| 摘要 |
According to an embodiment of the present invention, a bearing having a dust cap comprises: an inner race which is placed centering on a rotary shaft; an outer race which is placed with a set interval from the outer circumference of the inner race and where a groove is formed on the outer circumference at one side end; a rolling member which is included between the inner race and the outer race; an adhesive member which fills the groove; and a dust cap which is fastened to the outer race such that the inner circumference thereof can adhere to the outer circumference at one side end of the outer race and can be attached to the adhesive member. The dust cap is indented and mounted in an inboard side of the outer race and the inner race in order to prevent foreign materials from infiltrating between the outer race and the inner race. The outer race includes an outer race protrusion protruding from the end of the inboard direction. The inner circumference of the dust cap can adhere to the outer circumference of the outer race protrusion. Therefore, a groove is formed on the outer circumference of the outer race, which adheres to the inner circumference of the dust cap, and the adhesive member (loctite) is filled inside the groove in order to improve sealing performance between the outer race and the dust cap and durability thereof. In addition, the groove is formed in the central part of an indentation surface of the outer rate, which adheres to the inner circumference of the dust cap in order to further improve the sealing performance and durability. [Reference numerals] (AA) Outboard; (BB) Inboard |
