1, the installation of rotary bearing Wheel bearing before installation, check the mounting surface of the host first, request support should have sufficient strength, junction surface should be mechanical processing, surface smooth without sundry and burr.Mechanical processing for unable to meet the requirements of planeness, can use special plastic filler injection intensity, to ensure the accuracy of the installation plane and for vibration reduction. Wheel bearing ring with quenching soft belt region, in the ring on the face of all marked "S", when installation should be in the position of the soft belt on the load area or not often load section (plug hole is always located on the soft belt). Installing a wheel bearing, should be advanced ways to locate, cross tighten mounting bolts, and monitor the rotation of the bearing.And tighten the screw down the bolt should be enough, it shall be the bolt pretightening material yield limit of 70%.Install bolts should be with conditioning flat washer and spring washer is strictly prohibited. 2, the maintenance of the wheel bearing Installed and functioning of the wheel bearing after the continuous running 100 hours, should be comprehensive check installation bolt pre-tightening torque is in line with the requirements, after each repeat this check a continuous run of 500 hours. Wheel bearing installed should fill the right amount of grease, and should be filled and slewing bearing with grease evenly distributed.Wheel bearing at work after a period of time, will inevitably lose part of grease, so the wheel bearings in normal operation intervals of 50 ~ 100 hours after a grease should be added. 3 wheel bearings, transport and storage Bearing in the process of transportation, should be placed on the vehicle, due to prevent sliding and the measures to prevent vibration, plus auxiliary support when necessary. Bearings should be in a dry, ventilated and flat field on placed, storage should be seperated from with corrosive chemicals and other items.If you need more overlapping sets of bearing pile, each set should be evenly placed along the circumferential direction between three or more equal the height of the block of wood, and the lower level block placed. More than antirust period deposit of bearing has to be continued, should be cleaning and antirust treatment again.