. The Street railway journal . August, 1896.] STREET RAILWAY JOURNAL. 461 The average life of motor parts, gears and lubricants,as determined from the experience of tlic company, is asfollows: Brushes 2860 miles. Steel }j;ears 001 in. per roo car miles. The j^ears are allowed to wear .25 in., so that their life is a littleiiiKlor one year. Cast iron j^ears about half as lonj^ as steel gears. Cut pinions 4,6 and 8 months. Gear grease 250 lbs. per j 00,000 car miles. Motor grease 450 Lubricating oil 18 gals.

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884