| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing for an idler pulley capable of preventing the deterioration of grease at a high temperature, and capable of preventing a low temperature noise by securing lubricity at a low temperature at a low cost. <P>SOLUTION: In the bearing 10 for the idler pulley capable of being attached to a pulley member 2 imparting desired tension to a belt wound around an outer peripheral surface, a pocket part 16 of a crowned cage 14 is constituted by spherical surface parts 16a and 16c and a cylindrical surface part 16b. Urea synthetic oil-based grease of which base oil has kinematic viscosity of 30-60 mm<SP>2</SP>/sec. at a temperature of 40°C is sealed in a space where a ball 13 is arranged. <P>COPYRIGHT: (C)2008,JPO&INPIT |
