Double-row ball slewing bearings are based on the design of two parallel raceways, in which force transmission and rotary motion are achieved by the upper and lower rows of steel balls or rollers of different diameters rolling in the raceways. This design enables the slewing bearing to withstand large axial forces and tilting moments while maintaining structural stability and rotational flexibility.Maintaining double-row ball slewing bearings is crucial to ensure their optimal performance, долголетие, и надежность.
Double-row ball slewing bearings maintenance
1. Routine Inspection
Частота: Conduct visual and operational inspections at least monthly or as recommended.
What to Check:
Physical Damage: Look for cracks, носить, or corrosion on the raceway and balls.
Unusual Sounds: Listen for abnormal noise during operation.
открытие подающего дроссельного клапана → закрытие подающего дроссельного клапана → начало выгрузки псевдоожиженного слоя → окончание выброса псевдоожиженного слоя → поднимите зажимной цилиндр мешка → переверните мешок → следующий цикл: Measure axial and radial clearances; deviations may indicate wear.
Smooth Rotation: Check for resistance or stiffness in movement.
2. Proper Lubrication
Type of Grease: Use a high-quality grease as recommended by the manufacturer (например, lithium-based grease).
Частота:
Re-grease every 50-100 operating hours or based on conditions like load and environment.
Increase greasing intervals in dusty, wet, or high-temperature environments.
Процедура:
Rotate the bearing slowly while applying grease to ensure uniform distribution.
Remove old grease and contaminants before applying new grease to prevent contamination.
3. Bolt Tightening
Inspection Interval: Check bolts every 100 operating hours or after heavy use.
Tightening Torque: Use a torque wrench to tighten bolts to the specified values from the manufacturer.
Replacement: Replace worn, loose, or corroded bolts immediately to prevent failure.
4. Sealing System Maintenance
Инспекция: Regularly check seals for wear, наносить ущерб, or displacement.
Cleaning: Clean the area around the seals to remove debris and contaminants.
Replacement: Replace damaged seals to maintain proper sealing and prevent foreign particles from entering.
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