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Sapphire Balls
Sapphire Balls are high-precision spherical components in the Goodfellow range of balls. With 26 quantities available, these sapphire spheres enable precise engineering for applications like ball bearings, flow meters, and downhole tools for the oil and gas industry. The balls are polished to tight roundness and sphericity tolerances. Sapphire's hardness, wear resistance, and corrosion resistance make these spheres ideal rolling elements for harsh environments.
Formula: Al₂O₃ 99.9
Diameter: 5mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 464-605-07
Diameter: 5mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 464-605-07
SKU: 1000025426
Product Code: AL66-SP-000115
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
$1,900.44
each
- Buy 5 for $1,539.35 each and save 19%
- Buy 10 for $1,406.32 each and save 26%
No Minimum order
Free technical support
*Free delivery worldwide
Material Properties for Ceramics
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alkalis | Good |
| Halogens | Good |
| Metals | Good |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant | 7.5-11.5 |
| Dielectric strength( kV mm⁻¹ ) | 15-50 |
| Volume resistivity( Ohmcm ) | >10¹⁴@25 |
Physical Properties
| Element | Value |
|---|---|
| Refractive index | 1.71-1.79 |
| Useful optical transmission range | 200-5500nm |
| Apparent porosity( % ) | 0 |
| Water absorption - saturation( % ) | 0 |
| Density( gcm⁻³ ) | 3.985 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 2050 |
| Upper continuous use temperature( C ) | 1800-1950 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 750@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 35-40@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 5.8@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Tensile modulus( GPa ) | 350-390 |
| Hardness - Knoop( kgf mm⁻² ) | 2000 |
| Hardness - Vickers( kgf mm⁻² ) | 1600-1800 |
| Tensile strength( MPa ) | 250-400 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 2100 |
Other Customers Purchased
-
Yttria-stabilized Zirconia Balls Formula: ZrO₂/Y₂O₃
Diameter: 2mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 114168-16-0
UOM Code: 157-157-51
eachStarting at $343.89
Discounts applied for volume purchases -
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 -
Sapphire Powder Formula: Al₂O₃ 99.9
Maximum Particle Size: 60µm
Weight: 10000g
CAS Number: 1344-28-1
UOM Code: 701-621-10
eachStarting at $278.99
Discounts applied for volume purchases -
Torlon® 4203L Polyamide/imide Balls Grade: Torlon® 4203L
Formula: PAI
Diameter: 3.18mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 25.4µm
UOM Code: 310-352-72
eachStarting at $229.86
Discounts applied for volume purchases -
Sapphire Rod Formula: Al₂O₃ 99.9
Diameter: 1.5mm
Length: 15mm
Surface Finish: Ground
CAS Number: 1344-28-1
UOM Code: 916-109-17
eachStarting at $432.85
Discounts applied for volume purchases -
Tungsten Carbide/Cobalt Balls Formula: WC 94/Co 6
Diameter: 0.4mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
UOM Code: 022-279-80
eachStarting at $191.85
Discounts applied for volume purchases
