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Main : Misc Packard Photos :  REAR AXLE DRIVING PINION FINISHING MACHINES - 20174-A

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REAR AXLE DRIVING PINION FINISHING MACHINES - 20174-A
REAR AXLE DRIVING PINION FINISHING MACHINES - 20174-APopular
SubmitterBigKevMore Photos from BigKev    Last Update2018/7/23 8:05    Tell a friendTell a friend
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These machines finish-cut the Hypoid spiral rear axle driving pinion which is
connected to the rear universal joint. This pinion meshes with the ring gear and
drives the rear wheels. These machines are very accurate, cutting these gears to
a manufacturing limit of one-half thousandths.
In the upper right hand corner of this picture there.is illustrated the Hypoid
ring gear and pinion $ also the spiral bevel ring gear and pinion.
About 17 years ago in this very room the first spiral bevel gears and pinions were
originated and developed. In originating these gears, Packard designed, built
and for many years controlled every machine used in cutting such gears.
Previous to Packard's introduction of the spiral bevel gears, every automobile
used either straight tooth bevel gears for final drive or chain and sprocket - so
here is another example of Packard's contribution to the industry.
It is to be expected that Packard should be the.first in the industry to develop
and establish the Hypoid gear which has so capably superseded the spiral bevel
type of drive. Packard took practically as many fundamental steps in the development
of the Hypoid gear as it did in the development of the spiral bevel and many
thousands of these gears were out in Packard axles before the industry recognized
their ability.
The Hypoid gear has 22jĄ more sliding action than any of the old type spiral bevels.
You and your prospects can judge the future by the past} just as Packard was ahead
of the times in the development of these gears, its .future will be governed by the
adoption of every sound engineering principle.

Picture courtesy of Roscoe Stelford

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