Precision Plastic & Polymer Balls

Ball Bearing

High-Performance, Lightweight & Chemically Resistant

At Atlas Ball and Bearing, we supply a comprehensive range of precision plastic and polymer balls engineered for demanding non-metallic applications. These balls offer outstanding resistance to chemicals, corrosion, wear, and extreme temperatures — all while being lightweight and cost-effective.

Ideal for industries including:

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Precision Ball Diameter

Polyacetal (Delrin®)

High Strength, Low Friction, and Dimensional Stability

Delrin® balls provide excellent mechanical strength and low friction, making them ideal for precision engineering in valves, gears, and moving parts in automation and robotics.

Polyamide (Nylon)

Tough, Wear-Resistant & Self-Lubricating

Nylon balls are lightweight and highly durable, often used in bearing applications, control systems, and mechanical assemblies where noise reduction and wear resistance are important.

Polyethylene (PE)

Lightweight, Chemical-Resistant & Non-Absorbent

Ideal for low-load, non-structural uses, PE balls are commonly used in laboratory and floatation applications due to their buoyancy and resistance to corrosion.

Polypropylene (Low Density)

Flexible & Chemically Resistant

LDPP balls offer a combination of flexibility and chemical resistance, suitable for use in chemical environments and fluid handling systems.

Polypropylene (High Density)

Rigid, Durable & Non-Leaching

With higher stiffness and durability, HDPP balls are used in filtration units, pump components, and piping where structural integrity is important.

Polystyrene

Low-Cost & Lightweight

Used in lab equipment and buoyancy systems, polystyrene balls offer good dimensional stability and are suitable for non-load-bearing components.

PTFE (Teflon®)

Extreme Chemical Resistance & Non-Stick Surface

Ideal for harsh chemical and high-temperature environments, PTFE balls are used in medical, food-grade, and corrosive applications.

Polyamide-imide (Torlon®)

High-Temperature, High-Strength Engineering Plastic

Torlon® balls offer exceptional thermal and wear resistance, making them suitable for aerospace, defence, and high-load engineering tasks.

Glass-Filled Nylon

High-Strength, Rigid & Dimensionally Stable

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

Phenolic Resin

Thermally Stable, Rigid & Lightweight

Used in light-duty bearings and insulators, phenolic balls are known for their electrical resistance and low thermal conductivity.

PEEK (Polyether Ether Ketone)

Top-Tier Performance Plastic

PEEK balls are chemically and thermally resistant, widely used in aerospace, medical implants, and aggressive industrial environments.

Manufacturing & Supply

We are capable of manufacturing and supplying loose precision plastic & polymer balls in nearly every variation of grade, maintaining an extensive stock with sizes ranging from 0.2mm to 150mm in diameter.

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 Precision Plastic Balls

Plastic balls are widely used across industries for their lightweight, corrosion resistance, non-magnetic properties, and chemical compatibility. Their versatility makes them ideal for both functional and precision applications in:

Medical & Pharmaceutical – Biocompatible plastics such as PTFE and PEEK are used in fluid handling systems, valves, and components for diagnostic and surgical equipment.
Aerospace & Automotive – Lightweight engineering plastics like Nylon and Delrin® reduce weight and friction in moving parts, control systems, and fuel components.
Water Treatment & Chemical Processing – Polypropylene and polyethylene balls resist chemical attack and moisture absorption, making them ideal for use in filtration systems, check valves, and floatation applications.
Food & Beverage– FDA-approved plastics like PTFE and HDPE are used in food-safe environments for mixing, flow control, and non-stick applications.
Laboratory & Scientific Equipment – Polystyrene and Polyacetal provide low-friction, non-reactive components for precise mechanical devices and instruments.
Electronics & Electrical Systems – Non-conductive plastics such as Phenolic Resin and Torlon® are used for insulating components, switches, and low-friction mechanical interfaces.
General Industrial Applications – Plastic balls are used in rollers, bearings, check valves, pumps, and casters due to their durability, low weight, and ability to operate in corrosive environments.

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!