About Us Brands Download Contact Counter Sales FAQ Freight Payments Products Search Site Technical More Links...

Acetal - Materials - Technical

Acetal

BSO 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
Specific Gravity g/cm3 1.41   1.44  
Tensile Strength N/mm2 65 DIN53479 55 D638
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  
Dielectric Strength Kv/mm 55 DIN53481 12.8 D149
Melting Point oC 165   171  
Water Absorption % 0.25 20oC/60RH 0.14-0.21 D570 (24hr)
OperatingTemperature
Intermittent
oC 140   120  
OperatingTemperature
Continuous
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

  Wear
Factor "K"
Comparative Wear Rate to Acetron NS Coefficient of friction
Static Dynamic
Limiting PV
Acetron NS 23 1.0 0.13-0.19 0.15-0.19 10,000
DELRIN® Acetal Resin
AF
65 2.8 0.13-0.14 0.15-0.16 11,500
DELRIN® Acetal Resin
500 CL
176 7.6 0.12-0.14 0.20-0.21 3,500
Acetal 216 9.3 0.12-0.28 0.15-0.35 2,500
Turcite 251 10.9 0.13-0.17 0.17-0.18 6,500

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 Bearing Shop Online Acetal Online Catalogue pages.


The Small Parts and Bearings has a much larger range of engineering supplies.

Hobby and Engineering Supplies lists a smaller range of products and only the most popular items in each range. They also list many additional hobby specific categories.

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.



Other pages related to Technical - Materials

Click Page Banner Below

Top

Other Technical Pages

Click Page Banner Below

Top

Main Pages

Click Page Banner Below

Top





Top



PRODUCTS

Accessories Assortments Ball Parallels Ball Screw Accessories Ball Screws 16mm SDP Ball Screws Ground Ball Screws Rolled Ball Transfers Balls Ceramic Balls Metallic Balls Plastic Balls Rubber Bearings 316 Stainless Bearings Acetal Bearings Angular Contact Bearings Automotive Bearings Ceramic Bearings Clutch Bearings Conveyor Bearings Cylindrical Roller Bearings Double Row Ball Bearings Flanged Ball Bearings Grooved Profile Bearings Housings Bearings Hydrodynamic Bearings Mounted Bearings Needle Roller Bearings One Way Clutch Bearings PEEK Bearings Pivot Bearings Plates Bearings Press In Bearings Scale Bearings Self Aligning Ball Bearings Single Row Ball Bearings Special Purpose Bearings Spherical Roller Bearings Tapered Roller Bearings Thrust

Paypal Accepted
Paypal
Secure Checkout
See PAYMENTS


Bearings and Housings Insert Bearings for Dental Equipment Bearings for Housings Bearings for Skating Bearings for Wheelbarrows Belts Timing XL Pitch 15 Brushless Motor Bearings Bushes Bronze Bushes Plastic Bushes Steel Bushings Spherical Cam Followers Carburettor Parts Castors Accessories Castors Plate Castors Stud Circlips Clips Collars Dental Bearing Kits Dental Handpiece Parts Disk Cleaning Machine Drylin Bearings and Systems Dual Vee Bearings Engineering and Hobby Rod Fastening Bushings Fishing Reel Parts Food Processor Parts Gearbox Parts Gearmotors Basic Housings with Bearing Jockey Wheel Thrust Bearings Lazy Susans Leadscrews Linear Bearing Housings Linear Bearings Linear Bearings with Housing Linear Slides Locking Compounds MRI Table Bearings

Visa Card Accepted
Visa
Secure Checkout


Nuts Lock for Bearings ORings ORings for Dental Applications Oil Seals Pins Roll Positioning Power Tool Parts Pressure Rollers Pulleys Vee Pushbike Bearings Robotic Wheels Rod Ends PTFE Lined Rod Ends Plastic Rod Ends Stainless Steel Rod Ends Stamped Rod Ends Standard Rod Ends Studded Rollers Screws Grub Socket Set Screws Thumb Shafting Aluminium Shafting General Purpose Shafting Precision Ground Shaftloc Sleeves Special Effects Lighting Spring Washers Springs Disc Square Shaft Stroke Rotary Bushings Surplus Stock Swimming Pool Bearings Tension Bushings Thread Tools Threading Tube and Tubing Vacuum Cleaner Belts Washers Flat Metallic Washers Lock Wear Strips

Master Card Accepted
Mastercard
Secure Checkout


Wheels Industrial

Site Summary

Freight Rates
Terms and Conditions
Privacy Policy

Bearing Shop Online offers 25069 products in 533 categories including ball bearings, roller bearings, thrust bearings, ceramic and ceramic hybrid bearings, stainless steel bearings, miniature bearings, linear bearings, shafting, oil seals and adhesives - 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.

Bearing Shop Online is part of MBA Group offering a select range from the MBA Group catalogue.

Bearing Shop Online 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 Bearing Shop Online 1997. All rights reserved.