JP4877044B2 - Bearing device and method for assembling bearing device - Google Patents

Bearing device and method for assembling bearing device Download PDF

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JP4877044B2
JP4877044B2 JP2007115312A JP2007115312A JP4877044B2 JP 4877044 B2 JP4877044 B2 JP 4877044B2 JP 2007115312 A JP2007115312 A JP 2007115312A JP 2007115312 A JP2007115312 A JP 2007115312A JP 4877044 B2 JP4877044 B2 JP 4877044B2
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fixed plate
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diameter step
peripheral portion
bearing device
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JP2008267585A (en
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朋治 杉万
隆朗 加藤木
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NSK Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Description

本発明は、例えば、トランスミッションにおけるギヤ等の回転支持部に用いられる軸受装置および該軸受装置の組立方法に関する。   The present invention relates to a bearing device used for a rotation support portion such as a gear in a transmission, for example, and an assembling method of the bearing device.

従来のこの種の軸受装置としては、例えば、図５に示すように、内輪１と外輪２との間に複数の転動体３が配設された転がり軸受４と、該転がり軸受４の外輪２の軸方向端面に当接して転がり軸受４をハウジングＨに固定する固定プレート５と、を備えるものがある（例えば、特許文献１参照）。   As a conventional bearing device of this type, for example, as shown in FIG. 5, a rolling bearing 4 in which a plurality of rolling elements 3 are disposed between an inner ring 1 and an outer ring 2, and an outer ring 2 of the rolling bearing 4. And a fixing plate 5 that fixes the rolling bearing 4 to the housing H in contact with the axial end face of the motor (see, for example, Patent Document 1).

また、自動車の小型化と共にトランスミッションの小型化が要請されており、このような要請に応える軸受装置として、図６に示すように、転がり軸受４の外輪２の外周面の軸方向端部に小径段部６を設け、該小径段部６に軸方向の端部内周部にプレス成形等により大径孔部７ａが形成された固定プレート７を嵌合固定したものがある（例えば、特許文献２参照）。   Further, there is a demand for downsizing of a transmission along with downsizing of an automobile. As shown in FIG. 6, as a bearing device that meets such a demand, a small diameter is provided at an axial end of an outer peripheral surface of an outer ring 2 of a rolling bearing 4. A stepped portion 6 is provided, and a fixed plate 7 having a large-diameter hole portion 7a formed by press molding or the like is formed on the inner peripheral portion in the axial direction on the small-diameter stepped portion 6 (for example, Patent Document 2). reference).

この軸受装置は、固定プレート７の軸方向の端部内周部にプレス装置等により大径孔部７ａが形成されている。そして、外輪２の小径段部６に固定プレート７を外挿した後、大径孔部７ａの端面の円周方向の複数箇所をプレス装置等により軸方向に押圧成形することにより、小径段部６に外挿された固定プレート７の内周部に、径方向内側に突出する係止爪８を円周方向の複数箇所に形成して、該係止爪８を小径段部６の外周面に形成した係止溝９に係止させる。   In this bearing device, a large-diameter hole portion 7 a is formed in the inner peripheral portion of the axial end portion of the fixed plate 7 by a press device or the like. Then, after the fixed plate 7 is extrapolated to the small diameter step portion 6 of the outer ring 2, the small diameter step portion is formed by pressing a plurality of locations in the circumferential direction of the end surface of the large diameter hole portion 7a in the axial direction by a press device or the like. A locking claw 8 protruding radially inward is formed at a plurality of locations in the circumferential direction on the inner peripheral portion of the fixed plate 7 extrapolated to the outer peripheral surface of the small-diameter step portion 6. It is made to latch in the latching groove 9 formed in this.

この軸受装置によれば、外輪２の軸方向端面に固定プレート５を当接させる場合（図７）に比べて軸方向の寸法を短くすることができ、トランスミッションの小型化を図ることができる。   According to this bearing device, the axial dimension can be shortened compared to the case where the fixed plate 5 is brought into contact with the axial end surface of the outer ring 2 (FIG. 7), and the transmission can be downsized.

