Silicone Balls
Ball Bearing
Soft, Flexible & Chemically Resistant
Silicone balls from Atlas Ball & Bearing provide excellent elasticity, chemical stability, and temperature tolerance, making them ideal for applications requiring non-reactive, soft, and durable precision balls.
Made from premium medical- and food-grade silicone, these balls maintain their shape and performance across a wide temperature range. They are perfect for use in valves, seals, gaskets, medical devices, food processing, and industrial equipment where flexibility and chemical inertness are essential.
150
Precision Ball Diameter
Why Choose Silicone Balls?
Silicone is a highly versatile polymer known for its elasticity, chemical resistance, and thermal stability. Silicone balls are lightweight, soft, and non-reactive, making them suitable for demanding industrial, medical, and food-grade applications.
Key Benefits
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Excellent elasticity and soft-touch performance
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High chemical and corrosion resistance
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Wide operating temperature range
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Lightweight and non-magnetic
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Electrically insulating
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Suitable for medical, food, and industrial applications
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Long-lasting and resilient under repeated compression
Manufacturing & Supply
We are capable of manufacturing and supplying loose silicone 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
Silicone balls are widely used in environments requiring soft, flexible, and chemically stable components.
Typical applications include:
Valves and check valves
Seals, gaskets, and diaphragms
Medical and laboratory devices
Food and beverage processing equipment
Chemical and corrosion-resistant systems
Precision mechanical assemblies
Silicone balls are available in various grades, including medical, food-safe, and industrial formulations to meet specific performance requirements.
Why Atlas Ball & Bearing?
Worldwide supplier of precision silicone balls
Large stock range with rapid domestic and international delivery
Expertise in high-performance elastomers for industrial, medical, and food applications
Custom sizes, hardness grades, and technical guidance available
Reliable quality, accuracy, and full traceability
Related Materials
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!