 - 1025 3.05 Press. 1-1/2 KPS-0102 H01102 325 - 946 3.50 1-3/4 KPS-0102 H01304 275 - 878 4.00 2 KPS-0102 H02000 250 - 834 4.35 24 KPS-0102 H24000 * - - 38.85 1-1/8" 1" KPS-0102 V01000 681 1709 - 2.85 Very 1-1/4 KPS-0102 V01104 525 1475 - 3.40 High 1-1/2 KPS-0102 V01102 424 1318 - 3.80 Press. 1-3/4 KPS-0102 V01304 350 1207 - 4.45 2 KPS-0102 V02000 320 1123 - 4.65 24 KPS-0102 V24000 * - - 43.40 1-1/4" 1" KPS-0102 U01000 863 2188 - 3.05

Ultra 1-1/4 KPS-0102 U01104 675 1793 - 3.60

High 1-1/2KPS-0102 U01102 550 1529 - 4.10

Press. 1-3/4 KPS-0102 U01304 492 1341 - 4.75

2 KPS-0102 U02000 450 1200 - 5.05

24 KPS-0102 U24000 * - - 48.30

5/8" 1-1/8" 1" KPS-0508 H01000 562 - 1224 2.85 High 1-1/4 KPS-0508 H01104 446 - 1169 3.40 Press. 1-1/2 KPS-0508 H01102 375 - 1133 3.80 1-3/4 KPS-0508 H01304 323 - 1107 4.45 2 KPS-0508 H02000 295 - 1087 4.75 24 KPS-0508 H24000 * - - 43.60 1-1/4" 1" KPS-0508 V01000 794 1855 - 3.05 Very 1-1/4 KPS-0508 V01104 600 1624 - 3.60 High 1-1/2 KPS-0508 V01102 510 1310 - 4.10 Press. 1-3/4 KPS-0508 V01304 424 1232 - 4.85

2KPS

-0508 V02000 384 1185 - 5.15 24 KPS-0508 V24000 * - - 48.65 1-3/8" 1" KPS-0508 U01000 975 2462 - 3.30 Ultra 1-1/4 KPS-0508 U01104 775 2129 - 3.90 High 1-1/2 KPS-0508 U01102 640 1907 - 4.45

Press. 1-3/4 KPS-0508 U01304 546 1749 - 5.25

2 KPS-0508 U02000 489 1630 - 5.60 24 KPS-0508 U24000 * - - 54.10

Fits Lb. Lb. Lb.

Punch Per Per Per

Body 1/8" 3/8" 1/2"

Diam. O.D. Lgth. Order No. Def. Def. Def. Price

3/16" 11/16" 1-1/4" KPS-0316 H01104 220 - 1036 $2.55 High 1-1/2 KPS-0316 H01102 200 - 904 2.75 Press. 12 KPS-0316 H12000 * - - 15.55 1/4" 3/4" 1" KPS-0104 H01000 325 - 1101 2.35 High 1-1/4 KPS-0104 H01104 250 - 975 2.85 Press. 1-1/2 KPS-0104 H01102 215 - 790 3.05 1-3/4 KPS-0104 H01304 183 - 703 3.80 12 KPS-0104 H12000 * - - 18.10 7/8" 1" KPS-0104 V01000 475 1294 - 2.45 Very 1-1/4 KPS-0104 V01104 350 1131 - 2.95 High 1-1/2 KPS-0104 V01102 302 1022 - 3.25 Press. 1-3/4 KPS-0104 V01304 275 - - 4.00 12 KPS-0104 V12000 * - - 19.45 1" 1" KPS-0104 U01000 712 1543 - 2.55