特開２００４−０２８１２３号公報JP 2004-028123 A 独国特許出願公開１０２００４０３１８３０号明細書German Patent Application Publication No. 102004031830

しかし、上記特許文献２では、固定プレート７の軸方向の端部内周部にプレス装置等により大径孔部７ａを形成する工程、および大径後部７ａの端面をプレス装置等により軸方向に押圧成形する工程の２度の塑性加工工程が必要となる。このため、軸受装置の組立作業の効率が低下して生産性に劣るという問題がある。   However, in Patent Document 2, the step of forming the large-diameter hole portion 7a in the inner peripheral portion of the axial end of the fixed plate 7 by a press device or the like, and the end surface of the large-diameter rear portion 7a are pressed in the axial direction by the press device or the like. Two plastic working steps of the forming step are required. For this reason, there exists a problem that the efficiency of the assembly operation of a bearing apparatus falls and it is inferior to productivity.

本発明は、このような不都合を解消するためになされたものであり、その目的は、組立作業の効率を高めて生産性の向上を図ることができる軸受装置および該軸受装置の組立方法を提供することにある。   The present invention has been made to eliminate such inconveniences, and an object of the present invention is to provide a bearing device capable of improving the efficiency of assembling work and improving the productivity, and an assembling method of the bearing device. There is to do.

本発明の上記目的は、下記の構成により達成される。
（１） 内輪と外輪との間に複数の転動体が配設された転がり軸受と、転がり軸受をハウジングに固定すべく、外輪の軸方向の端部外周部に設けられた小径段部に嵌合される固定プレートと、を備える軸受装置であって、
小径段部の外周部に該小径段部の端面に連続して設けられた係止溝と、固定プレートの内周部の円周方向の複数箇所に径方向内側に突出して設けられ、前記係止溝に係止される係止爪と、を備え、
係止爪が、小径段部に固定プレートを嵌合した状態で、該固定プレートの内周部周縁の円周方向の複数箇所を小径段部の端面との間で挟んで軸方向に押圧して、固定プレートの内周部周縁の円周方向の複数箇所における小径段部の端面との接触部位を径方向内側に膨出するように塑性変形させることにより、係止溝に係止されたことを特徴とする軸受装置。
（２） 内輪と外輪との間に複数の転動体が配設された転がり軸受と、該転がり軸受をハウジングに固定すべく、外輪の軸方向の端部外周部に設けられた小径段部に嵌合される固定プレートと、を備える軸受装置の組立方法であって、
固定プレートの内周部の円周方向の複数箇所に径方向内側に突出して設けられた係止爪を、小径段部の外周部に該小径段部の端面に連続して設けられた係止溝に係止させて、転がり軸受と固定プレートとを結合するに際して、
小径段部に固定プレートを嵌合した後、該固定プレートの内周部周縁の円周方向の複数箇所を小径段部の端面との間で挟んで軸方向に押圧して、固定プレートの内周部周縁の円周方向の複数箇所における小径段部の端面との接触部位を径方向内側に膨出するように塑性変形させることにより係止爪を形成して、該係止爪を係止溝に係止させることを特徴とする軸受装置の組立方法。 The above object of the present invention can be achieved by the following constitution.
(1) A rolling bearing in which a plurality of rolling elements are disposed between an inner ring and an outer ring, and a small-diameter step provided on the outer peripheral portion of the outer ring in the axial direction so as to fix the rolling bearing to the housing. A bearing device including a fixed plate,
The engagement groove provided continuously on the end surface of the small-diameter step portion on the outer peripheral portion of the small-diameter step portion, and provided in a plurality of locations in the circumferential direction of the inner peripheral portion of the fixed plate so as to protrude radially inward. A locking claw locked in the locking groove,
With the locking claw fitted to the small diameter stepped portion, the locking claw is pressed in the axial direction by sandwiching a plurality of circumferential positions on the periphery of the inner peripheral portion of the fixed plate with the end surface of the small diameter stepped portion. Then, the contact portion with the end surface of the small-diameter step portion at a plurality of locations in the circumferential direction on the peripheral edge of the inner peripheral portion of the fixed plate is plastically deformed so as to bulge radially inward, thereby being locked in the locking groove. A bearing device characterized by that.
(2) A rolling bearing in which a plurality of rolling elements are disposed between the inner ring and the outer ring, and a small-diameter step portion provided on the outer peripheral portion of the axial end of the outer ring to fix the rolling bearing to the housing. A method for assembling a bearing device comprising: a fixed plate to be fitted;
Locking claws provided to protrude radially inward at a plurality of locations in the circumferential direction of the inner peripheral portion of the fixed plate are provided on the outer peripheral portion of the small diameter step portion so as to be continuous with the end surface of the small diameter step portion. When engaging the rolling bearing and the fixed plate by locking in the groove,
After the fixed plate is fitted to the small diameter step, the inner peripheral portion of the fixed plate is pressed in the axial direction by sandwiching a plurality of circumferential positions around the end surface of the small diameter step, A locking claw is formed by plastically deforming the contact portion with the end surface of the small-diameter stepped portion at a plurality of circumferential positions on the circumferential edge of the circumferential portion so that the locking claw is locked. A method of assembling a bearing device, wherein the bearing device is locked in a groove.

