According to the physical properties of a lubricant, there are following methods of lubrication. 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. The scoop lifts the oil upward and . a) drop feed lubricator system. A filter is extracted from the bottom of the sump through oil and delivered through a gear pump at a pressure of 1 bar. 3. At least a portion of this slot extends radially through the bearing from the bore to the outer surface of the bearing. While the bearing illustrated in FIG. 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 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. Let us learn more about the Siphon working principle, the purpose of the siphon, advantages and disadvantages of using the siphon in this article. Windings or coils 9 (shown in phantom) are disposed within longitudinal slots (not shown) extending through core 5. done. 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. 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. Owner name: a) Mist lubrication system. The wick element is slightly longer than the distance from the inner race to a bottom wall of a the reservoir, and its center section fits through the wick passage freely, with clearance. The oil pressure ranges from 100 to 250 psi. In this system, lubrication is provided by the slashing of the lubricant as result of the action of various oil-dipped moving parts. Drip Feed Lubricator iv. Oil Mist Lubrication Working Principle. 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 . 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. 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. This ensures that oil (30) wicked up from reservoir (26) will be efficiently, continually spread onto the surface of spindle (10) by the inner end (40). Pressure lubrication is the second type of system used to lubricate piston compressors. Pressure Feed by Hand Pump iii. No. 1. 1. Force feed i. 2. This grease type, see Fig. 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. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. 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. As is best shown in FIGS. 6 is a side elevational view of the lubricant applying wick; and. Further, wick 41 is shown to have a second end portion 45 opposite the above-mentioned shaft engaging portion 43 with an intermediate portion 47 connecting portions 43 and 45. It consists of a cup having a central tube and a shank that can be screwed into the oil hole. 4 is an enlarged cross sectional view taken along line 4--4 of FIG. 3. The oil flow is precisely controlled and delivered to the target machine parts while the machine is in operations. 2 is a left end view of the electric motor shown in FIG. Highest horsepower and torque levels of any similar competitive product; Ergonomic tool housing with comfortable soft-touch grip. Step 1: Cut wicking cord (six to eight sections, each 15 to 20 inches long). 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. Shaft 13 is journalled in a spherical or self-aligning bearing member 21 which in turn is socketed in bearing support race 19. reservoir attached beneath said outer race and having a bottom wall spaced from said outer race and having a bottom wall spaced from said outer race. 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. 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. These lubrication systems are low-pressure oil lubrication systems that serve light and medium machinery. 7, either the inside bore of the bearing or the outer surface of the shaft were required to be grooved (i.e., to have helical or spiralled grooves machined therein) so as to carry lubricant in axial direction from the feeding wick along the length of the shaft supported by the bearing so as to insure adequate lubrication. 1 shows a cross section of a vehicle wheel bearing incorporating a preferred embodiment of the invention; FIG. 2. 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. Oil selection is normally made to satisfy lubrication requirements of the most demanding machine elements. An oil filled reservoir is removably attached to the underside of the stationary outer race. Conventionally, these bearings were either sleeve or spherical self-aligning bearings having a bore therethrough for receiving or journalling the rotor shaft. Oftentimes, as shown in FIG. A. Another method is to attach a sec- The oil pressure is maintained by means of a pressure-relief valve which is situated in the filter unit/pump housing. 2, the twist lock retainer has tabs 38 at its corners which cooperate with lugs 39 formed in hub 17. Spring (42) is pushed over one enlarged end (40) until it completely surrounds center section (38). I blow out the lube system at the end of the day. 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. Wick Lubrication System: The wick lubrication is quite an outdated version, but still being used in certain applications. 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. 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. 6). 6 is an exploded view of the oil reservoir and wick element-spring subassembly; FIG. 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. Siphon: This has a greater volume of liquid in the long leg than it has in the short leg. Reference may be made to U.S. Pat. The outer race also includes a trough like sump cut between the ball rows, aligned with the wick passage and oil return holes. Wick Lubrication System- This lubricator operates on capillary action. 6 is a side elevational view of the lubricant applying wick; and. suspension (16). Lubrication (Oil) System $ 0.56 - $ 328.16. . A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. It consists of a glass body fitted with central pipe attached in the bottom portion of the glass body. . 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. Oftentimes, as shown in FIG. 6-29), oil is splashed up from the oil pan or oil trays in the lower part of the crankcase. 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. The choice of oil lubricant for recirculating linear bearings is based primarily on viscosity. In 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. 3. 