JPH0718023U - Double Row Outward Angular Contact Ball Bearing - Google Patents
Double Row Outward Angular Contact Ball BearingInfo
- Publication number
- JPH0718023U JPH0718023U JP047476U JP4747693U JPH0718023U JP H0718023 U JPH0718023 U JP H0718023U JP 047476 U JP047476 U JP 047476U JP 4747693 U JP4747693 U JP 4747693U JP H0718023 U JPH0718023 U JP H0718023U
- Authority
- JP
- Japan
- Prior art keywords
- row
- ball
- balls
- load
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
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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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/70—Diameters; Radii
- F16C2240/80—Pitch circle diameters [PCD]
Abstract
(57)【要約】
【目的】 モーメント荷重Ｆが作用しても、モーメント
荷重Ｆの荷重点に近い側の玉列にかかる荷重を低下させ
ることができ、寿命が向上した複列外向きアンギュラ玉
軸受を提供する。
【構成】 第１の玉列を構成する第１の玉３の直径Ｄ1
が、第２の玉列を構成する第２の玉４の直径Ｄ2 よりも
小さく、且つ第１の玉列のピッチ円径ＰＤ1 が、第２の
玉列のピッチ円径ＰＤ2 より大きい構造を備えた。
(57) [Abstract] [Purpose] Even if moment load F acts, the load applied to the ball row on the side close to the load point of moment load F can be reduced, and the double row outward angular ball with improved life Providing bearings. [Constitution] Diameter D 1 of the first balls 3 constituting the first row of balls
Is smaller than the diameter D 2 of the second balls 4 constituting the second ball row, and the pitch circle diameter PD 1 of the first ball row is larger than the pitch circle diameter PD 2 of the second ball row. With structure.
Description
【０００１】[0001]
本考案は、複列外向きアンギュラ玉軸受の寿命向上に関する。 The present invention relates to improving the life of double row outward angular contact ball bearings.
【０００２】[0002]
従来の複列外向きアンギュラ玉軸受５０は、図２に示すように、軸６に周設さ れた状態で、軸６とハウジング５との間に介在しており、内輪１０と外輪２０と の間に、第１の玉列（ピッチ円Ｍ3 ）を構成する第１の玉３０と、第２の玉列を （ピッチ円Ｍ4 ）構成する第２の玉４０とが複数周設された構造を有している。 第１の玉列の作用点Ａ1 及び第２の玉列の作用点Ａ2 は、それぞれ、軸６の軸心 線Ｃ上にある。As shown in FIG. 2, the conventional double-row outward angular ball bearing 50 is disposed between the shaft 6 and the housing 5 while being circumferentially provided around the shaft 6, so that the inner ring 10 and the outer ring 20 are separated from each other. A plurality of first balls 30 forming the first row of balls (pitch circle M 3 ) and second balls 40 forming the second row of balls (pitch circle M 4 ) are provided between the two. It has a different structure. The point A 2 of the first ball row the point A 1 and the second ball row of each lies on the axis line C of the shaft 6.
【０００３】 ここで、本考案でいう作用点とは、玉列に作用する作用線と軸受の軸心線との 交点を示している。 なお、図２は、複列外向きアンギュラ玉軸受５０の第１の玉３及び第２の玉が 一つずつ見える断面を示している。また、作用点Ａ1 と作用点Ａ2 との間の距離 （作用点間距離）をａ2 で示し、組立幅の中心線の延長からモーメント荷重Ｆが かかる位置（荷重点Ｐ）までの距離（以下、『オフセット量』という）をｂで示 す。Here, the action point in the present invention refers to the intersection of the action line acting on the ball row and the shaft center line of the bearing. Note that FIG. 2 shows a cross section in which the first ball 3 and the second ball of the double-row outward angular ball bearing 50 can be seen one by one. Also, the distance between the action points A 1 and A 2 (distance between action points) is indicated by a 2 , and the distance from the extension of the center line of the assembly width to the position where the moment load F is applied (load point P) (Hereinafter referred to as "offset amount") is indicated by b.
