1Pack:1piece

Bearing structure:CGR15 steel ring+ SI3N4 ball+nylon cage+Rubber seal cover

About rubber seal cover:we have different colors, for example :black, red, blue,

and we always Random send.

Hybrid ceramic ball  bearing:instead of steel and other metal materials to make rolling body,

The purpose is to make use of the former better than the latter,or the latter does not have wear-resisting.

Corrosion resistance.High temperature resistance.Electrical insulation (except SiC).

Non magnetic field High stiffness.Small proportion ETC.Hybrid ceramic ball bearing can used in

 high-speed .harsh condition and Low lubrication.and it can help reduce wear, noise, and vibration.

To Make maintenance easier,Thus, the longer life of the bearing is achieved, and its performance

and reliability are greatly improved.

Remind:Some areas can pay directly with Alipay, and if you have any pay problem, please contact us,

let us to help you solve.

1.EMS, DHL, FEDEX, UPS are available.when you need this ways, please contact us

2.Under $5usd,we will send to you by china post ordinary mail, If you want the tracking number,

please kindly pay the China Register Air Post Mail cost.

3.you will get your products within 20-60 days, please wait for your package patiently.

4.Moveover, fast shipping EMS, DHL, FEDEX will spend 5-15 workdays for you to get your items, thank you.

5.If the shipping company do not ship the iterms to your country .we will change the same grade shipping .

6.if you want to know where is your order , you can Sign in : http://global.cainiao.com/  If you have other any delivery question, plaese Contact us by email or Ali TradeManager.

 We will try our best to help you !

We accept large quantities of orders, all products can be customized, if necessary,

you can contact customer service to discuss prices.

1.You satisfaction and positive feedback is very important to us.Please leave positive feedback and 5 stars

       if you are satisfied with our items and service.

2.If you have any problems with our items or services,please feel free to contact us first before you leave

     negative feedback.We will do our best to solve any problems and provide you with the best customer services.

3.Your encouragement and support is our continuously forward momentum.Thank you very much!