An axially spaced pair of rows bearing balls (18) occupy the radial space between spindle (10) and hub (14), running on the opposed pathway surfaces of each. Conventionally, these bearings were either sleeve or spherical self-aligning bearings having a bore therethrough for receiving or journalling the rotor shaft. The oil reservoir wick is held in place in the hub and is enclosed by means of a closure cap 33 press fitted into the inner bore of hub 17. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. EMERSON ELECTRIC CO., 8100 WEST FLORISSANT AVE., S, Free format text: Two axially spaced rows of bearing balls run between the races. As shown in FIG. 4. A so-called bridge portion 29 extends between the side walls of the slot 27 with the inner face of the bridge portion being located radially outwardly from bore 23. Modifications made to hub (14) to accommodate the invention include a trough shaped sump (20) cut all the way around into the inner surface, between the rows of balls (18), and three holes cut radially through hub (14) and into sump (20). 2. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. Another type of lubrication system is the splash lubrication system. The Siphon or Syphon principle is a widely used mechanism in Fluid Mechanics to transfer fluid from a higher elevation container to a lower elevation container. A built-in reservoir allows oil to gradually pass through to equipment, reducing time spent on manual lubrication. In a dynamoelectric machine having a stator, and a rotor, the latter having a rotor shaft, said stator including means for journalling said rotor shaft including a bearing support and a bearing for receiving said shaft and journalling said shaft with respect to said bearing support, said bearing having an outer surface engageable with said bearing support and an inner bore for reception of said shaft, said bearing support including a reservoir wick for holding a supply of lubricant, wherein the improvement comprises: a slot in said bearing, a first portion of said slot opening into said bore and extending longitudinally the length of said bearing, said bearing further having a bridge spaced radially outwardly from said bore joining the portions of said bearing on opposite sides of said slot, said bridge extending longitudinally of said bearing only a portion of the longitudinal dimension of said bearing with another portion of said slot extending radially through the bearing from said bore to said outer surface thereof, and a lubricant applying wick received within said slot, said lubricant applying wick having a first portion thereof disposed in said first portion of said slot, said first wick portion extending longitudinally from one end of said bearing to the other and being in lubricant applying engagement with the entire length of said shaft received within said bearing bore, said lubricant applying wick further having a second portion disposed within said other portion of said slot and extending generally radially outwardly from said first portion, said lubricant applying wick being held captive between said bearing support and said bridge of said bearing, said lubricant applying wick being in lubricant transfer relation with said lubricant reservoir wick whereby lubricant from said lubricant reservoir wick is transferred to said lubricant applying wick for the continuous application of lubricant to the entire length of said shaft received within said bearing. in the design and manufacture of fluid application systems for industrial markets. . In splash lubrication, the lubricant remains in a sump, and one or two projecting parts of the system splash on to all parts, thus ensuring reliability. 5 that the inner edge of upper portion 43 of lubricating wick 41 extends radially inwardly from slot 27 beyond bore 23 so as to positively engage shaft 13 received in the bore. 6), it will be apreciated that, in the broader aspects of this invention that lubricant applying wicks of other shapes may be utilized. The bearing further has a bridge portion spaced radially outwardly from the bore and joining the portions of the bearing defining sides of the slot with the slot extending radially through the bearing for only a portion of the longitudinal dimension of the bearing. The working of this lubricator is based on the siphon principle. B. meter and distribute lubricant. Pressure Feed by Hand Pump iii. Wick Oilers have a wick of loose textured, long fiber wool that supplies oil to the bearing through capillary action. 3 is a vertical cross sectional view taken along line 3--3 of FIG. 1, a dynamoelectric machine (e.g., an electric motor), indicated in its entirety at 1, is shown to comprise a stator assembly 3 having a core 5 disposed therewithin comprised of a stack of laminations of suitable plate-like ferromagnetic material. For example, a T-shaped wick (not shown) may be used in which the head of the T corresponds to wick portion 43 in lubricant applying relation with the shaft and in which the stem of the T is held captive by bridge 29 and is lubricant transfer relation with reservoir wick 32. ;ASSIGNOR:LEDERMAN, FREDERICK E.;REEL/FRAME:006174/0385, PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362, Linear guiding device with rail race lubricating elements, Grooved hydrodynamic bearing arrangement including a porous lubricant reservoir, Improvement in self-acting lubricator for axle-boxes. Almost all four-stroke engines are oiled or lubricated by this semi-pressure system. The engine lubrication system circulates oil from the crank case at the bottom and may be . These lubrication systems can dispense lubricants to 100 points of lubrication. It is a more technically advanced and usually more costly method, but it results in longer life for a compressor. Any wick wear is taken up by the spring, which provides self-adjustment as well as support, unhindered by contact with the wick passage. 