【０００４】 この複列外向きアンギュラ玉軸受５０は、第１の玉３０の直径Ｄ3 と第２の玉 ４０の直径Ｄ4 とが等しく（Ｄ3 ＝Ｄ4 ）、且つ第１の玉列のピッチ円Ｍ3 のピ ッチ円径ＰＤ3 と第２の玉列のビッチ円Ｍ4 のピッチ円径ＰＤ4 とが等しい（Ｐ Ｄ3 ＝ＰＤ4 ）構造となっている。 ここで、複列外向きアンギュラ玉軸受５０を使用した場合、第１の玉３０の作 用点Ａ1 には荷重Ｒ1 が、第２の玉４０の作用点Ａ2 には荷重Ｒ2 が、それぞれ 作用する。そして、複列外向きアンギュラ玉軸受５０に、いずれか一方の玉列に 偏ったモーメント荷重Ｆが作用しない場合には、両玉列に作用する荷重の均衡は とれている。[0004] The double row outwardly angular ball bearing 50 is equal to the diameter D 3 of the first ball 30 and the diameter D 4 of the second ball 40 is (D 3 = D 4), and the first ball row The pitch circle diameter PD 3 of the pitch circle M 3 of the above and the pitch circle diameter PD 4 of the bite circle M 4 of the second ball row are equal (P D 3 = PD 4 ). Here, when using a double row outwardly angular ball bearing 50, the load R 1 is created for the point A 1 of the first ball 30, the working point A 2 of the second ball 40 is a load R 2 , Each works. Then, when the moment load F biased to one of the ball rows does not act on the double row outward angular ball bearing 50, the loads acting on the both row are balanced.
【０００５】[0005]
しかしながら、前記従来の複列外向きアンギュラ玉軸受を、例えば、電磁クラ ッチ用等のように、モーメント荷重Ｆが作用する部分に使用した場合、第１の玉 列に係る荷重Ｒ1 と第２の玉列とにかかる荷重Ｒ2 との均衡がくずれ、前記モー メント荷重Ｆの荷重点Ｐに遠い側の玉列に大きな荷重がかかるようになる。従っ て、前記モーメント荷重Ｆの荷重点Ｐに近い側の玉列や、これと係合する軌道輪 は、前記モーメント荷重Ｆの荷重点Ｐに遠い側の玉列に比べ、早期に剥離が発生 する等、寿命が極めて短くなるという問題があった。However, when the conventional double-row outward angular ball bearing is used in a portion where a moment load F acts, such as in an electromagnetic clutch, the load R 1 and the first ball row R 1 The balance with the load R 2 applied to the second ball row is lost, and a large load is applied to the ball row on the side far from the load point P of the moment load F. Therefore, the ball row on the side closer to the load point P of the moment load F and the race ring engaging with the ball row are separated earlier than the ball row on the side far from the load point P of the moment load F. However, there is a problem that the service life becomes extremely short.
【０００６】 本考案は、このような従来の問題点を解決することを課題とするものであり、 モーメント荷重Ｆが作用しても、モーメント荷重Ｆの荷重点Ｐに近い側の玉列に かかる荷重を低下させることができ、寿命が向上した複列外向きアンギュラ玉軸 受を提供することを目的とする。An object of the present invention is to solve such a conventional problem, and even if the moment load F acts, it is applied to a ball row on the side closer to the load point P of the moment load F. It is an object of the present invention to provide a double-row outward angular contact ball bearing which can reduce the load and has a long life.
【０００７】[0007]
この目的を達成するために、本考案は、内輪と外輪との間に、第１の玉列及び 第２の玉列を備え、該玉列に作用する荷重の作用線の互いの交点が、該玉列のピ ッチ円の外側にある複列外向きアンギュラ玉軸受において、前記第１の玉列を構 成する玉の直径が前記第２の玉列を構成する玉の直径より小さく且つ前記第１の 玉列のピッチ円径が前記第２の玉列のピッチ円径より大きいことを特徴とする複 列外向きアンギュラ玉軸受を提供するものである。 In order to achieve this object, the present invention comprises a first row of balls and a second row of balls between an inner ring and an outer ring, and the intersections of the lines of action of the loads acting on the rows of balls, In a double row outward angular contact ball bearing outside the pitch circle of the row of balls, the diameter of the balls forming the first row of balls is smaller than the diameter of the balls forming the second row of balls, and A double row outward angular ball bearing is provided in which the pitch circle diameter of the first ball row is larger than the pitch circle diameter of the second ball row.
【０００８】[0008]
本考案によれば、第１の玉列を構成する玉の直径を、第２の玉列を構成する玉 の直径よりも小さくし、前記第１の玉列のピッチ円径を、前記第２の玉列のピッ チ円径より大きくしたことで、モーメント荷重Ｆの荷重点Ｐに近い玉列にかかる 荷重が低下する。 According to the present invention, the diameter of the balls forming the first ball row is made smaller than the diameter of the balls forming the second ball row, and the pitch circle diameter of the first ball row is set to the second circle. By making it larger than the pitch circle diameter of the row of balls, the load applied to the row of balls near the load point P of the moment load F is reduced.
