ZYS Slewing bearing Internal factors mainly refers to the structural design,

Indeed , in the ideal prerequisite called permanent  ZYS Precision Bearings  life is possible. Factors affecting bearing life there are many factors that can be divided into use and internal factors . The main factor is the use of installation and adjustment , use and maintenance , repair and other maintenance meets the technical requirements. Installation conditions is one of the primary factors in the use of factors , caused by improper installation of the entire  rotary table bearing  force between the various parts of the state change, bearing in operation under abnormal state , and early termination of life. Internal factors mainly refers to the structural design, quality manufacturing processes and materials , such as the three factors that determine the quality of the bearing . Bearing manufacturing generally through multi -channel processing . The reasonableness of the processing technology , advanced, will also affect the stability of the bearing life . Which affect the quality of the finished cylindrical roller bearings heat treatment and grinding processes, and the failure of the bearing has a more direct relationship

Precision Bearing Because the former leads to the failure of both sides working conditions are similar

If you hear noise emitted by imported parts , first of all, it is important to find the location of the noise occurs . There are many moving parts may produce noise , and some may not rotate the rotation member and the contact member occurs . If the confirmation is four  Slewing bearings  noise , may be damaged and need replacing.  2. Because the former leads to the failure of both sides working conditions are similar , so even just a bad one , it is recommended to replace in pairs . 3. Relatively sensitive to imports, in any case need to adopt the taper roller bearing right approach and the right tools. In storage and during installation , the bearing parts can not be damaged. Require greater pressure pushed , so they need special tools. Be sure to refer to the manual . 4. Installation should be clean and tidy environment, will shorten the tiny particles into the four -row cylindrical roller bearing life. Maintaining a clean environment when replacement is important. Allowed to tap with a hammer , be careful not to fall to the ground ( or similar misconduct ) . Before installation of the shaft and housing should also check condition , even a slight wear will lead to poor fit , thereby causing damage.  Metallurgical quality imported bearing materials was the main factor in the impact of early bearing failure . With metallurgical technology ( such as bearing steel vacuum degassing, etc. ) 

ZYS taper roller bearing assembly and the contact surface must be clean .

( 1 ) Maintenance Technical slewing crane mounted holder must have sufficient rigidity , the mounting surface should be smooth . Slewing bearing assembly prior to the stress should be treated to reduce maintenance crane slewing bearing deformation. Slewing bearing assembly and the contact surface must be clean .

( 2 ) the use of crane maintenance techniques should be noted that the noise changes and changes in rotation ZYS aviation bearing sistance moment , crane maintenance , if any irregularities should be overhauled .

( 3 ) Maintenance Technical slewing tower crane must lift or store level , not vertical lifting crane maintenance or storage, in order to avoid distortion.

( 4 ) maintenance crane technology in the bolt is fully tightened before the crane inspection and maintenance ZYS Bearing life testing machine techniques should be meshing gears , the gears meshing conditions should be consistent with the requirements of precision : the crane maintenance techniques that gear pair operating at a slight braking surface of the lower teeth the distribution of the contact spot on the tooth height direction of not less than 25% , crane maintenance technology in the longitudinal direction of the tooth is not less than 30%.