ES2400097A1 - Electric motor for heat exchanger machines. (Machine-translation by Google Translate, not legally binding) - Google Patents

Electric motor for heat exchanger machines. (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2400097A1
ES2400097A1 ES201031470A ES201031470A ES2400097A1 ES 2400097 A1 ES2400097 A1 ES 2400097A1 ES 201031470 A ES201031470 A ES 201031470A ES 201031470 A ES201031470 A ES 201031470A ES 2400097 A1 ES2400097 A1 ES 2400097A1
Authority
ES
Spain
Prior art keywords
bearing
housing
ring
cover
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES201031470A
Other languages
Spanish (es)
Other versions
ES2400097B1 (en
Inventor
Marta GOLDEROS ROMERO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Golderos S A
GOLDEROS SA
Original Assignee
Golderos S A
GOLDEROS SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Golderos S A, GOLDEROS SA filed Critical Golderos S A
Priority to ES201031470A priority Critical patent/ES2400097B1/en
Publication of ES2400097A1 publication Critical patent/ES2400097A1/en
Application granted granted Critical
Publication of ES2400097B1 publication Critical patent/ES2400097B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor

Abstract

Electric motor for heat exchange machines, comprising a casing composed of a cup 1 and a closing cover 2, which are carriers of an upper bearing 4 and a lower bearing 5 for the axis 6 of the motor. The cover 2 forms a housing for the lower bearing 5, on which a ring that surrounds the bearing 5 is fixed. The ring 14 and the wall 12 of the housing 10 form facing seats between which a 10 O-ring 25 is arranged, which remains internally compressed against the bearing 5. The cover 2 is crossed by a tubular probe (28).

Description

Electric motor for heat exchange machines.

Field of the Invention

The present invention relates to an electric motor for heat exchange machines, especially coolant cooling machines, quiet operation and protected from the outside environment by a waterproof and stainless steel housing, which makes it especially suitable for installation in aggressive environments, and can also be coupled both outside and inside of heat exchange machines. The engine of the invention is applicable, for example, to water-cooling machines, provided with ice bank or low temperature fluids with caloric regulation by means of brine

or antifreeze such as glycol.

The electric motor of the invention is indicated to drive a hydraulic pump and a propeller responsible for removing a liquid, elements normally used in heat exchange machines, in which a cold fluid is stirred and pumped remotely to transmit its caloric differential to products We want to cool to a preset temperature, as is the case with certain beverages such as beer, juices, cola, etc.

The motor of the invention is equally applicable in heat exchange machines used to cool spot welding equipment, plastic injectors, high vacuum pumps, heat extraction and regulation machines on farms and in all cases where a fluid is agitated and remotely pumped to exchange heat from a cold zone to a hotter one or vice versa and thus extract its caloric differential.

More specifically, the motor of the invention is of the type that is housed in a protective housing composed of a bowl and a closing lid, fixed to each other, whose cover has an orifice for the passage of the shaft and conforms internally, around said hole , a cradle for a lower bearing between which and an upper bearing coupled at the bottom of the bowl, the motor shaft is mounted, also carrying said bowl internally fixed to the engine stator.

Background of the invention

Electric motors of the type indicated to drive pumps and an agitator with different formats and systems, air-cooled and water-cooled, are already known and manufactured.

In general, the electric motor and pump assemblies used in heat exchangers for the exposed purpose have their main origin in the taladrina pumps, used in the machine tools, having modifications that allow them to be located inside the chillers, very close to the water used as a heat exchanger liquid, which is why there is great humidity as a whole, causing premature deterioration of the motor, short circuits, breakage of bearings, electrical shunts and, in general, vibrations, noise, etc.

In the same way, since these engines are the result of adaptations of the previous ones, their assembly, design and materials used are not the most suitable for being subjected to corrosive environments, with humidity saturation or high temperature variation.

Description of the invention

The object of the present invention is to eliminate the aforementioned drawbacks by means of an engine with an innovative design, in which the engine components are housed in a housing that offers adequate protection against the actions and effects of the medium in which it is installed, humidity and corrosive environments. The engine of the invention is designed for work in both vertical installation, mainly, as in any other position.