【０００９】 以下に、この理由を述べる。 モーメント荷重Ｆの荷重点Ｐに近い側の玉列（ここでは、説明の便宜上、第２ の玉列と仮定する）の作用点Ａ2 にかかる荷重Ｒ2 と、前記作用点Ａ2 と第１の 玉列の作用点Ａ1 との間の距離ａとの積は、モーメント荷重Ｆの荷重点Ｐと作用 点Ａ2 との間の距離（オフセット量ｂ＋ａ／２）との積に等しいことが知られて いる。即ち、 Ｒ2 ・ａ＝Ｆ（ａ／２＋ｂ） ………式１ モーメント荷重Ｆの荷重点Ｐに近い側の玉列の早期剥離を抑制するためには、 作用点Ａ2 にかかる荷重Ｒ2 を小さくすることが要求される。The reason for this will be described below. The load R 2 applied to the action point A 2 of the row of balls on the side closer to the load point P of the moment load F (here, for convenience of explanation, it is assumed to be the second row of balls), the action point A 2 and the first point of action A 2 The product of the distance between the action point A 1 of the ball row and the action point A 1 is equal to the product of the distance between the load point P of the moment load F and the action point A 2 (offset amount b + a / 2). Are known. That is, in order to suppress the premature separation of the R 2 · a = F (a / 2 + b) side ball row close to the load point P of ......... formula 1 moment load F is the load R 2 according to the working point A 2 Is required to be small.
【００１０】 ここで、式１を展開すると、 Ｒ2 ＝｛（ａ＋２ｂ）／２ａ｝・Ｆ ………式２ となる。式２から、モーメント荷重Ｆを小さくすることや、モーメント荷重Ｆが 作用する位置（荷重点Ｐ）の変更ができない場合に、作用点Ａ2 にかかる荷重Ｒ 2 の値を小さくするためには、ａを大きくすればよいことが判る。但し、ｂ＞ａ ／２の場合に限る。Here, expanding Expression 1, R2= {(A + 2b) / 2a} · F ... Formula 2 is obtained. From Equation 2, if the moment load F cannot be reduced or the position (load point P) on which the moment load F acts cannot be changed, the action point A2Load R on 2 It can be seen that it is sufficient to increase a in order to reduce the value of. However, it is limited to the case of b> a / 2.
【００１１】 本考案では、第１の玉列（即ち、モーメント荷重Ｆの荷重点Ｐに遠い側の玉列 ）を構成する第１の玉の直径を、第２の玉列を構成する第２の玉の直径より小さ くし、且つ、第１の玉列のピッチ円径を前記第２の玉列のピッチ円径より大きく したため、第１の玉の直径と第２の玉の直径とが等しい場合に比べ、第１の玉の 作用点Ａ1 が、第２の玉の作用点Ａ2 から遠い（離れた）位置となる。従って、 両玉列に作用する荷重の作用線Ｓの互いの交点Ｋが、両玉列のピッチ円Ｍ1 ，Ｍ 2 の外側にある複列外向きアンギュラ玉軸受の組立幅を大きくしなくても、作用 点Ａ1 と作用点Ａ2 との間の距離が、従来より大きく（長く）なる。In the present invention, the diameter of the first ball forming the first ball row (that is, the ball row on the side far from the load point P of the moment load F) is set to the second ball row forming the second ball row. The diameter of the first ball is smaller than the diameter of the first ball and the pitch circle diameter of the first ball row is larger than the pitch circle diameter of the second ball row. Therefore, the diameter of the first ball is equal to the diameter of the second ball. Compared to the case, the action point A of the first ball1But the point of action A of the second ball2It is located far away from. Therefore, the intersection point K of the lines of action S of the loads acting on both ball rows is the pitch circle M of both ball rows.1, M 2 Even if the assembly width of the double row outward angular contact ball bearing on the outside of the1And point of action A2The distance between and becomes larger (longer) than before.
【００１２】 このため、モーメント荷重Ｆの荷重点Ｐに近い玉列の作用点Ａ2 にかかる荷重 Ｒ2 が従来より小さくなる。Therefore, the load R 2 applied to the action point A 2 of the row of balls, which is close to the load point P of the moment load F, becomes smaller than in the conventional case.
