Cage structure of roller bearing
AssigneeKoyo Seiko Co., Ltd.
InventorsNobutsuna Motohashi, Fukumitsu Kitauchi, Nobuyuki Miyawaki
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Abstract
A cage of a roller bearing including a plurality of pockets formed by punching from the outside, each storing a roller, in the circumferential direction of a barrel, which comprises a first projection for preventing the roller from being disassembled to the outside of the barrel and a second projection for preventing the roller from being disassembled to the inside of the barrel. The first projection is provided at a thin portion of the barrel which is formed between the brims of the pocket. The second projection is provided at a thick portion of the barrel in the axial direction by knurling.
Claims4
A cage of a roller bearing including a plurality of pockets formed by punching from the outside in a circumferential direction of a barrel, each pocket storing a roller, comprising:
- a first projection for preventing the roller from being disassembled to the outside of the barrel, said first projection being provided at a thin portion of said barrel which is positioned beside the brims of each pocket;
- and
- a second projection for preventing the roller from being disassembled to the inside of said barrel, said second projection being provided at a thick portion of said barrel in an axial direction, by knurling.
A cage of a roller bearing including a plurality of pockets formed by punching from the outside, each pocket for storing a roller, in the circumferential direction of a cylindrical shaped barrel, comprising;
- a thin portion provided at an outermost location and a central section of a plurality of bars between adjacent pockets, and
- a pair of projections oppositely disposed in the circumferential direction at said thin portion, the distance between said oppositely disposed projections of an opening therebetween being smaller than a diameter of said roller;
- roller guide surfaces of each of said bars having sheared surfaces at a radially outer side and broken surfaces at a radially inner side.
Dependencies are inferred from the claim text.