JPH0569419U - Shell type roller bearing - Google Patents
Shell type roller bearingInfo
- Publication number
- JPH0569419U JPH0569419U JP875292U JP875292U JPH0569419U JP H0569419 U JPH0569419 U JP H0569419U JP 875292 U JP875292 U JP 875292U JP 875292 U JP875292 U JP 875292U JP H0569419 U JPH0569419 U JP H0569419U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- outer ring
- holding
- roller bearing
- shell
- 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
- 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
- F16C33/588—Races of sheet metal
-
- 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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
- F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without 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
- 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
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
-
- 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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/06—Placing rolling bodies in cages or bearings
- F16C43/08—Placing rolling bodies in cages or bearings by deforming the cages or the races
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
(57)【要約】
【目的】 本考案は、ころや外輪を傷付けずに、ころを
確実に組込むことができる安価なシェル形軸受を提供す
る。
【構成】 外輪１に設けた一方の保持突起５の先端に、
面取りを施して傾斜面７を形成する。ころ８の両端面１
０、１１を先細の形状とし、保持突起５をころ８の端面
１０と面当り状態で変形させて、ころ８を外輪１に組込
む。
(57) [Abstract] [Purpose] The present invention provides an inexpensive shell-type bearing capable of reliably incorporating a roller without damaging the roller or outer ring. [Structure] At the tip of one holding protrusion 5 provided on the outer ring 1,
Chamfering is performed to form the inclined surface 7. Both ends 1 of roller 8
The rollers 0 and 11 are tapered, and the holding projection 5 is deformed in a state of contacting the end surface 10 of the roller 8 to assemble the roller 8 into the outer ring 1.
Description
【０００１】[0001]
この考案は、総ころタイプのシェル形ころ軸受に関し、特に、外輪ところ間の 保持構造の改良に関するものである。 The present invention relates to a full-roller type shell roller bearing, and more particularly to an improvement in a holding structure between outer rings.
【０００２】[0002]
従来、この種のシェルころ軸受の外輪は、図４に示すように、円筒形に形成し た薄肉鋼板２１の両端に、径方向内方に屈曲するフランジ２２、２３を設け、そ の各フランジ２２、２３の先端に、軸方向内方へ屈曲する保持突起２４、２５を 設けて形成され、その保持突起２４、２５にころ２６の両端面２７、２８を係合 させることにより、ころ２６を外輪２０の内部に保持している。 Conventionally, the outer ring of this type of shell roller bearing has, as shown in FIG. 4, flanges 22 and 23 that bend inward in the radial direction provided at both ends of a thin steel plate 21 formed in a cylindrical shape. The holding projections 24 and 25 that are bent inward in the axial direction are provided at the tips of the rollers 22 and 23, and both end surfaces 27 and 28 of the rollers 26 are engaged with the holding projections 24 and 25, so that the roller 26 is secured. It is held inside the outer ring 20.
【０００３】 ところで、上記外輪２０の内部にころ２６を組込んでいく場合、大部分のころ は、外輪２０の軸線に対してころを傾けることにより簡単に組込むことができる が、最後の数本のころは、図４に鎖線で示すように一方の端面２７と保持突起２ ４が接触している状態から、ころ２６を外輪２０の内側へ無理に圧入して組込む 必要がある。このため、圧入の際に、ころの端面と外輪の間にこじれが生じ、そ れらの表面が傷付いたり、保持突起にクラックが生じる恐れがあった。By the way, when the rollers 26 are installed inside the outer ring 20, most of the rollers can be easily installed by inclining the rollers with respect to the axis of the outer ring 20, but the last few rollers. As shown by the chain line in FIG. 4, it is necessary to forcibly insert the roller 26 into the outer ring 20 from the state where the one end face 27 and the holding projection 24 are in contact with each other. For this reason, during press fitting, there is a risk that twisting may occur between the end surface of the roller and the outer ring, the surface of these may be damaged, or the holding protrusion may be cracked.
【０００４】 このような問題に対処するため、従来実開昭６３−９９０２６号公報には、図 ４に示すごとく外輪２６の保持突起２５にころ挿入溝２９を設け、その挿入溝２ ９からころ２０を組込むようにした軸受が提案されている。In order to deal with such a problem, in Japanese Utility Model Laid-Open No. 63-99026, a roller insertion groove 29 is provided in a holding projection 25 of an outer ring 26 as shown in FIG. A bearing in which 20 is incorporated has been proposed.
