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Acetal

POM (Polyoxymethylene) also known as Acetal, provides high strength/stiffness easy to machine with a low moisture absorption rate.   Acetal bearings outperform Nylon 4 to 1 and is an excellent replacement for steel.

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<p>Strength/Rigidity</p>

Strength/Rigidity

<p>Dimensional Stability</p>

Dimensional Stability

<p>Low Moisture Absorption</p>

Low Moisture Absorption

<p>Wear Resistant</p>

Wear Resistant

Technical Resources

Product Options

Colors

Sheet and Rod: Natural, Black
Tube: Natural, Black

Grades
  • Homopolymer and Copolymer
  • General Purpose
  • Unfilled
  • Glass Filled
  • PTFE Filled
  • Static Dissipative
  • Metal Detectable
Sizes
Shape
Sizes

Dimensions: 12″ x 12″, 12″ x 24″, 12″ x 48″, 24″ x 24″, 24″ x 48″, 48″ x 96″, 48″ x 120″
Thickness: 0.030″ – 6″

Round
Diameter: 0.125″ – 14″

Hex
Diameter: 0.25″ – 1.125″

Square
Width: 0.375″ – 1″

Outside Diameter: 3″ – 8.5″

Physical Properties

UNITS ASTM
TEST		 Copolymer
ACETAL		 Homopolymer
ACETAL
Tensile strength @ break @ 73°F psi D638 4,500 – 9,690 7,000 – 9,800
Flexural modulus @ 73°F psi D790 264,000 – 434,000 305,000 – 464,000
Izod impact (notched) ft-lbs/in of notch D256 0.70 – 1.6 0.77 – 2.3
Deflection Temperature Under Load @ 264 psi °F D648 208 – 230 199 – 320
Maximum continuous service temp in air °F D794 207 – 212 185 – 302
Water absorption @ 73°F – 24 hours % D570 0.11 – 0.27 0.16 – 0.26
Compressive strength psi D695 4,400 – 16,000 5,200 – 16,000
Coefficient of linear thermal expansion (CLTE) (in/in°F) D696 7.2E-6 to 7.4E-5 5.4E-5 to 5.6E-5
Coefficient of friction D1894 0.005 – 0.46 0.070 – 0.25
Taber Abrasion Resistance mg D1044 13.8 – 14.0 12.8 – 13.1

*Technical Data is provided courtesy of UL Prospector (www.ulprospector.com) and IAPD (www.IAPD.org).

Data is to be considered representative and is provided for guidance only. All product performance must be verified by the user under actual application conditions.

Suppliers / Brands

Acetron®, Ertacetal®
Esinger
Tecaform®
Polymer Industries
UNITAL®
Rochling
Photo of gears made from Acetal Plastic

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