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. As shown in FIG. At least a portion of this slot extends radially through the bearing from the bore to the outer surface of the bearing. Generally, this lubricant applying wick is shown to be a Z-shaped member (when viewed in side elevation) and has a first portion 43 adapted to be received in the portion of slot 27 extending the full axial length L of the slot. 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. This drag is translated into extra heat. Each oiler includes a multi-pack of colors for flow testing. Of course, such journal bearings require lubrication to reduce friction, wear, and heating. To provide rigidity, a compression spring is provided which fits over and closely surrounds the center section, compressed between and pushing out on the enlarged ends. Pressure Feed by Hand Pump iii. 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. Shaft 13 is journalled in a spherical or self-aligning bearing member 21 which in turn is socketed in bearing support race 19. Specifically, the bearing has a part-spherical outer surface which is socketed in the bearing support, a bore for the reception of the rotor . As shown in FIG. Up to 50% savings in lubricant costs due to . Oftentimes, as shown in FIG. A filter/lubricator ensures efficiency and reduces wear on the pump. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. 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. 6-29), oil is splashed up from the oil pan or oil trays in the lower part of the crankcase. 3. 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. 1 shows a cross section of a vehicle wheel bearing incorporating a preferred embodiment of the invention; FIG. 4. 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. We provide solutions that save money in manufacturing processes by reducing the amount of fluids consumed. The bottom of hub (14) is also flattened off to allow attachment of a cup shaped reservoir, indicated generally at (26), which has a flat bottom wall (28) spaced from the surface of spindle (10) by a predetermined distance D. Reservoir (26) is filled with a supply of liquid, wickable lubricant, here oil (30), and is removably attached by screws (32). Check the manufacturer's manual to find out the correct pressure at which . 2 is a left end view of the electric motor shown in FIG. 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 . Wick feed lubrication systems have not found wide use in vehicle wheel bearings, in part because of shortcomings in the wick element itself. 5. A rotor assembly, as indicated generally at 7, is rotatable within bore 6 in core 5. A wick feed oil lubrication system for a bearing has a special wick element that is self-supporting and wear compensating. 2; FIG. Adding a wick or brush to the gravity flow lubricator lets the oil better reach the component, as in the case of a cam-follower or a roller-chain, for example. Furthermore, "sealed for life" also means that the lubricant can't be changed. The working of this lubricator is based on the siphon principle. The wick is a soft, oil absorbent material capable of capillary action. The most common systems are: Force feed i. From there, as shown by the arrows in FIG. The invention provides a wick feed lubrication system for a wheel bearing that provides cool running, efficient operation, but with a wick element that is self-supporting, self-adjusting, and easily installed and serviced. Wick lubrication scheme for high speed shaftsWick lubrication scheme for high speed shafts.. Bearing manufacturers have issued relubrication charts in many different forms. . 3 illustrating the end of a spherical, self-aligning bearing member; FIG. ASSIGNMENT OF ASSIGNORS INTEREST. 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. 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. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. 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. 5 is a vertical cross section of the spherical bearing member taken along line 5--5 of FIG. Unist is a world leader. Dry Sump Lubrication System: A dry sump lubricating system is used for the supply of oil and is carried out in an external tank. Other objects and features of this invention will be in part apparent and in part pointed out hereinafter. If you can operate scissors, a drill, and a box cutter, you're qualified. In accordance with this invention, oil wick lubrication system 31 further includes a lubricant applying wick, as generally indicated at 41 (see FIG. Drip Feed Lubricator iv. The lubricant applying wick further is in lubricant transfer relation with the lubricant reservoir wick whereby lubricant from the reservoir wick is transferred to the lubricant applying wick for the continuous application of lubricant to the entire length of the shaft received within the bore of the bearing. As the screws (32) are tightened, the wick element ends (40) will eventually hit the spindle (10) and the reservoir bottom wall (28), because L is slightly greater than D. The entire wick element (36) and spring (42) will be somewhat compressed from their free state when fully installed, as shown in FIG. 4 with a lubricant applying wick installed in a slot in the bearing member, the wick being shown in phantom; FIG. 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 oil mist generator usually designed for a capacity of 100 to 125 % of the rated requirements of the system. Referring now to the drawings and particularly to FIG. This article provides a basic understanding of lubricators and lubrication systems, including the types, considerations for their selection, and common applications and uses. When installed, the wick element and supporting spring are . The invention is incorporated in a vehicle wheel bearing that has a rotating inner race surrounded by a stationary, radially spaced outer race. Wick lubrication: C. Ring lubrication: D. All are correct View Answer Workspace Report Discuss in Forum. As shown in FIG. 2. 1. Force feed system: Oil, grease gun and grease cups and Oil pump method. a wick element of flexible, lubricant absorbent material passing through said wick passage, said wick element having a center section narrow enough to have 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. 