| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotation transmission device with built-in one-way clutch, capable of performing stable clutch operation over a long period in a wide temperature range up to the high temperature from the low temperature. <P>SOLUTION: This rotation transmission device with built-in one-way clutch is sealed with grease for satisfying the whole of the following (1)-(4) : (1) a friction coefficient in a ball-on-disk test at a sliding speed of 0.2 m/s in bearing pressure of 2 GPa is 0.06-0.18, (2) apparent viscosity in a shearing speed of 200s<SP>-1</SP>at -40°C is less than 1-Pas, (3) yield stress at -40°C is less than 100 Pa, and (4) immiscible consistency at -40°C is larger than 160. <P>COPYRIGHT: (C)2009,JPO&INPIT |
