JP2011085207A - Rolling bearing and cage for rolling bearing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rolling bearing and a cage for the rolling bearing, inexpensive, easy to assemble and surely brought in a split state without depending on an operation condition or the like to prevent fretting. <P>SOLUTION: The cage 1 for the rolling bearing is constituted by connecting a plurality of circular arc members 2, 2 including a plurality of pockets Pt for receiving rolling elements in a ring shape. The respective circular arc members 2 are connected to be relatively displaceable in the circumferential direction via a connection par 3 and a connected part 4, which are provided opposite to each other at the ends of the adjoining circular arc members 2, 2 and have portions overlapping with each other in the circumferential direction. A radial separation regulating means 5 is provided for regulating separation of the ends of the adjoining circular arc members 2, 2 in the radial direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a rolling bearing and a rolling bearing retainer used for, for example, an idler gear portion of an automobile transmission.

  A needle roller bearing with a cage is used in an idler gear portion of an automobile transmission. In the idler gear portion, the idler gear, the rotating shaft, and the needle roller with cage interposed therebetween are integrated in the drive state, and so-called synchronous rotation is performed. Therefore, the relative rotation of the needle roller with cage is usually relative. Does not happen. For this reason, fretting wear may occur when each roller is loaded with a load at the same position as the inner diameter surface of the gear and the outer diameter surface of the shaft as the raceway surface and vibrates slightly. “Fretting wear” means that dents are formed on the entire circumference of the raceway surface at a roller pitch. For this reason, attempts have been made to divide the cage into two parts and generate relative rotation in the half of the cage due to the circumferential clearance of the split part to prevent fretting wear.

However, in such a bearing having two cages, there is a problem that the two cage halves must be incorporated separately. The following techniques have been proposed as means for solving this problem.
A pair of cage halves that are split in two are bonded to each other at the end in the circumferential direction with an adhesive whose adhesiveness decreases at high temperatures (Patent Document 1).
A pair of cage halves divided in half are temporarily fixed with a soluble resin member having an affinity for lubricating oil (Patent Document 2).
-Temporarily fix the circumferential direction end of the cage by welding, and destroy the welded part due to stress during operation (Patent Document 3).
-The cage halves are connected in a state shifted in the axial direction, and are pressed in the axial direction when the cage is assembled. As a result, the connecting portion is broken and separated into independent cage elements, and the phases of these cage elements in the axial direction are matched.

Japanese Utility Model Publication No. 5-19652 Japanese Utility Model Publication No. 5-89995 JP-A-7-127645 JP 2009-85001 A

  In these conventional techniques, at least a part of the circumferential direction of the ring-shaped cage is divided by the operating temperature and lubricating oil. Therefore, for example, when the operating temperature is low or when the lubricating oil is not sufficiently supplied, the cage may not be divided. In addition, when the connecting portion or the like is divided by destruction, fragments are generated at the time of destruction. A bearing or the like bites into the broken piece, causing vibrations, damage to the bearing, and a malfunction in the transmission function.

  An object of the present invention is to provide a rolling bearing and a rolling bearing retainer that are inexpensive, easy to assemble, and can be reliably divided to prevent fretting without depending on operating conditions.

  The rolling bearing according to the present invention is a rolling bearing using a cage in which a plurality of arc-shaped members each having a plurality of rolling element storage pockets are connected in a ring shape, wherein the cage includes the arc-shaped members. The connecting portion and the connected portion, which are provided opposite to the end portions of the adjacent arc-shaped members and have overlapping portions in the circumferential direction, are connected so as to be relatively displaceable in the circumferential direction, and these adjacent circles A radial direction separation restricting means for restricting separation of the end portion of the arc-shaped member in the axial direction and restricting separation in the radial direction is provided.

