JP5146579B2 - Bearing device and method for assembling bearing device - Google Patents

Bearing device and method for assembling bearing device Download PDF

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JP5146579B2
JP5146579B2 JP2011185149A JP2011185149A JP5146579B2 JP 5146579 B2 JP5146579 B2 JP 5146579B2 JP 2011185149 A JP2011185149 A JP 2011185149A JP 2011185149 A JP2011185149 A JP 2011185149A JP 5146579 B2 JP5146579 B2 JP 5146579B2
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outer ring
fixed plate
bearing device
peripheral portion
locking groove
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JP2011257009A (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７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. 7, 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 fixed plate 5 that fixes the rolling bearing 4 to the housing H in contact with the axial end face (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８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 a bearing device that meets such a demand, as shown in FIG. 8, 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 is fitted and fixed to the small diameter stepped portion 6 (see, for example, Patent Document 2).

この軸受装置では、外輪２の小径段部６に固定プレート７を外挿した後、固定プレート７の内周部周縁の円周方向の複数箇所を軸方向に押圧成形する。これにより、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、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, after fixing the fixed plate 7 to the small-diameter step portion 6 of the outer ring 2, a plurality of circumferential positions on the periphery of the inner peripheral portion of the fixed plate 7 are pressed in the axial direction. As a result, locking claws 8 projecting radially inward are formed at a plurality of locations in the circumferential direction on the inner peripheral portion of the fixed plate 7 that is extrapolated to the small diameter step portion 6, and the locking claws 8 are formed at the small diameter step portion. 6 is locked in a locking groove 9 formed on the outer peripheral surface of the 6.

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を外挿した後に内周部の周縁の円周方向の複数箇所を軸方向にプレスして、該固定プレート７の内周部に外輪２の係止溝９に係止する係止爪８を形成するため、固定プレート７の内周部に係止爪８が適切に形成されたか否かの確認が難しい。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, after fixing the fixed plate 7, a plurality of circumferential positions on the peripheral edge of the inner peripheral portion are pressed in the axial direction, and the outer ring 2 is locked to the inner peripheral portion of the fixed plate 7. Since the locking claw 8 to be locked in the groove 9 is formed, it is difficult to confirm whether or not the locking claw 8 is properly formed on the inner peripheral portion of the fixed plate 7. 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、該転がり軸受をハウジングに固定すべく、転がり軸受の外輪の外周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、
外輪の外周部に形成された係止溝と、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た係止爪と、を備え、
前記固定プレートの軸方向幅は、前記係止溝の軸方向幅より長く、
外輪の外周部に固定プレートの内周部を嵌合することにより、係止爪が、外輪の軸方向の端部から係止溝までの外周面を乗り越えて係止溝に係止され、
嵌合した前記係止爪と前記係止溝との間には、軸方向且つ径方向に隙間が形成されることを特徴とする軸受装置。
（２） 外輪の軸方向の端部外周部に固定プレートが嵌合される小径段部を設け、該小径段部の外周面に係止溝を形成したことを特徴とする（１）に記載の軸受装置。
（３） 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、転がり軸受の外輪の外周部に嵌合される固定プレートと、を備え、前記外輪の外周部に形成された係止溝に、該係止溝の軸方向幅よりも軸方向幅の長い前記固定プレートを嵌合す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周縁の円周方向の複数箇所を軸方向に押圧成形して径方向内側に突出する係止爪を形成しておき、
外輪の外周部に固定プレートの内周部を嵌合することにより、係止爪を、外輪の軸方向の端部から該外輪の外周部に形成された係止溝までの外周面を乗り越えさせて該係止溝に係止させ、
嵌合した前記係止爪と前記係止溝との間には、軸方向且つ径方向に隙間が形成され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 fixing plate fitted to an outer peripheral portion of the outer ring of the rolling bearing in order to fix the rolling bearing to the housing. A bearing device comprising:
A locking groove formed on the outer peripheral portion of the outer ring, and a locking claw provided to protrude radially inward at a plurality of locations in the circumferential direction of the inner peripheral portion of the fixed plate,
The axial width of the fixed plate is longer than the axial width of the locking groove,
By fitting the inner peripheral part of the fixing plate to the outer peripheral part of the outer ring, the locking claw gets over the outer peripheral surface from the axial end of the outer ring to the locking groove, and is locked to the locking groove.
A bearing device is characterized in that a gap is formed in the axial direction and in the radial direction between the fitted locking claw and the locking groove.
(2) The outer diameter of the outer ring in the axial direction is provided with a small-diameter step portion to which the fixing plate is fitted, and a locking groove is formed on the outer peripheral surface of the small-diameter step portion. Bearing device.
(3) a rolling bearing in which a plurality of rolling elements are disposed between the inner ring and the outer ring, and a fixing plate fitted to the outer peripheral portion of the outer ring of the rolling bearing in order to fix the rolling bearing to the housing. provided, the engaging groove formed on the outer periphery of the outer ring, a method of assembling the bearing device that match fitting long the fixed plate of the axial width than the axial width of the engaging groove,
A plurality of circumferential circumferential positions of the periphery of the inner peripheral portion of the fixed plate are formed by pressing in the axial direction to form locking claws that protrude radially inward,
By fitting the inner peripheral part of the fixing plate to the outer peripheral part of the outer ring, the locking claw is moved over the outer peripheral surface from the axial end of the outer ring to the locking groove formed in the outer peripheral part of the outer ring. To lock in the locking groove,
An assembly method of a bearing device, wherein a gap is formed in the axial direction and in the radial direction between the fitted locking claw and the locking groove.

