US2521638A - Mounting for antifriction bearings - Google Patents

Mounting for antifriction bearings Download PDF

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Publication number
US2521638A
US2521638A US661838A US66183846A US2521638A US 2521638 A US2521638 A US 2521638A US 661838 A US661838 A US 661838A US 66183846 A US66183846 A US 66183846A US 2521638 A US2521638 A US 2521638A
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US
United States
Prior art keywords
bearing
web
tongues
race
shaft
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.)
Expired - Lifetime
Application number
US661838A
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English (en)
Inventor
Lamm Ake Magnus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
Svenska Kullagerfabriken AB
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Filing date
Publication date
Priority claimed from GB10657/45A external-priority patent/GB581879A/en
Application filed by Svenska Kullagerfabriken AB filed Critical Svenska Kullagerfabriken AB
Application granted granted Critical
Publication of US2521638A publication Critical patent/US2521638A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • F16C2314/00—Personal or domestic articles, e.g. household appliances such as washing machines, dryers
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

  • the present invention is for improvements in or relating to mountings for antifriction bearlngs, more particularly mountings of the type in which, in order to prevent noise, the bearings are held in position by resilient metallic members.
  • the invention has for one of its objects to provide a more convenient and eillcient construction of mounting of this type than has heretofore been available.
  • an antifriction mounting of the type described above, and comprising a resilient disc-like web in which the bearing is to be carried with its running axis normal to the surface of the web, which mounting is characterized in that the web is provided with a plurality of laterally extending tongues or the like, which together form a hub for engaging the outside of the bearing frictionally.
  • the web and hearing are received in a housing of such formation as to cause the web to buckle in the direction to urge its tongues against the outside of the bearing.
  • the deformation of the web increases the frictional engagement of the tongues against the outside of the bearing.
  • Figure 1 is an elevation, mainly in central longitudinal section, of the electric motor and fan for a vacuum cleaner
  • Figure 2 is a partial end view, looking in the direction of the arrow 2 in Figure 1, showing the bearing mounting, accordin to the present invention, detached;
  • Figure 3 is a sectional view of the said detached bearing mounting
  • Figure 4 is an end view, looking in the direction of the arrow 4 in Figure 1, showing the washer detached;
  • Figure 5 is a detail sectional view, corresponding to a part of Figure 1, but showing a modified construction
  • Figure 6 is a detail sectional view, corresponding to Figure 5, but showing another construction
  • Figure 7 is a detail sectional view, corresponding to Figures Sand 6, but showing a further construction
  • Figure 8 is a fragmentary end view looking in the direction of the arrows 8 in Figure '7;
  • Figure 9 is a fragmentary end view of some of the parts, looking in the direction of the arrows 9 in Figure 7;
  • Figure 10 is a view, corresponding to Figure l,
  • Figure 11 is a sectional view of the bearing mounting of Figure 10, detached;
  • Figure 12 is a detail sectionalview of another 15 form of bearing mounting
  • the rotor of a vacuum cleaner motor is shown at 20, its shaft at 2
  • is reduced at both ends 24 and 25 and has these reduced ends supported in ball bearing, the end 25 projecting through its bearin to receive the fan 26.
  • the bearing receiving the end 24 of the shaft 2
  • the inner race 29 of the bearing adjacent to the fan 26 abuts against a similar, but oppositely directed, shoulder, and the outer race 30 of this hearing is frictionally held by tongues 3
  • the outer rim of the web is clamped to the end of the said housing 23 by screws 33, this rim being bent into angular formation so as to bed also against the inner face of the housing.
  • the formation is such that when the parts are assembled and the clamping screws 33 are home, the web 32 is so buckled as to exert pressure by the tongues 3
  • the axial dimensions chosen for the parts are such that when the web 32 is clamped home, it buckles slightly thus (a) subjecting the assembly to an axial pre-load 3 without the outer race 33 having to slide rela tively to the tongues 3
  • a spider-form loose washer 34 (shown detached in Figure 4) is interposed between the web 32 and the adjacent and of the outer race 30, this washer enabling the buckling of the web to exert positive endwise pressure on the end of the race 30.
  • the washer 34 may be cast or moulded from metal or plastic.”
  • the races are such as to be prevented by the balls from moving substantially endwise relatively to each other in either direction. Other rolling bodies may be substituted for balls.
  • may either be set substantially at right-angles to the plane of the web 32, or they may have a slight initial setting such that their tips are at a different diameter from that at their roots. They may be longitudinally straight as shown in Figure 1, or may be curved as shown in Figure 3 to present longitudinally convex surfaces to the bearing they are to grip. They may be resilient. Their shape and setting depend upon the material used and the dimensions of the parts, including the thickness of the web and tongues, the flexibility of the material and the amount of distortion or buckling required when the parts are clamped in assembled position. For example, in a construction as shown in Figure 2, for a web 122 mm. diameter, a mild steel plate 1.4 mm. thick and cyanide hardened may be employed.
  • the centre portion of the blank is removed, the rim is channelled and a continuous ring, from which the tongues are to be formed, is pressed up around the central aperture.
  • the tongues are cut from this ring so that their overall length is 14 mm., and for a bearing having an outside diameter of 40 mm. there may be ten tongues of equal width and with parallel sides with spaces between the tongues 3 mm. wide, i. e. about one third of the width of the tongues.
  • the tongues are thus rounded to conform to the bearing and their roots preferably merge with a rounded corner into the web.