  According to this configuration, the rolling elements are stored in the rolling element storage pockets of the respective arc-shaped members, and the plurality of arc-shaped members are connected in a ring shape, and are incorporated into, for example, an idler gear portion of the transmission. In the drive state, the idler gear, the rotating shaft, and the rolling element with a cage interposed between them rotate together and rotate synchronously. At the time of this synchronous rotation, the connecting portion is relatively displaced in the circumferential direction with respect to the connected portion regardless of the operating condition or the like in a state where the connecting portion at the end of the adjacent arcuate member and the connected portion are connected. In other words, these arc-shaped members are reliably moved in the circumferential direction while maintaining the connected state of adjacent arc-shaped members.

Thus, fretting wear is prevented by relatively displacing the connecting portion in the circumferential direction with respect to the connected portion. This retainer can be easily assembled because it can be handled as a single part formed by connecting a plurality of arc-shaped members in a ring shape during assembly. Further, since it is possible to prevent fretting wear without adding special parts, the number of parts is not increased, and the cage structure can be simplified and the manufacturing cost can be reduced.
Therefore, it is possible to realize a rolling bearing that is inexpensive, easy to assemble, and can be reliably divided to prevent fretting without depending on operating conditions.

  The connecting portion in the cage is provided with a convex portion at the center in the width direction of one end portion of the adjacent arc-shaped member, and the connected portion is the other end of the adjacent arc-shaped member. A concave portion may be provided in the central portion in the width direction of the portion, and the convex portion may be connected to the concave portion via a circumferential clearance. By these convex portions and concave portions, it is possible to easily realize a connecting portion and a connected portion that can maintain a state where they are connected so as to be relatively displaceable in the circumferential direction.

The connecting portion in the cage is provided with a protruding portion that protrudes in a substantially T shape when viewed in the radial direction at one end portion of an adjacent arc-shaped member. A concave portion surrounding the substantially T-shaped protrusion when viewed in the radial direction is provided at the other end of the matching arcuate member, and the protrusion is inserted into the concave portion via a circumferential clearance. May be connected.
The cage may be configured such that the protruding portion protrudes in a substantially L shape instead of a substantially T shape, and the concave shape portion surrounds the substantially L-shaped protruding portion.

  The convex portion of the cage may be formed wider in the width direction toward the protruding distal end side, and the concave portion may be formed wider in the width direction toward the proximal end side. In this case, when the connecting portion is about to be separated from the connected portion, the wide portion on the tip side of the convex portion comes into contact with the narrow portion on the tip side of the concave portion, so that the connecting state between the connecting portion and the connected portion is changed. maintain. According to this structure, the structure of a connection part and a to-be-connected part can be simplified, and reduction of manufacturing cost can be aimed at.

  The radial direction separation restricting means in the cage includes a projecting portion provided so as to project in a circumferential direction at an end portion in the width direction of one end portion of the adjacent arc-shaped member, and the adjacent arc-shaped member. In the width direction end portion of the other end portion, a cutout provided opposite to the overhanging portion and connected to the overhanging portion is provided, thereby restricting separation in the axial direction, and overhanging into the notch The portions may be coupled by caulking to restrict the end portions of adjacent arcuate members from separating in the radial direction. In this case, it is possible to prevent the end portions of the adjacent arc-shaped members from being separated in the radial direction by caulking without adding special parts. Even in a state where the protruding portion is connected to the notch by caulking, the relative displacement of the connecting portion with respect to the connected portion is allowed. Therefore, fretting wear prevention is not hindered by the radial direction separation restricting means.

  The cage may perform the caulking only on either the outer diameter surface or the inner diameter surface of the arcuate member. In this case, the number of caulking processes can be reduced, and the manufacturing cost can be reduced.

The retainer allows the relative displacement in the circumferential direction of the connecting portion with respect to the connected portion by allowing the connecting portion to be connected to the connected portion via a circumferential clearance, and the circumferential clearance. When the plug is clogged, the tip of the overhanging portion may be in non-contact with the bottom of the notch, and the connecting portion and the connected portion may be connected in contact.
When the circumferential clearance is most clogged, the tip of the overhanging part contacts the bottom of the notch, the connecting part and the connected part contact, and the side part of the connecting part (in the case of FIG. 2 There are cases where contact is made at the “16” portion) and contact at the overhanging portion, but contact is preferably made on the longest surface in the axial direction (“16” portion in the case of FIG. 2). By making contact with the longest part, the moment load applied to the cage is small, breakage of the cage is prevented, and the behavior of the cage is stabilized.

