KR20140115080A - Bearing and roller using the same - Google Patents

Bearing and roller using the same Download PDF

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Publication number
KR20140115080A
KR20140115080A KR1020130029693A KR20130029693A KR20140115080A KR 20140115080 A KR20140115080 A KR 20140115080A KR 1020130029693 A KR1020130029693 A KR 1020130029693A KR 20130029693 A KR20130029693 A KR 20130029693A KR 20140115080 A KR20140115080 A KR 20140115080A
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KR
South Korea
Prior art keywords
elastic body
outer ring
bearing
inner ring
ring
Prior art date
Application number
KR1020130029693A
Other languages
Korean (ko)
Inventor
이세영
김동훈
전기수
Original Assignee
주식회사 한일하이테크
전기수
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 주식회사 한일하이테크, 전기수 filed Critical 주식회사 한일하이테크
Priority to KR1020130029693A priority Critical patent/KR20140115080A/en
Publication of KR20140115080A publication Critical patent/KR20140115080A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/62—Selection of substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/10—Elastomers; Rubbers
    • F16C2208/12—Polyurethan [PU]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The present invention relates to a bearing and a roller, including an inner ring, an outer ring disposed outside the inner ring, a plurality of rolling members provided between the inner ring and the outer ring, a cage for preventing the rolling member from separating from the rolling member, A roller including an inner ring, an outer ring, a rolling member, and a cage in the same manner as the bearing, wherein a cap made of an elastic body is detachably coupled to the outer side of the outer ring, A first elastic body formed on an outer circumferential surface of the outer ring, and a second elastic body formed on an outer circumferential surface of the first elastic body, the first elastic body being exposed when the second elastic body is worn, And rollers.

Description

Bearing and roller using the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing and a roller, and more particularly, to a bearing capable of visually confirming a replacement cycle and a roller using the same.

Generally, a bearing means a mechanical element that rotates or reciprocates in various mechanical devices and supports the shaft in a fixed position to be freely rotated.

1 and 2, the bearing 10 includes an inner ring 11 coupled to a shaft (not shown), an outer ring 12 disposed on the outer side of the inner ring 11 And a cage 14 (Retainer) for retaining the spacing between the rolling elements 13 and the rolling elements 13, which are provided between the inner ring 11 and the outer ring 12, do.

In this case, the rolling member 13 may have a ball shape or a needle shape shown in FIG. 2 in addition to the roller shape shown in FIG. 1, and the inner ring 11 ) And the inner circumferential surface of the outer ring (12) so as to revolve and rotate about the inner ring (11) when the shaft rotates.

The bearings constructed as described above can be used for various purposes. For example, in the manufacturing process of the display device, bearings are installed on both sides of the conveyor to guide the glass substrate conveyed along the conveyor. In this case, in order to prevent breakage of the conveyed glass substrate, Urethane 15 is coated on the outer ring 12 of the outer ring 10. When the urethane 15, which is an elastic material, is coated on the outer ring 12 of the bearing 10, the elasticity of the frictional portion between the bearing and the glass substrate is secured to reduce the breakage rate of the glass substrate, The noise reduction effect can be obtained.

On the other hand, in the above-described conveyor apparatus, a roller may be used instead of a bearing. The roller is composed of an inner ring, a rolling member, a cage and an outer ring similar to a bearing, and has a structure in which a cap is detachably coupled to the outer side of the outer ring. In this case, the cap is made of urethane in order to prevent breakage of a carrier such as a glass substrate and minimize noise generated during transportation.

However, since urethane has excellent mechanical strength and weak chemical resistance, when it comes into contact with a chemically treated glass substrate, it has to be continuously worn out over time. Therefore, it is necessary to periodically replace worn bearings or rollers, Transfer can be expected. However, in conventional bearings and rollers, since the urethane is made of only one color such as translucent ivory color, it is very difficult to confirm the replacement cycle of the bearings and the rollers.

Therefore, conventionally, the operator has visually checked the wear state of the urethane on the basis of his experience, determined the replacement cycle of the bearings and the rollers in advance, and replaced all bearings and rollers of the entire section regardless of the degree of wear of the urethane. Therefore, according to the related art, it is not possible to objectively predict the life expectancy of the bearings and the rollers, and there is a problem that the replacement of the bearings and the rollers necessitates an excessive time and cost for maintenance.

