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KHV Planetary Gearing - November/December 1987

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Archive > 1987 > November/December 1987 > KHV Planetary Gearing

The article "KHV Planetary Gearing" appeared in the November/December 1987 issue of Gear Technology.

Summary
Traditionally, a worm or a multi-stage gear box has been used when a large speed ratio is required. However, such boxes will become obsolete as size and efficiency become increasingly important considerations for a modern transmission. The single-enveloped worm gear has a maximum speed ratio of only 40 to 60. Its efficiency is only 30 to 60 per cent. The necessity of using bronze for the worm gear and grinding nitoalloy steel for the worm drives up material and manufacturing costs.

Keywords
planetary gears, design

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