Slew Ring Grease

In slewing ring bearings a heavy duty extreme pressure grease is required.

Slew ring grease.

The lubrication must be filled with grease in each race until it seeps out from the seal. Later fine cracks develop followed by flaking. Watch his brief video and learn from jeff payne caterpillar maintenance expert how to maintain the swing bearing and swing gear on your cat hydraulic exca. Pump grease into the bearing until you see old grease squeeze past the seal.

In case of some slewing ring bearings fatigue may occur due to improper internal lubrication. Slewing bearing grease analysis. When filling grease slowly turn the slewing ring to make the grease fill evenly. Before deliver from the factory the slewing bearing is filled with a small amount of ep ii.

We recommend retightening the fasteners after the first two to four months of utilization and then proceeding to a systematic yearly check. Fill in the slewing bearing grease. Inadequate lubrication is the most common cause of premature bearing failures. Consisting of rings mounted with threaded fasteners and usually having a gear integral with one of the rings.

Lubrication is especially important in the maintenance of slewing bearings. Slewing bearing is normally used ep ii extreme pressure ii lithium ester. New grease must be added before and after the machine has been shut down for a long time. The slewing rings are essentially working in fatigue.

The grease must entirely cover the flanks of the pinion and of the ring gear whether applying by brush or spraying. More than 96 of slewing ring failure could be avoided by following simple maintenance tips. This video shows how i got access to the 360 degree slew gear ring on a jcb micro digger it was found to be lacking grease and covered in dirt i was the. Apply a liberal shot of extreme pressure grease to the fittings around the bearing s circumference at intervals recommended in the operator s manual.