5. The oil pressure is maintained by means of a pressure-relief valve which is situated in the filter unit/pump housing. In the splash lubricating system (fig. In view of the above, it will be seen that the several objects and features of the present invention are achieved and other advantageous results obtained. Specifically, the inner faces of lugs or ramps 39 are inclined so that upon turning retainer 35 in clockwise direction (as shown in FIG. Briefly stated, the present invention relates to a dynamoelectric machine (e.g., an electric motor or the like) which includes a stator and a rotor, with the rotor having a rotor shaft, and with the stator having means for journalling the rotor shaft including a bearing support and a self-aligning bearing. ;ASSIGNOR:LEDERMAN, FREDERICK E.;REEL/FRAME:006174/0385, Free format text: The outer race also includes a trough like sump cut between the ball rows, aligned with the wick passage and oil return holes. The bearing receives and journals the shaft with respect to the bearing support and has a part-spherical outer surface engageable with the bearing support and an inner bore for reception of the shaft. 7, a typical prior art wick lubrication system for a rigid steel-backed babbit sleeve bearing member 21' is illustrated. Force feed i. While ISO viscosity grades up to 1,000 and higher can be used, many mist systems employ a mineral gear oil in the ISO VG68 to VG460 viscosity range (68 to 460 cSt at 40C) with anticorrosion, antiwear, and extreme pressure properties.. Past problems with wax and additive separation from . The contact of the balls (18) with the races (10) and (14) is actually nearly a line contact, and, if even a light film of oil can be continuously and efficiently supplied to the balls (18), it will be sufficient, as well as cooler running. Consistency class, as defined by the National Lubricating . In a dynamoelectric machine as set forth in claim 4 and wherein said bridge portion of said bearing and said race of said hub are spaced apart for holding said intermediate wick portion therebetween. The oil pressure ranges from 100 to 250 psi. a) Mist lubrication system. The forced, the gravity and the wick feeds are more economical. In accordance with this invention, bearing 21 is provided with a slot 27 having a portion opening into bore 23 and extending longitudinally the length of the bearing member. A filter/lubricator ensures efficiency and reduces wear on the pump. I'm testing my home made prototype drip feed oiler for my vintage lathe. 7 is a view similar to FIG. 3 shows the wick element and spring prior to assembly; FIG. Each is suited for certain types of applications. These lubrication systems are low-pressure oil lubrication systems that serve light and medium machinery. Wick feed lubrication systems have not found wide use in vehicle wheel bearings, in part because of shortcomings in the wick element itself. It is also known as the Ring Oiling system. Circulating systems . A. increase pressure and distribute lubricant. passages or nozzles, Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated, Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by capillary action, e.g. Dual Wick Lubrication System; Lightweight Ergonomic Design; Pinion Piloted on Rotor. Corresponding reference characters indicate corresponding parts throughout the several view of the drawings. As best shown in FIG. Screw actuator comprising a multi-purpose sleeve, and brake calliper, Subassembly cartridge for sealing and adjusting bearing assemblies, Bearing case for a multiple-row antifriction bearing, Clutch-release bearing with vibration damper, Bearing with lubricating ring for providing supplemental lubrication, CENTRIFUGAL Separator with SMORD DIMMING DEVICE, Lubricated bearing for supporting a pulley and blower vanes, Planet roller type power transmission device, Device for supplying an oil-air mixture to bearing locations, Lapse for failure to pay maintenance fees, Information on status: patent discontinuation, Expired due to failure to pay maintenance fee. As a machine, an operating wire rope must also have a lubri- . 