G3-G100 17/32″ (13.494mm) Silicon Nitride Balls for EV Motors and Robotics
| Item No : | 13.494 mm Silicon Nitride Ceramic Balls |
| Diameter : | 13.494 mm (17/32 Inch) |
| Material : | Silicon Nitride (Si3N4) |
| Lead Time : | 3-5 days |
| Grade: | G3-100 |
| MOQ : | 50 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
Searching for the perfect mid-sized ceramic rolling elements for next-generation electric vehicles or precision robotics? The 13.494mm (17/32 inch) Silicon Nitride (Si3N4) Ceramic Balls are engineered to solve the exact pain points of modern high-tech industries. Weighing only about 4.12 grams each, they prevent electrical pitting in EV traction motors and completely eliminate galling (cold welding) in vacuum semiconductor manufacturing equipment. Available from standard industrial G100 up to ultra-precise G3 grades, these spheres are the backbone of advanced hybrid bearings. As a trusted B2B bearing trader, we empower your production with high-performance RMO brand Si3N4 balls in bulk, alongside comprehensive global sourcing for specialized OEM ceramic components.
⚙️Product Features:
- Specific 17/32″ Geometry: Carefully sized at 13.494mm, making it a highly demanded component for specialized mid-to-large hybrid ceramic ball bearings.
- Anti-Galling & Self-Lubricating: Si3N4 material prevents microwelding with metal raceways, ensuring extremely low friction even in starved-lubrication or dry-running conditions.
- Absolute Electrical Isolation: Acts as a perfect insulator, eliminating bearing fluting caused by stray currents in frequency inverter-driven motors (VFDs) and EVs.
- Low Thermal Expansion: Dimensional stability is unmatched; it retains its perfect sphericity and exact 13.494mm diameter even during aggressive temperature fluctuations.
- B2B Volume & Precision Agility: Whether sourcing G3 for ultra-precision measurement tools or G100 for heavy chemical processing, our flexible supply chain adapts to your scaling needs.
⚙️Product Application:
Bridging the gap between lightweight agility and structural strength, the 13.494mm Si3N4 ball is crucial for:
- Electric Vehicle (EV) traction motor hybrid bearings (preventing electrical pitting).
- Semiconductor manufacturing machinery and vacuum robotics joints (dry-running).
- High-performance cycling components (bottom brackets and wheel hubs).
- Precision measurement instruments and specialized optical equipment.
- Global EV parts manufacturers, robotics integrators, and advanced bearing factories.
⚙️Precautions:
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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⚙️Obtain Certificate:
About Rimao
Since its establishment in 2011, Rimao Bearing has combined international vision with local wisdom and injected innovative ideas into every bearing and pulley with its profound industry accumulation and unremitting pursuit of technology. We have not only passed CE and ROHS certification, but also set a new benchmark in the industry and led the development trend of the bearing industry.
We are not just a ball bearing and roller bearing importer and wholesaler. We provide real solutions to help you achieve the product and design goals set by your customers. With more than 20 years of production and sales experience, tens of thousands of models and specifications, we look forward to cooperating with you!
⚙️Technical Parameters:
| Model No. | |
| Diameter | |
| Material | |
| Precision Grades | |
| Density | |
| Hardness | |
| Max Working Temp. | ~ 800°C (1472°F) |
| Thermal Expansion | 3.2 x 10⁻⁶ /°C (Extremely low dimension change) |
| Magnetic/Electrical Properties | |
| Weight per Piece | ~ 4.12 grams |
| Supply Capability | RMO Brand Bulk Wholesale & Global OEM Sourcing |
| Package | |
| Lead Time | |
| Shipping | |
| Payment | 100% TT, or 30% TT In Advance, 70% TT After Finished Production |
| Steel Ball Size & Weight Chart (Reference Only) | |||
| Diameter | kg/1000pcs | Pcs / kg | |
| inch | mm | ||
| 8 | 2.09 | 478 | |
| 8.5 | 2.5 | 400 | |
| 11/32 | 8.731 | 2.71 | 369 |
| 9 | 2.97 | 337 | |
| 3/8 | 9.525 | 3.52 | 284 |
| 10 | 4.08 | 245 | |
| 13/32 | 10.3188 | 4.48 | 223 |
| 11 | 5.42 | 185 | |
| 7/16 | 11.1125 | 5.6 | 179 |
| 11.5 | 6.22 | 161 | |
| 29/64 | 11.5094 | 6.22 | 161 |
| 15/32 | 11.9062 | 6.88 | 145 |
| 12 | 7.04 | 142 | |
| 31/64 | 12.3031 | 7.6 | 132 |
| 1/2 | 12.7 | 8.35 | 120 |
| 17/32 | 13.4938 | 10 | 100 |
| 14 | 11.18 | 89 | |
| 9/16 | 14.2875 | 11.9 | 84 |
| 19/32 | 15.0812 | 14 | 71.4 |
| 5/8 | 15.875 | 16.3 | 61.3 |
| 16 | 16.69 | 59.9 | |
| 21/32 | 16.6688 | 18.9 | 52.9 |
| 17 | 20.02 | 50 | |
| 11/16 | 17.4625 | 21.7 | 46.1 |
| 18 | 23.806 | 42 | |
| 23/32 | 18.2562 | 24.8 | 40.3 |
| 19 | 27.96 | 35.77 | |
| 3/4 | 19.05 | 28.2 | 35.5 |
| 25/32 | 19.9438 | 31.9 | 31.4 |
| 20 | 32.7 | 30.58 | |
| 13/16 | 20.637 | 35.8 | 27.9 |
| 21 | 37.75 | 26.49 | |
| 27/32 | 21.4313 | 40.1 | 24.9 |
| 22 | 43.52 | 22.98 | |
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