Excavator turntable bearing

Slewing bearing is widely used in construction machinery, especially excavator. The feature of excavator turntable bearing is with hardened inner gear
and the common diameter ranges from 1m-2m. 

At a glance: six steps to save slewing ring bearings

More than 96% of slewing ring failure could be avoided by following simple maintenance tips.

Grease regularly

Apply a liberal shot of extreme-pressure grease to the fittings around the bearing's circumference at intervals recommended in the operator's manual.

Purge with grease

Pump grease into the bearing until you see old grease squeeze past the seal. Purged grease can help carry any contaminants out of the bearing.

Inspect the grease

Rub some of the purged grease between your thumb and forefinger. If you see or feel grit or metal chips in it, there may be a bearing problem.

Honor load charts

Even slight overloads can dimple the bearing race. One 1/1000 of an inch depression will worsen with subsequent loads and cause eventual failure.

Avoid repetitive, heavy loads

Lifting with the boom and undercarriage in the same position, such as repetitive curbside digging with an excavator, can put a dimple in the bearing race

close to the uneven load. If possible, change the angle of approach from job to job.

Predict failure and repair the bearing

If the turning torque of the bearing increases substantially, or if you notice a clicking or grinding noise when rotating the structure, grease the unit and

have some of the purged lubricant analyzed for wear metals.

Xuzhou Wanda Slewing Bearing Co.,Ltd. is a professional slewing bearing manufacturer. We have strict quality control system in our own factory,

meanwhile, we have passed ISO9001:2008 Quality System Certification, certificates of Bureau Veritas and China Classification Society .

In order to ensure the quality, we purchase best quality raw material, use advanced production equipment and technology and conduct strict quality control.