Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3274955 A
Publication typeGrant
Publication dateSep 27, 1966
Filing dateSep 3, 1963
Priority dateSep 3, 1963
Publication numberUS 3274955 A, US 3274955A, US-A-3274955, US3274955 A, US3274955A
InventorsThomas David G
Original AssigneeLord Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Resilient roller bearing adapter
US 3274955 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

Sept. 27, 966 D. G. THOMAS 3,274,955

RESILIENT ROLLER BEARING ADAPTER Filed Sept. 5, 1963 IN VEN TOR.

k BY "(11% W W m a a a United States Patent 3,274 955 RESILIENT ROLLER iiEARlNG ADAPTER David G. Thomas, Erie, Pa., assignor to Lord Corporation, a corporation of Pennsylvania Filed Sept. 3, 1963, Ser. No. 306,009 1 Claim. (Cl. 105-224.1)

This invention is a roller bearing adapter for railway cars with pedestal type side frames which protects the bearing from high stresses.

In the drawing, FIG. 1 is a side elevation of a railway car side frame, partly in section; FIG. 2 is a section on line 2-2 of FIG. 1; FIG. 3 is a section on line 3-3 of FIG. 1; and FIG. 4 is a section of a modification.

In the drawing, 1 indicates the pedestal of a railway truck side frame, 2 indicates the journal, 3 indicates a roller bearing, and 4 indicates the bearing retainer. These parts are of common construction.

The bearing is mounted in the pedestal by an adapter having a cap plate 5 with its under side provided with a semicylindrical recess 6 for the bearing cup 7. The recess has end flanges 8 straddling the bearing cup.

At opposite sides of the cap plate 5 are flanges 9 straddling the pedestal jaws 10. There is a substantial clearance 11 between the flanges and the pedestal jaws which allows end play between the bearing and frame. At the lower part of the flanges 9, the cap plate is formed with a guide surface 12 having a sliding clearance with the vertical surfaces 13 of the pedestal jaws. This re stricts or limits movement of the bearing fore and aft of the car. Between the upper part of the flanges 9 is a body 14 of elastomer bonded to a surface 15 on the cap plate 5 and to a channel shaped plate 16 embracing the pedestal jaw 10. The space between the surface 15 and the associated pedestal jaw is less than the thickness of the body 14 so that upon installation, the elastomer 14 is compressed between the surface 15 and the plate 16. Fore and aft motion of the adapter plate stresses the bodies 14 in tension or compression while end play stresses the bodies in shear.

At the top of the cap plate 5 is a body 17 of elastomer bonded to upwardly presented load receiving surface 18 on the cap plate and to a channel shaped top plate 19 having flanges 20 straddling the load carrying surface 21 of the frame. The upper surface of the plate 19 may have an elastomeric coating 22 to permit better distribution of the load between the section 21 of the frame and the upper surface 22 of the plate. The elastomeric coating 22 will conform to surface irregularities of the load carrying section of the frame. The body 17 yields to allow for misalignment of the normally perpendicular relationship of the journal and side frame and also to allow for endwise motion of the journal relative to the side frame. The car load stresses the body 17 in compression while the endwise motion of the journal stresses the body 17 in shear. Since the elastomer is much softer in shear than in compression, relatively small resistance is developed to endwise motion. This reduces the wheel flange wear. The endwise motion is "limited by the clearance 11 between the flanges 9 and the jaws but even when this motion is taken up, metal to metal contact is eliminated due to the extension of the elastomer 14 over the flanges 23 of the plate 16. The elimination of metal ICC to metal contact prevents the extremely high shock forces. The elastomer also permits considerable rocking movement between the journal and frame, thereby reducing stress on both the side frame and bearing.

The modification of FIG. 4 differs in the relation of the cap plate 5a and the pedestal jaws 10a. In other respects the structure is as illustrated in FIGS. 1 and 2. The cap plate 5a has tongues 24 at the center of vertical surfaces 25. Each tongue is received in a channel or groove 26 in the adjacent pedestal jaw 10a. On opposite sides of the channel, each pedestal jaw has a flange 27 with a vertical surface 28 presented toward the surface 25 on the cap plate. Bonded to the surface 25 and the tongue 24 is a body 29 of elastomer. Sections 30 of the elastomer between the opposed surfaces 25, 28 restrict or limit movement of the bearing fore and aft of the car. Sections 31 of the elastomer between the outermost parts of the tongues 24 and the bottoms of the channels 26 also limits fore and aft movement. End play .is limited by sections 32 of elastomer between the sides of the tongues 24 and the sides of the channels 26. The elastomer 29 also permits considerable rocking or tilting between the journal and frame.

