JP5245577B2 - Rolling bearing device and method of manufacturing rolling bearing device - Google Patents

Description

  The present invention relates to a rolling bearing device including a constant velocity joint that supports an axle. In particular, the present invention relates to a rolling bearing device in which a fitting portion between a constant velocity joint and a rotating member of the rolling bearing device is provided on a surface substantially perpendicular to the axial direction.

  Generally, a wheel support device that supports a wheel of an automobile or the like includes a constant velocity joint that is a driving member that supports an axle, and a rolling bearing device that is fixed to the constant velocity joint and the wheel. In recent years, a rolling bearing device in which a constant velocity joint and a rolling bearing device are integrated has been developed (for example, see Patent Document 1).

  A conventional rolling bearing device in which a constant velocity joint and a rolling bearing device are integrated will be described with reference to FIGS. 5, 6 (a), and 6 (b). As shown in FIG. 5, the rolling bearing device 100 includes a bowl-shaped constant velocity joint 101, a rotating member 102 that rotates together with the constant velocity joint 101, a fixed member 103 that surrounds the rotating member 102, and a rotating member 102. And a rolling element 104 disposed between the fixing member 103 and the fixing member 103. The constant velocity joint 101 and the rotating member 102 are fixed by a fixing member 105 such as a bolt. The fixed member 105 includes a contact portion 105a that contacts the rotating member 102 in the axial direction, a shaft portion 105b that extends from the contact portion 105a toward the vehicle body in the axial direction, and an end portion on the vehicle body side in the axial direction of the shaft portion 105b. And a screw part 105c provided on the head. The constant velocity joint 101 is fixed to the rotating member 102 by the contact portion 105a of the fixing member 105 coming into contact with the rotating member 102 and the screw portion 105c of the fixing member 105 and the constant velocity joint 101 being screwed together. The

The constant velocity joint 101 and the rotating member 102 are provided with gear portions 101a and 102a, respectively. The gear portions 101a and 102a have a plurality of teeth arranged in the rotational circumferential direction (hereinafter simply referred to as “circumferential direction”) in which the constant velocity joint 101 and the rotating member 102 rotate, and are fitted to each other. Here, the gear portion 101 a is provided at a site on the outer side in the axial direction of the constant velocity joint 101, and the gear portion 102 a is provided at a site on the vehicle body side in the axial direction of the rotating member 102. The gear portion 101a and the gear portion 102a face each other in the axial direction.
DE 10 2006 032 159A1

  Here, as shown in FIG. 6A, there is no problem as long as the gear portions 101a and 102a are normally fitted to each other. However, since the gear portions 101a and 102a face each other in the axial direction, as shown in FIG. 6 (b), the teeth 101b and 102b of the gear portions 101a and 102a are in contact with each other by the fixing member 105. The constant velocity joint 101 and the rotating member 102 may be fixed. In a state where the tooth end surfaces 101b and 102b of the gear portions 101a and 102a are in contact with each other, there is a problem that the rotational torque of the constant velocity joint 101 is not efficiently transmitted to the rotating member 102. Further, there is a problem that the constant velocity joint 101 may idle with respect to the rotating member 102.

  Accordingly, the present invention has been made in view of the above circumstances, and the object of the present invention is to assemble the constant velocity joint and the rotating member into the fitting portion after assembling the constant velocity joint and the rotating member which are driving members. It is to provide a rolling bearing device and a manufacturing method of the rolling bearing device that can ensure that the constant velocity joint and the rotating member can be reliably fitted by confirming the combined state.

  (1) One form of this means is “a bearing device, wherein the bearing device includes a rotating member, a driving member, a nut, and a determination member, and the rotating member is fitted to the cylindrical portion and the rotating member side. The driving member is fixed to the rotating member, has a shaft portion and a driving member side fitting portion, the cylindrical portion has a hollow shape into which the shaft portion is inserted, and the rotation The member-side fitting portion is formed at an end of the rotating member on the vehicle body side in the axial direction, and the driving member-side fitting portion is formed at a location facing the rotating member-side fitting portion in the driving member. The shaft portion is inserted into the cylindrical portion, and has a shaft portion outer side end portion and a screw portion, and the shaft portion outer side end portion extends from the end portion on the outer side in the axial direction of the cylindrical portion to the cylinder portion. Projecting to the outside of the part, the threaded part is formed at the outer end of the shaft part, and the nut is Screwed into the threaded portion, the determination member has a threaded portion exterior side location that is an axially exterior location in the threaded portion and a nut exterior location that is an axially exterior location in the nut. When the rotating member side fitting portion and the driving member side fitting portion are normally fitted, the screw portion outer side portion and the nut outer side portion form a predetermined positional relationship in the axial direction, A bearing device in which the screw portion outer side portion and the nut outer side portion do not form the predetermined positional relationship in the axial direction when the rotating member side fitting portion and the driving member side fitting portion are not properly fitted. Including.

