Tokyo, Nov 9, 2011 (JCN) - NTN Corp. has developed a compact, lightweight electric actuator targeted at "shift-by-wire" applications in vehicles. The actuator allows increased efficiency and greater reliability for shift-by-wire application by incorporating a ball screw technology that is more efficient and compact than conventional products.
The dual shaft structure of the ball screw shaft and output shaft has been integrated into a single shaft to reduce the number of parts, decrease size and achieve major weight savings compared to conventional products. A proprietary positional sensor, which detects the position of protrusions directly from the output shaft, has been integrated within the compact frame, eliminating the need for a separate positional sensor or associated assembly processes.
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