slewing bearing wear measurement

During the use of the slewing bearing, measurement and inspection are used to avoid possible wear rings or to detect wear at an early stage.

This in turn prevents unnecessary maintenance costs and production downtime. This is why we recommend regular inspections of the slewing ring and wear measurement

Slewing bearing raceway wear is usually noticed by reducing or changing the axial motion.

According to the actual application, raceway wear can be determined by reducing or tilting clearance measurements.

The wear of the transmission device largely depends on the actual application.

• Deceleration measurement

If the load of the slewing ring is mainly axial (the load center within the raceway diameter of the slewing ring),

it is recommended to perform deceleration measurement.

The deceleration measurement is also carried out between the lower adjacent structure and the slewing bearings fastened to the upper adjacent structure.

• Tilt clearance measurement

For slewing bearings that mainly bear tilting moment (such as cranes),

it is recommended to measure the tilt clearance of the slewing ring.

The tilt clearance is measured between the lower adjacent structure and the slewing bearing fastened to the upper adjacent structure.

The measuring point should be as close as possible to the raceway system to keep the influence of lowed formation .

• Tilt clearance measurement procedure

1) Define the measurement position during debugging.

2)Take a reference measurement during debugging.

3)  Mark the measuring points on the circumference (or measuring points every 90°).

4) use a accuracy of at least 0.01mm dial gauge.

5) Apply the maximum counter moment to set the dial gauge to zero.

6) Generate forward tilting moment through load capacity.

7) Rotate the upper structure and repeat the measurement at the marked position.