Патент USA US2404084код для вставки
July 16, 1946. J, R, Nom-0N _ 2,404,084 BEARING Filed June 8, 1945 Egg! 32 z2 27 /22 INVENTOR: John Richard Nor?on ` BYMVM' ATTORNEY. Patented July 16, 1946 2,404,084 UNITED STATES PATENT OFFICE 2,404,084 BEARING John Richard Norton, West Hartford, Conn. Application June 8_, 1945, Serial No. _5.9.8,24’7 5 Claims. 1 . (Cl. 308-474) 2 This invention relates to bearings and more end ‘portions I4 and I5 of reduced thickness and -particularly to an improved type of bearing de there are provided outwardly facing internal signed to receive both ‘radial and thrust loads. shoulders I6 and Il at the inner ends of the `re An Iaim vof the invention is to provide an anti duced >portions I4 and I5, respectively. A series friction device in the' form of an improved roller 5 of >needles or rollers I2 are disposed around the and thrust bearing combined into a single self internal surface of shell I0 in engagement with ycontained compact unit which may be `manufac raceway ||. ’Positioned against shoulder I6 is a tured from a minimium of parts, `which may be roller retaining ring I8 secured in place by an interchangeable with standard stock sizes of inwardly eX-tending iiange or lip I9 which is bushings, and which may be easily assembled in il formed by bending the outer end of reduced fpor the -mechanism in which it is to be used. tion I4 of shell I0 Vinwardly into engagement with A further object of the invention is to provide retaining ring I8. Retaining `ring I8 has >an in an improved combination radial and thrust bear wardly directed groove 20 for lmaintaining the ing having rollers for taking the radial load and outer adjacent ends of the rollers I 2 against radi bearing balls for taking the thrust load and in 1b al displacement when a shaft is not in place which a minimum of parts is employed to main. with-in the unit. tain the rollers and .bearing balls in position. At the other end of shell >III is a ball race mem-V Other objects will be in part obvious and in ber 22 resting against shoulder I’l'r, fixed in posi par-t pointed out more in detail hereinafter. tion by an inwardly extending ñange or lip 23 at The invention accordingly consists in the `fea the end of reduced portion I5 and having an in tures of construction, combination oi elements wardly facing ba‘ll ‘race 24. ,Member 22 projects and arrangement of parts which will be exempli beyond the _edge of lip 23 to provide a shoulder ñed in the construction hereafter set -forth and 25 which provides a _position and square seat the scope of the application _of which will be in when ‘bearing is pressed into positon in the mech dicateclin the appended claims. 25 anism. The bearing is further provided with a In the drawing: disk member 3|! slidably mounted in shell I!) and Figure l is a longitudinal sectional View of one with its periphery forming `a Cylindrical _Surface embodiment of my improved bearing shown with ä! vin 'bearing relation to raceway II so that the a shaft in place Within >the unit ; disk may rotate with respect to the shell. Disk Fig. 2 is a transverse sectional View `‘taken along Sil .has a ball race groove 32 .complementary to line 2-2 of Fig. l.; and ball race 24 and aseries _of ‘balls 21 are positioned Fig. 3 is a longitudinal sectional View of va some therebetween. A circumferential rabbet 33 on what Vdifferent embodiment .of my invention disk 30 is adapted to receive the inner adjacent shown positioned on the end of a shaft. ends of _rollers l2 and .to prevent radial displace Referring to the illustrative drawing, it will .be ment of the rollers ,when the bearing is not posi seen that my improved unit comprises generally ` tioned ton a shaft. . a shell with an internal cylindrical surface form The Vembo.o`lím,ei1t of my _invention in Figs. l and ing a raceway for ,a series of rollers; a flange 2 is shawl-1 as mounted .on ashaft 4.0 which has a which, in the embodiments shownin the ,present illustrative drawing, is in the lform of a retaining 40 reduced portion 4| »and _a shoulder 4,2. Ball Y.race 22 and disk 30 are provided with central bores ring Vprovided with a groove for accommodating _43 and Vlill, respectively, through which portion 4| the outer adjacent ends off the rollers; a bearing of the sha-ft 40 extends. .Shoulder ,'42 bears race hxed to and carried 'by the other end of against disk 430 and it will thus be seen not only the shell, this race in the embodiment ,shown in Fig. 1 comprising a separate piece 22 fixed in po 45 that shaft -40 rotates freely inengagement vwith rollers I2 which reduce to ¿a Vminimum -the fric sition and in the embodiment shown in Fig. 3 tion of 'the ¿radial load, lbut also that the 'friction comprising an integral end wall |22 of thevshell of the :thrust load in the direction of ~the arrow Iii); bearing balls associated with' the race; and shown in Fig. i1 is reduced to -a minimum since a complementary race engaging the bearing 'balls and having a cylindrical peripheral surface in 50 disk 30 >rotates vagainst ‘balls r2?. Another embodiment >of >my «invention -is `illus bearing relation t0 the internal surface of the trated in Fig. ‘3 and is substantially similar to shell so 'that the race may rotate with respect that shown 'in Fig. ‘1 except that the shell is -a to the shell and shift 'longitudinally thereof, and so arranged as to support the adjacent inner ends cup-shaped member v| |10 and the bearing ball race of the rollers against inward radial movement 55 |22 vis an integral Yend AWall of the Vs‘he‘ll I |-0 which, when a shaft is not in place within the unit. as 0shown in Eig. 3, -iits over a shaft 140,»the end |42 of which bears against disk 30. This type More particularly, the embodiment of my in vention shown in Figs. 1 and 2 comprises a cylin of bearing is designed to receive the lateral force drical sleeve or shell I0 with its internal surface and longitudinal thrust of the end of a shaft, to forming a raceway I |. The shell I0 has opposite 60 retain the lubricating medium employed, and to 2,404,084 3 4 prevent the entry of dust and dirt into the bearing. 