  • the maximum and minimum diameters of plug gauges to pass through the finished tongues without distorting the latter could be 40.2 mm. and 40 mm.
  • the tolerance can be as much as 0.2 mm.
  • the ring from which the tongues are cut is curved so that the tongues present a convex surface to the bearing, the curve being struck by a radius of cm. located 9 mm. from the base of the web.
  • the web itself is flat when unstressed and is formed with apertures 35 to increase its resilience, these apertures being pearshaped with their smaller ends radially directed to the centre of the bearing and each located onposite a space between two adjacent tongues.
  • the web 32 is formed with an out-turned flange 36 and with sockets 31, received in recesses 38 in the housing 23, for the clamping screws 33.
  • No washer, such as 34 above, is employed, but instead, the web 32 is formed with tabs 39 which project radially inwards, at the spaces between adjacent tongues 3
  • the web 32 is formed with a flange 40 turned over in the direction to lie snugly around the end of the housing 23.
  • the web 32 has attached to it by suitable means (riveting is shown) a thin metal washer which is pressed into channelled formation and serves two purposes.
  • engages the end of the bearing race 34 to apply endwise pressure thereto and ur e it against a dust excluder 46 which in turn bears against the shoulder formed on the shaft 2
  • Its portion 42 extends sufflciently closel to the collar 43 on the reduced end 25 of the shaft 2
  • the outer race 30 can he slid endwise into and out of operative position around the inner race 29, the direction in which it slides into operative position being the same as that in which it is urged by the buckled web.
  • the outer edge of the web 32 is cut away regularly to form projections 44 which are intended to interlock with lugs 45 reaching inwardly from the end of the housing 23.
  • the spaces between adjacent lugs 45 are such as to permit the web to be moved endwise past the lugs.
  • the web has tabs 39 like those shown in Figure 5, but a dust excluder 46 is shown interposed between the tabs 39 and the end of the bearing race 30.
  • is not reduced but a groove 11 is formed in the shaft into which a split ring 18 is sprung to provide a shoulder between which and a collar 43 the race 29 is confined.
  • an electric motor whereof the rotor is shown at 41, is carried inside a cylindrical casing 48 by a shaft 49 having reduced ends 50 and 5
  • a disc-- like web 32 with tongues 3
  • the webs 32 are so arranged that the tongues 3
  • are initially formed with their tips 54 at a different diameter from their roots 55.
  • the bearing mounting according to the invention is not used to locate a shaft endwise, but only to locate the bearing
  • the anti-friction rollers 56 run directly on a plain portion of the shaft 51 and are surrounded by a race 58.
  • the outer surface of the latter frictionally receives the interlaced tongues 3
  • These webs are initially formed somewhat dished in shape and the operation of securing them to the support 59 buckles them into the parallel formation shown in Figure 12 so that the tongues are pressed against the race 58 and the two webs counteract each other and co-opcrate to locate the bearing relatively to the support 59.
  • Flat spider-form washers 60 are interposed between the webs 32 and the race 58 and enable the webs to apply endwise thrust to the ends of the latter. These washers also serve to keep the rollers 56 in place and to exclude dust.
  • the inner race SI of a ball or roller bearing is held fast between a shoulder 62 on a shaft 63 and a clamping nut 64 screwed on to the shaft, and the outer surface of the outer race 65 frictionally receives the interlaced tongues ill on two oppositely-disposed webs 32, in a manner similar to that described in connection with Figures 12 and 13.
  • the webs are clamped in their support 66 by the ring 81 they are oppositely buckled into parallel formation thus urgin the tongues 3
  • is interposed between the opposed faces of the webs to preclude the webs closing towards each other, and a similar ring 69 is interposed between the outer edges of the webs.
  • the bearing shown is self-aligning.
  • FIG. 15 there is shown a roller which is endwise located with respect to its spindle 1
  • the spindle II is formed with two grooves 12 into each of which is sprung a split collar 13.
  • Each collar 13 is engaged by the outer end of the irmer race H of a bearing, and the inner end of the outer race 15 of each bearing is engaged by tabs 39 on webs 32 which have tongues 3 I embracing the outer surface of the race 15.
  • the invention is not restricted to the precise constructional details set forth.
  • the web instead of the web being initially flat and being brought into dished formation by the buckling, or being initially dished and being brought into flat formation by the buckling, it may be initially dished and be brought by the buckling into a shallower or a more deeply dished formation, if desired.
  • An anti-friction bearing mounting comprising a resilient disc-like web having a plurality of laterally extending tongues in annular series forming a hub for reception of the bearing within which the bearing is supported with its running axis normal to the plane of the web, said-tongues being constructed and arranged to frictionally engage and to exert radial pressure resiliently confining said bearing.
  • An anti-friction bearing according to claim 1 in which the web is provided with tabs projecting radially inward to engage the side face of the bearing.
  • a resilient disc-like web having a plurality of laterally extending tongues in annular series forming a hub for reception of the bearin within which the bearing is supported with its running axis normal to the plane of the web, and an antifriction bearing mounted in said hub with the said component tongues frictionally engaging and exerting radial pressure upon the outer peripheral surface of the bearing and resiliently confining said bearing in the web.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Support Of The Bearing (AREA)
US661838A 1945-04-27 1946-04-12 Mounting for antifriction bearings Expired - Lifetime US2521638A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB2521638X 1945-04-27
GB10657/45A GB581879A (en) 1945-04-27 1945-04-27 Improvements in or relating to mountings for anti-friction bearings
GB928744X 1945-04-27
GB310845X 1945-08-31
GB283530X 1949-04-28
GB250450X 1950-04-25

