Pit & Quarry, November 2012
PIT SToP Heat damage discoloration or checks Electrical damage burns fluting or pitting Mechanical damage fatigue flaking cracks and spalling fracture nicks peeling or smearing brinelling indentation scoring abrasive wear installation damage misalignment or lubrication failure Most resource manuals describe the damage and may help to eliminate the causes but they often do not venture into the relationship between damage and reparability It is always recommended to contact a bearing service technician to assist in any damage assessment or for repair feasibility Repair options and methods Various industries and applications may demand different scopes of repair service but generally repair service tends to fall into three types One type of service generally describes the recertification or clean and inspection repair process A second service generally applies to the reconditioning or polishing repair process Bearings with more extensive damage require a third level of service referred to as the remanufacturing process This level involves extensive processes such as regrinding of races replacement of rollers or cage components and The outer race of a spherical roller bearing in need of bearing remanufacture Introducing the new Metso Lokotrack ST24 mobile screen High capacity fuel ef cient The new Lokotrack ST24 combines high capacity with top quality end products The ST24 delivers the lowest cost per ton in its size class through better fuel efficiency higher output and low operating costs For reliable cost effective screening contact your Metso distributor today metso com email minerals nam@ metso com Lokotrack ST24 mobile screen 40 PIT QUARRY November 2012 www pitandquarry com
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