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Rulon Bearings

Zell-Metall Engineering Plastics Zellamid 900 (POM-C)
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced

Material Notes: Zellamid® 900 is the registered trademark of Zell-Metall’s high molecular weight Acetal resin.

Acetal (POM) is noted for it’s high mechanical strength, heat resistance and good antifriction properties. As water absorption is almost nil dimensional accuracy and stability is higher than that of nylons. Physical properties remain unchanged in various environments. This material is manufactured in natural - Zellamid® 900 and black color - Zellamid® 900 SW, using Copolymer resin. Homopolymer Acetal is available on special request. Typical applications are gears, levers, springs, snap connectors, cam switches, clamps, pump components, mud handling equipment, electronic and office machines . Acetal lends itself also to all submerged applications.

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Physical PropertiesMetricEnglishComments
Density 1.41 - 1.43 g/cc0.0509 - 0.0517 lb/in³
Moisture Absorption at Equilibrium 0.20 %0.20 %50% RH; ISO 1110; DIN 53714
Water Absorption at Saturation 0.25 %0.25 %23°C; ISO 62; DIN 53495
 
Mechanical PropertiesMetricEnglishComments
Ball Indentation Hardness 115 MPa16700 psiH 358/30; ISO 2039; DIN 53456
Tensile Strength at Break 70.0 MPa10200 psiISO 527; DIN 53455
Elongation at Break 40 %40 %ISO 527; DIN 53455
Tensile Modulus 3.00 GPa435 ksiISO 527; DIN 53452
Charpy Impact Unnotched  80.0 J/cm² - NB
@Temperature -40.0 °C
381 ft-lb/in² - NB
@Temperature -40.0 °F
ISO 179; DIN 53453
 NB
@Temperature 23.0 °C
NB
@Temperature 73.4 °F
ISO 179; DIN 53453
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+15 ohm-cm1.00e+15 ohm-cmIEC 167; DIN 53482
Dielectric Constant 3.8
@Frequency 1e+6 Hz
3.8
@Frequency 1e+6 Hz
IEC 250; DIN 53483
Dielectric Strength >= 55.0 kV/mm>= 1400 kV/inIEC 243; DIN 53481
Dissipation Factor 0.024
@Frequency 1e+6 Hz
0.024
@Frequency 1e+6 Hz
IEC 250; DIN 53483
Comparative Tracking Index >= 600 V>= 600 VKB Method; IEC 112; DIN 53480
 
Thermal PropertiesMetricEnglishComments
CTE, linear 110 µm/m-°C
@Temperature 20.0 °C
61.1 µin/in-°F
@Temperature 68.0 °F
DIN 53752
Specific Heat Capacity 1.50 J/g-°C0.359 BTU/lb-°FDIN 52612
Melting Point 164 - 168 °C327 - 334 °FISO 1218 Method A; DIN 53736
Maximum Service Temperature, Air 100 °C212 °F20,000 hours; 50% Tensile Strength; IEC 216; DIN 53446
Deflection Temperature at 0.46 MPa (66 psi) 160 °C320 °FISO 75; DIN 53461
Deflection Temperature at 1.8 MPa (264 psi) 110 °C230 °FISO 75; DIN 53461
Flammability, UL94 HB
@Thickness 1.60 mm
HB
@Thickness 0.0630 in
Flame Spread 25.0 mm/min0.984 in/minBH3; VDE 0304T3

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PZELL05 / 72934

Aluminum Castings

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