46 FEA TURES AND BENEFITS OF 51 57 63 RIMS AND WHEELS 4 Use of highstrength lo wallo y material in crucial components Assures maxim um f atigue lif e 4 Shotpeened loc k ring gr oo ve and other high stress areas Pro vides f a v o r a b le residual compressiv e stress in cr itical areas f or long lif e 4 Mac hined loc k ring gr oo ves and mating component surfaces Assures e v en stress distr ib ution f or maxim um f atigue lif e and saf ety 4 Mac hined oring gr oo ves Pro vides positiv e sealing and air retention 4 XRa y of cir cumf erential weld joints W o r ld class quality assur ance of submerged arc w elds eliminates potential w eld prob lems 4 Stateofthear t computer monitoring of flash b utt welds Assures highest quality and reliability 4 Superior corr osion resistance and appearance W e off er super ior corrosion resistance and appear ance due to the use of m ultiple stage w ashers surf ace pretreatment and final top coat with ECoat or poly ester po wder coat 4 Use of seamless r olled rings to fabricate critical sections and components Rolled r ings ha v e no b utt w elds and are man uf actured to pro vide super ior strength and f atigue lif e