The engine of the invention is of the type set forth above, which comprises a protective housing composed of a bowl and a cover, lid and bowl that incorporate means of mutual fixation. The cover has a hole around which a lower bearing is arranged internally. For its part, the bowl has a top bearing in the bottom between which the motor shaft is mounted and the bottom bearing.

According to the invention, the housing cover internally forms, around the hole in which the lower bearing is arranged, a housing in which said bearing is mounted and on which a ring is fixed which is fixed to the cover by screws and surrounds the bearing. The aforementioned housing and ring make up, around the bearing, seats that face each other and between which an O-ring sized to fit around the bearing is arranged. This O-ring is compressed between the seats mentioned, by tightening the screws fixing the ring to the cover, being partially deformed in radial direction to be pressed against the lateral surface of the bearing. The ring has, around the support seat on the O-ring, a wall that tightly surrounds the seat in front of the ring and the O-ring disposed between both seats, thus defining a peripheral stop that prevents the expansion of the seal outwards, so that its deformation, by tightening the screws fixing the ring to the cover, can only take place in a radial direction inwards, thus pressing against the bearing.

According to another feature of the invention, the housing wall on which the lower bearing is mounted has radial passages defining communication channels between the interior and exterior of said housing.

Preferably the cover of the housing is composed of a flat plate, for example of plastic material, which has a surface facing the bowl of a wall that defines a circular contour coinciding with the inside of said bowl. Around this wall a gasket is arranged against which the free edge of the bowl wall rests, to achieve a tight fit between bowl and lid.

The housing for the lower bearing can be constituted by a wall that protrudes from the cover, by the surface facing the bowl, wall that surrounds the passage hole of the motor shaft and defines an internal seat for said bearing and an external seat facing to the seat of the ring for the arrangement between both of the O-ring.

The housing bowl will preferably be made of stainless steel, in one piece and inside it the engine stator and the upper bearing, as indicated above, are mounted, which is coupled in a flexible clamping device that It adapts to the bowl by means of a drawing that presents in the bottom, being strongly subject, but without rigidity, thus avoiding the transmission of noise and vibrations.

Coupled with the housing of the housing are the cooling means for the engine, which may be constituted by a cooling system by water recirculation tab, which consists of a piece designed to be perfectly adapted to the outer contour of the housing and through which the cooling water circulates, or in an air cooling system, by means of a cooling impeller coupled to an extension of the shaft through the flexible clamping device of the upper bearing.

The lid can be fixed to the bowl by means of a set of elastic, bayonet type anti-lock fasteners and eyelashes, which are assembled by turning and make it possible to fix the lid and bowl without screws.

The radial passages or communication channels between the interior and exterior of the lower bearing housing allow direct communication between the interior and exterior environment of the housing, without passing through the bearing. Inside the motor housing there is a non-constant movement of air in and out, which depends on the pressure or depression caused by changes in temperature. The aforementioned channels force the flow of air, both at the exit and at the inside of the engine, to pass through them, preventing any flow of air from the humid environment caused by condensation from passing through the rolling areas of the bearing of water from the place where the engine is installed and from the one inside. All this allows to protect the bearing from moisture and corrosive environments in which the engine can work.

According to another characteristic of the invention, the cover is pierced by a probe composed of a capillary tube that communicates the interior and exterior of the housing and allows to drive and absorb the pressure changes that occur inside it.

The plate that forms the lid can be provided, from at least two of its opposite edges, with elastically deformable U-pins, which constitute quick-hook clips, for mounting the motor assembly on the machine where it is to be installed .

Brief description of the drawings

In the accompanying drawings, where an example of non-limiting embodiment of the electric motor of the invention is represented:

Figure 1 is a schematic diametral section of an electric motor constituted according to the invention, taken along the line I-I of Figure 5.

Figure 2 corresponds to detail A of Figure 1, on a larger scale.

Figure 3 corresponds to detail B of Figure 1, on a larger scale.

Figure 4 is a top floor of the plate that forms the cover of the housing.

