. The Street railway journal . out taking the motor from thetruck, or the motor may be removed from the truck by simplytaking off the gear case and axle caps. Three bales con-veniently located make handling of the motor easy. Bolts withnuts and lock washers hold the two halves of the frame to-gether and the axle caps in proper position. The housings for the armature bearings are circular in formand are turned slightly larger in diameter than their seats inthe frames, so that when clamped in place all the advantagesof a press fit are obtained. Finished shoulders on the housingsprevent any later
. The Street railway journal . out taking the motor from thetruck, or the motor may be removed from the truck by simplytaking off the gear case and axle caps. Three bales con-veniently located make handling of the motor easy. Bolts withnuts and lock washers hold the two halves of the frame to-gether and the axle caps in proper position. The housings for the armature bearings are circular in formand are turned slightly larger in diameter than their seats inthe frames, so that when clamped in place all the advantagesof a press fit are obtained. Finished shoulders on the housingsprevent any lateral movement, and also take the entire endthrust of the armature instead of imposing this severe strainon the clamping bolts. Two bolts through the frame at eachend prevent the housing from turning. The armature bearings are made of solid phosphor-bronzebushings finished all over, with a 3-32-in. lining of babbitmetal. If from neglect the bearings should become so hot asto melt the babbit, the armature would be supported on the. ARMATURE brass shell and would not strike the poles. Both oil and wastelubrication are provided. The waste comes in contact with thebearings on the low-pressure side and is supplied with oil fromseparate pockets from below; in this way it is filtered beforereaching the bearing. The amount of oil in the reservoirs maybe gaged so that it may be kept at the proper level for econom-ical service. With intelligent care these bearings will run100,000 miles to 150,000 miles. The axle bearings are similar in construction to those, of thecommutator, except that split bushings are used. Here alsolubrication is by means of oil and waste, the oil being suppliedfrom below. This is the same method which has given such
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
