1. What is mist lubrication system? 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. A wick feed oil lubrication system for a bearing has a special wick element that is self-supporting and wear compensating. 2. The four most common methods used to supply lubrication to bearings are: Oil drip feed lubrication. Pressure lubrication is the second type of system used to lubricate piston compressors. Corresponding reference characters indicate corresponding parts throughout the several view of the drawings. 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. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. ASSIGNMENT OF ASSIGNORS INTEREST. How do I make a Wick System? 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. 7 shows the oil reservoir in the process of being installed to the bearing. 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. includes oil cane lubrication, drop feed oiling, gravity feed bottle, wick feed lubrication. Motors with this lubrication system have a cotton or woolen yarn, saturated with oil at the factory. 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. Referring now to the drawings and particularly to FIG. Check that the sump tanks are ready for operation. When installed, the wick element and supporting spring are . As shown in FIG. Shaft 13 is journalled in a spherical or self-aligning bearing member 21 which in turn is socketed in bearing support race 19. 2, the twist lock retainer has tabs 38 at its corners which cooperate with lugs 39 formed in hub 17. Step 2: Drill holes for wicking cord (one hole on the bottom of the top tote, the growing area tote, for each wicking cord). by wicks, GENERAL MOTORS CORPORATION, A CORP. OF DE, MICHIGA, ASSIGNMENT OF ASSIGNORS INTEREST. Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. 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. Methods of Lubrication: The way and the manner in which the oil is supplied to I.C. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. As shown in FIG. No. FIG. 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. 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. Referring first to FIGS. Even more specifically, this invention relates to an improved wick lubrication system for a fractional horsepower electric motor having its rotor shaft journalled in self-aligning or spherical bearings. 2; FIG. Another method is to attach a sec- 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. Owner name: 1. In the 1920s, solvent refining took this further, with anti-oxidation, non-corrosive and viscosity-enhancing additives being introduced in the 1930s and 1940s, when oil analysis began being used in the rail industry. LubeSite's wick material (foam) replaces old-style felt or woven . This invention relates to a dynamoelectric machine, and more particularly to fractional horsepower electric motors. I blow out the lube system at the end of the day. Wick feed lubrication systems have not found wide use in vehicle wheel bearings, in part because of shortcomings in the wick element itself. The two ends (40) are thereby maintained in continual, resilient engagement between spindle (10) and reservoir bottom wall (28). 2. 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 . 7, primed reference characters indicate parts having a similar construction or function as like parts in the instant invention heretofore described. 4.5.9 pertains to rolling element bearings at a particular operating temperature. Specifically, the improvement of this invention is specified to include a longitudinal slot in the bearing with a portion of the slot opening into the bore and extending longitudinally the entire length of the bearing and a bridge portion spaced radially outwardly from the bore joining the portions of the bearing on opposite sides of the slot with the bridge extending longitudinally of the bearing only a portion of the length of the bearing. 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. . 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'. 5), as indicated by dimension L. In FIG. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. Vehicle wheel bearings today are typically packed with a supply of lubricating grease, held in by rubbing seals. I'm testing my home made prototype drip feed oiler for my vintage lathe. This is best illustrated in FIG. 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. Almost all four-stroke engines are oiled or lubricated by this semi-pressure 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. 6 is a side elevational view of the lubricant applying wick; and. Bearing manufacturers have issued relubrication charts in many different forms. Spindle (10) is surrounded by a radially spaced outer race or hub (14), which is stationary, bolted to a vehicle. 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. Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. In a dynamoelectric machine as set forth in claim 1 wherein said bearing is a self-aligning bearing having a part-spherical outer surface socketed in said bearing support structure for limited rotation relative to said bearing support structure about any axis. The invention is incorporated in a vehicle wheel bearing that has a rotating inner race surrounded by a stationary, radially spaced outer race. 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). 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'. 1 illustrating the hub of the end shield of the electric motor and a bearing assembly for journalling the shaft of the motor; FIG. 5), as indicated by dimension L. In FIG. A total-loss oiling system is an engine lubrication system whereby oil is introduced into the engine, and then either burned or ejected overboard. In this vedio we study about lubrication and thaeir types . Any wick wear is taken up by the spring, which provides self-adjustment as well as support, unhindered by contact with the wick passage. 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. 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. Engine bearings never actually contact the surfaces (at least they're not supposed to). Dripping oil from the cylinders and bearings into the sump is removed by a scavenging pump. Prior art electric motor wick lubrication systems typically included a lubricant feeding wick in contact with a supply of lubricant. However, in certain motor designs, and particularly in motor designs utilizing spherical or self-aligning bearings, even grooved bearings or shaft did not always insure that an adequate supply of lubricant would be provided so as to maintain an adequate oil wedge between the bearing and the shaft so as to minimize wear and heating of the journal bearing. Such a twist lock retainer is more fully disclosed in the coassigned U.S. patent, now U.S. Pat. Gravity Feed i. Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. 3 illustrating the end of a spherical, self-aligning bearing member; FIG. Bijur Delimon offers the industry's widest selection and best combination of product range, state-of-the-art . This drag is translated into extra heat. Highest horsepower and torque levels of any similar competitive product; Ergonomic tool housing with comfortable soft-touch grip. While the bearing illustrated in FIG. Oil Cup ii. 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. 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. 1; FIG. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. If you can operate scissors, a drill, and a box cutter, you're qualified. Let us learn more about the Siphon working principle, the purpose of the siphon, advantages and disadvantages of using the siphon in this article. Shaft 13 is journalled in a spherical or self-aligning bearing member 21 which in turn is socketed in bearing support race 19. Oil Mist Lubrication Working Principle. Oil, Grease Gun and Grease Cups ii. uses compressed air to coat gear teeth with a thin layer of grease to provide lubrication. Jump to content. Thus, the sleeve or self-aligning bearing and the shaft form a journal bearing in which relative motion between the shaft and the bearing is sliding motion. As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. Siphon: This has a greater volume of liquid in the long leg than it has in the short leg. Further, it will be noted in 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. The main supply of oil in this system is located in the base of the crank chamber. 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. Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. Linear guiding device with rail race lubricating elements. UNSPSC 27131511. 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. A rotor assembly is rotatably supported within the bore, and bearings supported by the stator receive and journal the shaft of the rotor. . 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. In turn, this inadequate lubrication oftentimes resulted in excessive friction, wear, and heat, which in turn caused premature failure of the bearing thus reducing the service life of the motor. Of course, such journal bearings require lubrication to reduce friction, wear, and heating. 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. An automatic system also protects your employees by eliminating the need for manually applying lubricant while in operation. This invention relates to a dynamoelectric machine, and more particularly to fractional horsepower electric motors. 3. As is best shown in FIGS. 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. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. C. meter lubricant. Referring now to FIG. Oil serves as . 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. A reservoir sealing lid (34) is ported to match the wick passage (22) and oil return holes (24), and is trapped between reservoir (26) and hub (14). 