Acetal - Materials - Technical
HES Products made from this material
Balls, Bearings, Bushes, Gears, Rod, Sheet
Also known as polyoxymethylene (POM). Acetal is a widely used rigid engineering plastic. It is highly resistant to fatigue and cracking and resistant to many solvents. It has a low coefficient of friction and remains stable in reasonably high temperatures, making it an excellent choice for bushes and bearings.
Properties of Acetal
|PROPERTY||UNIT||ACETAL||TEST METHOD||ACETRON||TEST METHOD|
|Elongation (break)||%||>30||DIN53455||20-30||D638 (71oC)|
|Modulus of Elasticity||N/mm2||3000||DIN53457||2450||D638 (23oC)|
|Impact Strength||KJ/m2||no break||DIN53453||63-84||D1822 (23oC)|
|Coefficient of friction||0.32||0.19|
|Water Absorption||%||0.25||20oC/60RH||0.14-0.21||D570 (24hr)|
|oC||-40 to + 100||-40 to + 82|
|Flammability||Slow Burning||UL||Slow Burning||UL|
Note! Property values are typical and should be used only as a guide to selection of materials and not as purchase specifications.
Comparison: Wear Rate, Coefficient of Friction and Limiting PV data
PV factor is used to express limiting conditions for the operation of plain bearings. P=load (psi). V=surface velocity (fpm).
K factor is a wear factor in.3-min/ft-lb-h
|Comparative Wear Rate to Acetron NS||Coefficient
|DELRIN® Acetal Resin
|DELRIN® Acetal Resin
DELRIN®is a registered trademark of DuPont.
Acetron NS is a patented acetal-based compound containing special solid lubricants which help provide superior performance in bearing applications. Acetron NS provides high Pressure Velocity (PV) capabilities, a low coefficient of friction and an extremely good "k" factor.
You can find acetal in the Hobby and Engineering Supplies Acetal Online Catalogue pages.
For a huge range of bearings online please visit the Bearing Shop Online Website.
The Small Parts and Bearings has a much larger range of engineering supplies.
For the best range of miniature and small bearings please try the Miniature Bearings Australia website. Miniature Bearings Australia also list a large variety of miniature engineering products.
Extra information for Technical - Materials
Registered Australian Company: Hobby & Engineering Supplies Pty Ltd (ABN 54 125 001 541)
Hobby and Engineering Supplies offers 6227 products in 435 categories including low priced hobby bearings, screws, brass and aluminium rod and tubing, shim - see the full listing in the Online Catalogue. We have excellent Freight Rates within Australia and worldwide. We offer a choice of delivery with a signature required, or cheaper options with no signature required. The no signature required options are at the customer’s risk once the goods leave our store.
Using the links throughout this site you will find extensive information including catalogues, technical data, and other product specific information. We sell our products worldwide through our online store and our overseas freight rates are competitive for fully traceable courier delivery.
Hobby and Engineering Supplies is part of MBA Group offering a select range from the MBA Group catalogue.
Hobby and Engineering Supplies products are not authorised for sale into the USA or Canada due to the reluctance of Australian insurers to provide product liability insurance into those two countries.
Information on this website is Copyright Hobby and Engineering Supplies 1997. All rights reserved.