  The determination member has a threaded portion outer side portion and a nut outer side portion. The external part on the screw part side and the external part on the nut indicate the fitted state of the rotating member side fitting part and the driving member side fitting part by the relative positional relationship in the axial direction. When the screw portion outside portion and the nut outside portion do not form a predetermined positional relationship in the axial direction, it indicates that the rotating member side fitting portion and the driving member side fitting portion are not normally fitted. .
  For this reason, the determination member corrects the fitting state of the rotating member side fitting portion and the driving member side fitting portion when the rotating member side fitting portion and the driving member side fitting portion are not normally fitted. Providing workers with a chance to do so.
  For this reason, since the rotation member side fitting part and the drive member side fitting part are not normally fitted, the situation where the transmission efficiency of the rotational torque from a drive member to a rotation member falls hardly arises. In addition, a situation in which the driving member is idle with respect to the rotating member is less likely to occur.

  (2) One form of the above-mentioned means is as follows: “The screw part has an end face on the external side in the axial direction of the screw part as the screw part external side place, and the nut has the nut external side place, A bearing device having an end face on the outer side in the axial direction of the nut.

  When the axially external end surface of the screw portion and the axially external end surface of the nut do not form a predetermined positional relationship in the axial direction, the rotating member side fitting portion and the driving member side fitting portion Indicates that it is not properly mated. The axially outer end surface of the screw portion and the axially outer end surface of the nut are present at positions that can be easily confirmed by an operator after the rotating member and the drive member are assembled together.
  Thus, the determination member corrects the fitting state of the rotating member side fitting portion and the driving member side fitting portion when the rotating member side fitting portion and the driving member side fitting portion are not normally fitted. An opportunity to do so is provided to the worker or the like in a form that the worker or the like can easily confirm.

  (3) One form of the above means is that “the threaded portion has a recessed portion, and the recessed portion is formed at a position on the outer peripheral side of the threaded portion, and is recessed toward the radially inner side of the threaded portion. The nut includes a screwing portion and a nut cylindrical portion, the screwing portion is screwed into the screw portion, and the nut cylindrical portion is on an outer side in the axial direction with respect to the screwing portion. A bearing device formed and crimped into the recess.

  The nut cylindrical portion is caulked in the concave portion of the screw portion. For this reason, rotation of the nut with respect to the threaded portion is restricted. For this reason, the nut is difficult to loosen. For this reason, the reliability of a bearing apparatus is improved.

One form of this means is a method of manufacturing a bearing device, and includes a rotating member having a hollow cylindrical portion, a shaft portion inserted into the cylindrical portion, and a shaft portion protruding outward from the cylindrical portion in the axial direction. A drive member fixed to the rotating member and a nut screwed to the screw member, and the concave and convex fitting portions respectively provided on the drive member and the rotating member are fitted to each other. A first step of combining, a second step of fixing the driving member and the rotating member with the screw portion and the nut, and an axial position of the end surface on the outer side in the axial direction of the screw portion and the nut after the second step. And a third step of confirming whether or not the fitting portions of the driving member and the rotating member are fitted according to the relationship with the axial position of the outer end face in the axial direction.

  According to the above method, since the fitting state of the fitting portion of the driving member and the rotating member can be confirmed by the third step, the fitting portion can be normally fitted. Therefore, the rotational torque of the drive member can be efficiently transmitted to the rotary member, and the idle rotation of the drive member with respect to the rotary member can be prevented.

  According to the present invention, after assembling the constant velocity joint and the rotating member, which are drive members, the constant velocity joint and the rotating member are securely connected by confirming the fitting state of the fitting portions of the constant velocity joint and the rotating member. It is possible to provide a rolling bearing device that can be fitted to the shaft and a method of manufacturing the rolling bearing device.