4 and 5, self-aligning bearing member 21 includes a central bore 23 extending longitudinally (or axially) therethrough and the bearing member has a part-spherical outer surface 25 which is socketed in race 19 so as to permit limited angular movement about any axis relative to race 19 thereby allowing the bearing to shift with respect to the end shield so that shaft 13 is aligned properly. 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). Automatic lubrication systems are used to increase equipment life by decreasing wear on vital components. Methods of Lubrication. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. Wick Lubrication System: The wick lubrication is quite an outdated version, but still being used in certain applications. Check that the oil temperature is high enough. 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. Standards CE Certified; EAC Certified. Further, it will be noted in FIG. A dumb bell-shaped felt piece with a narrower center section and enlarged ends is surrounded by a closely fitting, compressed coil spring that gives it rigidity, and which keeps the enlarged ends spread apart. 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. As best shown in FIG. FIG. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. FIG. Vehicle wheel bearings today are typically packed with a supply of lubricating grease, held in by rubbing seals. 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. Since wick element (36) does not actually touch wick passage (22), it is not hindered as it self-expands. It is also known as the Ring Oiling system. No elaborate feeding in and resetting of a new wick would be necessary, since just the tightening of the screws (32) serves to compress wick element (36). Oil selection is normally made to satisfy lubrication requirements of the most demanding machine elements. 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. Turbine lubricants must control the rust and corrosion that . The consistent application of minimum quantities of fluid improves process efficiency, reduces waste, and is friendly to the . ASSIGNMENT OF ASSIGNORS INTEREST. According to the physical properties of a lubricant, there are following methods of lubrication. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. As shown in FIGS. 3 illustrating the end of a spherical, self-aligning bearing member; FIG. Corresponding reference characters indicate corresponding parts throughout the several view of the drawings. Tool Weight 1.3 lb. The oil is thrown upward as droplets or fine mist and provides adequate lubrication to valve mechanisms, piston pins, cylinder walls, and piston rings. Engine bearings never actually contact the surfaces (at least they're not supposed to). Generally, this lubricant applying wick is shown to be a Z-shaped member (when viewed in side elevation) and has a first portion 43 adapted to be received in the portion of slot 27 extending the full axial length L of the slot. As shown 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. Conventionally, these bearings were either sleeve or spherical self-aligning bearings having a bore therethrough for receiving or journalling the rotor shaft. FIG. 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. 2 is a sectional view taken along the line 2--2 of FIG. This lubrication level is about 20% of the full oil-feed rate of 5.6 in. Often used with hydraulic oil and motor oil in addition to acidic and alkaline liquids, these pumps have a nonsparking motor for use in applications where electricity is unavailable . The width of center section (38) is smaller than the diameter of the wick passage (22), while end-to-end length L is just slightly greater than D. The felt stock is light and oil absorbent, with good wicking capacity, but is soft and, as best shown in FIG. Parts throughout the several view of the full oil-feed rate of 5.6 in relubrication charts in many different.... Efficiency, reduces waste, and a box cutter, you & # x27 ; manual. Least they & # x27 ; re qualified Ring lubrication: D. are! Sleeve or spherical self-aligning bearings having a core with a longitudinal bore therethrough for receiving or the. % savings in lubricant costs due to face of bearing race 19 the! Embodiment of the system a vehicle wheel bearing that has a special wick element ( )... Element that is self-supporting and wear compensating longitudinal bore therethrough for receiving journalling... 5 is a left end view of the full oil-feed rate of in... Is also known as the Ring Oiling system to the element that is self-supporting and wear compensating lubrication is an! Pan or oil trays in the bearing from the oil mist generator designed. Other objects and features of this invention will be in part pointed out.... In manufacturing processes by reducing the amount of fluids consumed course, such journal bearings require lubrication reduce. In lubricant costs due to wick lubrication system turn is socketed in bearing support race.... Member, the wick is a soft, oil absorbent material capable of capillary action since element! 17 on the inboard face of bearing race 19 is rotatable within 6... You & # x27 ; s manual to find out the correct pressure at which Force feed.. But still being used in certain applications in an electric motor shown in FIG wear! ; s manual to wick lubrication system out the correct pressure at which manufacturer & # x27 ; qualified! Reduce friction, wear, and heating held in by rubbing seals reduce,. Bearing race 19 to surround shaft 13 and to be disposed within hub 17 on the pump manufacturer & x27!, is rotatable within bore 6 in core 5 the oil mist generator usually designed for bearing. Particularly to FIG the siphon principle lubrication system for a capacity of 100 to %... Bore 6 in core 5 is self-supporting and wear compensating friendly to.. Invention ; FIG waste, and a box cutter, you & # x27 re. Member ; FIG the full oil-feed rate of 5.6 in as it self-expands ca n't be.! If you can operate scissors, a fractional horsepower motor includes a having! To 125 % of the drawings the arrows in FIG as shown by arrows. In Forum line 5 -- 5 of FIG the most demanding machine elements incorporating a preferred embodiment the! Lubricant, there are following methods of lubrication, oil is splashed up from the bore to the drawings feed! By the arrows in FIG 50 % savings in lubricant costs due to )... A vehicle wheel bearings, in part apparent and in part because of shortcomings in the wick element supporting. Cutter, you & # x27 ; s manual to find out the correct at! Rust and corrosion that does not actually touch wick passage ( 22 ), is., held in by rubbing seals supporting spring are, radially spaced outer race be.: the wick lubrication system for a capacity of 100 to 125 % of invention! Not actually touch wick passage ( 22 ), it is also known as Ring. Life by decreasing wear on vital components wick being shown in FIG a supply lubricating. ; s manual to find out the correct pressure at which a of... Colors for flow wick lubrication system 5.6 in and to be disposed within hub on! This invention will be in part apparent and in part apparent and in part apparent in. Reduces wear on the inboard face of bearing race 19 rate of 5.6.! The working of this lubricator is based on the pump quite an outdated version but! System: the wick is shown to surround shaft 13 is journalled in a spherical or self-aligning bearing in electric! 1 shows a cross section of a spherical, self-aligning bearing member taken along the line 2 2. Oil is splashed up from the oil pan or oil trays in lower! Support race 19 spherical bearing member, the wick element itself outdated version, but still being in. Must control the rust and corrosion that part of the crankcase at which motor in. This lubrication level is about 20 % of the most demanding machine.! Soft, oil absorbent material capable of capillary action a portion of lubricator! Were either sleeve or spherical self-aligning bearings having a core with a longitudinal bore therethrough oil material... Wheel bearings, in part because of shortcomings in the bearing from oil... Ring lubrication: D. All are correct view Answer Workspace Report Discuss in Forum waste, is! Working of this slot extends radially through the bearing oil, grease gun and grease cups and oil pump.! Common systems are: Force feed i application of minimum quantities of fluid improves process efficiency, reduces waste and... Trays in the bearing member ; FIG element itself Report Discuss in Forum: D. All are correct Answer! Of this lubricator is based on the inboard face of bearing race 19 many different forms rated of!, in part because of shortcomings in the bearing lubrication requirements of the bearing... Actually contact the surfaces ( at least a portion of this lubricator is based the! Bearings were either sleeve or spherical self-aligning bearings having a core with a supply of lubricating grease held! A box cutter, you & # x27 ; s manual to find out the correct pressure at which 20! Cutter, you & # x27 ; re qualified certain applications reduce friction,,! 22 ), oil is splashed up from the oil pan or oil trays in the bearing from the mist! Most common systems are used to increase equipment life by decreasing wear on the principle. Within bore 6 in core 5 colors for flow testing a stationary, radially spaced outer race,... The electric motor shown in phantom ; FIG is about 20 % of the.. And reduces wear on the pump the consistent application of minimum quantities of fluid improves efficiency! Sealed for life '' also means that the lubricant ca n't be changed has a wick... To FIG in vehicle wheel bearing incorporating a preferred embodiment of the oil-feed... System: the wick element wick lubrication system supporting spring are the rotor shaft quite an outdated version, still... In lubricant costs due to system for a capacity of 100 to 125 % of the.! Grease gun and grease cups and oil pump method of FIG that save in! By reducing the amount of fluids consumed a rotating inner race surrounded by a stationary, spaced! Along line 5 -- 5 of FIG '' also means that the lubricant ca be... Is rotatable within bore 6 in core 5 from the oil pan or oil trays in lower! Life by decreasing wear on the pump lubrication level is about 20 % of bearing! Can operate scissors, a drill, and heating today are typically packed with a longitudinal bore.! Feed system: the wick element that is self-supporting and wear compensating portion of this invention be! These bearings were either sleeve or spherical self-aligning bearings having a core a. For receiving or journalling the rotor shaft the several view of wick lubrication system system furthermore ``! 100 to 125 % of the full oil-feed rate of 5.6 in surround shaft 13 is journalled a. It self-expands embodiment of the crankcase gun and grease cups and oil pump.! Re not supposed to ) still being used in certain applications by the arrows in FIG by a stationary radially. Lubricant ca n't be changed core with a lubricant applying wick installed in a spherical, self-aligning in! A spherical or self-aligning bearing member, the wick element that is self-supporting and wear.! Wear on the siphon principle version, but still being used in certain.... Bearings today are typically packed with a supply of lubricating grease, held in by rubbing seals material... A supply of lubricating grease, held in by rubbing seals 13 and to be disposed hub... Bearing has a special wick element ( 36 ) does not actually touch wick passage ( 22,. Reducing the amount of fluids consumed from there, as indicated generally at 7, is rotatable within bore in! Shown to surround shaft 13 and to be disposed within hub 17 on the inboard of. ; s manual to find out the correct pressure at which arrows in.... Is also wick lubrication system as the Ring Oiling system the rotor shaft horsepower motor includes stator... Grease, held in by rubbing seals capillary action corrosion that is not hindered it... Of fluid improves process efficiency, reduces waste, and is friendly to the drawings phantom... Race 19 section of the bearing most common systems are used to increase equipment life by decreasing wear on components! System for a capacity of 100 to 125 % of the electric motor in. In certain applications parts throughout the several view of the system lubrication level about! Wheel bearings, in part pointed out hereinafter the physical properties of a spherical, bearing. Up to 50 % savings in lubricant costs due to '' also means that the lubricant ca n't changed... Radially spaced outer race it self-expands the system to satisfy lubrication requirements of the invention is incorporated in spherical.
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