  The arc-shaped member in the cage may be formed by bending a plate material. In this case, for example, the arc-shaped member can be manufactured at a lower cost than when the arc-shaped member is processed by cutting at least a part of the ring-shaped member in the circumferential direction.

  The cage may be coupled in a ring shape by combining the arc-shaped members having the same shape. In this case, the unit price of the arc-shaped member can be reduced by mass-producing the arc-shaped member having the same shape. Therefore, it is possible to manufacture a rolling bearing cage in which the arc-shaped members are combined and connected in a ring shape at a low cost.

The rolling bearing cage of the present invention is a rolling bearing cage in which a plurality of arcuate members each having a plurality of rolling element storage pockets are connected in a ring shape. An end of an arc member that is adjacent to the end of the arc-shaped member and is connected to the connected portion so as to be relatively displaceable in the circumferential direction by a connecting portion and a connected portion having overlapping portions in the circumferential direction. A radial direction separation restricting means for restricting separation of the portion in the radial direction is provided.
The transmission structure of the present invention uses a rolling bearing using the rolling bearing cage according to claim 11.

  A rolling bearing cage according to the present invention is a rolling bearing cage in which a plurality of arc-shaped members each having a plurality of rolling element storage pockets are connected in a ring shape. An end of an arc member that is adjacent to the end of the arc-shaped member and is connected to the connected portion so as to be relatively displaceable in the circumferential direction by a connecting portion and a connected portion having overlapping portions in the circumferential direction. Because it is provided with a radial separation regulating means that regulates the separation of the part in the axial direction and the separation in the radial direction, it is inexpensive, easy to assemble, and is sure to be in a divided state without depending on operating conditions etc. It is possible to prevent fretting.

It is a perspective view of the cage for rolling bearings concerning one Embodiment of this invention. It is a front view showing the state which isolate | separated the edge part of the adjacent circular arc member of the rolling bearing retainer. It is a front view showing the state which connected the edge part of the adjacent arc-shaped member of the cage for rolling bearings. It is an enlarged front view of the principal part of the cage for rolling bearings of FIG. It is the VV sectional view taken on the line of FIG. It is a front view showing the edge part of the adjacent circular arc member of the rolling bearing retainer which concerns on other embodiment of this invention. It is a front view showing the edge part of the adjacent arc-shaped member of the cage for rolling bearings concerning further another embodiment of this invention. It is the VIII-VIII sectional view taken on the line of FIG. It is the IX-IX sectional view taken on the line of FIG. It is sectional drawing which shows a part of transmission for motor vehicles. It is sectional drawing of the rolling bearing using the holder | retainer in any one of embodiment. It is sectional drawing of the holder | retainer.

  An embodiment of the present invention will be described with reference to FIGS. The rolling bearing retainer according to this embodiment is used, for example, in an idler gear portion of an automobile transmission. The rolling bearing cage is of a cage type in which a plurality of pockets for storing rolling elements are formed. As shown in FIGS. 1 to 3, this rolling bearing retainer 1 is a so-called split-holding structure in which a plurality (two in this example) of arc-shaped members 2 each having a plurality of pockets Pt are connected in a ring shape. It is a vessel. The pocket Pt of the cage 1 has a cross-sectional shape that prevents the rolling elements from coming off on both sides in the radial direction, and the cage 1 has an outer ring guide type in which the outer diameter surface 1a of the cage 1 is guided to the inner peripheral surface of the outer ring. Yes.

For example, the arc-shaped member 2 having the same shape is used as each arc-shaped member 2 and is formed by bending a metal plate. The pockets Pt of the arc-shaped member 2 are provided at regular intervals in the circumferential direction. In this example, needle rollers are applied as the rolling elements stored in each pocket Pt.
Each arcuate member 2 is provided so as to be opposed to the ends of adjacent arcuate members 2 and 2, and is a connecting part having overlapping portions in the circumferential direction when viewed in the axial direction indicated by arrow A <b> 1 in FIG. 1. 3 and the connected portion 4 are connected so as to be capable of relative displacement in the circumferential direction indicated by the arrow A2 direction in FIGS. Furthermore, a radial separation regulating means 5 is provided for regulating separation of the end portions of the adjacent arc-shaped members 2 and 2 in the radial direction.