本発明によれば、軸受装置を組み立てる際に、１度の塑性加工工程を経ればよいため、軸受装置の組立作業の効率が高まって、生産性の向上を図ることができる。   According to the present invention, when the bearing device is assembled, it is only necessary to perform one plastic working step. Therefore, the efficiency of the assembly operation of the bearing device is increased, and the productivity can be improved.

以下、本発明に係る軸受装置の一実施形態について、図面を参照して詳細に説明する。
図１は本発明に係る軸受装置の一実施形態を説明するための要部断面図、図２は外輪の小径段部に固定プレートが嵌合固定された状態を示す斜視図、図３は図２の背面側から見た斜視図、図４は転がり軸受の外輪と固定プレートとを結合する工程を説明するための図である。 Hereinafter, an embodiment of a bearing device according to the present invention will be described in detail with reference to the drawings.
1 is a cross-sectional view of a main part for explaining an embodiment of a bearing device according to the present invention, FIG. 2 is a perspective view showing a state in which a fixing plate is fitted and fixed to a small-diameter step portion of the outer ring, and FIG. The perspective view seen from the back side of 2 and FIG. 4 are the figures for demonstrating the process of couple | bonding the outer ring | wheel and fixed plate of a rolling bearing.

本実施形態の軸受装置１０は、図１に示すように、転がり軸受１１と、該転がり軸受１１をハウジング（不図示）に固定すべく、転がり軸受１１の外周部に嵌合される固定プレート１２と、を備える。   As shown in FIG. 1, the bearing device 10 of the present embodiment includes a rolling bearing 11 and a fixing plate 12 that is fitted to the outer peripheral portion of the rolling bearing 11 so as to fix the rolling bearing 11 to a housing (not shown). And comprising.

転がり軸受１１は、内周面に外輪軌道面１３ａを有する外輪１３と、外周面に内輪軌道面１４ａを有する内輪１４と、内輪軌道面１４ａと外輪軌道面１３ａとの間に円周方向に転動可能に配設された複数の転動体１５と、複数の転動体１５を円周方向に略等間隔に保持する保持器１６と、外輪１３の軸方向の両端部内周部にそれぞれ装着されて、軸受空間と外部との間をシールするシール部材１７と、を有する。   The rolling bearing 11 rolls in a circumferential direction between an outer ring 13 having an outer ring raceway surface 13a on an inner peripheral surface, an inner ring 14 having an inner ring raceway surface 14a on an outer peripheral surface, and the inner ring raceway surface 14a and the outer ring raceway surface 13a. A plurality of rolling elements 15 that are movably disposed, a cage 16 that holds the plurality of rolling elements 15 at substantially equal intervals in the circumferential direction, and inner peripheral portions of both ends in the axial direction of the outer ring 13 are respectively mounted. And a seal member 17 that seals between the bearing space and the outside.

また、外輪１３の軸方向の端部外周部には、固定プレート１２が嵌合される小径段部１８が形成されており、該小径段部１８の外周面の軸方向内側寄りには、小径段部１８の端面１８ａに連続する係止溝１９が周方向全周に沿って形成されている。   Further, a small diameter step portion 18 into which the fixing plate 12 is fitted is formed on the outer peripheral portion of the outer ring 13 in the axial direction, and a small diameter is formed on the inner side in the axial direction of the outer peripheral surface of the small diameter step portion 18. A locking groove 19 that is continuous with the end surface 18a of the stepped portion 18 is formed along the entire circumference in the circumferential direction.