【０００５】 しかし、上記のように保持突起２５の一部をころ挿入溝２９により切欠いた構 造では、組込まれたころに何らかの力が加わった場合、その挿入溝２９からころ が脱落する恐れがある。However, in the structure in which a part of the holding projection 25 is cut out by the roller insertion groove 29 as described above, if some force is applied to the assembled roller, the roller may fall off from the insertion groove 29. is there.
【０００６】 また、ころ挿入溝２９を形成する切欠き工程を、外輪２０の製造工程中に追加 する必要があるため、工程数が増え、製造コストが増大する問題もある。Further, since the notch process for forming the roller insertion groove 29 needs to be added during the manufacturing process of the outer ring 20, there is a problem that the number of processes increases and the manufacturing cost increases.
【０００７】 そこで、この考案は、簡単構造により、ころと外輪を傷付けることなくころを 確実に組込むことができ、しかもころの脱落がないシェル形ころ軸受を提供する ことを目的としている。[0007] Therefore, an object of the present invention is to provide a shell type roller bearing which has a simple structure and can be reliably assembled with the roller without damaging the roller and the outer ring, and in which the roller does not fall off.
【０００８】[0008]
上記の課題を解決するため、この考案は、ころの両端面を先細の形状で形成し 、外輪の両端に形成した保持突起のうち、一方の保持突起における先端部に、径 方向内方に向かって拡径する面取りを施した構造としたのである。 In order to solve the above-mentioned problems, the present invention forms the both end surfaces of the roller in a tapered shape, and of the holding projections formed at both ends of the outer ring, one of the holding projections is directed radially inward. The structure is chamfered to increase the diameter.
【０００９】[0009]
上記の構造においては、一方の保持突起の面取りの表面に、ころの先細の端面 を接触し、ころ端面で保持突起を押し拡げながら、ころを外輪内部に組込む。 In the structure described above, the tapered end surface of the roller is brought into contact with the chamfered surface of one of the holding projections, and the holding projection is expanded by the roller end surface while the roller is incorporated into the outer ring.
【００１０】 この構造では、ころの端面と保持突起が面取りを介して摺接しながら保持突起 を変形させるため、こじれが生じず、ころや外輪の表面に傷などが発生しない。In this structure, since the holding projection is deformed while the end surface of the roller and the holding projection are in sliding contact with each other through the chamfer, the twisting does not occur and the surface of the roller or the outer ring is not scratched.
【００１１】 また、保持突起に切欠きが無いため、ころの脱落が無い。Further, since the holding projection has no notch, the roller does not fall off.
【００１２】[0012]
図１及び図２は、この考案に係る実施例を示している。 外輪１は、薄肉鋼板２を円筒形に形成し、その鋼板２の両端に径方向内方へ屈 曲するフランジ３、４を設け、その各フランジ３、４の先端に、軸方向内方へ屈 曲する保持突起５、６を設けて形成される。 1 and 2 show an embodiment according to the present invention. The outer ring 1 is formed by forming a thin steel plate 2 into a cylindrical shape, and providing flanges 3 and 4 that bend inward in the radial direction at both ends of the steel plate 2, and the ends of the flanges 3 and 4 extend inward in the axial direction. It is formed by providing bending holding protrusions 5 and 6.
【００１３】 このようなシェル形外輪１の成形は、プレス加工や打抜き加工、切断加工等の 複数の塑性加工工程により行なわれる。The shell-shaped outer ring 1 is formed by a plurality of plastic working processes such as press working, punching working, and cutting working.
【００１４】 この外輪１の成形が終了すると、一方の保持突起５の先端周縁に、面取り加工 を行ない、図２に示すように径方向内方に向かって拡径する傾斜面７を形成する 。When the molding of the outer ring 1 is completed, a chamfering process is performed on the tip peripheral edge of one of the holding projections 5 to form an inclined surface 7 that expands radially inward as shown in FIG.
