Slew Ring Grease

We recommend retightening the fasteners after the first two to four months of utilization and then proceeding to a systematic yearly check.

Slew ring grease.

Slewing bearing grease analysis. 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. The grease must entirely cover the flanks of the pinion and of the ring gear whether applying by brush or spraying. Before deliver from the factory the slewing bearing is filled with a small amount of ep ii.

Lubrication is especially important in the maintenance of slewing bearings. More than 96 of slewing ring failure could be avoided by following simple maintenance tips. New grease must be added before and after the machine has been shut down for a long time. When filling grease slowly turn the slewing ring to make the grease fill evenly.

Pump grease into the bearing until you see old grease squeeze past the seal. Inadequate lubrication is the most common cause of premature bearing failures. The slewing rings are essentially working in fatigue. 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.

Typically slewing ring bearings are used in excavators crane wind power turbine and other oscillating service. In case of some slewing ring bearings fatigue may occur due to improper internal lubrication. When begin use it the user should fill into full new grease which could make sure the slewing bearing works in good function. The lubrication must be filled with grease in each race until it seeps out from the seal.

Consisting of rings mounted with threaded fasteners and usually having a gear integral with one of the rings. Slewing bearing is normally used ep ii extreme pressure ii lithium ester. When lubrication is inadequate surface damage in the form of roughening or waviness occurs. Later fine cracks develop followed by flaking.