| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a straight line actuator of simple constitution capable of reducing the leakage of grease, abrasion dust with an optimum grease to a transmission device inside a housing, and reducing dust generation resulting from the grease and abrasion dust, etc. having leaked to outside the housing. <P>SOLUTION: The housing 210 of the straight line actuator 200 accommodates a transmission mechanism 270 and allows an output shaft 200 having a male threaded portion 221 and an input shaft 230 to be supported by a rotationally supporting mechanism 213 and extended to outside, wherein at the housing 210, the rotationally supporting mechanism 213 has bearing(s) 250 and an oil seal 260 installed outside the bearing, and the space between the bearing 250 and the oil seal 260 is filled with a low-dust generation grease G. <P>COPYRIGHT: (C)2011,JPO&INPIT |