【００１３】[0013]
次に、本考案に係る一実施例について、図面を参照して説明する。 図１は、本考案の実施例に係る複列外向きアンギュラ玉軸受を電磁クラッチの 所定位置に組み込んだ状態を示す一部断面構成図である。 図１に示す複列外向きアンギュラ玉軸受１００は、軸６に周設された状態で、 軸６とハウジング５との間に介在しており、内輪１と外輪２との間に、第１の玉 列を構成する第１の玉３０と、第２の玉列を構成する複数の第２の玉４０とが、 複数周設された構造を有している。 Next, an embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is a partial cross-sectional configuration diagram showing a state in which a double-row outward angular ball bearing according to an embodiment of the present invention is incorporated in a predetermined position of an electromagnetic clutch. The double-row outward angular ball bearing 100 shown in FIG. 1 is interposed between the shaft 6 and the housing 5 while being provided around the shaft 6, and is arranged between the inner ring 1 and the outer ring 2 with the first 1 has a structure in which a plurality of first balls 30 forming a row of balls and a plurality of second balls 40 forming a second row of balls are provided around each other.
【００１４】 この複列外向きアンギュラ玉軸受１００は、第１の玉３の直径Ｄ1 が、第２の 玉４の直径Ｄ2 より小さく（Ｄ1 ＜Ｄ2 ）設計されている。 第１の玉３及び第２の玉４は、外輪２に対する転動面が、軸６の外周から同一 の距離となる位置にある。即ち、第１の玉３の中心は、第２の玉４の中心より外 輪２側に位置している。また、第１の玉３の直径Ｄ1 が、第２の玉４の直径Ｄ2 より小さいため、第１の玉３の中心位置は、従来の軸受のそれより組立幅の中心 線Ｎから外側に位置している。The double row outward angular ball bearing 100 is designed such that the diameter D 1 of the first ball 3 is smaller than the diameter D 2 of the second ball 4 (D 1 <D 2 ). The first balls 3 and the second balls 4 are positioned such that the rolling surfaces for the outer ring 2 are at the same distance from the outer circumference of the shaft 6. That is, the center of the first ball 3 is located closer to the outer ring 2 than the center of the second ball 4. Further, since the diameter D 1 of the first ball 3 is smaller than the diameter D 2 of the second ball 4, the center position of the first ball 3 is outside the center line N of the assembly width than that of the conventional bearing. Is located in.
【００１５】 内輪１は、前記のように配列された第１の玉列に対応するため、即ち、第１の 玉３との係合を行うために、第１の玉列と係合する部分の厚みが、第２の玉列と 係合する部分の厚みより厚くなった構造を備えている。従って、第１の玉列のピ ッチ円Ｍ1 のピッチ円径ＰＤ1 は、第２の玉列の、ピッチ円Ｍ2 のピッチ円径Ｐ Ｄ2 より大きく（ＰＤ1 ＞ＰＤ2 ）なった構造を備えている。The inner ring 1 is a portion that engages with the first ball row in order to correspond to the first ball row arranged as described above, that is, to engage with the first ball 3. Is thicker than the thickness of the portion that engages with the second ball row. Thus, the pitch circle diameter PD 1 of pitch circle M 1 of the first ball row is the second ball row, is larger than the pitch circle diameter P D 2 of the pitch circle M 2 (PD 1> PD 2 ) It has a different structure.
【００１６】 第１の玉列の作用点Ａ1 及び第２の玉列の作用点Ａ2 は、軸６の軸心線Ｃ上に あり、作用点Ａ1 には荷重Ｒ1 が、作用点Ａ2 には、荷重Ｒ2 が作用する。 なお、作用点Ａ1 と作用点Ａ2 との間の距離（作用点間距離）をａ1 で示し、 オフセット量をｂで示す。 複列外向きアンギュラ玉軸受１００は、第１の玉３のピッチ円径ＰＤ1 が第２ の玉のピッチ円径ＰＤ2 より大きく、さらに、図２に示す複列外向きアンギュラ 玉軸受５０に比べ、第１の玉３の中心が、組立幅の中心線Ｗから外側の位置に移 動しているため、第１の玉列の作用点Ａ1 の位置が、図２に示す第１の玉３０の 作用点Ａ1 の位置より外側（作用点Ａ2 から離れた位置）に移動されている。The action point A 1 of the first ball row and the action point A 2 of the second ball row are on the axis C of the shaft 6, and the load R 1 is at the action point A 1 A load R 2 acts on A 2 . The distance between the action points A 1 and A 2 (interaction point distance) is indicated by a 1 , and the offset amount is indicated by b. In the double-row outward angular ball bearing 100, the pitch circle diameter PD 1 of the first ball 3 is larger than the pitch circle diameter PD 2 of the second ball, and further, in the double-row outward angular ball bearing 50 shown in FIG. In comparison, since the center of the first ball 3 is moved to the position outside the center line W of the assembling width, the position of the action point A 1 of the first ball row is the position shown in FIG. The ball 30 is moved outside the position of the action point A 1 (position away from the action point A 2 ).
