. Electric railway journal . This cars recordpoints the way For years we have pointed out to railwajmen that Hess-Bright ball bearings were essen-tial in order to realize the maximum economyaccruing from the use of ball bearings. This cars record lends striking emphasis tothe superiority of Hess-Brights in railwayservice. On this 52,000-lb. car Hess-Bright bearingshave been in operation for 200,000 car miles No. 74 motors, 65 hp. When removed the bearings were measuredfor wear, with the following results: The pinion bearing only .009 radial freedom The commutator bearing .. only .0014 r

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. Electric railway journal . This cars recordpoints the way For years we have pointed out to railwajmen that Hess-Bright ball bearings were essen-tial in order to realize the maximum economyaccruing from the use of ball bearings. This cars record lends striking emphasis tothe superiority of Hess-Brights in railwayservice. On this 52,000-lb. car Hess-Bright bearingshave been in operation for 200,000 car miles No. 74 motors, 65 hp. When removed the bearings were measuredfor wear, with the following results: The pinion bearing only .009 radial freedom The commutator bearing .. only .0014 radial freedom A slight grinding and polishing of the racegrooves will make the bearings practically asgood as new and ready for another 200,000miles of typical H-B service. Hess-Brights Conrad PatentsAre Thoroughly Adjudicated HESS-BRIGHT PHILADELPHIA. 48 ELECTRIC RAILWAY JOURNAL [July 7, 1917

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