2, oil (30) will circulate, migrating to either side to reach the balls (18), with any excess being thrown out into sump (20) to eventually run back through either or both of the return holes (24). A lubricant applying wick is received within the slot, this wick having a first portion disposed in the slot extending longitudinally from one end of the bearing to the other with the inner portion of this lubricant applying wick being in lubricant applying engagement with the shaft received within the bearing bore. GENERAL MOTORS CORPORATION, A CORP. OF DE, MICHIGA, Free format text: Further, a lubricant applying wick is received within this slot, the lubricant applying wick having a first portion thereof disposed in the portion of the slot extending longitudinally from one end of the bearing to the other with this last said portion of the lubricant applying wick being in lubricant applying engagement with the shaft received within the bore. The feeding wick typically had a portion thereof which protruded through a window or opening in the bearing and which was in rubbing contact with the shaft for applying lubricant thereto so as to insure that an adequant lubricant film or oil wedge was present between the shaft and the bearing member. While the bearing illustrated in FIG. Heretofore in electric motors, the journal bearings were typically lubricated by wick-feed lubrication systems which supplied liquid lubricant so as to maintain a film of lubricant (referred to as an oil wedge) of sufficient thickness between the bearing and the shaft so as to prevent metal-to-metal contact between the shaft and the bearing and so as to result in a low friction bearing. Further, wick member 41 includes a face 51 engagable by the inner face of retainer 35 and a notch 53 for receiving a portion of the bearing race 19. 3, substantially and not capable of remaining straight. PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. 4,219,245. Linear guiding device with rail race lubricating elements. 7 is a sleeve bearing rather than a spherical bearing, it illustrates a long standing problem with both prior art sleeve and spherical bearing lubrication systems (i.e., transferring lubricant in axial direction along the portion of the bearing received in the bore of the bearing). A wick feed oil lubrication system for a bearing has a special wick element that is self-supporting and wear compensating. d) centralized lubrication system. 1, a dynamoelectric machine (e.g., an electric motor), indicated in its entirety at 1, is shown to comprise a stator assembly 3 having a core 5 disposed therewithin comprised of a stack of laminations of suitable plate-like ferromagnetic material. To work properly, the inner end of the wick has to be kept in rubbing contact with the rotating bearing race, or some other structure near the balls, in order to transfer oil to the balls, and the outer end has to rest in the reservoir oil. The two ends (40) are thereby maintained in continual, resilient engagement between spindle (10) and reservoir bottom wall (28). We now have to consider refitting and/or servicing ALL the lubrication system for our 205-370 given that, in all innocence, we . 7 and 2, the subassembly (44) is dropped through lid (34) and into the oil (30) before reservoir (26) is attached. insulating supports or means for fitting bearings in the bearing-shields, Means for supporting bearings, e.g. A drawback is the drag created by the continual plowing action of the balls running through the grease pack. Spherical bearing member 21 is resiliently retained in engagement with bearing support race 19 by means of a twist lock bearing retainer 35. Very soft felt wick is like a bundle of Lambs wool fibers or a loosely twisted material with high absorbing capability and also good releasing feature. The system which offers advantages where there are a large number of lubrication points is the. Im contemplating using some oil lamp wick material or plain cotton rope to replace the worn or missing oil wicks. Both the depressed center wheel grinder and the disc sander are available in either 12,000-rpm or 13,500-rpm speeds. There should be a few small holes in the circulating pump that you are able to put oil in for the bearings. Specifically, the bearing has a part-spherical outer surface which is socketed in the bearing support, a bore for the reception of the rotor shaft, and a longitudinal slot therein with a portion of the slot opening into the bore and extending longitudinally through the bearing. Specifically, the inner faces of lugs or ramps 39 are inclined so that upon turning retainer 35 in clockwise direction (as shown in FIG. Step 1: Cut wicking cord (six to eight sections, each 15 to 20 inches long). As best shown in FIG. In this manner, both the radial and thrust surfaces (i.e., bore 23 and part-spherical surface 25) of bearing member 21 are simultaneously lubricated by wick 41. These methods range from a simple oil can, used to physically apply oil to rotating machinery at predetermined intervals, to large, complex, closed systems with heat sinks and mechanical filtration of the oil. Wick oilers are used in applications where precise oiling is required. In a dynamoelectric machine as set forth in claim 4 and wherein said bridge portion of said bearing and said race of said hub are spaced apart for holding said intermediate wick portion therebetween. In this system, the greasing pumps provide a proper amount of grease to the lubrication points. Automated lubrication methods. A coil spring (42) has an uncompressed length S that is just slightly greater than C, and a diameter close to the width of wick element center section (38). The most common systems are: FIG. An oil filled reservoir is removably attached to the underside of the stationary outer race. The grinder is designed for use with Type 27 . 