Ultra 1-1/4 KPS-0104 U01104 547 1266 - 3.15

High 1-1/2 KPS-0104 U01102 399 1082 - 3.50

Press. 1-3/4 KPS-0104 U01304 348 933 - 4.35

12 KPS-0104 U12000 * - - 21.00

5/16" 13/16" 1-1/4" KPS-0516 H01104 280 - 1037 3.05 High 1-1/2 KPS-0516 H01102 255 - 936 3.40 Press. 1-3/4 KPS-0516 H01304 235 - 863 3.80 2 KPS-0516 H02000 225 - 809 4.20 12 KPS-0516 H12000 * - - 20.60 3/8" 7/8" 1" KPS-0308 H01000 444 - 1027 2.75 High 1-1/4 KPS-0308 H01104 347 - 957 3.40 Press. 1-1/2 KPS-0308 H01102 275 - 910 3.70 1-3/4 KPS-0308 H01304 224 - 876 4.20 2 KPS-0308 H02000 199 - 851 4.65

12KPS

-0308 H12000 * - - 23.10 1" 1" KPS-0308 V01000 575 1501 - 2.85 Very 1-1/4 KPS-0308 V01104 475 1265 - 3.60 High 1-1/2 KPS-0308 V01102 389 1108 - 3.90 Press. 1-3/4 KPS-0308 V01304 325 998 - 4.45 2 KPS-0308 V02000 286 912 - 4.95 12 KPS-0308 V12000 * - - 24.70 1-1/8" 1" KPS-0308 U01000 800 2071 - 3.05 Ultra 1-1/4 KPS-0308 U01104 593 1729 - 3.80

High 1-1/2 KPS-0308 U01102 522 1501 - 4.10

Press. 1-3/4 KPS-0308 U01304 450 1338 - 4.75

2 KPS-0308 U02000 387 1215 - 5.25

12 KPS-0308 U12000 * - - 26.50

See stocked inventory dimension tolerances for rods,

squares and rectangulars on page 4.

C u s t o m s ha p e

s &

s i z e s a r e a va i

la b l e!

LengthI . D .

O . D .

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tubes/springs

28

Tubes and springs are made to order. Common sizes are listed below; if you don’t

see the size you are looking for, contact us and we will make it for you.

Tubes/Springs (metric sizes on page 24).

