Adjusting the clearance of a cojinete de giro is crucial for ensuring smooth operation, reducing wear, and extending its service life. The process varies depending on the bearing type (single-row ball, double-row ball, or cross-roller) and the manufacturer’s specifications.
Slewing Bearing Clearance Adjustment Method
1. Initial Assessment
Before adjusting the slewing bearing clearance, it’s important to assess the condition of the bearing and machinery:
Inspect the Bearing: Look for signs of wear, daño, or corrosion. If the bearing is significantly worn or damaged, it may require replacement.
Check Manufacturer Specifications: Ensure you know the recommended clearance values provided by the bearing manufacturer. These values are essential for setting the correct adjustment.
2. Required Tools
To adjust slewing bearing clearance, you will need the following tools:
Dial indicator or laser measurement tool
Feeler gauges
Llave de torsión
Shims or spacers (si es aplicable)
Jack (if lifting the structure is necessary)
Lubricación (specific grease or oil for the bearing)
3. Measuring Existing Clearance
Antes de realizar cualquier ajuste, it is important to measure the current clearance. This will help determine whether the bearing is within the desired tolerance or if adjustments are needed.
Axial Clearance:
Place a dial indicator perpendicular to the raceway.
Lift the upper structure (si es aplicable) slightly using a jack or lifting mechanism.
Measure the axial movement along the bearing’s axis.
Radial Clearance:
Attach the dial indicator parallel to the bearing’s radial surface.
Apply side force to the structure to check the movement in the radial direction.
Tilting Clearance:
Measure the angular clearance by placing the dial indicator at multiple points along the bearing. Check for any tilting or angular movement.
Record the measurements and compare them with the specifications. If the clearance is out of the acceptable range, proceed to adjustment.
4. Adjusting the Clearance
The adjustment process will vary depending on the bearing design. There are two main types of slewing bearings: adjustable bolt-type and gear-type.
For Adjustable Bolt-Type Bearings:
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For more detailed information on how to adjust the slewing bearing clearance, por favor haga clic aquí: https://www.mcslewingbearings.com/a/news/slewing-bearing-clearance-adjustment-method.html
