• 2016-05-12 05:36:00

Hydraulic excavators generally use single-row four-point contact ball internal tooth slewing bearings. When the excavator is working, the slewing bearing bears complex loads such as axial force, radial force and overturning moment, and its reasonable maintenance is very important. The maintenance of the slewing bearing mainly includes the lubrication...

• 2016-04-06 08:40:00

Slewing bearings are divided into internal gears and external gears and no gear, which are usually processed by gear hobbing machines or gear shaping machines.The advantages of external gear slewing bearing: the processing of the external gear is more convenient, the limited space of the slewing bearing can be used to the maximum, fault diagnosis, ge...

• 2015-08-05 06:53:00

The double row ball slewing bearing has three races. Steel balls and spacer blocks can be directly discharged into the upper and lower raceways. Arrange two rows of steel balls with different diameters according to the force. This open assembly is very convenient. The upper and lower arc raceway bearing angles are both 90°, which can bear large axial...

• 2015-06-17 10:58:00

1. Adjust the axial clearance and radial clearance of the bearing to negative clearance, zero clearance, and narrow clearance, such as (0.03-0.05).2. Bearing end runout and radial runout: Bearing end runout with a diameter less than 1m is 0.05 and radial runout is 0.08; bearing end runout with a diameter greater than 2m is 0.08 and radial runout is 0...

• 2015-04-22 06:02:00

The four-point contact ball slewing bearing is composed of two races, which is compact and light in weight. The steel ball is in contact with the raceway of the ring at four points, which can bear axial force, radial force and overturning moment at the same time. It can be used for construction machinery such as slewing conveyors, welding operators, ...