(Structure of rolling bearing device)
The rolling bearing device according to the present invention will be described with reference to FIGS. FIG. 1 is a sectional view showing a rolling bearing device according to the present invention. 2 shows the fixing means in FIG. 1, FIG. 2 (a) is an enlarged view showing a state in which the constant velocity joint and the wheel side raceway member are normally fitted, and FIG. 2 (b) It is the enlarged view which showed the state which the constant velocity joint and the wheel side track member are not fitting normally. FIG. 3 is a plan view of the fixing means as viewed from the outside in the axial direction.

  As shown in FIG. 1, the rolling bearing device 1 includes a constant velocity joint 2, a wheel side race member 3 that rotates together with the constant velocity joint 2, a vehicle body side race member 4 that surrounds the wheel side race member 3, and wheels. A rolling element 5 is provided between the side raceway member 3 and the vehicle body side raceway member 4. The constant velocity joint 2 and the wheel-side track member 3 are fixed to each other by a fixing means 6. Here, the rolling elements 5 rotate around the wheel-side track member 3 and are arranged in two rows in the axial direction. A plurality of rolling elements 5 are arranged in the circumferential direction in one row. These rolling elements 5 are held by a cage 7.

  The constant velocity joint 2 which is a drive member supports the axle attached to the vehicle body of vehicles, such as a motor vehicle. The constant velocity joint 2 includes a bowl-shaped support portion 2a that supports the axle, and a shaft portion 2b that extends from the support portion 2a toward the outside in the axial direction. Then, a screw portion 2c formed with a male screw is provided at an end portion on the outer side in the axial direction of the shaft portion 2b. In addition, the constant velocity joint 2 includes the support portion 2a, the shaft portion 2b, and the screw portion 2c as a single member.

  The wheel-side track member 3 that is a rotating member includes a hollow cylindrical cylindrical portion 3a, a flange portion 3b that extends radially outward from the axially outer side of the cylindrical portion 3a, and the wheel-side track member 3 shaft. And an inlay portion 3c extending from the outer surface in the direction to the outer side in the axial direction. A plurality of insertion holes 3g for inserting bolts (not shown) for fixing the wheel and the rolling bearing device 1 are provided in the flange portion 3b so as to be spaced apart in the circumferential direction. The inlay portion 3c is provided in a substantially cylindrical shape having an inner peripheral surface 3k provided on the outer side in the radial direction from the radial position of the inner peripheral surface 3h of the cylindrical portion 3a. And, in the radial direction, between the end portion on the outer side in the axial direction of the cylindrical portion 3a and the end portion on the vehicle body side in the axial direction of the spigot portion 3c is an annular shape and perpendicular to the axial direction A flat flange surface 3d is provided. Here, the shaft portion 2b of the constant velocity joint 2 is inserted into the cylindrical portion 3a. The screw portion 2c protrudes outward in the axial direction from the flange surface 3d. Further, an outer raceway groove 3e that is in sliding contact with the rolling element 5 is provided on the outer peripheral surface of the cylindrical portion 3a (that is, the outer surface in the radial direction of the cylindrical portion 3a). In addition, the magnitude | size of the internal diameter R1 by the internal peripheral surface 3h of the cylindrical part 3a is larger than the magnitude | size of the outer diameter R2 of the axial part 2b.

  An inner ring 8 is fixed to a portion 3j on the outer side of the cylindrical portion 3a of the wheel side raceway member 3 on the vehicle body side in the axial direction from the outer side raceway groove 3e. The inner ring 8 is provided with a vehicle body side raceway groove 8a provided in parallel with the outer side raceway groove 3e in the axial direction.

  The vehicle body-side track member 4 includes a hollow cylindrical cylindrical portion 4a and a flange portion 4b extending radially outward from the cylindrical portion 4a. An outer side raceway groove 4c and a vehicle body side raceway groove 4d provided in parallel in the axial direction are provided on the inner peripheral surface of the cylindrical portion 4a (that is, the inner surface in the radial direction of the cylindrical portion 4a). A plurality of through-holes 4e for fastening bolts (not shown) for fixing knuckle (not shown) for connecting the vehicle body and the rolling bearing device 1 are provided in the flange portion 4b so as to be spaced apart in the circumferential direction.

  Between the end of the vehicle body side track member 4 in the axial direction on the outer side in the radial direction and the wheel side track member 3, and in the radial direction, the end of the vehicle body side track member 4 in the axial direction on the vehicle body side and the inner ring 8 Are provided with an outer side sealing device 9 and a vehicle body side sealing device 10, respectively.