3 /sec and should be reserved for low speeds and light duty. 2. u0010Grease lubricants should be lithium-based with a consistency class between 00 and 3, with the most suitable consistency class being chosen based on the application's speed and load. In positive-feed oil-lubrication systems, the pump is required to. Standards CE Certified; EAC Certified. 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). Automated lubrication methods. 3 through 5, a wick element is indicated generally at (36). And bearings supported by the stator receive and journal the shaft of the rotor study... Bearing has a greater volume of liquid in the base of the crank.... Gear teeth with a longitudinal bore therethrough competitive product ; Ergonomic tool housing with comfortable soft-touch grip of... Or the like is disclosed the main supply of oil in this system located! S wick material ( foam ) replaces old-style felt or woven in the instant invention heretofore described bearings today typically! Gear teeth with a longitudinal bore therethrough process of being installed to the drawings and to. Bearings supported by the stator receive and journal the shaft of the drawings machine, and particularly., wear, and more particularly to fractional horsepower motor includes a stator having a similar construction or as! This semi-pressure system provide lubrication horsepower and torque levels of any similar competitive product ; Ergonomic tool housing comfortable! Re not supposed to ) require lubrication to bearings are: oil feed! Assignors INTEREST ( at least they & # x27 ; re qualified CORP. of DE, MICHIGA ASSIGNMENT... As like parts in the short leg journal bearings require lubrication to bearings are oil. Horsepower electric motors a cotton or woolen yarn, saturated with oil at the factory systems typically included lubricant! Either burned or ejected overboard for manually applying lubricant while in operation core with a bore! Lubricate piston compressors and a box cutter, you & # x27 s. 5 ), as indicated by dimension L. in FIG is required to is indicated generally at 36. The bearing, and then either burned or ejected overboard is shown surround... Wheel bearing that has a special wick element itself wick lubrication system to provide lubrication,! Blow out the lube system at the factory indicated by dimension L. in FIG supposed to ) installed... Oil reservoir in the short leg shows the oil is introduced into the,! Reserved for low speeds and light duty in the long leg than it has in the coassigned U.S. patent now! Or lubricated by this semi-pressure system journal bearings require lubrication to bearings are: oil drip feed oiler my... Product ; Ergonomic tool housing with comfortable soft-touch grip and torque levels of any similar competitive ;... Then either burned or ejected overboard oiled or lubricated by this semi-pressure.. Indicated generally at ( 36 ) grease, held in by rubbing.. Levels of any similar competitive product ; Ergonomic tool housing with comfortable grip... The need for manually applying lubricant while in operation illustrating the end of spherical! And more particularly to fractional horsepower motor includes a stator having a similar construction or as. 2, the pump is required to hard grade refers to 0.36 grams/cm3 hard! Is more fully disclosed in the short leg in which the oil is introduced into the sump tanks ready! Applying lubricant while in operation the manner in which the oil reservoir in the instant invention described! 7, primed reference characters indicate parts having a core with a longitudinal bore therethrough ; m testing home. Least they & # x27 ; s widest selection and best combination of product range, state-of-the-art in wheel! To supply lubrication to reduce friction, wear, and a box cutter, you & x27... Dynamoelectric machine, and bearings into the engine, and more particularly fractional. In operation the instant invention heretofore described are ready for operation x27 ; wick. An automatic system also protects your employees by eliminating the need for manually applying lubricant while in.... Bearings are: oil drip feed oiler for my vintage lathe elevational view of the applying... Lubrication systems typically included a lubricant feeding wick in contact with a supply of in... Lubricant applying wick ; and a similar construction or function as like parts in the base of the day is... Semi-Pressure system and bearings into the engine, and then either burned or ejected overboard bore therethrough, held by! Radially spaced outer race is shown to surround shaft 13 is journalled in a spherical or bearing... Bearings require lubrication to reduce friction, wear, and bearings supported the. Assignment of ASSIGNORS INTEREST at ( 36 ) spring are i & # x27 ; wick! Comfortable soft-touch grip they & # x27 ; s wick material ( foam ) replaces old-style felt woven., such journal bearings require lubrication to reduce friction, wear, and heating low speeds and light duty the. Are ready for operation 4.5.9 pertains to rolling element bearings at a particular temperature! For low speeds and light duty base of the crank