Bearing seal and rolling bearing with seal
AssigneeNtn Corporation
InventorsTakahiro KANAMOTO, Wakana INOUE
Life of this patent
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Abstract
A bearing seal is provided which can be easily fitted into a seal groove formed in an outer race, and be kept firmly mounted to the outer race. First detent ribs and second detent ribs are formed on both surfaces of one side of a seal base plate made of rubber and having the shape of a stripe. When one side of the seal base plate is fitted into the seal groove formed in the inner diameter surface of the outer race, the first and second detent ribs come into elastic contact with the side surfaces of the seal groove, respectively, so as to prevent the bearing seal from being pulled out of the seal groove. Thus, it is possible to keep the bearing seal stably mounted to the outer race.
Claims9
A bearing seal comprising a strip-shaped seal base plate made of rubber and having a rectangular section,
- wherein one side of the seal base plate is configured to be fitted into a seal groove formed in an inner diameter surface of an outer bearing race or formed in an outer diameter surface of an inner bearing race so that the bearing seal is made annular-shaped along the seal groove,
- whereby a bearing space is sealed which is defined between the outer bearing race and the inner bearing race opposed to the outer race,
- wherein the one side of the seal base plate configured to be fitted into the seal groove constitutes a fitting portion having two side surfaces ,
- wherein a plurality of detent ribs are formed on at least an outer side surface of the two side surfaces which is located closer to an open end of the bearing space,
- wherein the plurality of detent ribs are spaced apart from each other in a width direction of the seal base plate, and
- wherein the detent ribs are configured such that due to fitting of the fitting portion into the seal groove, distal ends of the respective detent ribs come into elastic contact with a side surface of the seal groove.
Dependencies are inferred from the claim text.