Rolling element transmission
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United States of America Patent
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Dec 12, 2000
Grant Date -
N/A
app pub date -
Dec 30, 1998
filing date -
Dec 30, 1998
priority date (Note) -
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Abstract
A transmission includes a guideway (20) formed between a pair of tracks (22, 24) extending in a closed loop (21), and an endless train of rolling elements (X, Y, B) extending along the closed loop and rolling on the tracks and on each other. An input shaft (10) turns an input wheel (32) that carries a plurality of input wheel rollers (34), with the input wheel rollers pushing selected ones (X) of the rolling elements to move the train of rolling elements along the closed loop. An output shaft (12) is turned by an output wheel (40), with the output wheel carrying a plurality of output wheel rollers (36) that are in the path of the rolling elements to be moved by them. The rolling elements include rollers (X, Y) that roll along one track (24) and balls (B) lying between the rollers and rolling on the other track (22) and against the rollers.
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