To provide a rolling bearing capable of applying to a miniature motor or the like in which the acoustic characteristic or the like is controversial while a degradation or performance decrement may not arise.

The rolling bearing comprises a plurality of rolling elements 3 arranged freely movably between the inner ring 1 and the outer ring 2, a retainer 4 which is holding the rolling element 3, a seal 5 which is sealing between the inner ring 1 and the outer ring 2 and in the retainer 4 or the seal 5 inner side part, grease 6 in which microcapsule 2-50 weight% are blended is included by 40-60 weight% of a prescribed inclusion quantity and the grease 7 in which the remaining 60-40 weight% microcapsule are not blended fills raceway surfaces 1a, 2a of the inner ring 1 and the outer ring 2. In this microcapsule, the lubricating oil or the additive agent for a lubricant is included by 10 weight% or more against the capsule total weight.