Slew Ring Grease

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

Slew ring grease.

When lubrication is inadequate surface damage in the form of roughening or waviness occurs. Consisting of rings mounted with threaded fasteners and usually having a gear integral with one of the rings. Pump grease into the bearing until you see old grease squeeze past the seal. The grease must entirely cover the flanks of the pinion and of the ring gear whether applying by brush or spraying.

Later fine cracks develop followed by flaking. When begin use it the user should fill into full new grease which could make sure the slewing bearing works in good function. Lubrication is especially important in the maintenance of slewing bearings. The lubrication must be filled with grease in each race until it seeps out from the seal.

In case of some slewing ring bearings fatigue may occur due to improper internal lubrication. In slewing ring bearings a heavy duty extreme pressure grease is required. Slewing bearing is normally used ep ii extreme pressure ii lithium ester. 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.

New grease must be added before and after the machine has been shut down for a long time. Before deliver from the factory the slewing bearing is filled with a small amount of ep ii. The slewing rings are essentially working in fatigue. Typically slewing ring bearings are used in excavators crane wind power turbine and other oscillating service.

Fill in the slewing bearing grease. Slewing bearing grease analysis. Inadequate lubrication is the most common cause of premature bearing failures. When filling grease slowly turn the slewing ring to make the grease fill evenly.