Silicon Nitride Ceramic Ball Dia 2.381~11.1125 High Temperature Resistance

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Ships to: US,
Item: 296563523115

Condition:New
Unbranded:Unbranded
MPN:Does Not Apply
Country/Region of Manufacture:China

eBay Product features: This ceramic ball is a high-grade silicon nitride ceramic ball with a very bright appearance and high precision level. It has a wide range of applications, such as: all ceramic bearings, mixed ceramic bearings, tools and measuring tools, valve seals, pumps, valves, etc Compared to steel balls, the main advantages of silicon nitride balls are: 1. Lighter than steel balls by 59%, greatly reducing the centrifugal force, rolling, and wear on the channel during high-speed and accelerated operation of the bearings 2. The elastic modulus is 44% higher than that of steel, which means that the deformation under stress is significantly reduced compared to that of steel balls; 3. The hardness is higher than that of steel, with an HRC of 78; 4. Low friction coefficient; 5. The coefficient of thermal expansion is 1/4 of that of steel and can withstand temperature fluctuations; 6. Easy to achieve high surface smoothness, Ra can reach 4-6 nanometers; 7. High temperature resistance: Silicon nitride ceramic balls still have high strength and hardness at a high temperature of 1050 ° C; 8. Never rust, can work under oil-free lubrication conditions; 9. More resistant to chemical corrosion than steel; 10. No metal pollution; 11. Non magnetic; 12. Electrical insulation; 13. There is no adhesive wear; The combination of these excellent properties makes silicon nitride the preferred material for high-performance bearing rolling elements. Usage: Silicon nitride ceramic balls can be used for various bearings with extreme performance requirements: high-speed/ultra high speed bearings, high-precision bearings,Vacuum bearings, high/low temperature bearings, non-magnetic bearings, high-precision ball screws; It can also be used as a valve ball, floating valve, fixed valve, and measuring ball in chemical pumps, high-temperature pumps, and metering pumps. Silicon nitride ceramic balls are generally assembled into hybrid bearings, which can be applied in high-tech industries such as aviation, national defense, and other industries, and can also be widely applied Used in other industries such as chemical, metallurgical, medical, food, oil fields, electronics, etc. Product features: Stable product performance and good consistency. Diameter specifications: Φ 0.4mm~ Φ 140mm. This model 3.175, 3.969, 4.762, 5.953, and 6.35 are all suitable for repairing bicycle drums, axles, and tower bases. Bicycle enthusiasts: The diameter of the Shimanomt15 front and rear wheel set ball is 4.763mm (20-22 particles) and 6.35mm (18-20 particles) The diameter of the front flower drum ball for Shimano M525 is 4.763mm, with a total of 22 balls. The diameter of the rear flower drum ball is 6.35mm A total of 18 pills. Package Including: Ceramic bearing x Based on your choice Payment: We accept Paypal only, It is fast, Easy and Safe. Payment must be completed within 7 days. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Shipping: We Ship to Worldwide. Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that’s why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed. We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address. Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delivered) Items are shipped via China Post Air Mail. Guarantee: Good Good quality. Buy with confidence! If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it. Not accept returning of electronic components. Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer. We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

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