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.

In slewing ring bearings a heavy duty extreme pressure grease is required. Before deliver from the factory the slewing bearing is filled with a small amount of ep ii. Apply a liberal shot of extreme pressure grease to the fittings around the bearing s circumference at intervals recommended in the operator s manual. 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.

Fill in the slewing bearing grease. Later fine cracks develop followed by flaking. Slewing bearing grease analysis. The slewing rings are essentially working in fatigue.

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. In case of some slewing ring bearings fatigue may occur due to improper internal lubrication. The lubrication must be filled with grease in each race until it seeps out from the seal.

The grease must entirely cover the flanks of the pinion and of the ring gear whether applying by brush or spraying. When filling grease slowly turn the slewing ring to make the grease fill evenly. When begin use it the user should fill into full new grease which could make sure the slewing bearing works in good function. Slewing bearing is normally used ep ii extreme pressure ii lithium ester.

Typically slewing ring bearings are used in excavators crane wind power turbine and other oscillating service. 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. Lubrication is especially important in the maintenance of slewing bearings.