  A gear portion 3f which is a fitting portion in which a plurality of concave and convex teeth are arranged in the circumferential direction is provided at an end portion in the axial direction which is a portion of the wheel side raceway member 3 on the vehicle body side in the axial direction. And the gear part 2d which is a fitting part fitted with the gear part 3f is provided in the site | part of the axial direction outer side which is a site | part facing the gear part 3f of the support part 2a of the constant velocity joint 2 in an axial direction. It is done. As with the gear portion 3f, the gear portion 2d is provided with a plurality of uneven teeth arranged in the circumferential direction by spline processing. The cross-sectional shapes of the gear portion 2d and the gear portion 3f are the same as the tooth shape shown in FIG.

  The fixing means 6 includes a threaded portion 2c of the constant velocity joint 2 and a nut 11 that is screwed into the threaded portion 2c. The nut 11 has a substantially cylindrical shape, and is formed of a hollow cylindrical threaded portion 11a having an inner peripheral surface formed with an internal thread that is threadedly engaged with the threaded portion 2c, and an axially outer surface of the threaded portion 11a. And a cylindrical cylindrical portion 11b provided on the outer side in the axial direction. In this embodiment, the nut 11 is a general-purpose product distributed in the market. Then, the vehicle body side surface 11c in the axial direction of the threaded portion 11a of the nut 11 comes into contact with the flange surface 3d of the wheel-side track member 3 when threaded with the threaded portion 2c. Thereby, the constant velocity joint 2 and the wheel side track member 3 are fixed to each other.

  Here, in the conventional structure, the fixing member 105 is fixed to the constant velocity joint 101 at substantially the same position as the axial positions of the gear portions 101a and 102a. Therefore, when the fixing member 105 is loosened, the constant velocity joint 101 may be detached from the rolling bearing device 100 because there is no portion that supports the constant velocity joint 101 with respect to the rotating member 102. However, in the constant velocity joint 2 of the present embodiment, since the support portion 2a and the shaft portion 2b inserted into the cylindrical portion 3a are constituted by a single member, even if the nut 11 is loosened, the wheel-side track member 3 The constant velocity joint 2 is supported with respect to the wheel-side track member 3 by the shaft portion 2b coming into contact with the cylindrical portion 3a. Therefore, it is possible to prevent the constant velocity joint 2 from being detached from the rolling bearing device 1.

  Further, in the present embodiment, when the gear portion 2d of the constant velocity joint 2 and the gear portion 3f of the wheel side raceway member 3 are normally fitted, an end face on the outer side in the axial direction of the screw portion 2c (hereinafter simply referred to as “ The axial position of 2e and the axial end position of the cylindrical portion 11b of the nut 11 (hereinafter simply referred to as “end face”) 11d are substantially coincident with each other. (See FIG. 2 (a)). Here, “substantially match” means that the operator can visually recognize that the axial position of the end surface 2e of the screw portion 2c matches the axial position of the end surface 11d of the nut 11. Good. And the difference of the end surface 2e and the end surface 11d of the extent which cannot be recognized visually in an axial direction is contained in "substantially coincidence".

  On the other hand, when the gear portion 2d and the gear portion 3f are not normally fitted, the axial position of the end surface 2e of the screw portion 2c and the axial position of the end surface 11d of the nut 11 do not coincide with each other ( (Refer FIG.2 (b)). That is, the end surface 2e of the screw portion 2c is positioned closer to the vehicle body side in the axial direction than the end surface 11d of the nut 11.

  Therefore, whether or not the gear portion 2d and the gear portion 3f are normally fitted depends on whether or not the axial position of the end surface 2e of the screw portion 2c matches the axial position of the end surface 11d of the nut 11. Can be confirmed. That is, the screw part 2c and the nut 11 constitute a determination member for determining the fitting state of the gear part 2d and the gear part 3f. More specifically, the determination members are the end surface 2e of the screw portion 2c and the end surface 11d of the nut 11. In particular, the end surface 2 e of the screw portion 2 c and the end surface 11 d of the nut 11 are exposed to the outside of the rolling bearing device 1. Therefore, after the operator assembles the wheel-side track member 3 and the constant velocity joint 2, whether or not the axial position of the end surface 2e of the screw portion 2c and the axial position of the end surface 11d of the nut 11 coincide with each other. Can be easily confirmed visually. As a result, since the gear part 2d of the constant velocity joint 2 and the gear part 3f of the wheel side raceway member 3 can be normally fitted, the rotational torque of the constant velocity joint 2 can be efficiently transmitted to the wheel side raceway member 3. In addition, it is possible to prevent idling of the constant velocity joint 2 with respect to the wheel-side track member 3.

