| 摘要 |
PROBLEM TO BE SOLVED: To provide a long-life rolling bearing in which a grease with excellent biodegradability and a less harmful influence to an natural environment is sealed. SOLUTION: This deep groove radial ball bearing is constituted of an inner ring 1, an outer ring 2, a plurality of balls 3 which are rollably arranged between the inner ring 1 and the outer ring 2, and the grease G filled in a space 5 which is formed between the inner ring 1 and the outer ring 2 and the balls 3 are equipped inside thereof. The grease G contains base oil whose main composition is a vegetable oil having biodegradability and an auxotonic material composed of a metallic soap. |