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the problems of the prior art described above, and an object of the present invention is to provide a bearing and a roller which can visually confirm the state of abrasion of urethane and easily predict a replacement cycle.

As means for solving the above-mentioned technical problem,

A cage for preventing the rolling member from separating from the cage; and an elastic body formed on an outer circumferential surface of the outer ring, The elastic body includes a first elastic body formed on an outer peripheral surface of the outer ring and a second elastic body formed on an outer peripheral surface of the first elastic body so that the first elastic body is exposed when the second elastic body is worn Thereby enabling confirmation of the replacement cycle.

In this case, the elastic body may be urethane.

The first elastic body and the second elastic body may have different colors.

In addition, a stepped portion bent inward is formed on the outer circumferential surface of the outer ring, and the first elastic body is formed on the stepped portion, so that the first elastic body can be prevented from being separated.

According to another aspect of the present invention, there is provided an internal combustion engine comprising an inner ring, an outer ring disposed on the outer side of the inner ring, a plurality of rolling members provided between the inner ring and the outer ring, a cage for preventing the rolling member from coming off, Wherein the cap includes a first elastic body coupled to an outer side of the outer ring and a second elastic body formed on an outer peripheral surface of the first elastic body so that when the second elastic body is worn, So that the replacement cycle can be confirmed.

According to the present invention, the urethane formed on the outermost side of the bearing and the roller is constituted by the double structure of the inner urethane and the outer urethane having different colors, so that the inner urethane is exposed when the outer urethane is worn, .

In addition, since only the bearings exposed to the inner urethane among the many bearings and rollers installed in the machinery and the like, and only the cap of the roller can be partially replaced, maintenance and repair costs and time can be saved, thereby improving the productivity of the equipment .

1 is a perspective view of a bearing according to the prior art,
Figures 2 and 3 are vertical sectional views of bearings according to prior art,
4 is a perspective view illustrating a cross-sectional structure of a bearing according to a preferred embodiment of the present invention,
5A to 5F are vertical cross-sectional views sequentially illustrating a manufacturing process of a bearing according to a preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention, parts not related to the description are omitted, and similar parts are denoted by similar reference numerals throughout the specification.

4 is a perspective view illustrating a cross-sectional structure of a bearing according to a preferred embodiment of the present invention.

4, a bearing 100 according to a preferred embodiment of the present invention includes an inner ring 110, an outer ring 120, a rolling member 130, a cage 140, and an elastic body 150 .

The inner ring 110 has a cylindrical structure by being coupled with a shaft (not shown) of a mechanical device or the like. In this case, a large number of seating grooves 110a for mounting the rolling elements 130 are formed on the outer circumferential surface of the inner ring 110 at regular intervals. The shape, number, and spacing of the seating grooves 110a are, It can be adjusted appropriately according to the type and shape.

The outer ring 120 is formed in a cylindrical shape and disposed on the outer side of the inner ring 110. In this case, a large number of seating grooves 120a for mounting the rolling elements 130 are formed on the inner circumferential surface of the outer ring 120 at regular intervals. When the seating groove 120a of the outer ring 120 is seated on the seating It is needless to say that they correspond to the groove 110a.

The rolling body 130 is provided for the free rotation of the shaft and is provided between the inner ring 110 and the outer ring 120 and more specifically between the seating groove 110a of the inner ring 110 and the seating groove 120a of the outer ring 120 Respectively. In this regard, for the sake of convenience of explanation, only the rolling member 130 is shown in the form of a ball, but it is to be understood that the rolling member 130 of the present invention is not limited thereto, but may be a roller or a needle. That is, the internal structure of the bearing in the present invention is not particularly limited.

The cage 140 is formed between the inner ring 110 and the outer ring 120 to prevent the rolling member 130 from being separated from the rolling member 130 to bind the rolling member 130.

The elastic body 150 is formed on the outer circumferential surface of the outer ring 120. The present invention is characterized in that the elastic body 150 has a double structure.

