Cell Lab Aluminium Oxide (Al₂O₃) Precision Balls – 99.7 % pure, G20 grade ceramic spheres for bearings, valves and instrument calibration; wear-resistant and heat-resistant to 1600 °C.
Cell Lab Aluminium Oxide (Al₂O₃) Precision Balls – 99.7 % pure, G20 grade ceramic spheres for bearings, valves and instrument calibration; wear-resistant and heat-resistant to 1600 °C.

Cell Lab Aluminium Oxide (Al₂O₃) G20 Precision Balls [99.7 % Purity]

Cell Lab Aluminium Oxide (Al₂O₃) G20 Precision Balls [99.7 % Purity] High-accuracy ceramic balls for calibration, bearings, and wear-resistant applications General Description Cell Lab Aluminium Oxide (Al₂O₃) Precision Balls are manufactured from high-purity 99.7 % Al₂O₃ ceramic, offering exceptional hardness,...
Vendor: Cell Lab
SKU: CL0781
Product type: Laboratory Supplies
£39.00
£39.00
Size: Ф3.175mm (Ф1/8")
Quantity: 50pcs
Subtotal: £39.00
Cell Lab Aluminium Oxide (Al₂O₃) Precision Balls – 99.7 % pure, G20 grade ceramic spheres for bearings, valves and instrument calibration; wear-resistant and heat-resistant to 1600 °C.

Cell Lab Aluminium Oxide (Al₂O₃) G20 Precision Balls [99.7 % Purity]

£39.00
Cell Lab Aluminium Oxide (Al₂O₃) Precision Balls – 99.7 % pure, G20 grade ceramic spheres for bearings, valves and instrument calibration; wear-resistant and heat-resistant to 1600 °C.

Cell Lab Aluminium Oxide (Al₂O₃) G20 Precision Balls [99.7 % Purity]

£39.00
Size: Ф3.175mm (Ф1/8")
Quantity: 50pcs
Description
Description
x

Cell Lab Aluminium Oxide (Al₂O₃) G20 Precision Balls [99.7 % Purity]

High-accuracy ceramic balls for calibration, bearings, and wear-resistant applications

General Description

Cell Lab Aluminium Oxide (Al₂O₃) Precision Balls are manufactured from high-purity 99.7 % Al₂O₃ ceramic, offering exceptional hardness, corrosion resistance, and thermal stability. Their excellent roundness and surface finish make them ideal for bearing assemblies, valves, calibration standards, and precision instruments operating under harsh conditions.

These ceramic balls maintain performance even at elevated temperatures and in corrosive environments, though they are not recommended for strong acids or alkalis.

Custom sizes (0.8 mm – 76.2 mm) and precision grades (G20 – G100) are available upon request to support both industrial and research applications.

Key Features

  • High purity Al₂O₃ (99.7 %) ensures superior hardness and wear resistance.

  • Excellent precision (G20 grade) provides consistent accuracy and surface roundness.

  • Thermally stable and non-magnetic — ideal for high-temperature or vacuum environments.

  • Resistant to corrosion and oxidation in most neutral and mildly corrosive atmospheres.

  • Available in multiple sizes and grades for metrology, bearings, and laboratory use.

Technical Specifications

Product No.

Diameter

Purity (Al₂O₃)

Precision Grade

Colour

Custom Available Range

Material

Density

Max Temperature

CL0781

3.175 mm (1/8")

99.70%

G20

White

Diameter 0.8 – 76.2 mm │ Precision G20 – G100

High-purity Al₂O₃ ceramic

3.9 g/cm³ (typical)

1600 °C

CL0782

6.350 mm (1/4")

CL0783

12.700 mm (1/2")

Applications & Industries

  • Bearing and valve components

  • Precision instrument calibration and metrology

  • High-temperature and vacuum equipment

  • Electronic and semiconductor machinery

  • Research labs and quality control facilities

FAQ

Q1: What does “G20 precision” mean?
A: It indicates a high level of sphericity and surface finish according to ISO 3290 / ANSI standards — tolerances within 0.5 µm for typical diameters.

Q2: Are these balls chemically resistant?
A: Yes, they resist most neutral and oxidising environments but should not be used in strong acids or alkalis.

Q3: Can I order different sizes or tolerances?
A: Yes — Cell Lab offers custom manufacturing from 0.8 mm to 76.2 mm and precision grades G20 – G100.

Shipping & Return
Shipping & Return
x

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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