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POM Homopolymer Balls
POM Homopolymer Balls are part of Goodfellow's range of precision ball bearings. They are made of POM homopolymer, a tough and rigid engineering thermoplastic that provides excellent wear and abrasion resistance. With 2 variations available, these balls can be customized for use in applications like food processing equipment, medical devices, and industrial machinery where low friction, chemical resistance, and dimensional stability are required. The tight dimensional tolerances and smooth surface finish make POM Homopolymer Balls ideal for precision ball bearings.
Formula: Acetal - Homopolymer POMH
Diameter: 1.59mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 25µm
CAS Number: 9002-81-7
UOM Code: 522-505-65
Diameter: 1.59mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 25µm
CAS Number: 9002-81-7
UOM Code: 522-505-65
SKU: 1000163073
Product Code: OX31-SP-000110
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
$180.99
each
- Buy 5 for $146.61 each and save 19%
- Buy 10 for $133.94 each and save 26%
No Minimum order
Free technical support
*Free delivery worldwide
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Poor |
| Acids - dilute | Poor - Fair |
| Alcohols | Good-Fair |
| Alkalis | Poor |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor(?) |
| Halogens | Poor |
| Ketones | Good - Fair |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.2-0.35 |
| Hardness - Rockwell | M94 |
| Poisson's ratio | 0.35 |
| Elongation at break( % ) | 40-75 |
| Tensile modulus( GPa ) | 2.9-3.1 |
| Izod impact strength( J m⁻¹ ) | 75-130 |
| Tensile strength( MPa ) | 70 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 3.7 |
| Dissipation factor @ 1MHz | 0.005 |
| Dielectric strength( kV mm⁻¹ ) | 20 |
| Surface resistivity( Ohm/sq ) | 10¹⁵ |
| Volume resistivity( Ohmcm ) | 10¹⁵ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | HB |
| Radiation resistance | Poor |
| Resistance to Ultra-violet | Poor |
| Limiting oxygen index( % ) | 15 |
| Water absorption - equilibrium( % ) | 0.6-0.9 |
| Water absorption - over 24 hours( % ) | 0.25 |
| Density( gcm⁻³ ) | 1.42 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 170 |
| Heat-deflection temperature - 1.8MPa( C ) | 135 |
| Upper working temperature( C ) | 80-120 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1500 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.22-0.24@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 122 |
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Alumina Balls
Formula: Al₂O₃
Quantity: 10 Pcs
Type: Non-Precision Sphere
Sphericity: Nominal
CAS Number: 1344-28-1
UOM Code: 439-337-21eachStarting at $117.65
Discounts applied for volume purchases -
POM Copolymer Rod Formula: Acetal - Copolymer POMC
Diameter: 25mm
Length: 500mm
Colour: Natural
UOM Code: 037-076-70
eachStarting at $154.40
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POM Copolymer Film Formula: Acetal - Copolymer POMC
Thickness: 1mm
Length 1: 1000mm
Length 2: 1000mm
UOM Code: 045-423-19
eachStarting at $143.13
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ESD 90 POM Copolymer Rod Grade: ESD 90
Formula: Acetal - Copolymer POMC
Diameter: 25mm
Length: 50mm
Colour: Natural
UOM Code: 116-191-21
eachStarting at $159.38
Discounts applied for volume purchases -
POM Homopolymer Rod Formula: Acetal - Homopolymer POMH
Diameter: 100mm
Length: 200mm
Colour: White
CAS Number: 9002-81-7
UOM Code: 057-550-91
eachStarting at $145.35
Discounts applied for volume purchases -
POM Homopolymer Film Formula: Acetal - Homopolymer POMH
Thickness: 5mm
Length 1: 300mm
Length 2: 300mm
CAS Number: 9002-81-7
UOM Code: 029-323-65
eachStarting at $141.50
Discounts applied for volume purchases