Publications (1)

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US2521638A true US2521638A (en) 1950-09-05

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US661838A Expired - Lifetime US2521638A (en) 1945-04-27 1946-04-12 Mounting for antifriction bearings

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CH (1) CH250450A (de)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718945A (en) * 1954-07-15 1955-09-27 Singer Mfg Co Electric clutch-brake motor controls
US2735734A (en) * 1956-02-21 Kalikow
US2812987A (en) * 1956-10-17 1957-11-12 Scott & Fetzer Co Bearing mounting structures
US2864550A (en) * 1956-11-23 1958-12-16 Gen Motors Corp Refrigerating apparatus
US2874008A (en) * 1956-02-23 1959-02-17 Skf Svenska Kullagerfab Ab Bearing mounting for silent running rotating machine parts
US3005668A (en) * 1953-10-19 1961-10-24 Szydlowski Joseph Method of and device for relieving shaft vibration
US3775029A (en) * 1972-02-09 1973-11-27 Lau Inc Direct driven blower
US3838899A (en) * 1973-07-27 1974-10-01 Gen Motors Corp Axially preloaded bearing assembly
JPS54150533A (en) * 1978-05-17 1979-11-26 Ebara Corp Bearing device
US4203704A (en) * 1976-11-23 1980-05-20 Etudes Techniques Et Representations Industrielles E.T.R.I. Electric fan and especially a fan of the flat type
US5033875A (en) * 1988-11-16 1991-07-23 Glaenzer Spicer Support bearing of a rotary shaft
WO1994016234A1 (en) * 1993-01-04 1994-07-21 Ampex Systems Corporation Axially displaced flexural bearing support
US5829892A (en) * 1997-06-27 1998-11-03 Dana Corporation Center bearing bracket and support
US6884032B1 (en) * 2003-11-19 2005-04-26 General Motors Corporation Water pump and method of closure
US7044646B1 (en) 1992-12-01 2006-05-16 Tōrque-Traction Technologies LLC Center bearing bracket and support
EP2088327A1 (de) 2008-02-11 2009-08-12 VARIAN S.p.A. Stütze für Wälzlager
US20100027930A1 (en) * 2008-07-31 2010-02-04 General Electric Company Nested bearing cages
WO2010116205A1 (en) * 2009-04-07 2010-10-14 Aktiebolaget Skf Flange assembly
WO2012004579A3 (en) * 2010-07-08 2013-02-28 Edwards Limited Pump
US10001028B2 (en) 2012-04-23 2018-06-19 General Electric Company Dual spring bearing support housing
EP4079407A1 (de) * 2021-04-19 2022-10-26 Alfdex AB Zentrifugalabscheider mit einem lagerhalter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04124325U (ja) * 1991-04-26 1992-11-12 マブチモーター株式会社 小型モータ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1352204A (en) * 1919-01-08 1920-09-07 Laval Separator Co De Yieldable bearing for centrifugal machines
FR527475A (fr) * 1920-11-09 1921-10-26 Claude Ramoneda Système de flasques de machines en tole emboutie
GB428077A (en) * 1933-11-07 1935-05-07 Frederick Turnbull Improvements in housings for ball or roller bearings
US2030193A (en) * 1932-11-02 1936-02-11 Gilbert Co A C Bearing structure
US2345952A (en) * 1942-12-16 1944-04-04 Singer Mfg Co Bearing construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1352204A (en) * 1919-01-08 1920-09-07 Laval Separator Co De Yieldable bearing for centrifugal machines
FR527475A (fr) * 1920-11-09 1921-10-26 Claude Ramoneda Système de flasques de machines en tole emboutie
US2030193A (en) * 1932-11-02 1936-02-11 Gilbert Co A C Bearing structure
GB428077A (en) * 1933-11-07 1935-05-07 Frederick Turnbull Improvements in housings for ball or roller bearings
US2345952A (en) * 1942-12-16 1944-04-04 Singer Mfg Co Bearing construction