What is claimed as new is:

In combination wit-h a railway truck frame having spaced pedestal jaws and a railway car journal having a roller bearing between the pedestal jaws, an adapter cap plate between the pedestal jaws recessed on its underside to receive the roller bearing and having end play clearance with respect to the jaws, said frame having a downwardly presented load carrying surface between the upper ends of the jaws and said cap plate having an upwardly presented load receiving surface spaced below the load carrying surface, a top plate having its upper surface spaced below and presented to the load carrying surface and having upwardly extending flanges straddling said load carrying surface and in end thrust transmitting relation to the frame, said top plate having its lower surface spaced above and presented to the load receiving surface on the cap plate, a body of elastomer sandwiched between and having lower and upper surfaces respectively anchored to the upwardly presented load receiving surface of the cap plate and to the lower surface of the top plate and carrying the car load in compression and the end play in shear, and a coating of elastomer bonded to the upper surface of the top plate and engaging and conforming to the load carrying surface of the frame.

References Cited by the Examiner UNITED STATES PATENTS 2,136,733 11/1938 Dean -225 2,207,848 7/1940 Barrows 105-2241 2,229,429 1/ 1941 Travilla IDS-224.1 2,267,466 12/1941 Janeway 308-184 2,282,161 5/1942 Brauer 308-184 2,299,560 10/ 1942 Travilla 105-2241 2,314,644 3/1943 Adams et al. 105-224.] 2,365,875 12/1944 Hersey et al. 308- 2,573,159 10/1951 Noe 308-184 2,777,402 1/ 1957 Rossell 105-225 ARTHUR L. LA POINT, Primary Examiner. H. BELTRAN, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2136733 *Mar 18, 1936Nov 15, 1938Budd Edward G Mfg CoRail car truck
US2207848 *Jul 18, 1934Jul 16, 1940Symington Gould CorpRailway truck
US2229429 *Oct 15, 1938Jan 21, 1941Gen Steel Castings CorpRailway truck structure
US2267466 *Dec 11, 1939Dec 23, 1941Chrysler CorpRailway vehicle
US2282161 *Jul 31, 1940May 5, 1942Fairbanks Morse & CoJournal assembly for axle or shaft bearings
US2299560 *Aug 19, 1940Oct 20, 1942Gen Steel Castings CorpRailway axle journal lateral motion device
US2314644 *Jul 13, 1940Mar 23, 1943Eugene Adams EverettRailway car truck
US2365875 *May 10, 1943Dec 26, 1944Arthur J HerseyCushioned journal box
US2573159 *Mar 10, 1949Oct 30, 1951Fafnir Bearing CoJournal bearing
US2777402 *Sep 19, 1952Jan 15, 1957Transit Res CorpPedestal assembly for rail trucks
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3381629 *Jul 1, 1965May 7, 1968Buckeye Steel Castings CoCushion mounted bearing adaptor for railway trucks
US3699897 *Nov 25, 1970Oct 24, 1972Lord CorpResilient bearing adapters for railway trucks
US3785298 *Feb 16, 1972Jan 15, 1974Buckeye Steel Castings CoCushion mounting bearing adaptor for railway trucks
US3888187 *Dec 3, 1973Jun 10, 1975Van Moss Jr John HDampened axle bearing mounting
US3965825 *Oct 8, 1974Jun 29, 1976Lord CorporationResilient truck axle bearing mounting
US4003316 *Oct 23, 1973Jan 18, 1977Monselle Dale EArticulated railway car trucks
US4131069 *Aug 28, 1975Dec 26, 1978Railway Engineering Associates, Inc.Articulated railway car trucks
US4655143 *Jun 21, 1984Apr 7, 1987Railway Engineering Associates, Inc.Articulated trucks
US4706571 *Jan 27, 1986Nov 17, 1987Railway Engineering Associates, Inc.Self-steering trucks
US4889054 *Dec 2, 1987Dec 26, 1989Railway Engineering Associates, Inc.Steering arms for self-steering trucks and truck retrofitting method
US5009521 *May 11, 1990Apr 23, 1991A. Stucki Company Division Of Hansen, Inc.Railway truck and bearing adapter therefor, and method for controlling relative motion between truck components
US5237933 *Jul 25, 1991Aug 24, 1993Lord CorporationService-life, low-profile, retrofittable, elastomeric mounting for three-piece, railroad-car trucks
