Precision Ceramic, Synthetic Ruby & Glass Balls
Non-metallic balls provide complete electrical insulation, non-magnetic neutrality, 60% lower density than steel, and exceptional chemical inertness. Silicon Nitride (Si3N4) balls enable hybrid ceramic bearings to operate at ultra-high speeds with near-zero thermal expansion, while synthetic ruby corundum spheres deliver extreme dimensional stability for CMM metrology probes.
Technical Parameters & Compliance
Manufacturing Advantages
- Chemically inert in aggressive pharmaceutical and semiconductor fluids.
- Does not require lubrication in cleanroom or cryogenic environments.
- Ultra-smooth Ra ≤ 0.012µm surface polish for zero-wear contact.
- Available in micro-diameters from Ø 0.50mm upwards.
Available Non-Metallic & Ceramic Balls
Plastic Balls
Versatile plastic balls from Rama & Sons, including Nylon, Polypropylene (PP), PTFE (Teflon), and POM (Delrin). Lightweight, corrosion-resistant, and suitable for low-friction applications, check valves, and flow indicators.
Ruby Balls
High-precision synthetic ruby balls by Rama & Sons, known for extreme hardness, exceptional wear resistance, chemical inertness, and dimensional stability. Used in metrology, styli, and precision instruments.
Glass Balls
Corrosion-resistant glass balls (soda-lime or borosilicate) from Rama & Sons. Ideal for check valves, flow meters, bearings in corrosive environments, and decorative purposes.
Ceramic Balls
Durable engineering ceramic balls offering excellent wear resistance, high-temperature stability, electrical insulation, and corrosion resistance. Supplied by Rama & Sons for demanding applications.
Silicon Nitride Ceramic Balls
High-performance silicon nitride (Si3N4) balls from Rama & Sons with exceptional hardness, high strength, low density, and excellent thermal shock resistance. Used in hybrid bearings and high-speed applications.
Need Custom Sizes or Small Test Quantities of Non-Metallic & Ceramic Balls?
We manufacture prototype test batches (10 to 50 pieces) and custom non-standard decimal diameters (such as 4.789mm) with zero minimum order penalties.