本発明によれば、軸受装置を組み立てる際に、固定プレートの内周部に係止爪が適切に形成されたか否かの確認が不要となるため、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 assembling the bearing device, since it is not necessary to check whether or not the locking claw is properly formed on the inner peripheral portion of the fixed plate, the efficiency of the assembly operation of the bearing device is increased. Productivity can be improved.

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. 固定プレートの内周部に係止爪を形成する工程を説明するための図であり、（Ａ）は係止爪の形成前の固定プレートの状態を示す要部断面図、（Ｂ）は係止爪の形成後の固定プレートの状態を示す要部断面図である。It is a figure for demonstrating the process of forming a latching claw in the inner peripheral part of a fixed plate, (A) is principal part sectional drawing which shows the state of the fixed plate before formation of a latching claw, (B) is related. It is principal part sectional drawing which shows the state of the fixing plate after formation of a pawl. 外輪の小径段部に固定プレートを嵌合する工程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 process of fitting a fixing plate to the small diameter step part of an outer ring. 固定プレートの係止爪が外輪の係止溝に係止された状態を示す要部断面図である。It is principal part sectional drawing which shows the state by which the latching claw of the fixing plate was latched by the latching groove of the outer ring | wheel. 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.

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、図３は図２の背面側から見た斜視図、図４は固定プレートの内周部に係止爪を形成する工程を説明するための要部断面図、図５は外輪の小径段部に固定プレートを嵌合する工程を説明するための要部断面図、図６は固定プレートの係止爪が外輪の係止溝に係止された状態を示す要部断面図である。   Hereinafter, an embodiment of a bearing device according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of an essential part for explaining an embodiment of a bearing device according to the present invention, and FIG. 2 is a perspective view showing a state in which a fixing plate is fitted and fixed to the outer peripheral portion of a small-diameter step portion of the outer ring. 3 is a perspective view seen from the back side of FIG. 2, FIG. 4 is a cross-sectional view of a main part for explaining a process of forming a locking claw on the inner peripheral portion of the fixing plate, and FIG. 5 is fixed to a small diameter step portion of the outer ring. FIG. 6 is a fragmentary cross-sectional view showing a state in which the locking claw of the fixed plate is locked in the locking groove of the outer ring.