  As shown in FIG. 3, a recessed portion 2 f that is recessed inward in the radial direction is provided in a part of the screw portion 2 c in the circumferential direction. Moreover, the cylindrical part 11b opposes the recessed part 2f of the thread part 2c in the circumferential direction. The cylindrical portion 11b of the nut 11 is crimped to the recess 2f (that is, the cylindrical portion 11b is crimped inward in the radial direction). Accordingly, a portion (hereinafter simply referred to as “deformed portion”) 11e (see FIG. 3) deformed by caulking of the cylindrical portion 11b is accommodated and locked in the recess 2f. That is, the nut 11 is locked to the constant velocity joint 2. Therefore, even if the nut 11 tries to move in the circumferential direction with respect to the shaft portion 2b, it is possible to prevent the nut 11 with respect to the shaft portion 2b from moving in the circumferential direction due to contact between the deformed portion 11e and the recess 2f. . That is, the concave portion 2f and the deformed portion 11e serve to prevent the nut 11 from rotating with respect to the shaft portion 2b. Therefore, the nut 11 can be prevented from loosening with respect to the shaft portion 2b, and a highly reliable bearing device can be provided.

  Further, when the axial position of the end surface 2e of the screw portion 2c is different from the axial position of the end surface 11d of the nut 11 (see FIG. 2B), when the caulking is performed on the cylindrical portion 11b of the nut 11, The deformed portion 11e has a different shape compared to the deformed portion 11e when the gear portion 2d and the gear portion 3f are normally fitted. Therefore, the fitting state between the gear portion 2d of the constant velocity joint 2 and the gear portion 3f of the wheel side raceway member 3 can be confirmed. That is, when the axial position of the end surface 2e of the screw portion 2c and the axial position of the end surface 11d of the nut 11 are different, the concave portion 2f and the cylindrical portion 11b do not overlap in the radial direction. 11b and the recessed part 2f of the screw part 2c cannot be caulked normally. Therefore, after confirming the axial height of the end surface 2e of the screw portion 2c and the axial height of the end surface 11d of the nut 11, the caulking between the cylindrical portion 11b of the nut 11 and the concave portion 2f of the screw portion 2c is performed again. The fitting state of the gear part 2d and the gear part 3f can be confirmed. That is, after confirming the axial height of the end surface 2e of the screw portion 2c and the axial height of the end surface 11d of the nut 11, depending on the shape of the deformed portion 11e of the nut 11, the gear portion 2d and the gear portion 3f again. The fitting state can be confirmed. As a result, the fitting state of the gear portion 2d and the gear portion 3f can be confirmed more reliably, and the constant velocity joint 2 and the wheel-side track member 3 in which the gear portion 2d and the gear portion 3f are not properly fitted. The assembly can be removed. Therefore, the rotational torque of the constant velocity joint 2 can be efficiently transmitted to the wheel side track member 3, and the idling of the constant velocity joint 2 with respect to the wheel side track member 3 can be prevented.

(Method for manufacturing rolling bearing device)
Next, a method for manufacturing the rolling bearing device 1, particularly a method for fixing the constant velocity joint 2 and the wheel side raceway member 3, will be described with reference to FIGS. 1 to 4. FIG. 4 is a flowchart showing a part of the method for manufacturing the rolling bearing device of the present invention.

  First, as a first step, the constant velocity joint 2 is attached to the wheel side raceway member 3 (step S1 in FIG. 4). That is, the shaft portion 2b of the constant velocity joint 2 is inserted into the cylindrical portion 3a of the wheel side raceway member 3, and the gear portion 2d of the constant velocity joint 2 and the gear portion 3f of the wheel side raceway member 3 are fitted to each other. .

  Next, as a second step, the constant velocity joint 2 and the wheel side raceway member 3 are fixed by the fixing means 6. That is, the nut 11 is screwed into the threaded portion 2c protruding outward in the axial direction from the flange surface 3d of the wheel side raceway member 3 (step S2 in FIG. 4). Here, the nut 11 is screwed until the surface 11c on the vehicle body side in the axial direction of the screwing portion 11a of the nut 11 comes into contact with the flange surface 3d (see FIG. 1).