【００１５】 一方、他方の保持突起６の先端には、面取りを施さず、プレス成形のままとし 、比較的尖った形状に形成する。これは、両保持突起５、６間の軸方向距離Ｌを 確保し、両保持突起５、６によるころ８の保持力を低下させないためであり、こ れにより左右の保持突起５、６の先端は、非対称の形状で形成される。On the other hand, the tip of the other holding projection 6 is not chamfered and is left as it is in press molding to form a relatively sharp shape. This is to secure the axial distance L between the two holding projections 5 and 6 and to prevent the holding force of the two holding projections 5 and 6 from holding the roller 8 from decreasing. Are formed in an asymmetrical shape.
【００１６】 また、外輪１に収納されるころ８は、中央に円筒形の転動面９を設け、両端面 １０、１１を、転動面９表面から連続してテーパ状に縮径する先細形状で形成さ れる。Further, the roller 8 accommodated in the outer ring 1 is provided with a cylindrical rolling surface 9 at the center, and both end surfaces 10 and 11 are tapered so as to continuously taper from the surface of the rolling surface 9. Formed in shape.
【００１７】 なお、外輪１の両保持突起５、６間の軸方向距離Ｌは、上記ころ８の全長より も小さく、ころ８の転動面９の長さよりも大きく形成し、ころ８の両端面１０、 １１が、保持突起５、６に係合するように設定する。The axial distance L between the holding protrusions 5 and 6 of the outer ring 1 is smaller than the entire length of the roller 8 and larger than the length of the rolling surface 9 of the roller 8. The surfaces 10, 11 are set to engage the retaining projections 5, 6.
【００１８】 実施例の軸受は上記のような構造であり、外輪１に最後の数本のころ８を組込 む場合は、図１に示すように、ころ８の一方の端面１１を、面取りを施さない保 持突起６の内側に嵌め込んだ状態で、ころ８の他方の端面１０を、保持突起５先 端の面取りによる傾斜面７に接触させる。この状態から、ころ８を径方向外方に 押し付け、ころの端面１０で保持突起５を押し拡げて、外輪１の内部にころ８を 組み入れる。The bearing of the embodiment has the structure as described above, and when the last few rollers 8 are incorporated in the outer ring 1, as shown in FIG. 1, one end surface 11 of the roller 8 is chamfered. The other end surface 10 of the roller 8 is brought into contact with the inclined surface 7 formed by chamfering the front end of the holding projection 5 in a state of being fitted inside the holding projection 6 which is not provided. From this state, the roller 8 is pressed outward in the radial direction, the holding projection 5 is expanded by the end surface 10 of the roller, and the roller 8 is incorporated into the outer ring 1.
【００１９】 この組込み作業では、ころ８の端面１０と保持突起５の先端が面当り状態で接 触しながら保持突起５を変形させるため、保持突起５やころ８にこじれ力が作用 せず、ころ８と外輪１に傷やクラックが発生しない。In this assembling work, since the holding projection 5 is deformed while the end surface 10 of the roller 8 and the tip of the holding projection 5 are in contact with each other in a surface contact state, the holding projection 5 and the roller 8 are not twisted, The roller 8 and the outer ring 1 are not scratched or cracked.
【００２０】 また、上記構造では、一方の保持突起５に面取り加工を施すため、塑性加工だ けで成形される従来の外輪に比べて両保持突起５、６間の軸方向距離Ｌを一定の 寸法公差に入れることが容易になる。このため、軸方向距離Ｌを高い寸法精度で 設定でき、ころ８の安定した保持力を得ることができる。In addition, in the above structure, since one holding protrusion 5 is chamfered, the axial distance L between the holding protrusions 5 and 6 is set to be constant as compared with the conventional outer ring formed by only plastic working. It is easy to put in the dimensional tolerance. Therefore, the axial distance L can be set with high dimensional accuracy, and a stable holding force of the roller 8 can be obtained.
【００２１】 図３は他の実施例を示しており、一方の保持突起５に対する面取りを、円弧面 １２で行なったものである。また、上記面取りは、上述した傾斜面７や円弧面１ ２を、複数組合わせて形成したり、傾斜面と円弧面を組合わせて形成することも できる。FIG. 3 shows another embodiment, in which one of the holding projections 5 is chamfered on the arcuate surface 12. Further, the chamfering can be formed by combining a plurality of the inclined surfaces 7 and the arcuate surfaces 12 described above or by combining the inclined surfaces and the arcuate surfaces.