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 an inner ring raceway surface 14a and an 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、係止溝１９が周方向全周に沿って形成されている。   A small-diameter step portion 18 to which the fixing plate 12 is fitted is formed on the outer peripheral portion of the outer ring 13 in the axial direction. A stop groove 19 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〜図６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に嵌合する前に、予め固定プレート１２の内周部に係止爪２１を形成する。 Next, an assembly method of the bearing device 10 will be described with reference to FIGS.
In this embodiment, the locking claws 21 are formed in advance on the inner peripheral portion of the fixing plate 12 before the fixing plate 12 is fitted to the small diameter step portion 18 of the outer ring 13.

すなわち、図４に示すように、固定プレート１２の内周部周縁の円周方向に等間隔の３箇所をプレス装置等により軸方向に押圧成形して、前記周縁部分の肉を固定プレート１２の内周面から径方向内側に膨出させ、これにより、係止爪２１を形成する。係止爪２１の先端位置は、固定プレート１２の内周部の軸方向の略中央部に配置されている。   That is, as shown in FIG. 4, three circumferentially equidistant portions of the inner peripheral edge of the fixed plate 12 are pressed in the axial direction by a press device or the like, and the meat of the peripheral portion is formed on the fixed plate 12. The locking claw 21 is formed by bulging radially inward from the inner peripheral surface. The distal end position of the locking claw 21 is disposed at the substantially central portion in the axial direction of the inner peripheral portion of the fixed plate 12.

また、固定プレート１２の前記押圧位置の反対側の端部内周縁は、押圧前の内周面と略同径とされ、該端部内周縁から係止爪２１の先端までの間は径方向内側に滑らかに膨出する凹曲面２２で接続されている。   Further, the inner peripheral edge of the fixing plate 12 on the opposite side of the pressing position has substantially the same diameter as the inner peripheral surface before pressing, and the distance from the inner peripheral edge to the tip of the locking claw 21 is radially inward. They are connected by a concave curved surface 22 that bulges smoothly.

そして、図５に示すように、固定プレート１２の内周部を凹曲面２２側から外輪１３の小径段部１８に嵌合することにより、係止爪２１が、外輪１３の小径段部１８側の端面から係止溝１９までの外周面を乗り越えて該係止溝１９に係止され（図６参照）、これによ
り、軸受装置１０が組み立てられる。 Then, as shown in FIG. 5, the engaging claw 21 is fitted to the small diameter step portion 18 side of the outer ring 13 by fitting the inner peripheral portion of the fixed plate 12 from the concave curved surface 22 side to the small diameter step portion 18 of the outer ring 13. The bearing device 10 is assembled by climbing over the outer peripheral surface from the end surface of the shaft to the locking groove 19 and being locked to the locking groove 19 (see FIG. 6).

以上説明したように、本実施形態の軸受装置１０によれば、固定プレート１２を外輪１３の小径段部１８に嵌合したときに、該固定プレート１２の内周部に予め形成した係止爪２１を小径段部１８の係止溝１９に係止させるようにしているため、軸受装置１０を組み立てる際に、固定プレート１２の内周部に係止爪２１が適切に形成されたか否かの確認が不要となる。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, when the fixing plate 12 is fitted to the small-diameter step portion 18 of the outer ring 13, the locking claw formed in advance on the inner peripheral portion of the fixing plate 12. 21 is locked to the locking groove 19 of the small-diameter step portion 18, so that when the bearing device 10 is assembled, whether or not the locking claw 21 is appropriately formed on the inner peripheral portion of the fixed plate 12. Confirmation is not required. 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の外周面の周方向に全周に係止溝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 there are four or more engaging hooks on the inner peripheral portion of the fixed plate 12. The pawl 21 may be formed.
Moreover, in the said embodiment, although the case where the locking groove | channel 19 was formed in the perimeter of the outer peripheral surface of the small diameter step part 18 was illustrated, it is not limited to this, For example, of the outer peripheral surface of the small diameter step part 18 Locking grooves extending in the circumferential direction may be formed at a plurality of locations.

