CAGE SEGMENT FOR THE CAGE OF A ROLLER BEARING
The invention relates to a cage segment for the cage of a roller bearing, having at least two peripheral sections extending in the peripheral direction and at least two connecting sections. The peripheral sections and the connecting sections form at least one pocket for receiving a rolling body. The cage segment has a coupling unit which connects the front of the cage segment to another cage segment.
1 . Cage segment for the cage of a roller bearing comprising: at least two circumferential webs extending in the circumferential direction and at least two connecting webs, the circumferential webs and the connecting webs forming at least one pocket for receiving a rolling body, wherein the cage segment has a coupling unit which is designed to connect the end side of the cage segment to another cage segment.
2 . Cage segment according to claim 1 , wherein the coupling unit is designed in such a way that a connection with another cage segment has a clearance fit.
3 . Cage segment according to claim 2 , wherein the coupling unit is configured such that the clearance fit of the coupling unit has a value to absorb swelling and thermal expansion of the cage segment.
4 . Cage segment according to claim 2 , wherein a first coupling element is provided on a first end side and a second coupling element is provided on a second end side, said coupling elements being designed so as to complement each other.
5 . Cage segment according to claim 4 , wherein the first and the second coupling elements are designed such that they may be connected together in a form-fitting manner.
6 . Cage segment according to claim 4 , wherein the first and the second coupling elements are designed as complementary plug-in connecting elements.
7 . Cage segment according to claim 4 , wherein the first coupling element has a coupling web projecting in the circumferential direction and the second coupling element has a coupling recess for receiving the coupling web of a first coupling element of a further cage segment.
8 . Cage segment according to claim 7 , wherein the coupling web is designed as an extension of the circumferential webs.
9 . Cage segment according to claim 7 , wherein the coupling web is provided with a latching element projecting therefrom and a latching recess is provided in the region of the coupling recess, said latching recess being able to be engaged behind by the latching element of a first coupling element of a further cage segment with respect to the circumferential direction, so as to provide a form-fitting connection.
10 . Cage segment according to claim 9 , wherein the latching element is designed as a pin which can be received inside a latching opening in the coupling recess of the second coupling element.
11 . Cage segment according to claim 7 , wherein the coupling web is provided with a latching recess and a latching element Is provided in the region of the coupling recess so as to engage into the latching recess of a first coupling element of a further cage segment with respect to the circumferential direction, so as to provide a form-fitting connection.
12 . Cage segment according to claim 1 , wherein the cage segment is formed with a thermoplastic synthetic material, in particular with a glass, carbon or aramide reinforcement.
13 . Cage segment according to claim 12 , wherein the thermoplastic synthetic material comprises polyether ether ketone with a fiber content of between 10 to 50% by weight.
14 . Cage for a roller bearing comprising several cage segments according to claim 1 , wherein the cage segments are connected together at their end sides with the aid of the coupling units so that they form a closed ring.
15 . Roller bearing comprising: a cage according to claim 14 with an outer race, wherein the connecting webs of the cage are situated at a distance from a track of the outer race in a radial direction of the roller bearing.
16 . Roller bearing according to claim 15 , wherein the inner radius of the track of the outer race and the geometrical outer radius of the connecting webs are coordinated in such a way that swelling or thermally induced increases in diameter of the outer cage can be absorbed.