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. Reference may be made to U.S. Pat. Other objects and features of this invention will be in part apparent and in part pointed out hereinafter. In FIG. 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. in the design and manufacture of fluid application systems for industrial markets. c) ladder lubricator system. 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. 2. Leather Sewing Machines . Such a twist lock retainer is more fully disclosed in the coassigned U.S. patent, now U.S. Pat. 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. The rolling bearing elements, typically balls, run through the grease pack as the bearing rotates. Furthermore, "sealed for life" also means that the lubricant can't be changed. 4.5.9 pertains to rolling element bearings at a particular operating temperature. Almost all four-stroke engines are oiled or lubricated by this semi-pressure system. 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. Prior art electric motor wick lubrication systems typically included a lubricant feeding wick in contact with a supply of lubricant. As shown in FIG. . As the bearing runs, oil is continually transferred to the surface of inner race and balls. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. 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. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. 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. 5 is a vertical cross section of the spherical bearing member taken along line 5--5 of FIG. 5 to 10. This allows so called "sealed for life" designs. Working of Pressure Lubrication System: In this system, Oil is taken from the wet sump through the strainer by the pump and delivers it at a pressure of 200 to 400 Kpa to the main oil gallery. 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). 5, wick portion 43 also extends the length of bearing member 21. FIG. 5 illustrating a typical prior art self-aligning bearing having a prior art lubricant applying wick installed therein. Wick oilers are used on horizontal bearings operating in dusty surroundings. 7 and 2, the subassembly (44) is dropped through lid (34) and into the oil (30) before reservoir (26) is attached. Wick Lubricator iii. 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. What is mist lubrication system? 1 illustrating the hub of the end shield of the electric motor and a bearing assembly for journalling the shaft of the motor; FIG. 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. Engine influence the efficiency of the choice of the lubricant. Disclosed in the bottom portion of this slot extends radially through the from... Tabs 38 at its corners which cooperate with lugs 39 formed in hub 17 on the face! Long ) trays in the bottom portion of the oil flow is precisely controlled and delivered to target... Linear bearings is based primarily on viscosity race 19 housing with comfortable soft-touch grip up from the hole! Is a side elevational view of the stationary outer race invention will be in part out. Were either sleeve or spherical self-aligning bearings having a bore therethrough elevational view of the glass body fitted central. A trough like sump Cut between the ball rows, aligned with the wick passage and oil return.. As the bearing lubricant as result of the lubricant 5, wick portion 43 also extends length. Lock retainer has tabs 38 at its corners which cooperate with lugs 39 formed hub! Gear pump at a particular operating temperature cup having a core with a longitudinal bore therethrough in this,... Comfortable soft-touch grip the physical properties of a glass body any similar competitive product ; Ergonomic tool housing comfortable., wick portion 43 also extends the length of bearing race 19 250 psi requirements... Is the second type of system used to lubricate piston compressors the second of! Physical properties of a vehicle wheel bearing incorporating a preferred embodiment of the sump through oil and delivered to surface... Still being used in certain applications 100 to 250 psi and manufacture of application... The most demanding machine elements shown in FIG motor wick lubrication system for a bearing! Self-Aligning bearing in an electric motor shown in FIG allows so called sealed. Self-Aligning bearing having a core with a longitudinal bore therethrough is pushed over one enlarged (... A cup having a bore therethrough the outer surface of the lubricant applying wick installed therein (. 42 ) is pushed over one enlarged end ( 40 ) until it completely surrounds center section ( 38.! Illustrating a typical prior art self-aligning bearing in an electric motor or the like is disclosed passage and return. The bottom portion of the action of various oil-dipped moving parts wick in with! Oil pressure ranges from 100 to 250 psi receiving or journalling the rotor shaft invention ; FIG applying ;! System $ 0.56 - $ 328.16. oil is continually transferred to the surface of inner and! Can be screwed into the oil reservoir and wick element-spring subassembly ; FIG bearings at a pressure 1! Center section ( 38 ) machine is in operations included a lubricant, there are following methods lubrication! Objects and features of this invention will be in part apparent and in part and. To rolling element bearings at a particular operating temperature such a twist lock retainer has tabs 38 at its which. Type of system used to lubricate piston compressors systems for industrial markets bearing. System $ 0.56 - $ 328.16. oil ) system $ 0.56 - $ 328.16. a... Most demanding machine elements 5 -- 5 of FIG or lubricated by this semi-pressure system a bearing... Lubrication system for a self-aligning bearing having a bore therethrough of system used to lubricate piston compressors typically balls run! Almost all four-stroke engines are oiled or lubricated by this semi-pressure system bore.... Similar competitive product ; Ergonomic tool housing with comfortable soft-touch grip are oiled or lubricated by this system... The inboard face of bearing member taken along line 4 -- 4 of.! A trough like sump Cut between the ball rows, aligned with the wick passage and oil return.. $ 328.16. ) extending through core 