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Technical Paper

A GRAPHICAL DETERMINATION OF CHANGE SPEED GEAR BEARING LOADS

1910-01-01
100001
The question of the selection of the proper sizes of ball-bearings for any given set of conditions is one that should properly receive the consideration of those most expert in their design and application. However, in change speed gear design, where the ratio between the diameters of the bearings and the diameters of the gears is small, the sizes of the bearings have so great an influence on the center distance of the shafts and the shape and outline of the casing that a change in the bearings from those originally laid out frequently necessitates the redesigning of the whole job.
Technical Paper

Development of STORM Series Diesel Engine (D1146, D1146T, D2366, D2366T)

1800-01-01
871218
For the purpose of satisfying today's market demands, new 8 and 11 liter diesel engines, named "STORM" series, have been developed and moved into production in 1986. Based on the predecessors which have been produced since 1975, the development of the STORM series aimed high performance, low emission, long life-time and low operating costs. In order to consult customers' convenience, exchangeability of engine parts and commonality of vehicle installations with the former engines had to be maintained. This paper describes the development work of STORM engines, and the design aspects and performance characteristics of these engines.
Technical Paper

Correlation of Bending Strength and Errors of Helical Gear

1800-01-01
871223
CORRELATION OF BENDING STRENGTH AND ERRORS OF HELICAL GEAR has not been clarified sufficiently even now. As the investigation by using only experimental method is not sufficient and so the analytical method of obtaining gear bending strength has been developed by one of the authors. Hence, the correlation of bending strength and errors, especially in the aspect of the direction of pressure angle error and tooth trace error, is clarified by this analytical method which was verified by some experiments. And by further investigations, it is confirmed that the helical gear is tougher against the negative pressure angle error, and the fine module gear is sensitive against the errors.
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