1/8" 3/8" $13.30

1/8 1/2 13.95

1/8 3/4 15.80

1/8 1-1/8 21.65

1/8 1-1/2 25.65

1/8 1-3/4 30.40

3/16 5/8 15.10

3/16 3/4 16.10

3/16 7/8 17.30

3/16 1 18.70

3/16 1-1/2 26.00

1/4 5/8 17.10

1/4 1-1/8 22.55

1/4 1-1/4 24.30

1/4 1-1/2 28.30

1/4 1-5/8 30.60

9/32 1 20.90

5/16 9/16 18.60

5/16 5/8 19.05

5/16 3/4 20.05

5/16 7/8 21.20

5/16 15/16 21.90

5/16 1 22.60

5/16 1-1/8 24.15

5/16 1-1/4 25.90

5/16 1-1/2 29.90

5/16 1-3/4 34.65

5/16 2 40.10

3/8 5/8 20.90

3/8 3/4 21.90

3/8 13/16 22.50

3/8 15/16 24.00

3/8 1-1/4 28.25

3/8 1-3/8 30.15

3/8 1-1/2 32.25

3/8 1-3/4 37.00

3/8 2 42.45

3/8 2-1/2 55.60

3/8 3 71.65

25/64 7/8 23.00

7/16 3/4 21.60

7/16" 7/8" $36.95

7/16 1 39.50

7/16 1-1/4 45.60

7/16 1-3/8 49.15

7/16 1-1/2 53.05

1/2 3/4 34.10

1/2 7/8 36.30

1/2 1-3/8 51.85

1/2 1-1/2 55.75

1/2 1-3/4 64.55

1/2 1-13/16 66.95

1/2 2 74.70

1/2 2-1/2 99.10

1/2 3 128.95

1/2 3-1/4 137.25

33/64 13/16 35.05

33/64 1 38.70

33/64 2 71.25

9/16 3/4 33.40

9/16 1 38.15

9/16 1-1/4 44.25

9/16 1-3/8 47.80

9/16 2 70.70

9/16 2-1/2 95.10

9/16 3 124.95

5/8 3/4 36.00

5/8 1 40.75

5/8 1-1/2 58.00

5/8 1-5/8 62.25

5/8 1-3/4 66.85

5/8 2 77.05

5/8 2-1/8 82.65

5/8 2-1/4 88.60

5/8 2-1/2 101.50

41/64 1 40.55

41/64 1-1/8 46.65

41/64 1-3/8 50.20

41/64 1-3/4 62.90

41/64 2 73.10

21/32 1 40.35

11/16 1-1/4 46.00

3/4 7/8 41.75

3/4 1 44.30

3/4 1-1/8 47.15

3/4 1-1/4 50.35

3/4 1-13/16 76.05

3/4 1-7/8 78.55

3/4" 2" $83.80

3/4 2-1/4 95.35

3/4 2-1/2 108.25

3/4 2-3/4 122.50

3/4 3 138.10

13/16 1-1/2 58.80

13/16 1-3/4 67.60

27/32 3-1/8 144.80

7/8 1-1/8 44.25

7/8 1-1/4 47.45

7/8 1-3/8 51.00

7/8 1-1/2 54.90

7/8 1-11/16 63.25

7/8 2-1/16 82.45

7/8 2-1/2 104.10

7/8 3 133.95

7/8 3-1/4 150.90

7/8 3-1/2 169.20

1 1-1/4 48.05

1 1-3/8 49.70

1 1-1/2 55.50

1 2-1/4 90.10

1 3 142.45

1 3-1/16 146.55

1 3-1/4 159.40

1 3-1/2 177.70

1 3-3/4 197.40

1 4 218.45

1-1/16 1-3/4 62.90

1-1/16 2 73.05

1-1/16 2-1/4 84.60

1-1/16 2-1/2 97.50

1-3/32 2-1/4 83.90

1-1/8 1-3/8 48.75

1-1/8 1-1/2 52.65

1-1/8 1-5/8 56.90

1-1/8 1-3/4 61.50

1-1/8 2 71.70

1-1/8 2-1/4 83.25

1-1/8 2-9/16 99.60

1-1/8 3 126.00

1-1/4 1-1/2 49.45

1-1/4 1-5/8 79.15

1-1/4 1-3/4 83.70

1-1/4" 1-7/8" $88.60

1-1/4 2 93.85

1-1/4 2-3/4 132.50

1-1/4" 3" $148.10

1-1/4 3-1/4 165.05

1-3/8 1-3/4 80.15

1-3/8 1-7/8 85.10

1-3/8 2 90.35

1-3/8 2-1/2 114.75

1-3/8 3-1/4 161.55

1-3/8 3-1/2 179.85

1-1/2 1-7/8 83.85

1-1/2 2 89.10

1-1/2 2-1/4 100.60

1-1/2 2-1/2 113.45

1-1/2 3 143.30

1-1/2 3-1/2 178.55

1-1/2 4 219.25

1-5/8 2 84.90

1-5/8 2-1/4 90.50

1-5/8 2-1/2 109.35

1-5/8 3 139.20

1-3/4 2-1/4 91.80

1-3/4 2-3/8 98.10

1-3/4 2-1/2 104.70

1-3/4 3 134.55

1-3/4 3-1/4 151.50

1-7/8 3 129.65

1-7/8 3-1/2 164.90

2 2-1/2 94.55

2 2-3/4 108.80

2 3 124.40

2 3-1/4 141.35

2 3-1/2 159.70

2 4 200.40

2-1/16 3-1/4 138.60

2-1/16 4 197.60

2-1/16 4-5/8 256.10

2-1/8 3 118.80

2-1/4 3 112.90

2-1/4 3-1/2 148.15

2-1/4 4 188.85

2-3/8 3 106.65

2-3/8 4 182.60

2-1/2 3 135.30

2-1/2 4 176.00

3 4 146.15

3 5 243.80

4 5 104.85

I.D. O.D. Price I.D. O.D. Price I.D. O.D. Price I.D. O.D. Price

12" Lengths 24" Lengths

See stocked inventory dimension tolerances for rods, squares and rectangulars on page 4.

Length

I . D .

O . D .

acrotech_2012b-22

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