To provide a sealing type rolling bearing for a motor capable of restraining a torque loss since no grease leaks from the lower end side of a bearing space even if the rotating shaft of the motor is supported in a vertical direction.
A seal to seal the upper end of the bearing space in which grease A is filled is classified as a non-contact seal 6 with no torque loss and a seal to seal the lower end of the bearing space is classified as a contact seal 7 with no ventilation holes and even if the bearing space rises in temperature with motor heat generation, an aeration through the clearance of the non-contact seal 6 on the upper end works not to increase the inner pressure and at the same time, the lower end is closely sealed by non-porous contact seal 7 and even if the rotating shaft 14 of the motor is supported in the vertical direction, grease A will not leak from the lower end side of the bearing space and the torque loss is so designed as to be restrained.
Torii Kazuhisa
Takayoshi Tagawa
Higashio Masahiro