US5509358 *Dec 8, 1994Apr 23, 1996Amsted Industries IncorporatedRailcar truck bearing adapter construction
US5544591 *Feb 24, 1995Aug 13, 1996Standard Car Truck CompanyStabilized roller bearing adapter
US5572931 *Dec 8, 1994Nov 12, 1996Amsted Industries IncorporatedRailcar truck bearing adapter construction
US5746137 *Aug 20, 1996May 5, 1998Amsted Industries IncorporatedRailcar truck bearing adapter construction
US5794538 *Apr 1, 1997Aug 18, 1998Amsted Industries IncorporatedRailcar truck bearing adapter construction
US6142081 *May 7, 1998Nov 7, 2000Naco, Inc.Pedestal rocker seat for providing passive axle steering to a rigid railway truck
US6178894Jan 7, 2000Jan 30, 2001Charles J. LeingangLateral control mount
US6347588Sep 13, 2000Feb 19, 2002Lord CorporationLateral control mount
US6874426Feb 3, 2003Apr 5, 2005National Steel Car LimitedRail road car truck with bearing adapter and method
US6895866Aug 1, 2002May 24, 2005National Steel Car LimitedRail road freight car with damped suspension
US7004079Jan 31, 2003Feb 28, 2006National Steel Car LimitedRail road car and truck therefor
US7143700Jul 8, 2004Dec 5, 2006National Steel Car LimitedRail road car truck and fittings therefor
US7255048Aug 1, 2002Aug 14, 2007Forbes James WRail road car truck with rocking sideframe
US7328659Jul 25, 2005Feb 12, 2008National Steel Car LimitedRail road freight car with resilient suspension
US7497169Dec 4, 2006Mar 3, 2009National Steel Car LimitedRail road car truck and fittings therefor
US7571684Sep 11, 2007Aug 11, 2009National Steel Car LimitedRail road freight car with damped suspension
US7603954May 14, 2007Oct 20, 2009National Steel Car LimitedRail road car and truck therefor
US7610862Aug 14, 2007Nov 3, 2009National Steel Car LimitedRail road car truck with rocking sideframe
US7631603Dec 3, 2004Dec 15, 2009National Steel Car LimitedRail road car truck and bolster therefor
US7654204Dec 29, 2008Feb 2, 2010National Steel Car LimitedRail road car truck with bearing adapter and method
US7699008Sep 11, 2007Apr 20, 2010National Steel Car LimitedRail road freight car with damped suspension
US7739961 *Dec 21, 2007Jun 22, 2010Standard Car Truck CompanyLow profile shear pad and adapter
US7775163Sep 24, 2007Aug 17, 2010National Steel Car LimitedRail road car and bearing adapter fittings therefor
US7823513Dec 24, 2003Nov 2, 2010National Steel Car LimitedRail road car truck
US7845288Jul 8, 2004Dec 7, 2010National Steel Car LimitedRail road car truck and members thereof
US7946229May 16, 2008May 24, 2011National Steel Car LimitedRail road car truck
US8011306Oct 20, 2009Sep 6, 2011National Steel Car LimitedRail road car and truck therefor
US8113126Dec 15, 2009Feb 14, 2012National Steel Car LimitedRail road car truck and bolster therefor
US8205560Apr 20, 2010Jun 26, 2012Standard Car Truck CompanyLow profile shear pad and adapter
US8272333Dec 7, 2010Sep 25, 2012National Steel Car LimitedRail road car truck and members thereof
US8413592Nov 2, 2010Apr 9, 2013National Steel Car LimitedRail road car truck
US8720347Sep 15, 2012May 13, 2014National Steel Car LimitedRelieved bearing adapter for railroad freight car truck
US8726812Sep 15, 2012May 20, 2014National Steel Car LimitedRail road freight car truck with self-steering rocker
US8746151Mar 3, 2009Jun 10, 2014National Steel Car LimitedRail road car truck and fitting therefor
US8770113Aug 10, 2009Jul 8, 2014National Steel Car LimitedRail road freight car with damped suspension
EP1273764A1 *Jul 6, 2001Jan 8, 2003Atlas Copco Energas GmbhTurbomachine
WO2012066169A1 *Nov 8, 2011May 24, 2012Patentes Talgo, S.L.Axle box for railway wheelsets and bogies
Classifications
U.S. Classification105/224.1, 384/582
International ClassificationB61F5/00, B61F5/32, B61F5/30, F16C27/06, F16C27/00, B61F15/00
Cooperative ClassificationF16C27/066, B61F5/32, B61F15/00, B61F5/305, F16C27/063
European ClassificationF16C27/06C, F16C27/06B, B61F5/30B, B61F5/32, B61F15/00