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. A filter/lubricator ensures efficiency and reduces wear on the pump. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. C. meter lubricant. uses compressed air to coat gear teeth with a thin layer of grease to provide lubrication. 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. The one shown in Fig. Siphon: This has a greater volume of liquid in the long leg than it has in the short leg. Which type of lubrication system is used in two-stroke engine? 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. 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. What is mist lubrication system? Frequent lubrication helps prevent premature gear failure and helps . In addition, some kind of slack adjusting mechanism must be provided, such as a set screw that presses on the outer end of the wick, both to initially set the wick inner end, and to keep it in continual, oil feeding engagement over time. Step 3: Locate Lubrication Ports. The oil after lubrication is returned to reservoir either directly or through filters. 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. 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. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. Further, it will be noted in FIG. 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. Wick lubrication: C. Ring lubrication: D. All are correct View Answer Workspace Report Discuss in Forum. 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. 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. Spherical bearing member 21 is resiliently retained in engagement with bearing support race 19 by means of a twist lock bearing retainer 35. Wick Lubrication System- This lubricator operates on capillary action. 1. Check that the sump tanks are ready for operation. 2. Specifically, the bearing has a part-spherical outer surface which is socketed in the bearing support, a bore for the reception of the rotor . 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. Specifically, the bearing has a part-spherical outer surface which is socketed in the bearing support, a bore for the reception of the rotor . 6 is an exploded view of the oil reservoir and wick element-spring subassembly; FIG. Further, it will be noted in FIG. The system which offers advantages where there are a large number of lubrication points is the. 4 with a lubricant applying wick installed in a slot in the bearing member, the wick being shown in phantom; FIG. Oil Cup ii. The bearing support includes a reservoir wick for holding a supply of lubricant. Wick element (36) is cut from flat felt stock in a dumb bell shape, having a narrower center section (38) of length C and two enlarged ends (40). Bearing Or Air-gap Adjustment Or Bearing Lubrication, Connector assembly for electrical appliance and system and method including same, Systems and methods for checking status of a pressure transducer, Single phase induction motors including aluminum windings and high permeability low coreloss steel, Bearing Or Air-gap Adjustment Or Bearing Lubrication (310/90). 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. Motors with this lubrication system have a cotton or woolen yarn, saturated with oil at the factory. 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 . 2 is a sectional view taken along the line 2--2 of FIG. Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. 5 shows the spring fully assembled to the wick element; FIG. Up to 50% savings in lubricant costs due to . 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. ;ASSIGNOR:BURTON, STEPHEN J.;REEL/FRAME:003943/0592, Free format text: 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. Almost all four-stroke engines are oiled or lubricated by this semi-pressure system. Country of Origin USA (subject to change) Product Description. Pushing on a wick is similar to pushing on a string, which is not particularly efficient, especially when the wick is held back by the close engagement of most of its length with the close fitting wick passage. Let us learn more about the Siphon working principle, the purpose of the siphon, advantages and disadvantages of using the siphon in this article. 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. 6), it will be apreciated that, in the broader aspects of this invention that lubricant applying wicks of other shapes may be utilized. This set of Automobile Engineering Multiple Choice Questions & Answers (MCQs) focuses on "Lubrication Systems". 5, wick portion 43 also extends the length of bearing member 21. 2; FIG. Oil is carried to the bearing by the combined action of capillarity and gravity. 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. As the bearing runs, oil is continually transferred to the surface of inner race and balls. 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. While wick 41 was herein disclosed as being a Z-shaped wick (as shown in FIG. As best shown in FIG. Corresponding reference characters indicate corresponding parts throughout the several view of the drawings. Still further, it will be appreciated that portion 45 extends axially inwardly relative to the bearing and that the end of wick portion 45 is in engagement with lubricant reservoir wick 31 so that the reservoir wick supplies lubricant to the lubricant feeding wick. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. . Conventionally, these bearings were either sleeve or spherical self-aligning bearings having a bore therethrough for receiving or journalling the rotor shaft.
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