| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing device capable of achieving an increased speed, the increased life and maintenance-free operation, by continuously stably supplying grease base oil sealed in a grease reservoir to a track surface of a fixed side track wheel. SOLUTION: This rolling bearing device includes an inner wheel 1, an outer wheel 2 and a rolling body 3. For example, the fixed side track wheel is the outer wheel 2. A spacer 6 is provided adjacent to the outer wheel 2. An annular grease reservoir moulding 7 forming a grease reservoir 10 inside is provided at the inner circumference of this spacer 6. A projection 14 whose tip contacts a step face 2b is provided on a tip face 13 of a gap forming piece 7b of the grease reservoir moulding 7, and a gap 12 between the step face 2b and the location of the tip face 13 where no projection 14 is present, constitutes an oil passage whereby the grease base oil of the grease reservoir 10 is fed to an outer wheel track face 2a. The gap forming piece 7b is clamped between an end face of the spacer 6 and the step face 2b. COPYRIGHT: (C)2010,JPO&INPIT
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