Meshing problem between slewing bearing and matching pinion

In the actual use of the slewing bearing and the pinion, problems often occur, resulting in wear, chipping, and abnormal noise on the tooth root or side of the gear, as shown in the following figure.

This phenomenon mainly occurs in pinion gears with gear quenching, which involves the following aspects:

·bending

      In high-force applications, dynamic load peaks under acceleration, braking action or vibration will cause elastic deformation in the meshing teeth.

·Center distance error

      Manufacturing tolerances in gear machining, especially pitch errors, cannot be prevented, which can have a negative impact when combined with bending effects.

·Drive unit

      Most slewing drive units are mounted in a cantilevered arrangement and the deflection of the pinion shaft is unavoidable. High force will simultaneously produce elastic deformation at the interface of the slewing drive and mounting structure. This deformation can also cause meshing problems.

·lubricating

      The three influencing factors mentioned will result in high peak loads acting on the edge of the pinion tip, which may cause the lubricant film to rupture and direct metal contact will increase the chipping effect.

Xuzhou Wanda Slewing Bearing Co.,Ltd. is a professional manufacturer and exporter of slewing bearing, which are mainly applied in port machinery, mining machinery, welding machinery, construction vehicles, modular vehicles and small wind power systems etc. Slewing bearing can bear axial force, radial force and tilting moment.The diameter range of slewing bearing we can provide can be from 200 mm to 5000 mm.