一方、固定プレート１２は、図２および図３に示すように、外形が略三角形のフランジ状をなしており、三角形状の３つの頂点側にはボルト（不図示）の挿通穴２０が形成されている。なお、図２および図３では、便宜上、転がり軸受１０の外輪１３のみを図示している。   On the other hand, as shown in FIGS. 2 and 3, the fixing plate 12 has a flange shape having a substantially triangular outer shape, and bolts (not shown) insertion holes 20 are formed on the three apex sides of the triangular shape. ing. 2 and 3, only the outer ring 13 of the rolling bearing 10 is shown for convenience.

また、図１および図３に示すように、固定プレート１２の内周部には、外輪１３の小径段部１８に形成された係止溝１９に係止される係止爪２１が径方向内側に突出して形成されている。この係止爪２１は、本実施形態では、円周方向に略等間隔で３箇所形成されており、また、３箇所の係止爪２１は、固定プレート１２の三角形状の３つの頂点側にそれぞれ配置されている。   As shown in FIGS. 1 and 3, a locking claw 21 that is locked in a locking groove 19 formed in the small-diameter step portion 18 of the outer ring 13 is radially inward on the inner peripheral portion of the fixed plate 12. Is formed to protrude. In the present embodiment, the latching claws 21 are formed at three locations at substantially equal intervals in the circumferential direction, and the three latching claws 21 are provided on the three apexes of the triangular shape of the fixed plate 12. Each is arranged.

次に、図４を参照して、軸受装置１０の組立方法について説明する。
本実施形態では、固定プレート１２を外輪１３の小径段部１８に嵌合した後に、プレス装置等による塑性加工工程を経て固定プレート１２の内周部に係止爪２１を形成して、転がり軸受１１の外輪１３と固定プレート１２とを結合する。 Next, a method for assembling the bearing device 10 will be described with reference to FIG.
In the present embodiment, after the fixed plate 12 is fitted to the small-diameter step portion 18 of the outer ring 13, a locking claw 21 is formed on the inner peripheral portion of the fixed plate 12 through a plastic working process using a press device or the like, thereby rolling the bearing. The outer ring 13 of 11 and the fixed plate 12 are coupled.

すなわち、図４（Ａ）に示すように、外輪１３の小径段部１８に固定プレート１２を嵌合した後、該固定プレート１２の内周部周縁の円周方向の複数箇所を小径段部１８の端面１８ａとの間で挟んでプレス装置等により該端面１８ａ側に軸方向に押圧する。かかる押圧により、図４（Ｂ）に示すように、固定プレート１２の内周部周縁の円周方向の複数箇所における小径段部１８の端面１８ａとの接触部位の肉部を径方向内側に膨出させて係止爪２１を形成し、該係止爪２１を小径段部１８の係止溝１９に係止させる。これにより、転がり軸受１１の外輪１３と固定プレート１２とが結合されて、軸受装置１０が組み立てられる。   That is, as shown in FIG. 4A, after the fixed plate 12 is fitted to the small-diameter step portion 18 of the outer ring 13, a plurality of portions in the circumferential direction on the peripheral edge of the inner peripheral portion of the fixed plate 12 are arranged in the small-diameter step portion 18. And is pressed in the axial direction toward the end surface 18a by a press device or the like. With this pressing, as shown in FIG. 4 (B), the flesh portions of the contact portions with the end surfaces 18a of the small-diameter step portions 18 at a plurality of locations in the circumferential direction on the periphery of the inner peripheral portion of the fixed plate 12 are expanded radially inward. Then, the locking claw 21 is formed, and the locking claw 21 is locked in the locking groove 19 of the small diameter step portion 18. Thereby, the outer ring | wheel 13 and the fixed plate 12 of the rolling bearing 11 are couple | bonded, and the bearing apparatus 10 is assembled.