【００１７】 このため、複列外向きアンギュラ玉軸受１００は、第１の玉３と第２の玉４の 作用点間距離ａ1 が、図２に示す従来の複列外向きアンギュラ玉軸受５０の作用 点間距離ａ2 より大きい構造となっている。 従って、本実施例に係る複列外向きアンギュラ玉軸受１００は、従来の複列外 向きアンギュラ玉軸受５０に比べ、モーメント荷重Ｆの荷重点Ｐに近い側の第２ の玉列の作用点Ａ2 にかかる荷重Ｒ2 が小さくなり、第２の玉列にかかる負担を 低下することができる。Therefore, in the double-row outward angular ball bearing 100, the distance a 1 between the action points of the first ball 3 and the second ball 4 in the double-row outward angular ball bearing 50 is the conventional double-row outward angular ball bearing 50 shown in FIG. Has a structure larger than the distance a 2 between the action points. Therefore, the double-row outward angular ball bearing 100 according to the present embodiment is different from the conventional double-row outward angular ball bearing 50 in that the action point A of the second ball row on the side closer to the load point P of the moment load F is obtained. The load R 2 applied to 2 is reduced, and the load applied to the second ball row can be reduced.
【００１８】 なお、本実施例でいう従来の複列外向きアンギュラ玉軸受５０とは、ピッチ円 径ＰＤ3 及びピッチ円径ＰＤ4 が、第２の玉４のピッチ円径ＰＤ2 と等しく、さ らに、複列外向きアンギュラ玉軸受１００と同一の組立幅、同一の軸受内径及び 外径を備えた複列外向きアンギュラ玉軸受のことである。 次に、本実施例に係る複列外向きアンギュラ玉軸受１００と従来の複列外向き アンギュラ玉軸受５０について、寿命試験を行ったところ、従来の複列外向きア ンギュラ玉軸受５０は、モーメント荷重Ｆの荷重点Ｐに近い側の第２の玉列及び これと係合する軌道輪部分に早期剥離が生じたが、本実施例に係る複列外向きア ンギュラ玉軸受１００には、剥離の発生がなかった。The conventional double-row outward angular ball bearing 50 according to the present embodiment has a pitch circle diameter PD 3 and a pitch circle diameter PD 4 which are equal to the pitch circle diameter PD 2 of the second ball 4. Further, it is a double-row outward angular ball bearing having the same assembly width, the same bearing inner diameter and outer diameter as the double-row outward angular ball bearing 100. Next, a life test was performed on the double-row outward angular ball bearing 100 according to the present embodiment and the conventional double-row outward angular ball bearing 50. Premature separation occurred in the second ball row on the side of the load F closer to the load point P and the race ring portion engaging with this, but the double row outward angular ball bearing 100 according to the present embodiment has peeling. Did not occur.
【００１９】 これは、本実施例に係る複列外向きアンギュラ玉軸受は、前記ａ1 を大きくし たことで、モーメント荷重Ｆの荷重点Ｐに近い側の第２の玉列の作用点Ａ2 にか かる荷重Ｒ2 が小さくなり、第２の玉列にかかる負担が低下したためである。 この結果、本考案に係る複列外向きアンギュラ玉軸受は、モーメント荷重Ｆの 荷重点Ｐに近い玉列に早期剥離が発生することが抑制でき、寿命を大幅に向上す ることができる。In the double-row outward angular ball bearing according to the present embodiment, the point a of action of the second ball row on the side close to the load point P of the moment load F is increased by increasing a 1. This is because the load R 2 applied to 2 is reduced and the load on the second ball row is reduced. As a result, in the double-row outward angular ball bearing according to the present invention, it is possible to prevent early separation from occurring in the ball row near the load point P of the moment load F, and it is possible to significantly improve the life.