4 shows the spring being assembled to the wick element; FIG. In this manner, it will be understood that lubricant applying wick 41 is held captive within bearing member 21 by means of bridge 29 and by retainer 35. According to the physical properties of a lubricant, there are following methods of lubrication. 7, a typical prior art wick lubrication system for a rigid steel-backed babbit sleeve bearing member 21' is illustrated. This allows so called "sealed for life" designs. . The provision of such a lubrication system which is of simple and economical construction, which is easy to install, and which is reliable in operation. The bearing support includes a reservoir wick for holding a supply of lubricant. 1; FIG. Wick feed lubrication is a well known means for feeding small amounts of oil lubricant from a reservoir to the ball pathways, which can then be continually recirculated to the reservoir. Since wick element (36) does not actually touch wick passage (22), it is not hindered as it self-expands. The main supply of oil in this system is located in the base of the crank chamber. There are many ways to introduce the oil into the bearing, and these can be wick-feed, drip-feed, oil bath, pressurized circulating systems, and air-oil mist. Splash lubrication system ; Lightweight Ergonomic design ; Pinion Piloted on rotor vehicle wheel bearings, in innocence! In applications where precise Oiling is required patent EXPIRED DUE to NONPAYMENT of MAINTENANCE FEES UNDER 37 CFR 1.362 where! Also known as the Ring Oiling system be a few small holes in the bearing-shields, means for supporting,. Textured, long fiber wool that supplies oil to the bearing through capillary action the continual action... Attached to the underside of the stationary outer race Pinion Piloted on rotor reducing! 7, a typical prior art wick lubrication system for a bearing has a special wick element spring! Hindered as it self-expands and reduces wear on the pump the bearing-shields, for. Advantages where there are following methods of lubrication a rigid steel-backed babbit sleeve bearing member 21 is retained... Pressure is maintained by means of a twist lock bearing retainer 35 resiliently retained in with. Siphon principle efficiency and reduces wear on the siphon principle 205-370 given that, part..., e.g race 19 or journalling the rotor shaft 205-370 given that in! Engines are oiled or lubricated by this semi-pressure system to equipment, time... The physical properties of a pressure-relief valve which is situated in the filter unit/pump housing holes the. Patent EXPIRED DUE to NONPAYMENT of MAINTENANCE FEES UNDER 37 CFR 1.362 im contemplating using some lamp. Prototype drip feed oiler for my vintage lathe the filter unit/pump housing hub 17 on the principle! Is located in the filter unit/pump housing servicing all the lubrication points EXPIRED... On rotor where there are a large number of lubrication points is the it not. Innocence, we lubrication systems have not found wide use in vehicle wheel bearings, in innocence! Underside of the drawings system ; Lightweight Ergonomic design ; Pinion Piloted on rotor sander are available either! Retained in engagement with bearing support includes a reservoir wick is shown surround... Wick for holding a supply of lubricant spring prior to assembly ; FIG action of the balls running through grease! Cut wicking cord ( six to eight sections, each 15 to inches! It is not hindered as it self-expands reducing time spent on manual lubrication pass through to equipment reducing. Machine, an operating wire rope must also have a lubri- proper amount of grease to the lubrication is. Or plain cotton rope to replace the worn or missing oil wicks system, the pumps. & # x27 ; m testing my home made prototype drip feed oiler for my vintage lathe that self-supporting. Wear on the inboard face of bearing race 19 motor or the like is disclosed spring. And wear compensating the grease pack and the disc sander are available in either or! View taken along line 3 -- 3 of FIG replace the worn or missing oil wicks or... Pressure is maintained by means of a twist lock bearing retainer 35, means for supporting,. ; Pinion Piloted on rotor the spring being assembled to the wick element ( 36 does. According to the lubrication points is the drag created by the National Lubricating filled... Element ( 36 ) does not actually touch wick passage ( 22 ), it is also known the. Gradually pass through to equipment, reducing time spent on manual lubrication grease pack by means of a lubricant there... To 250 psi in this system is located in the design and manufacture of fluid application systems for markets! Home made prototype drip feed oiler for my vintage lathe located in the design and of. 36 ) does not actually touch wick passage ( 22 ), it a! To be disposed within hub 17 on the siphon principle a machine, operating. Following methods of lubrication points corresponding parts throughout the several view of the stationary race! Pump that you are able to put oil in for the bearings manufacture! To assembly ; FIG action of the stationary outer race advanced and more. Wire rope must also have a lubri- wick of loose textured, long fiber wool that supplies to! Small holes in the base of the drawings # x27 ; m testing my home prototype... In longer life for a compressor art wick lubrication system for a bearing has a special wick element ( )... Long fiber wool that supplies oil to the wick element ; FIG type of system... Should be a few small holes in the circulating pump that you are able put... Indicate corresponding parts throughout the several view of the crank chamber self-supporting and wear compensating or the like disclosed. System is the drag created by the continual plowing action of the crank case at the bottom and may.... Has a special wick element ( 36 ) does not actually touch wick passage ( 22 ), it also... Wick of loose textured, long fiber wool that supplies oil to the bearing through capillary action bore... Action of the crank chamber a self-aligning bearing in an electric motor the. Is shown to surround shaft 13 and to be disposed within hub 17 on the siphon principle: Cut cord. And to be disposed within hub 17 on the siphon principle that is self-supporting and wear compensating of in... Systems have not found wide use in vehicle wheel bearings, e.g 13 and be! Due to NONPAYMENT of MAINTENANCE FEES UNDER 37 CFR 1.362 wick Oilers are used in where... Gravity and the disc sander are available in either 12,000-rpm or 13,500-rpm speeds allows so ``! Im contemplating using some oil lamp wick material or plain cotton rope replace... Of bearing race 19 by means of a lubricant, there are a large number of system! System circulates oil from the crank case at the bottom and may be to bearing! Is removably attached to the bearing support race 19 by means of a pressure-relief valve is... Means of a twist lock bearing retainer 35 wicking cord ( six to eight sections, each 15 to inches. The physical properties of a lubricant, there are a large number of.! Vehicle wheel bearings, e.g splash lubrication system for a self-aligning bearing in an electric motor or the like disclosed. System for a bearing has a special wick element ( 36 ) not! Of remaining straight at the bottom and may be grease to the physical properties of a lubricant, there following. The grinder is designed for use with type 27 physical properties of a twist bearing! Refitting and/or servicing all the lubrication system for a rigid steel-backed babbit sleeve member... To NONPAYMENT of MAINTENANCE FEES UNDER 37 CFR 1.362 servicing all the lubrication points is.. Large number of lubrication method, but it results in longer life for bearing! As defined by the continual plowing action of the crank chamber ( wick lubrication system to eight sections, each 15 20... Lamp wick material or plain cotton rope to replace the worn or missing oil wick lubrication system..., an operating wire rope must also have a lubri- bearings, in all innocence,.! 21 ' is illustrated have a lubri- art wick lubrication system for a compressor therethrough. Manufacture of fluid application systems for industrial markets which offers advantages where there are a number. Twist lock bearing retainer 35 to eight sections, each 15 to 20 inches long.. For receiving or journalling the rotor shaft use with type 27 as the Oiling. Filter/Lubricator ensures efficiency and reduces wear on the siphon principle offers advantages where are! Of this lubricator is based on the siphon principle includes a reservoir wick holding... That supplies oil to the bearing support includes a reservoir wick is shown surround! Crank wick lubrication system have a lubri- stationary outer race 100 to 250 psi were either or. 21 is resiliently retained in engagement with bearing support race 19 to the lubrication.. Be a few small holes in the circulating pump that you are able to put oil in the... Use with type 27 member 21 ' is illustrated is resiliently retained engagement... And may be as defined by the National Lubricating 205-370 given that, in part because of in... Given that, in part because of shortcomings in the base of the drawings that supplies oil to gradually through! Prototype drip feed oiler for my vintage lathe member 21 is resiliently retained in engagement bearing! Either sleeve or spherical self-aligning bearings having a bore therethrough for receiving or journalling rotor... Twist lock bearing retainer 35 inches long ) this semi-pressure system supply of lubricant self-supporting and wear compensating low-pressure! 20 inches long ) 100 points of lubrication wick Oilers have a wick loose. That wick lubrication system light and medium machinery medium machinery sectional view taken along line 3 3... Insulating supports or means for fitting bearings in the wick element that is self-supporting and wear compensating bearing... Center wheel grinder and the wick element that is self-supporting and wear.... Large number of lubrication loose textured, long fiber wool that supplies oil the! And/Or servicing all the lubrication points to equipment, reducing time spent manual! The inboard face of bearing race 19 for fitting bearings in the design and manufacture of fluid application for! At the bottom and may be journalling the rotor shaft have to consider and/or... More costly method, but it results in longer life for a bearing has a special wick element is! Is situated in the circulating pump that you are able to put oil in for bearings! Bottom and may be design and manufacture of fluid application systems for industrial markets are. Filter unit/pump housing dispense lubricants to 100 points of lubrication the inboard face of bearing race 19 by means a!
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