以上説明したように、本実施形態の軸受装置１０によれば、外輪１３の小径段部１８に固定プレート１２を嵌合した後、該固定プレート１２の内周部周縁を小径段部１８の端面１８ａとの間で挟んでプレス装置等により軸方向に押圧することにより、固定プレート１２の内周部に係止爪１２を形成して、転がり軸受１１の外輪１３と固定プレート１２とを結合しているので、軸受装置１０を組み立てる際に、１度の塑性加工工程を経ればよいことになる。これにより、軸受装置１０の組立作業の効率を高めることができ、生産性の向上を図ることができる。   As described above, according to the bearing device 10 of the present embodiment, after the fixed plate 12 is fitted to the small diameter step portion 18 of the outer ring 13, the peripheral edge of the inner peripheral portion of the fixed plate 12 is the end surface of the small diameter step portion 18. The locking claw 12 is formed on the inner peripheral portion of the fixed plate 12 by sandwiching it between 18a and pressing in the axial direction by a press device or the like, and the outer ring 13 of the rolling bearing 11 and the fixed plate 12 are coupled. Therefore, when the bearing device 10 is assembled, a single plastic working process may be performed. Thereby, the efficiency of the assembly operation of the bearing device 10 can be increased, and the productivity can be improved.

なお、本発明の内輪、外輪、転動体、転がり軸受、固定プレート、係止溝、係止爪、小径段部等の構成は、上記一実施形態に例示したものに限定されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更可能である。   The configurations of the inner ring, outer ring, rolling element, rolling bearing, fixed plate, locking groove, locking claw, small diameter step, etc. of the present invention are not limited to those exemplified in the above embodiment, Modifications can be made as appropriate without departing from the scope of the present invention.

例えば、上記実施形態では、固定プレート１２の内周部に３箇所の係止爪２１を形成した場合を例示したが、これに限定されず、固定プレート１２の内周部に２箇所あるいは４箇所以上の係止爪２１を形成してもよい。
また、上記実施形態では、小径段部１８の外周面の周方向全周に係止溝１９を形成した場合を例示したが、これに限定されず、例えば、小径段部１８の外周面の複数箇所に周方向に延びる係止溝を形成するようにしてもよい。 For example, in the above embodiment, the case where the three locking claws 21 are formed on the inner peripheral portion of the fixed plate 12 is illustrated, but the present invention is not limited to this, and two or four locations are provided on the inner peripheral portion of the fixed plate 12. The above locking claws 21 may be formed.
Moreover, in the said embodiment, although the case where the locking groove 19 was formed in the circumferential direction perimeter of the outer peripheral surface of the small diameter step part 18 was illustrated, it is not limited to this, For example, the some of the outer peripheral surface of the small diameter step part 18 You may make it form the locking groove extended in the circumferential direction in a location.

本発明に係る軸受装置の一実施形態を説明するための要部断面図である。It is principal part sectional drawing for demonstrating one Embodiment of the bearing apparatus which concerns on this invention. 外輪の小径段部の外周部に固定プレートが嵌合固定された状態を示す斜視図である。It is a perspective view which shows the state by which the fixing plate was fitted and fixed to the outer peripheral part of the small diameter step part of an outer ring. 図２の背面側から見た斜視図である。It is the perspective view seen from the back side of FIG. 転がり軸受の外輪と固定プレートとを結合する工程を説明するための図であり、（Ａ）は結合前の状態を示す要部断面図、（Ｂ）は結合後の状態を示す要部断面図である。It is a figure for demonstrating the process of couple | bonding the outer ring | wheel and rolling plate of a rolling bearing, (A) is principal part sectional drawing which shows the state before coupling | bonding, (B) is principal part sectional drawing which shows the state after coupling | bonding. It is. 従来の軸受装置を説明するための要部断面図である。It is principal part sectional drawing for demonstrating the conventional bearing apparatus. 従来の他の軸受装置を説明するための要部断面図である。It is principal part sectional drawing for demonstrating the other conventional bearing apparatus.

