| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device improving moldability and film strength of an insulating material such as a resin film for electrolytic corrosion prevention. SOLUTION: A step portion 21b including a flange face 21d extending radially is formed in an intersection between the external circumferential face 21h of a side 21a of an outer ring 21 and the side 21a, and the insulating body R is covered with the flange face 21d of the step portion 21b so that for example, when a bearing presser 15 is pressed toward the side 21a of the outer ring 21 in assembling, no radial outward force is applied to the insulating body R sandwiched between the bearing presser 15 and the flange face 21d and thereby suppressing fracture and peeling of the insulating body R.
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