A connecting means including the connecting portion 3 and the connected portion 4 will be described.
As shown in FIGS. 2 to 4, the connecting portion 3 is provided with a convex portion 6 at a central portion in the width direction of one end portion of the adjacent arc-shaped members 2 and 2. As shown in FIG. 4, the convex portion 6 mainly includes inclined portions 6a and 6a, proximal end side width surface portions 6b and 6b, distal end side width surface portions 6c and 6c, and a distal end portion 6d. Of these, the inclined portions 6a and 6a, the base end side width surface portions 6b and 6b, and the tip end side width surface portions 6c and 6c are formed in a shape that is symmetrical in the axial direction (symmetric in FIG. 4). The base end side width surface portions 6b and 6b are provided on the base end side of the convex portion 6, and are formed on a flat surface parallel to a plane perpendicular to the axial direction. The width dimension H1 between the base end side width surface parts 6b and 6b among the convex parts 6 is defined to be the narrowest.

  The inclined portion 6a and the distal end side width surface portion 6c are sequentially connected to the distal end of the proximal end side width surface portion 6b. Of these, the inclined portions 6a, 6a are formed wider in the width direction toward the distal end side protruding in the circumferential direction. In other words, the inclined portions 6a and 6a are formed so as to be narrower toward the base end side. The front end side width surface portions 6c, 6c are formed on a flat surface parallel to a plane perpendicular to the axial direction. The width dimension H2 between the front end side width surfaces 6c and 6c is defined to be the same as the maximum width dimension at the front end of the inclined parts 6a and 6a. The tip portion 6d of the convex portion 6 is connected to the tips of the tip side width surface portions 6c, 6c and is formed along the axial direction.

The to-be-connected part 4 is provided with a concave part 7 in the center part in the width direction of the other end part of the adjacent arc-shaped members 2 and 2. The convex portion 6 is connected to the concave portion 7 via a circumferential clearance δ1. The concave portion 7 mainly includes inclined portions 7a and 7a, width surface portions 7b and 7b, and a bottom portion 7c. Of these, the inclined portions 7a and 7a and the width surface portions 7b and 7b are formed in symmetrical shapes in the axial direction. The bottom portion 7c faces the tip portion 6d of the convex portion 6 via a circumferential clearance δ1 in the connected state, and is wider by a predetermined length than the width dimension H1 between the front end side width surface portions 6c, 6c of the convex portion 6. Formed. The width surface portions 7b and 7b are connected to one end and the other end of the bottom portion 7c, respectively, and are formed longer than the protruding length L1 of the front end side width surface portion 6c of the convex portion 6. The inclined portions 7a and 7a are connected to the tips of the width surface portions 7b and 7b. The inclined portions 7a and 7a are formed narrower toward the tip side. The tip of the inclined portion 7 a of the concave portion 7 faces the proximal side width surface portion 6 b of the convex portion 6. Moreover, the width dimension between the front-end | tips of the inclination parts 7a and 7a is formed wider by predetermined length than the width dimension H1 between the base end side width surface parts 6b and 6b of the convex part 6. FIG.
By providing a convex portion 6 at one end of each arcuate member 2 and providing a recess 7 at the other end of the arcuate member 2, each arcuate member 2 to be connected in a ring shape has the same shape. Can be.

  As shown in FIGS. 2, 3, and 5, the radial direction separation restricting means 5 includes an overhanging portion 8 and a notch 9 connected to the overhanging portion 8. The overhanging portion 8 is provided at the end in the width direction of one end of the adjacent arc-shaped members 2 and 2 so as to protrude in a rectangular shape in the circumferential direction. The notch 9 regulates axial separation by being provided at the axial end of the other end of the adjacent arcuate members 2 and 2 so as to face the protruding portion 8. As shown in FIGS. 2 and 5, the overhanging portion 8 is connected to the notch 9 by caulking 10 to restrict the end portions of the adjacent arc-shaped members 2 and 2 from separating in the radial direction.