Figure 5 is a top plan of the engine of Figure 1.

Figure 6 is a partial section of the coupling between bowl and housing cover, taken along the line VI-VI of Figure 5.

Figure 7 is a front elevation of the water cooling chamber, without the outer cover, attachable to the motor housing bowl.

Figure 8 is a cross section of the same chamber, taken along the line VIII-VIII of Figure 7.

Figure 9 is a top floor of the chamber of Figure 7.

Figure 10 is a view similar to Figure 1, showing a variant embodiment of the engine cooling means.

Detailed description of one embodiment

The features and advantages of the engine of the invention may be better understood with the following description, made with reference to the example shown in the accompanying drawings.

Figure 1 shows a motor constituted according to the invention, which comprises a housing composed of a stainless steel bowl 1 and a cover 2 of plastic material. The bowl 1 has the stator 3 of the motor mounted, as well as an upper bearing 4. The cover 2 has a hole inside which a lower bearing 5 is arranged between which and the upper bearing 4, the axis 6 of the engine.

The upper bearing 4, as can be seen better in the detail of Figure 3, is coupled in a flexible clamping device 7, as a cover of plastic material, which adapts to the bowl 1 by means of a drawing 8 formed in the bottom of the housing. In this way the upper bearing 4 is tightly fastened, but without rigidity, thus preventing the transmission of noise and vibration.

As for the lower bearing 5, as best seen in the detail of Figure 2, it is mounted in a housing 10 that forms the cover 2 internally, around the passage hole 11 of the motor shaft 6.

This housing may be defined by a wall 12 that protrudes from the inner surface of the cover 2 and defines an internal seat 13 for the bearing 5.

A ring 14 is arranged on the housing 10 which is fixed to the cover 2 for example by means of screws 15 and nuts

16. This ring 14 surrounds the bearing 5 and engages externally on the wall 12 of the housing 10 by facing steps 17 and 18 of said ring and wall. The ring 14 and the wall 12 further form facing seats 19 and 20 on which an O-ring 21 is provided which rests externally on the inner surface 26 of the ring 14.

With the constitution described, when assembling the assembly shown in Figure 2, the bearing 5 is inside the housing 10 and the O-ring is located between the seats 19 of the ring 14 and 20 of the wall 12. When tightening the screws 15 with their nuts 16, the o-ring 21 is compressed between the seats 19 and 20 and as it rests externally against the inner surface 26 of the ring 14, its deformation will take place radially inwards, pressing against the lateral surface of the bearing 5, thereby achieving a perfect immobilization of the bearing 5, with the absence of noise and vibration transmission to the housing.

The wall 20 defining the housing 10 for the bearing 5 has radial passages 27 that form channels through which the inside of the electric motor housing will be communicated with the passage hole 11 of the motor shaft 6 with the exterior of the same. Within the motor housing there is a non-constant movement of air in and out, which depends on the pressure or depression that occurs inside the housing due to temperature changes. The passages or channels 27 force the flow of air, both in and out of the motor housing, to pass through them, preventing them from passing through the bearing 5, thus preventing any flow of air from the external wet environment caused by the condensation of water from the place where the engine is installed, reach the inside of the bearing, thus preventing premature deterioration of the same.

Another element of the air circulation system between the inside and outside of the housing is constituted by a probe 28, figure 1, which crosses the lid 2 and consists of a capillary tube and serves to drive and absorb the pressure changes that They occur inside the housing.

The cover 2 can be constituted by a plastic wool plate, as shown in figures 4 to 6. This cover can have, by the surface facing the bowl 1, a wall 29 defining a circular contour coinciding with the inside of the bowl 1 of the housing. Around this wall an O-ring is arranged against which it supports the free edge of the bowl wall 1. The wall 29 can be reinforced by internal buttresses 31.

The fixing of the bowl 1 to the cover 2 can be carried out by means of flanges 32 folded outwards from the free edge of the wall of the bowl 1 and angled pins 33 projecting in a confrontable position from the inner surface of the lid 2, engaging between yes by turning, forming a bayonet type closure, which makes the use of screws unnecessary.

