EPDM Rubber Balls
Ball Bearing
Weather-Resistant, Durable & Flexible
EPDM rubber balls from Atlas Ball & Bearing offer excellent resistance to weathering, ozone, UV exposure, and water. Designed for outdoor, sealing, and low-load applications, these EPDM rubber balls maintain flexibility and performance in environments where long-term exposure to the elements is a key concern.
Manufactured from high-quality ethylene propylene diene monomer (EPDM) rubber, these EPDM rubber resin balls provide reliable elasticity, good abrasion resistance, and long service life across a wide temperature range.
150
Precision Ball Diameter
Why Choose EPDM Rubber Balls?
EPDM rubber is widely valued for its outstanding resistance to environmental factors. EPDM balls perform exceptionally well in outdoor, wet, and steam-exposed environments, maintaining flexibility and mechanical integrity over long periods.
They are particularly suitable for applications involving water, mild chemicals, and continuous exposure to weather or UV radiation.
Key Benefits
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Excellent resistance to weathering, ozone, and UV
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Good resistance to water, steam, and mild chemicals
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Flexible and resilient elastomer
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Reliable compression set resistance
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Suitable for outdoor and wet environments
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Good electrical insulation properties
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Available in multiple hardness grades (Shore A)
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Cost-effective elastomer solution
Manufacturing & Supply
We are capable of manufacturing and supplying loose EPDM 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.
Applications
EPDM rubber balls are widely used in applications where environmental resistance and flexibility are essential.
Typical applications include:
Valves and sealing systems
Water and steam handling equipment
Outdoor mechanical assemblies
HVAC and plumbing systems
Automotive cooling and braking systems
Industrial machinery exposed to weather
Damping and vibration control
EPDM balls are available in multiple sizes, tolerances, and hardness grades to suit sealing, cushioning, and low-load mechanical applications.
Why Atlas Ball & Bearing?
UK-based supplier of high-quality EPDM rubber balls
Extensive stock with rapid UK and international delivery
Wide range of sizes, grades, and hardness options
Expertise in elastomer and industrial rubber materials
Consistent quality, dimensional control, and full traceability
Related Materials
Explore other elastomer and rubber balls in the Atlas Ball range:

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 Grades
| Grade | Diameter Tolerance per Ball | Sphericity | Diameter Tolerance per Unit Container | Basic Diameter Tolerance | Maximum Surface Roughness Micro | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 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!