| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling device of low dusting properties compared to the conventional art.SOLUTION: The present invention provides a rolling device which includes a grease composition sealed with a seal member, where the grease composition includes a thickener at the rate of 33.9-50.5 mass% to a total amount of the grease, where the thickener includes an aliphatic urea compound or an alicyclic urea compound, and an urethane compound so that the urethane compound becomes 5 mass% or more of the total amount of the thickener.SELECTED DRAWING: Figure 1 |
