Slewing bearing generally includes mounting holes, lubricants hole and sealing devices.

 

Slewing bearing forms include single row four-point contact ball bearings, double row ball bearing, single row crossed roller bearing and three rows of cylindrical roller bearing .

 

1. Single row four-point contact ball bearings has the high dynamic load capacity,main application dynamic mechanical which requirements higher dynamic.Such as crane, excavator and so on.

 

2. Double row ball bearings and three row roller bearing , due to improve the carrying capacity of attention to the bearing height direction, various load respectively by different raceway and roller group, so under the same loading condition, so it make the host more compactly, it is a kind of high bearing capacity slewing ring.

 

3. Single row crossed roller bearing has high Static load capacity ,main application the stillness equipment at work.And four-point contact ball slewing bearing just opposite.