【００２０】 また、従来、一方の玉列に早期剥離が発生することを防止する目的で使用して いた、耐剥離性を備えた高価な軸受材料を用いることなく、前記一方の玉列に早 期剥離が発生することを防止できるため、複列外向きアンギュラ玉軸受を低コス トで製造することができる。In addition, conventionally, without using an expensive bearing material having peeling resistance, which was used for the purpose of preventing premature peeling from occurring in one of the balls, the one of the balls can be quickly removed. Since it is possible to prevent the occurrence of the initial peeling, it is possible to manufacture the double-row outward angular ball bearing at a low cost.
【００２１】[0021]
以上説明したように、本考案に係る複列外向きアンギュラ玉軸受は、第１の玉 列を構成する玉の直径が、第２の玉列を構成する玉の直径よりも小さく、前記第 １の玉列のピッチ円径が、前記第２の玉列のピッチ円径より大きい構造を備えて いるため、モーメント荷重Ｆの荷重点Ｐに近い側の玉列にかかる荷重を低下する ことができる。この結果、モーメント荷重Ｆの荷重点Ｐに近い側の玉列やこれと 係合する軌道輪部分に、早期剥離が発生することを抑制でき、軸受寿命が向上す ることができるという効果がある。 As described above, in the double-row outward angular ball bearing according to the present invention, the diameter of the balls forming the first ball row is smaller than the diameter of the balls forming the second ball row, and Since the pitch circle diameter of the second row of balls is larger than the pitch circle diameter of the second row of balls, the load applied to the rows of balls on the side closer to the load point P of the moment load F can be reduced. . As a result, it is possible to suppress the occurrence of premature peeling in the row of balls on the side of the moment load F close to the load point P and the portion of the bearing ring that engages with this, and it is possible to improve the life of the bearing. .
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案の一実施例に係る複列外向きアンギュラ
玉軸受の部分断面図である。FIG. 1 is a partial cross-sectional view of a double-row outward angular ball bearing according to an embodiment of the present invention.
【図２】従来の複列外向きアンギュラ玉軸受の部分断面
図である。FIG. 2 is a partial cross-sectional view of a conventional double-row outward angular ball bearing.
１ 内輪 ２ 外輪 ３ 第１の玉 ４ 第２の玉 1 Inner ring 2 Outer ring 3 First ball 4 Second ball
Claims (1)
２の玉列を備え、該玉列に作用する荷重の作用線の互い
の交点が、該玉列のピッチ円の外側にある複列外向きア
ンギュラ玉軸受において、 前記第１の玉列を構成する玉の直径が前記第２の玉列を
構成する玉の直径より小さく且つ前記第１の玉列のピッ
チ円径が前記第２の玉列のピッチ円径より大きいことを
特徴とする複列外向きアンギュラ玉軸受。1. A first row of balls and a second row of balls are provided between an inner ring and an outer ring, and the points of intersection of the lines of action of loads acting on the rows of balls are the pitch circles of the rows of balls. In the outer double row outward angular ball bearing, the diameter of the balls forming the first ball row is smaller than the diameter of the balls forming the second ball row, and the pitch circle diameter of the first ball row. Is larger than the pitch circle diameter of the second ball row, a double row outward angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993047476U JP2595559Y2 (en) | 1993-08-31 | 1993-08-31 | Double-row outward-facing angular contact ball bearing and bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993047476U JP2595559Y2 (en) | 1993-08-31 | 1993-08-31 | Double-row outward-facing angular contact ball bearing and bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0718023U true JPH0718023U (en) | 1995-03-31 |
| JP2595559Y2 JP2595559Y2 (en) | 1999-05-31 |
Family
ID=12776197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993047476U Expired - Fee Related JP2595559Y2 (en) | 1993-08-31 | 1993-08-31 | Double-row outward-facing angular contact ball bearing and bearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2595559Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011153716A (en) * | 2011-05-16 | 2011-08-11 | Jtekt Corp | Rolling bearing device |
| WO2019021555A1 (en) * | 2017-07-24 | 2019-01-31 | 株式会社不二越 | Differential for motor vehicle and transmission for motor vehicle |
-
1993
- 1993-08-31 JP JP1993047476U patent/JP2595559Y2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011153716A (en) * | 2011-05-16 | 2011-08-11 | Jtekt Corp | Rolling bearing device |
| WO2019021555A1 (en) * | 2017-07-24 | 2019-01-31 | 株式会社不二越 | Differential for motor vehicle and transmission for motor vehicle |
| JPWO2019021555A1 (en) * | 2017-07-24 | 2020-09-17 | 株式会社不二越 | Automotive differentials and automotive transmissions |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2595559Y2 (en) | 1999-05-31 |
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