符号の説明Explanation of symbols

１０ 軸受装置
１１ 転がり軸受
１２ 固定プレート
１３ 外輪
１４ 内輪
１５ 転動体
１８ 小径段部
１９ 係止溝
２１ 係止爪 DESCRIPTION OF SYMBOLS 10 Bearing apparatus 11 Rolling bearing 12 Fixed plate 13 Outer ring 14 Inner ring 15 Rolling element 18 Small diameter step part 19 Locking groove 21 Locking claw

Claims (2)

内輪と外輪との間に複数の転動体が配設された転がり軸受と、該転がり軸受をハウジングに固定すべく、前記外輪の軸方向の端部外周部に設けられた小径段部に嵌合される固定プレートと、を備える軸受装置であって、
前記小径段部の外周部に該小径段部の端面に連続して設けられた係止溝と、前記固定プレートの内周部の円周方向の複数箇所に径方向内側に突出して設けられ、前記係止溝に係止される係止爪と、を備え、
該係止爪が、前記小径段部に前記固定プレートを嵌合した状態で、該固定プレートの内周部周縁の円周方向の複数箇所を前記小径段部の端面との間で挟んで軸方向に押圧して、前記固定プレートの内周部周縁の円周方向の複数箇所における前記小径段部の端面との接触部位を径方向内側に膨出するように塑性変形させることにより、前記係止溝に係止されたことを特徴とする軸受装置。 A rolling bearing in which a plurality of rolling elements are disposed between an inner ring and an outer ring, and a small-diameter step provided on the outer peripheral portion of the outer ring in the axial direction so as to fix the rolling bearing to the housing. A bearing device comprising: a fixed plate;
A locking groove continuously provided on an end surface of the small-diameter step portion on the outer peripheral portion of the small-diameter step portion, and provided to protrude radially inward at a plurality of locations in the circumferential direction of the inner peripheral portion of the fixed plate; A locking claw locked in the locking groove,
With the locking claw fitting the fixed plate to the small-diameter step portion, a plurality of circumferential positions on the inner peripheral edge of the fixed plate are sandwiched between the end surfaces of the small-diameter step portion. By pressing in the direction and plastically deforming the contact portions with the end surfaces of the small-diameter stepped portion at a plurality of locations in the circumferential direction on the peripheral edge of the inner peripheral portion of the fixed plate so as to bulge radially inward. A bearing device that is locked in a stop groove. 内輪と外輪との間に複数の転動体が配設された転がり軸受と、該転がり軸受をハウジングに固定すべく、前記外輪の軸方向の端部外周部に設けられた小径段部に嵌合される固定プレートと、を備える軸受装置の組立方法であって、
前記固定プレートの内周部の円周方向の複数箇所に径方向内側に突出して設けられた係止爪を、前記小径段部の外周部に該小径段部の端面に連続して設けられた係止溝に係止させて、前記転がり軸受と前記固定プレートとを結合するに際して、
前記小径段部に前記固定プレートを嵌合した後、該固定プレートの内周部周縁の円周方向の複数箇所を前記小径段部の端面との間で挟んで軸方向に押圧して、前記固定プレートの内周部周縁の円周方向の複数箇所における前記小径段部の端面との接触部位を径方向内側に膨出するように塑性変形させることにより前記係止爪を形成して、該係止爪を前記係止溝に係止させることを特徴とする軸受装置の組立方法。 A rolling bearing in which a plurality of rolling elements are disposed between an inner ring and an outer ring, and a small-diameter step provided on the outer peripheral portion of the outer ring in the axial direction so as to fix the rolling bearing to the housing. An assembly method of a bearing device comprising:
Locking claws provided to protrude radially inward at a plurality of locations in the circumferential direction of the inner peripheral portion of the fixed plate are provided continuously on the outer peripheral portion of the small diameter step portion on the end surface of the small diameter step portion. When the rolling bearing and the fixed plate are coupled with each other by locking in the locking groove,
After fitting the fixed plate to the small-diameter stepped portion, pressing in the axial direction sandwiching a plurality of circumferential positions on the periphery of the inner peripheral portion of the fixed plate between the end surfaces of the small-diameter stepped portion, The locking claw is formed by plastically deforming the contact portion with the end face of the small-diameter stepped portion at a plurality of positions in the circumferential direction of the inner peripheral edge of the fixed plate so as to bulge radially inward, A method of assembling a bearing device, wherein a locking claw is locked in the locking groove.
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