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 (3)

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、前記転がり軸受の前記外輪の外周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、
前記外輪の外周部に形成された係止溝と、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た係止爪と、を備え、
前記固定プレートの軸方向幅は、前記係止溝の軸方向幅より長く、
前記外輪の外周部に前記固定プレートの内周部を嵌合することにより、前記係止爪が、前記外輪の軸方向の端部から前記係止溝までの外周面を乗り越えて前記係止溝に係止され、
嵌合した前記係止爪と前記係止溝との間には、軸方向且つ径方向に隙間が形成されることを特徴とする軸受装置。 A rolling bearing provided with a plurality of rolling elements between an inner ring and an outer ring; and a fixing plate fitted to an outer peripheral portion of the outer ring of the rolling bearing to fix the rolling bearing to a housing. A bearing device,
A locking groove formed in the outer peripheral portion of the outer ring, and a locking claw provided to protrude radially inward at a plurality of locations in the circumferential direction of the inner peripheral portion of the fixed plate,
The axial width of the fixed plate is longer than the axial width of the locking groove,
By fitting the inner peripheral portion of the fixed plate to the outer peripheral portion of the outer ring, the locking claw gets over the outer peripheral surface from the axial end of the outer ring to the locking groove. Locked to
A bearing device is characterized in that a gap is formed in the axial direction and in the radial direction between the fitted locking claw and the locking groove. 前記外輪の軸方向の端部外周部に前記固定プレートが嵌合される小径段部を設け、該小径段部の外周面に前記係止溝を形成したことを特徴とする請求項１に記載の軸受装置。   The small diameter step part by which the said fixed plate is fitted is provided in the outer peripheral part of the axial direction edge part of the said outer ring | wheel, The said locking groove was formed in the outer peripheral surface of this small diameter step part. Bearing device. 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、前記転がり軸受の前記外輪の外周部に嵌合される固定プレートと、を備え、前記外輪の外周部に形成された係止溝に、該係止溝の軸方向幅よりも軸方向幅の長い前記固定プレートを嵌合す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周縁の円周方向の複数箇所を軸方向に押圧成形して径方向内側に突出する係止爪を形成しておき、
前記外輪の外周部に前記固定プレートの内周部を嵌合することにより、前記係止爪を、前記外輪の軸方向の端部から該外輪の外周部に形成された係止溝までの外周面を乗り越えさせて該係止溝に係止させ、
嵌合した前記係止爪と前記係止溝との間には、軸方向且つ径方向に隙間が形成されることを特徴とする軸受装置の組立方法。 A rolling bearing provided with a plurality of rolling elements between an inner ring and an outer ring; and a fixing plate fitted to an outer peripheral portion of the outer ring of the rolling bearing to fix the rolling bearing to a housing. , the engaging groove formed on the outer periphery of the outer ring, a method of assembling the bearing device that match fitting long the fixed plate of the axial width than the axial width of the engaging groove,
A plurality of circumferential circumferential positions of the peripheral edge of the inner peripheral portion of the fixed plate are formed by pressing in the axial direction to form locking claws protruding radially inward,
By fitting the inner peripheral part of the fixed plate to the outer peripheral part of the outer ring, the outer periphery of the locking claw is extended from the axial end of the outer ring to the locking groove formed in the outer peripheral part of the outer ring. Get over the surface and lock in the locking groove,
An assembly method of a bearing device, wherein a gap is formed in the axial direction and in the radial direction between the fitted locking claw and the locking groove.
JP2011185149A 2011-08-26 2011-08-26 Bearing device and method for assembling bearing device Expired - Fee Related JP5146579B2 (en)

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