Non-Metallic Balls

Ball Bearing

Lightweight, Chemically Resistant & Versatile

Atlas Ball and Bearing supplies a broad range of non-metallic balls engineered for performance in non-conductive, chemically aggressive, or lightweight applications. These materials are ideal for industries requiring non-corrosive, non-magnetic, and high-durability solutions.

Our non-metallic balls are widely used in:

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150

Precision Ball Diameter

Precision Plastic / Polymer Balls

Polyacetal (Delrin®)

High-strength plastic with low friction and excellent dimensional stability. Used in valves, gears, and precision mechanical components.

Polyethylene (PE)

Lightweight, chemical-resistant polymer. Suitable for low-load, non-structural applications.

Polyamide (Nylon)

Tough and wear-resistant, nylon balls are ideal for bearings, control systems, and mechanical devices.

Glass-Filled Nylon

Reinforced nylon offering improved dimensional stability and strength. Used in structural components and wear-resistant parts.

Polypropylene (Low Density)

Flexible and lightweight. Used in chemical and water applications due to its chemical resistance.

Polypropylene (High Density)

More rigid and durable than low-density PP. Used in filtration, pump components, and piping systems.

Polystyrene

Low-cost, lightweight plastic suitable for lab devices, floatation, and low-friction components.

Polyamide-imide (Torlon®)

High-performance plastic with excellent strength, thermal stability, and wear resistance. Used in aerospace and high-load environments.

Phenolic Resin

Rigid and thermally resistant, commonly used in electrical insulators and light-duty ball bearings.

PEEK (Polyether Ether Ketone)

High-performance thermoplastic with excellent chemical and thermal resistance. Used in medical implants and aerospace.

PTFE (Teflon®)

Exceptional chemical resistance and non-stick properties. Used in food-grade, medical, and aggressive chemical environments.

Rubber & Elastomeric Balls

Nitrile (Buna N)

An oil-resistant elastomer with good abrasion resistance. Commonly used in fuel systems, hydraulic applications, and industrial seals.

Polyurethane (PU)

Durable, abrasion-resistant elastomer used in damping, rollers, and vibration-absorbing systems.

Fluoroelastomer (Viton®)

Resistant to high temperatures, fuels, and aggressive chemicals. Ideal for seals and valves in harsh chemical environments.

Ethylene Propylene (EPDM)

Excellent resistance to weathering, ozone, and water. Commonly used in outdoor and water-handling applications.

Neoprene

Versatile rubber with moderate oil and weather resistance. Used in HVAC, automotive, and marine applications.

Glass Balls

Soda Lime Glass

Economical glass type for low-load, non-conductive environments. Used in flow meters and medical instruments.

Borosilicate Glass

Thermal shock resistant and chemically stable. Used in scientific and optical applications.

Synthetic Sapphire

Extremely hard and scratch-resistant. Used in optical, medical, and watch components.

Synthetic Ruby

Hard, non-conductive material. Common in instruments requiring precision and wear resistance.

Ceramic Balls

Silicon Nitride (Si₃N₄)

High Strength, Thermal Shock Resistance, and Low Density

A lightweight, non-porous ceramic offering exceptional hardness, corrosion resistance, and low thermal expansion. Ideal for high-speed, high-load applications.

Silicon Carbide (SiC)

Exceptional Hardness and Thermal Conductivity

It has excellent chemical resistance, high wear resistance with good mechanical properties, including high temperature strength and thermal shock resistance.

Alumina (Al₂O₃)

Cost-Effective, Chemically Stable Ceramic

Alumina ceramic balls resist corrosion and abrasion extremely well. They also have low thermal conductivity and a high resistance to heat.

Zirconia (ZrO₂)

High Toughness and Smooth Surface Finish

Provides the highest fracture toughness of all ceramic materials. Its smooth surface and impact resistance make it suitable for various applications.