【００２２】[0022]
以上のように、この考案は、外輪の保持突起をころの端面と面当りを介して変 形させ、変形にこじれを生じさせないので、ころや外輪に傷やクラックを生じさ せずにころを確実に組込むことができる。 As described above, according to the present invention, the outer ring holding projection is deformed through the end face of the roller and the surface contact, and the deformation is not twisted.Therefore, the roller and the outer ring are protected from scratches and cracks. It can be installed reliably.
【００２３】 また、保持突起にころ挿入溝などの切欠きを設けないため、外輪からのころの 脱落が皆無であり、さらに、切欠き加工が不要になるため、軸受が安価に製作で きる利点がある。Further, since the holding projection does not have a notch such as a roller insertion groove, the roller does not fall off from the outer ring, and further, since the notch processing is unnecessary, the bearing can be manufactured at a low cost. There is.
【図１】実施例を示す断面図FIG. 1 is a sectional view showing an embodiment.
【図２】同上の要部を拡大して示す断面図FIG. 2 is a cross-sectional view showing an enlarged main part of the same.
【図３】他の実施例を示す断面図FIG. 3 is a cross-sectional view showing another embodiment.
【図４】従来例を示す断面図FIG. 4 is a sectional view showing a conventional example.
１ 外輪 ２ 薄肉鋼板 ３、４ フランジ ５、６ 保持突起 ７ 傾斜面 ８ ころ ９ 転動面 １０、１１ 端面 １２ 円弧面 1 Outer ring 2 Thin steel plate 3, 4 Flange 5, 6 Holding projection 7 Sloping surface 8 Roller 9 Rolling surface 10, 11 End surface 12 Arc surface
Claims (1)
ろとから成り、上記外輪を、円筒形に形成した鋼板の両
端に、径方向内方に屈曲するフランジを設け、その各フ
ランジの先端に軸方向の内方へ屈曲する保持突起を設け
て形成し、外輪の内部に収納したころの両端面を上記両
保持突起で保持したシェル形ころ軸受において、上記こ
ろの両端面を先細の形状で形成し、上記外輪の一方の保
持突起における先端部に、径方向内方に向かって拡径す
る面取りを施したことを特徴とするシェル形ころ軸受。1. A flange, which comprises an outer ring and a large number of rollers housed in the outer ring, is formed on both ends of a steel plate formed into a cylindrical shape, and is bent inward in the radial direction. In a shell-type roller bearing in which a retaining projection that bends inward in the axial direction is provided at the tip and both end surfaces of the roller housed inside the outer ring are retained by both retaining projections, both end surfaces of the roller are tapered. A shell-shaped roller bearing, which is formed in a shape and is chamfered so as to expand inward in a radial direction at a tip portion of one of the holding protrusions of the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992008752U JP2562728Y2 (en) | 1992-02-26 | 1992-02-26 | Shell type roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992008752U JP2562728Y2 (en) | 1992-02-26 | 1992-02-26 | Shell type roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0569419U true JPH0569419U (en) | 1993-09-21 |
| JP2562728Y2 JP2562728Y2 (en) | 1998-02-16 |
Family
ID=11701663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992008752U Expired - Fee Related JP2562728Y2 (en) | 1992-02-26 | 1992-02-26 | Shell type roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562728Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010061709A1 (en) * | 2008-11-25 | 2010-06-03 | Ntn株式会社 | Cage-equipped rollers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6399026U (en) * | 1986-12-19 | 1988-06-27 | ||
| JPH01168016U (en) * | 1988-05-19 | 1989-11-27 |
-
1992
- 1992-02-26 JP JP1992008752U patent/JP2562728Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6399026U (en) * | 1986-12-19 | 1988-06-27 | ||
| JPH01168016U (en) * | 1988-05-19 | 1989-11-27 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010061709A1 (en) * | 2008-11-25 | 2010-06-03 | Ntn株式会社 | Cage-equipped rollers |
| JP2010127306A (en) * | 2008-11-25 | 2010-06-10 | Ntn Corp | Roller with retainer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2562728Y2 (en) | 1998-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |