Which type of lubrication system is used in two-stroke engine? The outer race also includes a trough like sump cut between the ball rows, aligned with the wick passage and oil return holes. Ring lubrication system is generally used for lubrication of: A. Vertical bearings: B. Horizontal bearings: C. Inclined bearings: D. None of these Consistency class, as defined by the National Lubricating . It will be understood that a notch (not shown) may be provided in bearing race 19 of hub 17 for reception of intermediate portion 47. Methods of Lubrication: The way and the manner in which the oil is supplied to I.C. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. No. Benefits. In accordance with this invention, oil wick lubrication system 31 further includes a lubricant applying wick, as generally indicated at 41 (see FIG. 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. Further, it will be noted in FIG. The most common systems are: It will be understood that a notch (not shown) may be provided in bearing race 19 of hub 17 for reception of intermediate portion 47. Wick oilers are used on horizontal bearings operating in dusty surroundings. As reservoir (26) is moved into position, the subassembly (44) moves through wick passage (22) freely, because the center section (38) is narrower. 7 is a view similar to FIG. 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. 5 shows the spring fully assembled to the wick element; FIG. 3 /sec and should be reserved for low speeds and light duty. This system allows long intervals between maintenance of bearings and prevents the bearings becomes too much oil. 5, bridge 29 is located at one end of the slot whereby another portion of slot 27 extends radially outwardly from bore 23 to the outer part spherical surface 25 of the bearing member for purposes as will appear. An oil filled reservoir is removably attached to the underside of the stationary outer race. Safety-lock throttle lever prevents . Wick Feed Lubricator: Figure 8.7 show the assembled drawing of wick feed lubricator. 5 illustrating a typical prior art self-aligning bearing having a prior art lubricant applying wick installed therein. 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. Owner name: The choice of oil lubricant for recirculating linear bearings is based primarily on viscosity. No. Referring first to FIGS. Specifically, the bearing has a part-spherical outer surface which is socketed in the bearing support, a bore for the reception of the rotor . 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. Different methods are used to apply lubricants to machinery. When installed, the wick element and supporting spring are compressed between the bearing spindle and bottom wall of the oil reservoir, running through a loosely fitting passage in the surrounding hub. 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. 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. 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. From there, as shown by the arrows in FIG. Should the inner end (40) wear over time, the compressed spring (42) and wick element (36) can expand to take up the slack, maintaining snug engagement automatically and passively. COMPATIBLE TOOLS: Use the Dynabrade Gear Oil on Dynabrade's geared tools that utilize a wick-type lubrication system. If you can operate scissors, a drill, and a box cutter, you're qualified. Feed rate is determined by the viscosity of the lubricant and the type of wick being used. 4 with a lubricant applying wick installed in a slot in the bearing member, the wick being shown in phantom; FIG. Windings or coils 9 (shown in phantom) are disposed within longitudinal slots (not shown) extending through core 5. As a machine, an operating wire rope must also have a lubri- . A needle valve adjusts the rate of flow, which may be seen as drops passing through the window beneath the glass reservoir. 2), the retainer is forced axially inwardly thereby resiliently biasing the bearing 21 into engagement with its race 19. Specifically, bearing member 21' is shown to have a bore 23' with a slot or window S extending radially through the bearing member. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. 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. Hand feed force feed splash feed gravity feed answer is: The wick lubrication is quite an outdated version, but still being used in certain applications. According to the physical properties of a lubricant, there are following methods of lubrication. Medium hard felt wick has density from 0.26 grams/cm3 to 0.32 grams/cm3 and hard grade refers to 0.36 grams/cm3 and above . They 'float' on a thin film of oil that is forced under pressure into . It consists of a cup having a central tube and a shank that can be screwed into the oil hole. The means employed to maintain this steady supply of oil include drip feeds, wick feeds, and the wiping type of oiler. Shaft 13 is journalled in a spherical or self-aligning bearing member 21 which in turn is socketed in bearing support race 19. Drip Feed Lubricator iv. 5 to 10. This invention relates to a dynamoelectric machine, and more particularly to fractional horsepower electric motors. Flow rate depends on temperature.. Use 90 elbow cups for side-mount applications and where vertical space is limited.. Oil cups with wick feed have a wick that extends through the threaded connection of the cup and keeps the bearing dust-free and lubricated, even after the oil . 1. Answer (1 of 2): It's a means of 'operating' an engine's oiling system prior to starting the engine so as to minimize wear during startup. 3,164,422 which discloses a prior wick lubrication system for the spherical bearing supports of an electric motor. Wick Lubrication System We constantly carry out our spirit of ''Innovation bringing advancement, Highly-quality guaranteeing subsistence, Administration selling advantage, Credit rating attracting buyers for Wick Lubrication System, Pool Pump O Ring Grease , Steam Turbine Oil System , Submersible Pump Lubricant , 120 Lb Grease Pump . Spherical bearing member 21 is resiliently retained in engagement with bearing support race 19 by means of a twist lock bearing retainer 35. 2. Soft felt wick has density between 0.16 grams/cm3 to 0.22 grams/cm3. 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. As a consequence, it is soft, with little internal rigidity. As best shown in FIG. Grooves G are provided on the inner surface of bore 23' so as to distribute lubricant in axial direction from window S along the bearing. 276. In a wick feed lubrication system for a bearing of the type having a rotating inner race surrounded by a stationary, radially spaced outer race between a row of rolling elements run, said outer race having a wick passage opening to said radial space, and a sealed, liquid lubricant containing reservoir attached beneath said outer race and wick passage opening, said reservoir having with a bottom wall spaced from race, the improvement comprising. uses compressed air to coat gear teeth with a thin layer of grease to provide lubrication. 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. A wick passage is cut through the outer race, opening both to the reservoir and between the ball rows, bordered by two oil return holes. insulating supports or means for fitting bearings in the bearing-shields, Means for supporting bearings, e.g. Referring next to FIGS. LubeSite's wick material (foam) replaces old-style felt or woven . Vari-feed Wick Oilers provide a dual method of gravity feed and capillary action to supply lubricant in a constant flow. UNSPSC 27131511. Check the manufacturer's manual to find out the correct pressure at which . As the elevator operates, the hoist ropes are cleaned. There should be a few small holes in the circulating pump that you are able to put oil in for the bearings. 7 is a view similar to FIG. Prior art electric motor wick lubrication systems typically included a lubricant feeding wick in contact with a supply of lubricant. EMERSON ELECTRIC CO., 8100 WEST FLORISSANT AVE., S, Free format text: 4 is an enlarged cross sectional view taken along line 4--4 of FIG. Among the several objects and features of the present invention may be noted the provision of a wick-feed lubrication system for a dynamoelectric machine (e.g., a fractional horsepower motor) which supplies adequate lubricant to the shaft throughout the entire length of the shaft journalled within the bearing without the necessity of grooving either the shaft or the bearing; The provision of such a lubrication system in which both the radial and thrust bearing surface of an electric motor bearing are adequately lubricated by a single feeding wick; The provision of such a lubrication system in which the feeding wick is positively secured in place in lubricant applying contact with the shaft; and. Thus, it will be appreciated that only a portion of the shaft received within the bore of the bearing comes into positive lubricant applying engagement with the wick. FIG. It will be specifically noted that this slot is only a fraction of the length of bore 23' and it receives a wick applying member 41'. The four most common methods used to supply lubrication to bearings are: Oil drip feed lubrication. In a dynamoelectric machine as set forth in claim 2 further comprising a bearing retainer member adapted to engage said part-spherical surface of said self-aligning bearing for resiliently holding said bearing in socketed relation on said bearing support. 2, the twist lock retainer has tabs 38 at its corners which cooperate with lugs 39 formed in hub 17. This provides good, complete lubrication, and the grease, being a semisolid, is not nearly so likely to leak past the seals as would a liquid, oil type lubricant. 7, primed reference characters indicate parts having a similar construction or function as like parts in the instant invention heretofore described. B. meter and distribute lubricant. I'm testing my home made prototype drip feed oiler for my vintage lathe. Oil and bearings. When the wick element-spring unit is installed through the wick passage, it is slightly compressed, with the inner end biased against the inner race and the outer end biased against the reservoir bottom wall. The wick has another portion which extends generally radially outwardly within the slot, this other portion being in lubricant transfer relation with a second lubricating wick for transferring lubricant from the second wick through the first wick to the shaft and for the continuous application of lubricant to the entire length of the shaft journalled within the bearing. Oftentimes, as shown in FIG. The wick is a soft, oil absorbent material capable of capillary action. Windings or coils 9 (shown in phantom) are disposed within longitudinal slots (not shown) extending through core 5. includes oil cane lubrication, drop feed oiling, gravity feed bottle, wick feed lubrication. Rotor assembly 7 further includes a rotor body 11 which is mounted on and which is rotatable with a rotor shaft 13 which extends endwise from at least one end of the rotor body. The weight of the liquid in the long leg is acted upon by gravity and when the liquid flows out from the end of the airtight siphon conduit, vacuum suction is created and the siphon draws liquid up the short leg and over the crest to the outlet. No. 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. Among the several objects and features of the present invention may be noted the provision of a wick-feed lubrication system for a dynamoelectric machine (e.g., a fractional horsepower motor) which supplies adequate lubricant to the shaft throughout the entire length of the shaft journalled within the bearing without the necessity of grooving either the shaft or the bearing; The provision of such a lubrication system in which both the radial and thrust bearing surface of an electric motor bearing are adequately lubricated by a single feeding wick; The provision of such a lubrication system in which the feeding wick is positively secured in place in lubricant applying contact with the shaft; and. Wick lubrication: C. Ring lubrication: D. All are correct View Answer Workspace Report Discuss in Forum. a) Mist lubrication system. Significant savings in repair and spare costs. 2 and 3, retainer member 35 is comprised of a generally square-shaped member of sheet spring steel or the like having a central opening therethrough with a socket shoulder 37 defining the central opening therethrough and with the socket shoulder bearing on the outer part spherical surface 25 of bearing member 21. Follow these steps when starting up the machine: Make sure that the lube unit and sump tanks are clean. Grooves G are provided on the inner surface of bore 23' so as to distribute lubricant in axial direction from window S along the bearing. Wick Lubrication System- This lubricator operates on capillary action. done. Check that the sump tanks are ready for operation. 3, hub 17 is shown to be provided with a oil wick lubrication system, as indicated at 31, including an oil reservoir wick 32. The wick is a soft, oil absorbent material capable of capillary action. A rotor assembly, as indicated generally at 7, is rotatable within bore 6 in core 5. 5), as indicated by dimension L. In FIG. Prior art electric motor wick lubrication systems typically included a lubricant feeding wick in contact with a supply of lubricant. The one shown in Fig. In Oil circulatory systems, the oil is continuously supplied to various moving parts and bearings. 6). 5. 7, a typical prior art wick lubrication system for a rigid steel-backed babbit sleeve bearing member 21' is illustrated. A filter/lubricator ensures efficiency and reduces wear on the pump. 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 aim of the gravity system, as of all lubrication systems, is to provide a reliable means of supplying the bearing surfaces with the proper amount of lubricating oil. c) ladder lubricator system. Further in accordance with this invention, it will be noted that lubricant is also applied to the outer face of bearing member by excess lubricant from wick 41 thereby to insure the interface between part-spherical surface 25 of bearing member 21 and race 19 is adequately lubricated. Turbine lubricants must have excellent thermal and oxidation resistance at bearing oil temperatures that may approach 100 o C in typical steam turbine or industrial heavy-duty gas turbine and exceed 200 o C in aero-derivative gas turbines. This article provides a basic understanding of lubricators and lubrication systems, including the types, considerations for their selection, and common applications and uses. Country of Origin USA (subject to change) Product Description. 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. 5. Wick feed lubrication systems have not found wide use in vehicle wheel bearings, in part because of shortcomings in the wick element itself. The core has a bore 6 extending longitudinally therethrough. The product of n (shaft rpm), dm (shaft diameter), and b f (an adjustment factor that depends on bearing style) is found on the x-axis.The user will have to find the appropriate b f factor from vendor literature . Oil can be strained, filtered, and cooled because it is . Oil serves as . Splash Lubrication System: Oil is conveyed to the bearings by means of a scoop attached to the shaft. Check that the shut-off valves at the main pumps are open. Oil is carried to the bearing by the combined action of capillarity and gravity. Bearing manufacturers have issued relubrication charts in many different forms. Lubrication is necessary for the proper main-tenance of any machine. Corresponding reference characters indicate corresponding parts throughout the several view of the drawings. Stator assembly 3 further includes an end shield or bearing support structure, as generally indicated at 15, having a hub 17 formed at its center for rotatably supporting or journalling rotor shaft 13. Wick (cotton or wool s) carries oil from the well to the shaft sleeve. The oil is thrown upward as droplets or fine mist and provides adequate lubrication to valve mechanisms, piston pins, cylinder walls, and piston rings. Force feed i. . The bearing support includes a reservoir wick for holding a supply of lubricant. 7, primed reference characters indicate parts having a similar construction or function as like parts in the instant invention heretofore described. Conventionally, these bearings were either sleeve or spherical self-aligning bearings having a bore therethrough for receiving or journalling the rotor shaft. It will be further noted that portion 43 of the lubricating wick extends the full length L of bearing member 21 and thus is in positive lubricant applying relationship with the shaft along the entire length of the shaft received in the bearing. A. The oil pressure ranges from 100 to 250 psi. Dry Sump Lubrication System: A dry sump lubricating system is used for the supply of oil and is carried out in an external tank. 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. Felt applicators act as reservoir and applicator in one highly resilient and long lasting piece. As best shown in FIG. Of course, such journal bearings require lubrication to reduce friction, wear, and heating. Lubrication (Oil) System $ 0.56 - $ 328.16. Vehicle wheel bearings today are typically packed with a supply of lubricating grease, held in by rubbing seals. . The consistent application of minimum quantities of fluid improves process efficiency, reduces waste, and is friendly to the . Standards CE Certified; EAC Certified. a wick element of flexible, lubricant absorbent material sized to pass through said wick passage, said wick element having a center section narrow enough to have surrounding clearance from said wick passage, enlarged ends, and a free state, end-to-end length sufficient to reach from said inner race to the reservoir bottom wall, and, Assigned to GENERAL MOTORS CORPORATION, A CORP. OF DE, GENERAL MOTORS CORPORATION, A CORP. OF DE, Application filed by Motors Liquidation Co, MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING, ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL, SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS, Parts of bearings; Special methods for making bearings or parts thereof, Special parts or details in view of lubrication, Special parts or details in view of lubrication with liquid lubricant, Details of supply of the liquid to the bearing, e.g. Air-Powered Drum Pumps with Hose andFilter/Lubricator for Water, Oil, Coolants, and Chemicals. Force feed system: Oil, grease gun and grease cups and Oil pump method. Turbine lubricants must control the rust and corrosion that . 5, wick portion 43 also extends the length of bearing member 21. In conclusion, a self-supporting, automatically wear compensating oil wicking system is provided, with no significant component or cost penalty as compared to a conventional system. If the design capacity is more than 125% of rated capacity, then care should be taken that the . 3. In a dynamoelectric machine as set forth in claim 1 wherein said lubricant applying wick is generally z-shaped in side elevation with said first portion of said lubricant applying wick at its top, with said second portion at its bottom, and with an intermediate portion between said first and second portions, said first and intermediate portions defining a notch for reception of said bridge portion of said bearing. Turn off the circulating pump. Oil, Grease Gun and Grease Cups ii. To work properly, the inner end of the wick has to be kept in rubbing . When you test the lubrication system, you need to check that the level of the pressure in the system is correct and, for wick-type systems you also need to check that the right number of oil drops is delivered. Wick lubrication system for self-aligning bearing, Assigned to EMERSON ELECTRIC CO., A CORP. OF MO, GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER, Casings or enclosures characterised by the shape, form or construction thereof, Means for supporting bearings, e.g. Almost all four-stroke engines are oiled or lubricated by this semi-pressure system. Reference may be made to U.S. Pat. In the engine, dippers on the connecting-rod bearing caps enter . 6), it will be apreciated that, in the broader aspects of this invention that lubricant applying wicks of other shapes may be utilized. Oftentimes, as shown in FIG. Wick lubrication scheme for high speed shaftsWick lubrication scheme for high speed shafts.. Shut off the breaker to the pump, too, in order to reduce the chance of electrocution while lubricating the bearings. A wick feed lubrication system for a bearing of the type having a rotating inner race surrounded by a stationary, radially spaced outer race between which a row of rolling elements run, comprising. 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. The main supply of oil in this system is located in the base of the crank chamber.
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