  Next, as a third step, a fitting state between the gear portion 2d of the constant velocity joint 2 and the gear portion 3f of the wheel side raceway member 3 is confirmed. That is, it is visually confirmed whether or not the axial position of the end face 2e of the screw portion 2c matches the axial position of the end face 11d of the nut 11 (step S3 in FIG. 4). When the axial position of the end surface 2e of the screw portion 2c and the axial position of the end surface 11d of the nut 11 are in the relationship shown in FIG. 2A, the gear portion 2d of the constant velocity joint 2 and the wheel-side track member 3 It is determined that the gear portion 3f is normally fitted. When the axial position of the end surface 2e of the screw portion 2c and the axial position of the end surface 11d of the nut 11 are in the relationship shown in FIG. 2B, the gear portion 2d and the gear portion 3f are normally fitted. Judge that it does not match. When the gear part 2d and the gear part 3f are not normally fitted, the nut 11 is removed from the screw part 2c, the process returns to step S1, and the constant velocity joint 2 is attached to the wheel-side track member 3 again.

  By this third step, it can be confirmed whether or not the fitting state of the gear portion 2d and the gear portion 3f is normal. Therefore, since the assembly of the constant velocity joint 2 and the wheel-side raceway member 3 in which the gear portion 2d and the gear portion 3f are not normally fitted can be removed, the gear portion 2d and the gear portion 3f are normally operated. A fitted rolling bearing device can be provided.

  In the conventional structure, since the constant velocity joint 101 is configured only in a bowl shape, the constant velocity joint 101 is easily detached from the rotation member 102 only by attaching the constant velocity joint 101 to the rotation member 102. It was. For this purpose, the fixing member 105 is fixed to the constant velocity joint 101 in a state where both the constant velocity joint 101 and the rotating member 102 are held. Therefore, it is complicated for an operator to assemble the constant velocity joint 101 and the rotating member 102. However, in this embodiment, since the support portion 2a and the shaft portion 2b of the constant velocity joint 2 are configured as a single member, the shaft portion 2b is inserted into the cylindrical portion 3a of the wheel-side track member 3, The constant velocity joint 2 can be held with respect to the wheel-side track member 3. Then, by providing the threaded portion 2c at the outer end of the shaft portion 2b in the axial direction, the nut 11 is screwed onto the threaded portion 2c in a state where the constant velocity joint 2 is held by the wheel-side track member 3. Can be combined. Therefore, the operator does not have to hold both the constant velocity joint 2 and the wheel side track member 3, so that the constant velocity joint 2 and the wheel side track member 3 can be easily assembled.

  Finally, the cylindrical portion 11b of the nut 11 is crimped by a press machine (not shown) so as to be deformed toward the concave portion 2f of the screw portion 2c (step S4 in FIG. 4). Thereby, the constant velocity joint 2 and the wheel side track member 3 are fixed. In this step, it is possible to confirm again whether or not the gear portion 2d and the gear portion 3f are normally fitted by the shape of the deformed portion 11e formed by caulking the cylindrical portion 11b of the nut 11. it can. That is, when the gear part 2d and the gear part 3f are not normally fitted, the cylindrical part 11b of the nut 11 cannot be normally crimped to the concave part 2f of the screw part 2c. Therefore, even after the third step, since it can be confirmed again whether the gear portion 2d and the gear portion 3f are normally fitted, the gear portion 2d and the gear portion 3f are normally fitted. A rolling bearing device can be provided. As a result, a highly reliable rolling bearing device can be provided.

  In addition, the constant velocity joint 2 and the wheel side race member 3 of the rolling bearing device 1 are fixed to the wheel side race member 3, the inner ring 8, the rolling element 5, the vehicle body side race member 4, the external side seal device 9, and the vehicle body. This is performed after the side seal device 10 is assembled. That is, the rolling bearing device 1 is completed when the constant velocity joint 2 and the wheel side race member 3 are fixed.