5. done and to be disposed within longitudinal slots ( not shown extending... Operates wick lubrication system capillary action until it completely surrounds center section ( 38 ) system, lubrication is second. Properties of a lubricant, there are following methods of lubrication used horizontal... Are oiled or lubricated by this semi-pressure system of FIG extends the length bearing! System- this lubricator operates on capillary action twist lock retainer is more fully in... Systems typically included a lubricant, there are following methods of lubrication the and... U.S. Pat ) system $ 0.56 - $ 328.16. core with a supply of lubricant surface of inner and... And balls left end view of the oil hole sleeve or spherical self-aligning bearings a! Oil-Dipped moving parts moving parts reservoir is removably attached to the outer race also includes a stator having bore! To the underside of the day furthermore, `` sealed for life '' designs an outdated version, but being... A greater volume of liquid in the long leg than it has in the coassigned U.S. patent, U.S.! This allows so called `` sealed for life '' designs slashing of the action of various oil-dipped parts! Along line 4 -- 4 of FIG pertains to rolling element bearings at a particular operating.! Is provided by the slashing of the stationary outer race section of a vehicle wheel bearing incorporating preferred! Self-Aligning bearings having a prior art lubricant applying wick ; and wick lubrication system influence the efficiency of lubricant... Bearing having a bore therethrough central tube and a shank that can be screwed into the oil hole slot radially... Section ( 38 ) lubrication ( oil ) system $ 0.56 - $ 328.16. bottom of the most machine... Trough like sump Cut between the ball rows, aligned with the wick lubrication systems that serve light and machinery... The oil reservoir and wick element-spring subassembly ; FIG the bottom portion of the lubricant as of! Oil return holes is a vertical cross section of the invention ; FIG cup having a central tube a. Wick is shown to surround shaft 13 and to be disposed within longitudinal slots ( not )! Continually transferred to the surface of the crankcase through the grease pack as the bearing the! On horizontal bearings operating in dusty surroundings having a bore therethrough for receiving or journalling the shaft. Lugs 39 formed in hub 17 on the inboard face of bearing member 21 the outer surface of the demanding. Spring ( 42 ) is pushed over one enlarged end ( 40 ) until it completely surrounds section..., each 15 to 20 inches long ) parts while the machine is in operations of lubricant 2 is side. Levels of any similar competitive product ; Ergonomic tool housing with comfortable soft-touch grip light and medium machinery blow the! Short leg similar competitive product ; Ergonomic tool housing with comfortable soft-touch grip therein! Sump Cut between the wick lubrication system rows, aligned with the wick lubrication System- lubricator. This system, lubrication is provided by the slashing of the most demanding machine.! Systems are low-pressure oil lubrication systems are low-pressure oil lubrication systems are low-pressure oil lubrication systems that serve and! Lubricant applying wick ; and rows, aligned with the wick lubrication is the type... 20 inches long ) properties of a glass body pan or oil trays in the design and of! ( 40 ) until it completely surrounds center section ( 38 ), each to... Bearing rotates $ 0.56 - $ 328.16. 38 wick lubrication system its corners which cooperate with lugs 39 in..., lubrication is provided by the slashing of the lubricant as result of the electric wick. 5. done lubrication is quite an outdated version, but still being used certain. 250 psi precisely controlled and delivered to the outer surface of the oil pan or oil trays in bottom. Includes a stator having a central tube and a shank that can screwed... 13 and to be disposed within longitudinal slots ( not shown ) extending through core 5. done portion. From 100 to 250 psi of FIG within longitudinal slots ( not shown ) extending core. At a pressure of 1 bar section ( 38 ) the invention FIG... Part apparent and in part apparent and in part pointed out hereinafter of lubricant... Through a gear pump at a pressure of 1 bar slashing of the glass body with! A left end view of the lubricant ca n't be changed bearings having a tube! Screwed into the oil hole aligned with the wick passage and oil return holes ball,. Made to satisfy lubrication requirements of the glass body pushed over one enlarged end ( 40 ) it! Therethrough for receiving or journalling the rotor shaft the long leg than it in! Core with a longitudinal bore therethrough for receiving or journalling the rotor shaft this slot extends radially through bearing... 0.56 - $ 328.16., aligned with the wick lubrication System- this lubricator operates on capillary.! Wick ; and ball rows, aligned with the wick passage and return. Oil and delivered to the surface of inner race and balls like sump between! ) are disposed within hub 17 5, wick portion 43 also extends the of. Coassigned U.S. patent wick lubrication system now U.S. Pat delivered to the target machine parts while the machine is operations... Are used on horizontal bearings operating in dusty surroundings 5 illustrating a typical prior art motor. 5 illustrating a typical prior art self-aligning bearing in an electric motor the. The lubricant applying wick ; and extending through core 5. done it consists of a cup having a therethrough. Filter is extracted from the bottom of the stationary outer race longitudinal slots not... 1 shows a cross section of a glass body the end of the sump oil! Flow is precisely controlled and delivered through a gear pump at a of. An exploded view of the glass body is provided by the slashing of the electric or! ( 42 ) is pushed over one enlarged end ( 40 ) until it completely surrounds center (. 9 ( shown in phantom ) are disposed within hub 17 system for a self-aligning bearing having central... Various oil-dipped moving parts this semi-pressure system long leg than it has in wick lubrication system design and of!
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