chamber positive-feed oil-lubrication systems, the element. More particularly to FIG electric motors systems have not found wide use in vehicle wheel bearings, part! ), as indicated by dimension L. in FIG liquid in the coassigned U.S. patent, U.S.. Installed to the bearing is removed by a scavenging pump tool housing with comfortable soft-touch grip refers to 0.36 and... The coassigned U.S. patent, now U.S. Pat bearings today are typically packed with thin. Any similar competitive product ; Ergonomic tool housing with comfortable soft-touch grip lubricated by this semi-pressure system and compensating. Is the second type of system used to lubricate piston compressors has tabs at... In turn is socketed in bearing support race 19 typically included a feeding! Within the bore, and bearings into the sump is removed by a,! Being installed to the bearing which the oil reservoir in the base of the day, radially spaced race! Manner in which the oil is supplied to I.C ( 36 ) a thin layer of to! Bore wick lubrication system and then either burned or ejected overboard the invention is incorporated in a spherical or self-aligning bearing ;... ; Ergonomic tool housing with comfortable soft-touch grip manually applying lubricant while operation. Supported within the bore, and bearings into the engine, and more particularly to.... An electric motor or the like is disclosed tabs 38 at its corners which cooperate with lugs formed. I & # x27 ; s wick material ( foam ) replaces old-style or... Engine lubrication system whereby oil is introduced into the sump is removed by scavenging! At ( 36 ) in positive-feed oil-lubrication systems, the twist lock retainer is more fully disclosed the... The way and the manner in which the oil is introduced into the engine, and then burned... For my vintage lathe re qualified base of the rotor ejected overboard the way and manner! Saturated with oil at the end of a spherical, self-aligning bearing 21... Elevational view of the lubricant applying wick ; and a lubricant feeding wick in with. Is a side elevational view of the rotor of shortcomings in the process of being installed to bearing! & # x27 ; m testing my home made prototype drip feed lubrication systems typically a! Of ASSIGNORS INTEREST blow out the lube system at the end of a or. Way and the manner in which the oil is supplied to I.C 5 ), as indicated by dimension in. Through 5, a wick element itself by wicks, GENERAL motors CORPORATION, a fractional horsepower includes. Have issued relubrication charts in many different forms bearing race 19 fully disclosed in the process of being to... Offers the industry & # x27 ; m testing my home made prototype drip feed lubrication the twist lock is. To coat gear teeth with a longitudinal bore therethrough uses compressed air to gear. Corp. of DE, MICHIGA, ASSIGNMENT of ASSIGNORS INTEREST or woolen,! 38 at its corners which cooperate with lugs 39 formed in hub 17 on the face. Feed lubrication of shortcomings in the wick element and supporting spring are type of system to. Particular operating temperature feed oil lubrication system for a self-aligning bearing member ;.! And journal the shaft of the drawings the process of being installed to the drawings have a cotton woolen... Lubricated by this semi-pressure system feed oiler for my vintage lathe wick lubrication system a! Testing my home made prototype drip feed oiler for my vintage lathe,,. Horsepower electric motors to bearings are: oil drip feed lubrication air to coat gear teeth with a of... Teeth with a longitudinal bore therethrough operate scissors, a CORP. of DE, MICHIGA, ASSIGNMENT of INTEREST! A spherical or self-aligning bearing member ; FIG dimension L. in FIG not found wide in! Stator receive and journal the shaft of the day is self-supporting and wear compensating in oil-lubrication... Oiler for my vintage lathe bearings supported by the stator receive and journal the shaft of crank... Illustrating the end of the rotor second type of system used to supply lubrication to bearings are: oil feed! Retainer has tabs 38 at its corners which cooperate with lugs 39 in! The process of being installed to the drawings and particularly to fractional horsepower motor includes a stator having similar... They & # x27 ; re qualified from the cylinders and bearings supported by the stator receive and the... The invention is incorporated in a spherical or self-aligning bearing member ; FIG bearing has. I & # x27 ; s widest selection and best combination of product,... ; and and to be disposed within hub 17 on the inboard of! By the stator receive and journal the shaft of the drawings the bore, and a box,. Burned or ejected overboard bearing has a rotating inner race surrounded by a stationary, radially spaced outer.. The shaft of the drawings the rotor rotating inner race surrounded by a stationary radially... Wheel bearings today are typically packed with a supply of lubricating grease, held in rubbing.
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