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735734A (en) * 1956-02-21 Kalikow
US3005668A (en) * 1953-10-19 1961-10-24 Szydlowski Joseph Method of and device for relieving shaft vibration
US2718945A (en) * 1954-07-15 1955-09-27 Singer Mfg Co Electric clutch-brake motor controls
US2874008A (en) * 1956-02-23 1959-02-17 Skf Svenska Kullagerfab Ab Bearing mounting for silent running rotating machine parts
US2812987A (en) * 1956-10-17 1957-11-12 Scott & Fetzer Co Bearing mounting structures
US2864550A (en) * 1956-11-23 1958-12-16 Gen Motors Corp Refrigerating apparatus
US3775029A (en) * 1972-02-09 1973-11-27 Lau Inc Direct driven blower
US3838899A (en) * 1973-07-27 1974-10-01 Gen Motors Corp Axially preloaded bearing assembly
US4203704A (en) * 1976-11-23 1980-05-20 Etudes Techniques Et Representations Industrielles E.T.R.I. Electric fan and especially a fan of the flat type
JPS54150533A (en) * 1978-05-17 1979-11-26 Ebara Corp Bearing device
US5033875A (en) * 1988-11-16 1991-07-23 Glaenzer Spicer Support bearing of a rotary shaft
US7044646B1 (en) 1992-12-01 2006-05-16 Tōrque-Traction Technologies LLC Center bearing bracket and support
WO1994016234A1 (en) * 1993-01-04 1994-07-21 Ampex Systems Corporation Axially displaced flexural bearing support
US5829892A (en) * 1997-06-27 1998-11-03 Dana Corporation Center bearing bracket and support
US20050106014A1 (en) * 2003-11-19 2005-05-19 Messih Nader A. Water pump and method of closure
US6884032B1 (en) * 2003-11-19 2005-04-26 General Motors Corporation Water pump and method of closure
US8360754B2 (en) 2008-02-11 2013-01-29 Agilent Technologies, Inc. Support for rolling bearing
EP2088327A1 (de) 2008-02-11 2009-08-12 VARIAN S.p.A. Stütze für Wälzlager
US20090208354A1 (en) * 2008-02-11 2009-08-20 Aldo Crisi Support for rolling bearing
US20100027930A1 (en) * 2008-07-31 2010-02-04 General Electric Company Nested bearing cages
US8182156B2 (en) * 2008-07-31 2012-05-22 General Electric Company Nested bearing cages
WO2010116205A1 (en) * 2009-04-07 2010-10-14 Aktiebolaget Skf Flange assembly
WO2012004579A3 (en) * 2010-07-08 2013-02-28 Edwards Limited Pump
GB2481839B (en) * 2010-07-08 2017-03-22 Edwards Ltd An axially flexible pump bearing carrier
US9631630B2 (en) 2010-07-08 2017-04-25 Edwards Limited Bearing carrier for a pump
US10001028B2 (en) 2012-04-23 2018-06-19 General Electric Company Dual spring bearing support housing
EP4079407A1 (de) * 2021-04-19 2022-10-26 Alfdex AB Zentrifugalabscheider mit einem lagerhalter
WO2022223221A1 (en) * 2021-04-19 2022-10-27 Alfdex Ab A centrifugal separator comprising a bearing holder

Also Published As

Publication number Publication date
CH250450A (de) 1947-08-31

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