  For example, in a state where the connecting portion 3 is connected to the connected portion 4, a portion near the boundary in the axial direction of the protruding portion 8 and the notch 9 in the outer diameter surface of the arc-shaped member 2 is plastically deformed. As a result, the protruding portion 8 is caulked in the notch 9, and the end portions of the adjacent arc-shaped members 2 and 2 cannot be separated in the radial direction. Even in a state where the overhanging portion 8 is connected to the notch 9 by the caulking 10, the relative displacement of the connecting portion 3 with respect to the connected portion 4 is allowed. Therefore, the fretting wear prevention is not hindered by the radial direction separation restricting means 5. Instead of caulking the outer diameter surface of the arcuate member 2, the inner diameter surface of the arcuate member 2 may be caulked.

  According to the rolling bearing cage 1 described above, the rolling elements are housed in the pockets Pt of the respective arcuate members 2, and the two arcuate members 2 and 2 are connected in a ring shape so that the idler gear portion of the transmission is connected. Incorporate. In the driving state, the idler gear, the rotating shaft, and the roller with the cage interposed between them rotate integrally. At the time of this synchronous rotation, the connecting part 3 is connected to the connected part 4 with respect to the connected part 4 in a state where the connecting part 3 and the connected part 4 at the ends of the adjacent arc-shaped members 2 and 2 are connected. Relative displacement in the circumferential direction. In other words, the arc-shaped members 2 and 2 are reliably moved in the circumferential direction while maintaining the connected state of the adjacent arc-shaped members 2 and 2. In this state, the radial direction separation restricting means 5 restricts the end portions of the adjacent arc-shaped members 2 and 2 from separating in the radial direction.

  Thus, fretting wear is prevented by relatively displacing the connecting portion 3 in the circumferential direction with respect to the connected portion 4. This rolling bearing retainer 1 can be easily assembled because it can be handled as a single part formed by connecting a plurality of arc-shaped members 2 and 2 in a ring shape during assembly. Further, since it is possible to prevent fretting wear without adding special parts, the number of parts is not increased, and the cage structure can be simplified and the manufacturing cost can be reduced.

  Of the connecting means, the convex portion 6 is formed wider toward the protruding distal end side, and the concave portion 7 is formed wider toward the proximal end side. For this reason, when the connecting part 3 tries to be separated from the connected part 4, the inclined parts 6 a, 6 a on the tip side of the convex part 6 come into contact with the inclined parts 7 a, 7 a on the tip side of the concave part 7. The connected state of the part 3 and the connected part 4 is maintained. According to this structure, the structure of the connection part 3 and the to-be-connected part 4 can be simplified, and reduction of manufacturing cost can be aimed at.

  The radial separation regulating means 5 has an overhang portion 8 and a notch 9, the overhang portion 8 is connected to the notch 9 by caulking 10, and the ends of the adjacent arc-shaped members 2, 2 have a diameter. Restrict separation in the direction. For this reason, it is possible to prevent the end portions of the adjacent arc-shaped members 2 and 2 from being separated in the radial direction by caulking 10 without adding special parts. Even in a state where the overhanging portion 8 is connected to the notch 9 by the caulking 10, the relative displacement of the connecting portion 3 with respect to the connected portion 4 is allowed. Therefore, the fretting wear prevention is not hindered by the radial direction separation restricting means 5.

Since the caulking 10 is performed only on one of the outer diameter surface and the inner diameter surface of the arcuate member 2, the number of caulking processes can be reduced, and the manufacturing cost can be reduced.
When the circumferential clearance δ1 between the connected portion 4 and the connecting portion 3 is most clogged, the connecting portion and the connected portion are in contact with each other, and the case is in contact with the side portion 16 (FIG. 2) of the connecting portion. Although the overhanging portion may come into contact, it is preferable to make contact with the surface that is the longest in the axial direction (in the case of FIG. 2, the reference numeral “16”). By making contact with the longest part, the moment load applied to the cage is small, breakage of the cage is prevented, and the behavior of the cage is stabilized.