2. A roller and thrust bearing unit compris It can be seen from the foregoing description that my improved bearing is of simple construc tion and easy to manufacture. Ithas a minimum of parts andmay be constructed of steel, bronze, and/or other suitable materials in standard stock sizes. ing a shell having an internal cylindrical sur face forming a raceway for roller bearings, a flange at one end of the shell having a groove on its inner radial face, a fixed ball race at the other end of said shell, a complementary race rotat ably and slidably ñtting within said shell, balls lThe shell or casing supports and houses between said races, said rotatable race having a the various parts and prevents displacement thereof and thus a self-contained unit is provided in which the parts are retained at all times in a groove facing said first-mentioned groove, and a series of rollers engaging said raceway and working arrangement with one another. The disk 30 :acts not only as a ball race for the bearing balls, but also to maintain the rollers inl radial position and, in addition, provides a thrust plate for the shaft involved. By constructing the shell with reduced diameters at the ends, the internal shoulders I6 and I1 are provided and these act `as seats for the retaining ring or ball race if it circumferential rabbet forming with said shell having their opposite ends accommodated by said grooves. 3. A roller and thrust bearing unitcompris ing a shell having an internal cylindrical sur face forming a raceway for roller bearings, an annular retaining ring secured in said shell and having a groove on its inner radial face, a fixed ball race at the other end of said shell, a race is desired to construct these parts as separate 20 rotatably and slidably fitting within said shell, members. In such case, the shoulders control the said races having complementary race grooves, depth of assembly of the ring or ball race and balls between said races and engaging in said prevent the cramping of the rollers and balls grooves, said rotatable race having a circumfer during assembly of the bearing and also during ential rabbet forming with said shell a groove installationrin the mechanisms in which my in facing said first-mentioned groove, and a series vention may be used. By providing a grooved of rollers engaging said race surface and hav flange at the outer end of the shell for accom ing their opposite ends accommodated by said modating the adjacent ends of the rollers, radial grooves. displacement of the rollers is prevented when a k a. A roller and thrust bearing unit compris shaft is not in position within the unit. The 30 ing a shell having an internal cylindrical sur rollers themselves may be of any desirable type, face and having at its opposite ends portions of ball point rollers being shown in Fig. 1 and reduced thickness and outwardly facing shoulders shoulder type rollers being shown in Fig. 3, The at the inner ends of said portions; an annular reduced portions at the ends of the shell make retaining ring located within one end of said it possible to spin the outer ends of the shell over shell, engaging the shoulder thereat and hav the retaining ring or ball race for securing these ing a groove directed towards the other end of members in place. My improved bearing is con the shell; a ball race located in the other end structed of a minimum of parts by having each of said shell and abutting against the shoulder part perform a number of functions, and this also thereat; the ends of said shell being bent in makes possible a very compact and economical 40 wardly over said retaining ring and bearing race bearing. for securing the same in place; a rotatably and As many changes could be made in the above slidably mounted bearing race having its periph construction and many apparently widely dif ery engaging the said internal surface and hav ferent embodiments of this invention could be ing a rabbet facing and aligned with the groove made without departing from the scope thereof, of said retaining ring; bearing balls between it is intended that all matter contained in the said` bearing races; and a series of rollers en above description or shown in the accompanying gaging said cylindrical surface and having their drawing shall be interpreted as illustrative and opposite ends engaging said rabbet and groove. not in a limiting sense. 5. A roller and thrust bearing unit compris It is also to be understood that the language 50 ing a shell having an internal cylindrical sur used in the following claims is intended to cover face and having‘at one end a portion of re all of the generic and specific features of the in duced thickness and an outwardly facing shoulder vention herein described and all statements of at the inner end of said portion, said shell hav the scope of the invention which, as a matter of 55 ing at its other end a ball race integral there language, might be said to fall therebetween. with; an annular retaining ring engaging said I claim as my invention: shoulder and having a groove directed towards l. A roller and thrust bearing unit compris said other end of said shell; the adjacent end of ing a shell having an internal cylindrical surface said shell being bent inwardly over said retain forming a roller raceway, a series of rollers en ing ring to secure the same in place; a rotat gaging said raceway, means at one end of said ' ably and slidably mounted bearing disk having shell providing a groove for accommodating the its periphery in bearing engagement with said adjacent ends of the rollers to prevent them internal surface and having a circumferential from moving radially inwardly, a ball bearing rabbet facing and aligned with the groove of said race ñxed to and carried by the other end of .retaining ring; bearing balls between said bear said shell, a rotatable ball bearing race sliclably fitting in said shell and interposed between said ing disk and said ball race; and a series of roll rollers and said fixed bearing race, and bearing balls between said ñxed race and said rotatable ers engaging said cylindrical surface and having their opposite ends accommodated by said rabbet race, said rotatable race having means for ac and groove. commodating the inner ends of said rollers and 7,0. f preventing the same from moving radially in Wardly. . JOHN RICHARD NORTON.