Among marine mooring equipment is made up of many components that make up the more common steel knife gate valves like the chain , cable, bollards , as well as mooring mooring volume cars and machinery . Most now are white with brown funicular cable and wire rope , and then the cable system to the various styles of bollards to go above .
But the role of fairlead is to guide ropes to guide , control the position of the guide lock , the other can reduce the friction of the cable and the hull. Fairlead also by the various components together constitute , for example, is a fairlead , roller fairlead , fairlead rollers.
Among the current marine equipment , roller fairlead has a very important role , its structure is very compact , performance is very stable, and have a certain reliability. This paper describes some of the roller fairlead tolerance situation .
1 , marine roller fairlead usual , they also call it fairlead cake , its size is not the same , is a series of products , most of the middle of the roller fairlead will have a ball , this article will introduce the Some ball bearing bore and shaft tolerances , and tolerances and the introduction cylindrical roller bearings between .
2 , with the tolerance of ball bearings and shaft bore hole basis is generally in H7/k6;
3, with the tolerance of the bearings and cylindrical roller fairlead hole basis is basically K7/h6;
But with the development of society, the shipbuilding industry will be further developed , with roller fairlead place will be more and more, at the time of application of these ship parts , these parts can be deeper understanding , so that these parts can be fully utilized.