According to the embodiment of the rolling bearing device of the present invention, the following effects can be obtained.
(1) According to the rolling shaft device of the present invention, the rolling bearing device 1 determines the fitting state of the gear portion 2d of the constant velocity joint 2 that is a fitting portion and the gear portion 3f of the wheel side race member 3. It is set as the structure provided with the determination member for this. With this configuration, since the determination member can check the fitting state of the gear portion 2d of the constant velocity joint 2 and the gear portion 3f of the wheel side raceway member 3, the gear portion 2d and the gear portion 3f Can be fitted normally. Therefore, the rotational torque of the constant velocity joint 2 can be efficiently transmitted to the wheel side track member 3, and the idling of the constant velocity joint 2 with respect to the wheel side track member 3 can be prevented.

  (2) According to the rolling bearing device of the present invention, the determination members are the end surface 2e of the screw portion 2c and the end surface 11d of the cylindrical portion 11b of the nut 11. Therefore, after the operator assembles the constant velocity joint 2 and the wheel side raceway member 3, the relationship between the axial position of the end face 2e of the screw portion 2c and the axial position of the end face 11d of the nut 11 is visually checked. By confirming with this, the fitting state of the gear part 2d and the gear part 3f can be confirmed easily.

  (3) According to the rolling bearing device of the present invention, the cylindrical portion 11b of the nut 11 facing the circumferential direction of the concave portion 2f of the screw portion 2c is crimped to the concave portion 2f. Therefore, loosening of the nut 11 with respect to the screw part 2c can be prevented. In addition, the fitting state of the gear portion 2d and the gear portion 3f can be confirmed by the shape of the deformed portion 11e that is deformed by caulking the cylindrical portion 11b of the nut 11.

  (4) According to the method for manufacturing a rolling bearing device of the present invention, the method includes the step of confirming the fitted state of the gear portion 2d of the constant velocity joint 2 and the gear portion 3f of the wheel side race member 3. By this step, the assembly of the constant velocity joint 2 and the wheel-side track member 3 in which the gear portion 2d and the gear portion 3f are not properly fitted can be removed. Therefore, the rotational torque of the constant velocity joint 2 can be efficiently transmitted to the wheel side track member 3, and the idling of the constant velocity joint 2 with respect to the wheel side track member 3 can be prevented.

In addition, you may change the said embodiment as follows.
In the rolling bearing device of the present embodiment, the gear portion 2d and the gear portion 3f are normal whether or not the axial height of the end surface 2e of the screw portion 2c and the axial height of the end surface 11d of the nut 11 coincide with each other. However, the present invention is not limited to this. For example, it is good also as a confirmation means whether the position of the axial direction of the recessed part 2f of the screw part 2c and the position of the axial direction of the surface of the external side of the axial direction of the screwing part 11a of the nut 11 correspond.

  In the rolling bearing device of the present embodiment, the fitting portions between the constant velocity joint 2 and the wheel side race member 3 are the gear portion 2d and the gear portion 3f, respectively, but the present invention is not limited to this. For example, a structure may be employed in which a fitting portion between the constant velocity joint 2 and the wheel side raceway member 3 is provided with a protrusion and a recess, and these are fitted.

  In the rolling bearing device according to the present embodiment, the cylindrical cylindrical portion 11b extending from the axially outer surface of the threaded portion 11a of the nut 11 toward the axially outer side is provided. Is not limited to this. For example, a hexagonal cylindrical portion in plan view may be provided on the outer side in the axial direction from the surface on the outer side in the axial direction of the screwing portion 11a.

  -In the rolling bearing device of this embodiment, the fitting state of the gear part 2d and the gear part 3f was confirmed by the shape of the deformation part 11e of the cylindrical part 11b of the nut 11, but the present invention is not limited to this. Absent. For example, the fitting state of the gear portion 2d and the gear portion 3f may be confirmed by a change in the press pressure of a press machine that crimps the cylindrical portion 11b of the nut 11.

  In the rolling bearing device of the present embodiment, one recess portion 2f of the shaft portion 2b and one deformation portion 11e of the cylindrical portion 11b of the nut 11 are provided, but the present invention is not limited to this. For example, a plurality of the recessed portions 2f of the shaft portion 2b and the deformed portions 11e of the cylindrical portion 11b of the nut 11 may be provided apart from each other in the circumferential direction.

  -In the manufacturing method of the rolling bearing apparatus of this embodiment, although it was set as the confirmation means which an operator can confirm visually from the outer side of a rolling bearing apparatus, this invention is not limited to this. For example, the fitting state of the gear portion 2d and the gear portion 3f is confirmed by measuring the difference between the axial height of the end surface 2e of the screw portion 2c and the axial height of the end surface 11d of the nut 11 with an inspection device. May be.