  Since the arc-shaped member 2 is formed by bending a plate material, for example, the arc-shaped member 2 is compared with the case where the arc-shaped member is processed by cutting at least a part of the annular member in the circumferential direction. Can be manufactured at low cost. This rolling bearing retainer 1 is connected in a ring shape by combining arc-shaped members 2 and 2 having the same shape. For this reason, the unit price of the arc-shaped member 2 can be reduced by mass-producing the arc-shaped member 2 having the same shape. Therefore, the rolling bearing cage 1 in which the arcuate members 2 and 2 are combined and connected in a ring shape can be manufactured at low cost.

  Hereinafter, other embodiments of the present invention will be described. In the following description, the same reference numerals are given to portions corresponding to the matters described in the preceding forms in each embodiment, and overlapping description may be omitted. When only a part of the configuration is described, the other parts of the configuration are the same as those described in the preceding section. Not only the combination of the parts specifically described in each embodiment, but also the embodiments can be partially combined as long as the combination does not hinder.

In the rolling bearing retainer 1A shown in FIGS. 6 and 8, the connecting portion 3 is a protruding portion that protrudes in a substantially T shape when viewed in the radial direction at one end portion of the adjacent arc-shaped members 2 and 2. 11 is provided. The connected portion 4 is provided with a concave portion 12 surrounding the substantially T-shaped protruding portion 11 when viewed in the radial direction at the other end of the adjacent arc-shaped members 2 and 2. The protruding portion 11 is connected to the concave portion 12 via a circumferential clearance δ1 (circumferential gap). Further, as the radial separation regulating means 5A, the circumferential boundary between the protruding portion 11 and the concave shaped portion 12 of the outer diameter surface of the arc-shaped member 2 in a state where the connecting portion 3 is connected to the connected portion 4. By plastically deforming the vicinity portion by the caulking 10, the end portions of the adjacent arc-shaped members 2 and 2 are restricted from being separated in the radial direction.
Also in this configuration, fretting wear is prevented by relatively displacing the connecting portion 3 in the circumferential direction with respect to the connected portion 4. The cage 1A is easy to assemble because it can be handled as one ring-shaped part during assembly. Further, since fretting wear can be prevented without adding special parts, the number of parts is not increased, the cage structure can be simplified, and the manufacturing cost can be reduced.

  The rolling bearing retainer 1B shown in FIGS. 7 and 9 is configured so that the protruding portion 11 protrudes in a substantially L shape instead of a substantially T shape, and the recessed portion 12 is protruded in the substantially L shape. The part 11 is surrounded. Further, by deforming the vicinity of the boundary in the axial direction between the projecting portion 11 and the recessed shape portion 12 by the caulking 10 in the outer diameter surface of the arc-shaped member 2, the ends of the adjacent arc-shaped members 2 and 2 are deformed. The part is restricted from separating in the radial direction. The configurations of FIGS. 7 and 9 also have the same effects as those of FIGS.

  As shown in FIGS. 10 to 12, the rolling bearing BR <b> 1 using the cage 1, 1 </ b> A, 1 </ b> B of any of the above embodiments is interposed between the outer ring 13, the inner ring 14, and the inner and outer rings 14, 13. The plurality of rolling elements 15 and the retainer 1 (1A, 1B) for holding the rolling elements 15 are provided. The outer ring 13 is made of, for example, an idler gear of a transmission, and the inner ring 14 is made of a rotating shaft thereof. According to this configuration, by using the cages 1, 1A, 1B of the above-described embodiments for the rolling bearing BR1, it is inexpensive, easy to assemble, and is reliably divided into parts without depending on operating conditions and the like to prevent fretting. A rolling bearing that can be realized can be realized.