As can be seen in Figures 1 and 2, the output of the motor shaft through the cover 2 is externally protected by a mechanical seal or cable gland, formed for example by washers 34 and 35, respectively of plastic and steel material, sliding and friction resistant, which operate without lubrication pressed against the cover 2 by a small bellows 36 of flexible material, for example based on rubber.

Sealing of the lower bearing 5 is achieved by sealing it, so that it is protected from imbalances, while eliminating variations in internal pressures that deform the materials and cause deterioration and premature destruction of the motor, thus providing, in short, a completely waterproof housing that protects all the components of the electric motor and that being manufactured with materials that perfectly withstand humidity and corrosive environments, extend the life of the motor.

As best seen in Figure 1, the plate constituting the cover 2 of the housing can have, from at least 2 of its opposite edges, U-bent pins 37, elastically deformable, which constitute quick-engagement clips for the anchorage and fixation of the motor in the machine where it is going to mount. The plate can also be provided with oblong holes 38, figures 4 and 5 in which the dampers are introduced, if the position of the motor is vertical, or for fastening by screws, if the motor is installed in any other direction. Also the plate that forms the cover 2 has holes 39 to drive the pump outlet tubes. Finally, the cover 2 can have a cavity 40 for the junction box and condenser.

The cooling of the engine of the invention can be carried out by a water or air cooling system.

For the water cooling system, a chamber 41 is defined on the lateral surface of the bowl 1 of the housing which defines a passage 42 whose wall rests on the external surface of the bowl 1, with a sealed seal by means of the corresponding sealing gasket . This passage 42 communicates with the outside through an entrance and exit 43 for water. The chamber 41 defines, along the free edge of the wall of the passage 42, an arcuate contour 44, coinciding with that of the bowl 1. The chamber 41 is closed externally by a cover 44 and fixed to the bowl 1 by a bolt 45, all as shown in Figures 7 to 9. Through the channel 42 a low temperature fluid will be circulated that will be in direct contact with the outer surface of the bowl 1, thus acting as a cooling means of the Case.

As indicated, the fastening of the chamber 41 to the bowl 1 is carried out by means of a central bolt 45 that can be welded to the outer surface of the bowl 1 and keeps the chamber 41 attached to the motor. This connection can be intensified by means of a strip plate 46 which, also anchored to the bolt 45, is compressive, keeping the chamber 41 perfectly pressed against the outer surface of the bowl 1.

The air cooling system, as shown in Figure 10, is achieved by a vent impeller 47 coupled to an extension of the shaft 6 protruding from the flexible cover 7 which serves as a mounting means for the upper bearing 4. This system of Cooling is protected by a plastic housing 48 that adequately conducts the air flow for cooling the housing 1. In this way it is possible to cool the engine both by water and by air, without altering its structure.

With the described constitution, a small engine is achieved, made of resistant and watertight materials, allowing accidental or intentional stops of the engine, by having total protection against water condensation.

Claims (8)