It is sectional drawing which showed the rolling bearing apparatus which concerns on this invention. 1 shows the fixing means in FIG. 1, (a) is an enlarged view showing a state where the constant velocity joint and the wheel side raceway member are normally fitted, and (b) is a constant velocity joint and the wheel side raceway member. It is the enlarged view which showed the state which and are not fitting normally. It is the top view which looked at the fixing means from the outside in the axial direction. It is the flowchart which showed the manufacturing process of the rolling bearing apparatus of this invention, especially a constant velocity joint and a wheel side track member. It is sectional drawing which showed the conventional rolling bearing apparatus. 5 shows a fitting portion between the constant velocity joint and the rotating member in FIG. 5, (a) is a diagram showing a state in which the constant velocity joint and the rotating member are normally fitted, and (b) is a constant velocity. It is the figure which showed the state which the joint and the rotation member are not fitting normally.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Rolling bearing apparatus (bearing apparatus), 2 ... Constant velocity joint, 2b ... Shaft part, 2c ... Screw part (determination member), 2e ... End surface, 2f ... Recessed part, 2d ... Gear part (fitting part), 3 ... Wheel side race member (rotating member), 3a ... cylindrical part, 3f ... gear part (fitting part), 6 ... fixing means, 11 ... nut (determination member), 11a ... screwing part, 11b ... cylindrical part ( nut cylinder) Part ), 11d ... end face, S1 ... manufacturing process (first process), S2 ... manufacturing process (second process), S3 ... manufacturing process (third process).

Claims (4)

  A bearing device,
  The bearing device includes a rotation member, a drive member, a nut, and a determination member,
  The rotating member has a cylindrical portion and a rotating member side fitting portion,
  The driving member is fixed to the rotating member, and has a shaft portion and a driving member side fitting portion,
  The cylindrical portion has a hollow shape into which the shaft portion is inserted,
  The rotating member side fitting portion is formed at an end of the rotating member on the vehicle body side in the axial direction,
  The driving member side fitting portion is formed at a location facing the rotating member side fitting portion in the driving member,
  The shaft portion is inserted into the cylindrical portion, and has a shaft portion outer side end portion and a screw portion,
  The shaft part outer side end protrudes outside the cylindrical part from the axially outer end of the cylindrical part,
  The screw portion is formed on the outer end of the shaft portion,
  The nut is screwed into the threaded portion;
  The determination member has a screw portion external side location that is a location on the external side in the axial direction in the screw portion and a nut external location that is a location on the external side in the axial direction of the nut, When the joint portion and the driving member side fitting portion are normally fitted, the screw portion outer side portion and the nut outer side portion form a predetermined positional relationship in the axial direction, and the rotating member side fitting portion and When the driving member side fitting portion does not fit properly, the screw portion outside portion and the nut outside portion do not form the predetermined positional relationship in the axial direction.
  Bearing device.   The screw part has an end face on the outer side in the axial direction of the screw part as the screw part outer side place,
  The nut has an end surface on the outer side in the axial direction of the nut as the nut outer side portion.
  The bearing device according to claim 1.   The screw portion has a recess.
  The concave portion is formed at a position on the outer peripheral side of the screw portion, and has a shape that is recessed toward the inside in the radial direction of the screw portion,
  The nut has a threaded portion and a nut cylindrical portion,
  The threaded portion is screwed into the threaded portion,
  The nut cylindrical portion is formed on the outer side in the axial direction with respect to the screwing portion, and is crimped to the concave portion.
  The bearing device according to claim 1 or 2. A method for manufacturing a bearing device, comprising:
A rotating member having a hollow cylindrical portion; a shaft portion inserted into the cylindrical portion; and a screw portion provided in a portion of the shaft portion that protrudes outward in the axial direction from the cylindrical portion. A drive member fixed to the screw member, and a nut screwed into the screw portion,
A first step of fitting the concave and convex fitting portions respectively provided on the driving member and the rotating member;
A second step of fixing the driving member and the rotating member with the screw portion and the nut;
According to the relationship between the axial position of the external end face in the axial direction of the threaded portion and the axial position of the external end face in the axial direction of the nut, the fitting portion of the drive member and the rotating member is And a third step of confirming whether or not they are fitted. A method for manufacturing a bearing device.

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