Pursuit of Heartbeat From Details
 
 
 Description 
 
Silicon Nitride Ceramic Ball G5 Precision Solid Bearing Balls  Dia 0.8mm-25.4mm
 
  • This ceramic ball is a high grade silicon nitride ceramic ball with a very bright appearance and a high accuracy level for a wide range of uses, such as: full ceramic bearings, hybrid ceramic bearings, tools and gauges, valve seals, pumps, vans and more.
  • Compared with steel ball, the main advantages of silicon nitride ball are :
  • 01  59% lighter than steel balls, greatly reducing the bearing high-speed and accelerated operation of the centrifugal force on the groove, crushing and wear;
  • 02 The modulus of elasticity is 44% larger than steel, which means that the amount of deformation in the force is greatly reduced than steel balls;
  • 03 Higher hardness than steel, HRC reaches 78;
  • 04 The coefficient of friction is small;
  • 05 Coefficient of thermal expansion is 1/4 of steel, can withstand drastic changes in temperature;
  • 06 Easy to obtain a high surface finish, Ra can reach 4 to 6 nanometers;
  • 07 High temperature resistance: silicon nitride ceramic ball at a high temperature of 1050 ° C still has a high strength, hardness;
  • 08 Never rust, can work in oil-free lubrication conditions;
  • 09 More resistant to chemical corrosion than steel;
  • 10 No metal pollution;
  • 11 Non-magnetic;
  • 12 Electrically insulated.
  • 13 No adhesive wear;
  • The combination of these excellent properties makes silicon nitride the first choice for high-performance bearing rolling element materials.
 
 
Package includes 
 
  • According to your choose. 
 
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 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 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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