1.- Electric motor for heat exchange machines, which comprises a housing composed of a bowl and a closing cover provided with means of mutual fixation, whose bowl has a top bearing mounted on the bottom for the motor shaft, and whose cover It has an orifice for the passage of the motor shaft, in which a lower bearing for said axis is mounted, characterized in that the aforementioned cover forms, inside the axis orifice of passage, a housing in which the lower bearing is mounted and on which a ring is fixed that is fixed to the cover by means of screws and surrounds the bearing, whose housing and ring form, around the bearing, facing seats between which an O-ring is arranged, adjusted on the bearing, whose gasket is compressed between the seats and the lateral surface of the bearing, by tightening the ring fixing screws; and because the wall of the housing in which the lower bearing is mounted has radial passages that define communication channels between the interior and exterior of said housing.
2. Motor according to claim 1, characterized in that the aforementioned cover is constituted by a flat plate which has, by the surface facing the bowl, a wall defining a circular contour coinciding with the inside of said bowl, around which The wall is provided with an elastic seal against which the free edge of the bowl wall rests.
3. Motor according to claim 1, characterized in that the housing for the lower bearing is constituted by a wall protruding from the cover, by the surface facing the bowl and surrounding the passage hole of the motor shaft, whose wall defines a internal seat for said bearing and an external seat facing the ring seat.
4. Motor according to claim 1, characterized in that the said ring has, around the support seat on the O-ring, a wall that tightly surrounds the seat facing the ring and the O-ring disposed between both seats and defines a peripheral stop against the expansion of the O-ring outwards.
5. Motor according to claim 2, characterized in that the plate that forms the lid has, from at least two of its opposite edges, U-shaped pins, elastically deformable, which constitute quick-engagement clips for mounting and anchoring the set.
6. Motor according to claim 1, characterized in that the cover is pierced by a probe composed of a capillary tube, which communicates the interior and exterior of the housing.
7. Motor according to claims 1 and 2, characterized in that the wall of the housing and the plate have lugs and ribs facing each other, which determine a bayonet type coupling.
SPANISH OFFICE OF THE PATENTS AND BRAND
Application no .: 201031470
SPAIN
Date of submission of the application: 05.10.2010
Priority Date:
REPORT ON THE STATE OF THE TECHNIQUE
51 Int. Cl.: H02K5 / 16 (2006.01)
RELEVANT DOCUMENTS
Category
56 Documents cited Claims Affected
Y
US 2345952 A (SMITH FLOYD T) 04.04.1944, page 1, column 2, line 28 - page 2, column 1, line 72; figures. 1-2.4-7
Y
DE 2746071 A1 (MONFORTS FA A) 19.04.1979, page 6, line 25 - page 8, line 13. 1-2.4-7
TO
3
TO
US 3095248 A (KAURI LINDGREN NILS) 25.06.1963, the whole document. 1.3-4
TO
US 1980580 A (GILMORE VINCENT J) 13.11.1934, the whole document. 1.3-4
TO
US 3214224 A (LASH JOSEPH C) 26.10.1965, the entire document. one
TO
GB 2071427 A (BOSCH GMBH ROBERT) 16.09.1981, the whole document. one
Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application
This report has been prepared • for all claims • for claims no:
Date of realization of the report 21.03.2013
Examiner J. Galán Mas Page 1/4
REPORT OF THE STATE OF THE TECHNIQUE
Application number: 201031470
Minimum documentation searched (classification system followed by classification symbols) H02K Electronic databases consulted during the search (name of the database and, if possible, terms of
search used) INVENES, EPODOC
State of the Art Report Page 2/4
 WRITTEN OPINION
Application number: 201031470
Date of Written Opinion: 21.03.2013
Statement
Novelty (Art. 6.1 LP 11/1986)
Claims Claims 1-7 IF NOT
Inventive activity (Art. 8.1 LP11 / 1986)
Claims 3 Claims 1-2,4-7 IF NOT
The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).
 Opinion Base.-
This opinion has been made on the basis of the patent application as published.
State of the Art Report Page 3/4
 WRITTEN OPINION
Application number: 201031470
 1. Documents considered.-
The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.
Document
Publication or Identification Number publication date
D01
US 2345952 A (SMITH FLOYD T) 04.04.1944
D02
DE 2746071 A1 (MONFORTS FA A) 04/19/1979
D03
US 3095248 A (KAURI LINDGREN NILS) 06/25/1963
D04
US 1980580 A (GILMORE VINCENT J) 13.11.1934
D05
US 3214224 A (LASH JOSEPH C) 10/26/1965
D06
GB 2071427 A (BOSCH GMBH ROBERT) 16.09.1981
 2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement
Document D01 describes an electric motor comprising a housing, formed by the covers (2) and (3), with a closing cover (4) with means (8) for fixing to the housing, where the cover (3) carries mounted a bearing (14) for the motor shaft, and whose cover (4) has a hole for the passage of the motor shaft, in which a bearing (19) is mounted for said shaft, where the cover (4) conforms internally, around the shaft passage hole, a housing in which the bearing (19) is mounted, whose wall has radial passages (13) defining communication channels between the interior and exterior of said housing. Furthermore, it is considered that the motor described in document D01 is capable of being used in heat exchange machines and that, in a suitable position of the motor, said motor meets the "lower" and "upper" characteristics of the bearings.
Therefore, the main difference between the invention described in document D01 is that it does not have a ring fixed to the cover and surrounding the bearing. However, similar arrangements for the assembly of bearings are known in the state of the art, such as that described in document D02 in which a bearing (1) shown in an orifice of a frame (4) is shown to which a plate (2), circling the bearing (1), so that by tightening the screws (3) an o-ring (13) is compressed, arranged between the frame seats (4) and the plate (2) and of a wall that acts as a peripheral stop for expansion of the joint (13), against the lateral surface of the bearing (1). Other similar provisions can be seen in documents D03 and D04.
Consequently, it is considered that it would be evident for a person skilled in the art to arrive at the invention defined in claims 1 and 4, so that the object of said claims does not meet the requirement of inventive activity according to article 8 of Law 11/1986 .
Likewise, the characteristics of claims 2, 5, 6 and 7 are considered common elements in this technical field, each with its known technical effect, independent of the essential elements of the invention, so said claims do not imply inventive activity according to the Article 8 of Law 11/1986.
With respect to the characteristics of claim 3, the cited documents do not show any embodiment in which the bearing housing is constituted by a wall that circles the passage hole of the shaft and defines an internal seat for said bearing and an external seat faced with a ring seat, and it is not considered that from these cited documents these specific characteristics are reached. To the extent that said difference may have a technical effect with respect to the state of the art, it is considered that claim 3 implies inventive activity according to article 8 of Law 11/1986.
State of the Art Report Page 4/4
ES201031470A 2010-10-05 2010-10-05 Electric motor for heat exchanging machines. Active ES2400097B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES201031470A ES2400097B1 (en) 2010-10-05 2010-10-05 Electric motor for heat exchanging machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201031470A ES2400097B1 (en) 2010-10-05 2010-10-05 Electric motor for heat exchanging machines.

