1.deep groove ball bearing big ball bearings 2.T/T,L/C,Western Union,Paypal 3.by sea,by air,express 4.original manufacturer

user's manual

1.The bearing should be stored in the enviroment of dry;clean;ventilation and also the enviroment should without causticity gas.The relative humidity in the warehouseshould not exceed 60%,longer stored bearings have to be antirust in periodic(this period can't exceed one year).

2.When the user install the bearings,they can't use hard tool knock the bearing directly,especially the pressure can't transit to the rolling element.The user should use uniformity assistant tools to install the bearings.When the interference is bigger,the user have to put the bearing into mineral oil and heat the bearing to 90°C-100°C and than install the bearing at once.

3.If there is already dedicated grease in the clutch bearing or any sealed bearing,theuser doesn't have to clear the bearings when installation;you must have not to cook thebearing with oil or heat the bearings with any other method.

4.When the bearing is in using,you have to keep the bearing in good lubricity;keep the bearing away from dust with its seal.You have to always checking the bearing's function when it is in working.

5.The user have to attent the above directions,or any uncorrectable using way will effect the lifetime of the bearing.