Manufacturing & Supply

We supply non-metallic balls in a wide range of materials and sizes, typically from 0.5mm to 100mm, with tight tolerance controls. Custom materials, colours, and properties available on request.

Please feel free to rate our products and service or send us your comments by using our form opposite →

Additionally, we offer a bespoke ball manufacturing service, which follows the same process controls and traceability but uses a customer’s own material. For further details, please email us or call +44 (0) 1922 710515.

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Applications of Non-Metallic Balls

Non-metallic materials are chosen for their unique advantages across industries:

Medical – Biocompatible materials for valves, pumps, and surgical tools
Aerospace & Automotive – Lightweight, high-performance polymers
Water Treatment– Corrosion-resistant plastics and elastomers
Laboratory & Optical – Precision glass and ceramic components
Food & Beverage – Food-grade plastics like PTFE and PEEK
Electronics – Non-conductive, low-friction plastic solutions

Useful terms and definitions

Batch or Lot:

A defined quantity of balls manufactured under conditions presumed to be uniform and which is considered an entity.

Nominal Ball Diameter:

The diameter value that is used for the general identification of a ball size.

Single Ball Diameter:

The distance between two parallel planes tangential to the actual ball surface.

Diameter Tolerance per Batch:

The allowed difference between the smallest measured ball diameter and the largest ball diameter within the same batch or lot quantity.

Sphericity:

A measure of roundness expressed as the difference between the measured roundness of a ball and a theoretically perfectly round ball.

Surface Finish or Roughness:

A measure of the texture of a surface. It is quantified by the vertical deviations of the actual surface from its ideal form. If these deviations are large, the surface is rough; if they are small, the surface is smooth.

Ball Grade Table (Sticky 1st Column)

Ball Grades

Grade	Diameter Tolerance per Ball		Sphericity		Diameter Tolerance per Unit Container		Basic Diameter Tolerance		Maximum Surface Roughness Micro
Grade	Inch	µ	Inch	µ	Inch	µ	Inch	µ	Inch	µ
3	.000003	0.076	.000003	0.076	.000005	0.127	±.00003	± 0.076	0.5	0.013
More details about Grade 3...
5	.000005	0.127	.000005	0.127	.00001	0.25	±.00005	± 0.127	0.8	0.02
More details about Grade 5...
10	.000010	0.25	.000010	0.25	.00002	0.51	±.0001	± 2.5	1.0	0.025
More details about Grade 10...
15	.000015	0.38	.000015	0.38	.00003	0.76	±.0001	± 2.5	1.2	0.03
More details about Grade 15...
25	.000025	0.63	.000025	0.63	.00005	1.27	±.0001	± 2.5	1.5	0.038
More details about Grade 25...
50	.00005	1.27	.00005	1.27	.0001	2.5	±.0002	± 5	3.0	0.075
More details about Grade 50...
100	.0001	2.5	.0001	2.5	.0002	5	±.0005	± 5	5.0	0.125
More details about Grade 100...
200	.0002	5	.0002	5	.0004	10	±.0010	± 10	8.0	0.2
More details about Grade 200...
300	.0003	7.5	.0003	7.5	.0006	15	±.0015	± 37.5	N/A	N/A
More details about Grade 300...
500	.0005	12.5	.0005	12.5	.001	25	±.002	± 50	N/A	N/A
More details about Grade 500...
1000	.001	25	.001	25	.002	50	±.005	± 125	Not Applicable	Not Applicable
More details about Grade 1000...
2000	.002	50	.002	50	.004	100	±.005	± 125	N/A	N/A
More details about Grade 2000...

Sample Our Work!

Take the first step towards precision and quality with our expert services. At Atlas Ball & Bearing, we’re committed to delivering top-notch precision balls and rollers for a wide range of industries, including gas, oil, medical, and transportation. Our dedicated team is ready to assist you with custom solutions tailored to your specific needs. Experience the Atlas Ball & Bearing difference now!