Publications (2)

Publication Number Publication Date
ES2400097A1 true ES2400097A1 (en) 2013-04-05
ES2400097B1 ES2400097B1 (en) 2014-04-03

Family

ID=47890748

Family Applications (1)

Application Number Title Priority Date Filing Date
ES201031470A Active ES2400097B1 (en) 2010-10-05 2010-10-05 Electric motor for heat exchanging machines.

Country Status (1)

Country Link
ES (1) ES2400097B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980580A (en) * 1933-05-13 1934-11-13 Laval Separator Co De Guide bearing for spindles of centrifuges
US2345952A (en) * 1942-12-16 1944-04-04 Singer Mfg Co Bearing construction
US3095248A (en) * 1960-01-09 1963-06-25 Electrolux Ab Bearing mount for rotatable machines
US3214224A (en) * 1963-04-17 1965-10-26 Trw Inc Bearing assembly
DE2746071A1 (en) * 1977-10-13 1979-04-19 Monforts Fa A Axial mounting for radial ball bearing in housing - has wire circlip engaged in grooves between outer race and housing
GB2071427A (en) * 1980-02-07 1981-09-16 Bosch Gmbh Robert An Electrical Machine, Especially an Alternator for Motor Vehicles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980580A (en) * 1933-05-13 1934-11-13 Laval Separator Co De Guide bearing for spindles of centrifuges
US2345952A (en) * 1942-12-16 1944-04-04 Singer Mfg Co Bearing construction
US3095248A (en) * 1960-01-09 1963-06-25 Electrolux Ab Bearing mount for rotatable machines
US3214224A (en) * 1963-04-17 1965-10-26 Trw Inc Bearing assembly
DE2746071A1 (en) * 1977-10-13 1979-04-19 Monforts Fa A Axial mounting for radial ball bearing in housing - has wire circlip engaged in grooves between outer race and housing
GB2071427A (en) * 1980-02-07 1981-09-16 Bosch Gmbh Robert An Electrical Machine, Especially an Alternator for Motor Vehicles

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