-Stainless steel collar + Si3N4 silicon nitride ceramic ball + nylon retainer + rubber seal。
-Advantages: Good lubrication effect; Good rust prevention effect (over time, there may be some rust on the surface); Long service life。
-The purpose of using ceramic materials instead of steel and other metal materials as rolling elements in hybrid bearings is to utilize the wear resistance, corrosion resistance, high temperature resistance, electrical insulation (except for SiC), non magnetic, high strength, high stiffness, and small specific gravity that the former is better than the latter or the latter does not have. The use of ceramic materials can enable bearings to operate normally in higher speeds, more harsh environments, and low lubrication situations, while reducing wear, noise, vibration, and making maintenance easier, thereby achieving a longer bearing service life and significantly improving its performance and reliability。

 

Package Include: According to your choose

 

 

 

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.

 

 

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.

 

 

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 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.