  The cage and the rolling bearing of the present invention may be used in addition to the automobile transmission. The cage may be formed by connecting three or more arc-shaped members in a ring shape. The arcuate member may be made of a non-metallic material. Non-identical arcuate members may be combined and connected in a ring shape. Each arcuate member may be processed by cutting at least a part of the annular member in the circumferential direction. It is also possible to apply rollers other than needle rollers as the rolling elements. Balls may be applied as other rolling elements.

DESCRIPTION OF SYMBOLS 1, 1A, 1B ... Cage 2 ... Arc-shaped member 3 ... Connection part 4 ... Connected part 5 ... Radial direction separation control means 6 ... Convex part 7 ... Concave part 8 ... Overhang part 9 ... Notch 10 ... Clamping Pt ... Pocket δ: Clearance in the circumferential direction

Claims (12)

In a rolling bearing using a cage formed by connecting a plurality of arc-shaped members having a plurality of rolling element storage pockets in a ring shape,
The cage is configured such that each arcuate member is opposed to an end of an adjacent arcuate member, and is connected to a connected part and a connected part having overlapping portions in the circumferential direction. A rolling bearing, characterized in that it is provided with a radial direction separation restricting means that is connected so as to be displaceable and restricts the end portions of the adjacent arc-shaped members from being separated in the radial direction.   In Claim 1, the said connection part in the said holder | retainer provides a convex part in the center part of the width direction of one edge part in an adjacent circular arc member, and the said to-be-connected part is the said adjacent circular arc shape. A rolling bearing in which a concave portion is provided at a central portion in the width direction of the other end portion of the member, and the convex portion is connected to the concave portion via a circumferential clearance.   In Claim 1, the said connection part in the said holder | retainer provides the protrusion part which protrudes in a substantially T shape seeing in radial direction in one edge part in an adjacent circular arc-shaped member, The said to-be-connected The portion is provided with a concave portion surrounding the substantially T-shaped protrusion when viewed in the radial direction at the other end portion of the adjacent arc-shaped members, and a circumferential clearance is provided in the concave portion. The rolling bearing which connected the said protrusion part via.   4. The cage according to claim 3, wherein the protruding portion protrudes into an approximately L shape instead of an approximately T shape, and the recessed portion surrounds the approximately L shape protruding portion. Rolling bearing.   The rolling bearing according to claim 2, wherein the convex portion of the cage is formed wider in a width direction toward a protruding distal end side, and the concave portion is formed wider in a width direction toward a proximal end side. In any one of Claims 1 thru | or 5,
The radial direction separation regulating means in the cage is
A projecting portion provided to project in the circumferential direction at the end in the width direction of one end of the adjacent arc-shaped member;
A notch connected to the overhanging portion provided at the widthwise end of the other end of the adjacent arcuate member, facing the overhanging portion;
A rolling bearing that regulates separation in the axial direction by having a protruding portion connected to the notch by caulking and restricts end portions of adjacent arc-shaped members from separating in the radial direction.   7. The rolling bearing according to claim 6, wherein the retainer performs the caulking only on one of an outer diameter surface and an inner diameter surface of the arcuate member.   8. The retainer according to claim 6, wherein a connecting portion is connected to the connected portion via a circumferential clearance, thereby allowing relative displacement of the connecting portion in the circumferential direction with respect to the connected portion. A rolling bearing that is connected in contact with the longest portion in the axial direction when the circumferential clearance is clogged.   9. The rolling bearing according to claim 1, wherein the arc-shaped member in the cage is formed by bending a plate material.   The rolling bearing according to any one of claims 1 to 9, wherein the cage is a ring-shaped connection formed by combining the arc-shaped members having the same shape. In a rolling bearing retainer formed by connecting a plurality of arcuate members having a plurality of rolling element storage pockets in a ring shape,
Each arcuate member is connected to an end part of an adjacent arcuate member and connected to each other so as to be relatively displaceable in the circumferential direction by a connecting part and a connected part having overlapping portions in the circumferential direction. And a rolling bearing retainer provided with a radial separation regulating means for regulating separation of the ends of the adjacent arcuate members in the radial direction.   The transmission structure using the rolling bearing using the cage for rolling bearings of Claim 11.

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