Specifically, the elastic body 150 is composed of a first elastic body 151 formed on the outer peripheral surface of the outer ring 120 and a second elastic body 152 formed on the outer peripheral surface of the first elastic body 151. Accordingly, if the second elastic body 152 is worn out due to the continuous use of the bearing 100 and the first elastic body 151 is exposed, it can be determined that the life of the bearing 100 has expired, The replacement cycle can be confirmed objectively.

In this case, it is preferable that the colors of the first elastic body 151 and the second elastic body 152 are different from each other in order to confirm the replacement period of the bearing 100 more clearly. For example, if the first elastic body 151 and the second elastic body 152 are made of a complementary color, the second elastic body 152 is visually more prominent when the first elastic body 151 is exposed and exposed, It is possible to more precisely and easily predict the replacement cycle of the battery 100. [

Meanwhile, the first elastic body 151 and the second elastic body 152 described above are made of a urethane material and can be respectively formed in a coating manner.

In this case, the first elastic body 151 is formed on the outer peripheral surface of the outer ring 120 as described above. When the first elastic body 151 is coated over the entire outer peripheral surface of the outer ring 120, The first elastic body 151 may be released. In order to prevent the first elastic body 151 from being separated from the first elastic body 151, a stepped portion 120b bent inward is formed on the outer peripheral surface of the outer ring 120, and a first elastic body 151 is formed on the stepped portion 120b .

The first elastic body 151 can be effectively prevented from being separated from the bearing 100 because the sliding of the first elastic body 151 in the width direction of the bearing 100 is limited by the step portion 120b. It is needless to say that the second elastic body 152 must be formed so as to cover the entire first elastic body 151 in order to realize the effect of preventing the first elastic body 151 from being separated.

The structure and operation of the bearing according to the preferred embodiment of the present invention have been described above. Hereinafter, a method of manufacturing a bearing according to a preferred embodiment of the present invention will be described with reference to the drawings.

5A to 5F are vertical cross-sectional views sequentially illustrating the manufacturing process of the bearing according to the preferred embodiment of the present invention.

First, the outer ring 120 is machined as shown in FIG. 5A. Specifically, the outer ring 120 of the cylindrical structure is prepared, the stepped portion 120b is formed on the outer peripheral surface of the outer ring 120 to prevent the first elastic body 151 from coming off, Respectively.

5B, a first elastic body 151 is formed on the outer circumferential surface of the outer ring 120 using a urethane material. When the molding is completed, the surface of the first elastic body 151 . The surface of the first elastic body 151 is polished on the upper surface and the side surface of the first elastic body 151 according to a predetermined standard. In this case, the second elastic body 152 to be formed later is prevented from being separated, It is preferable to roughly polish the surface so that it can be adhered.

5D, a second elastic body 152 is formed on the outer circumferential surface of the first elastic body 151 by using a urethane material. In this case, it is preferable that the first elastic body 151 and the second elastic body 152 are made of different colors, for example, complementary colors.

When the molding of the second elastic body 152 is completed, the upper surface and the side surface of the second elastic body 152 are polished according to a predetermined standard as shown in FIG. 5E. Finally, as shown in FIG. 5F, The inner ring 110, the rolling body 130, and the cage 140 are assembled, the entire process is completed.

The method of manufacturing the bearing according to the preferred embodiment of the present invention has been described above. The present invention will be described in detail with respect to the below-mentioned rollers which provide rollers in addition to the above-described bearings.

The roller has a structure including an inner ring, a rolling member, a cage and an outer ring similarly to the bearing shown in Fig. 4, wherein the cap is detachably coupled to the outer side of the outer ring. The cap is made of a double structure of an inner elastic body and an outer elastic body made of urethane, so that if the outer elastic body is worn and the inner elastic body is exposed, it can be judged that the life of the cap has been reached. In this case, the inner elastic body and the outer elastic body are constituted by colors of different colors, preferably complementary colors, so that the replacement cycle can be confirmed more clearly and easily. Meanwhile, the inner ring, the rolling member, the cage, and the outer ring have the same structure as that of the bearing described above, and detailed description thereof has been omitted.

The preferred embodiments of the present invention have been described in detail with reference to the drawings. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Therefore, the scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning, range, and equivalence of the claims are included in the scope of the present invention. .

100: Bearing 110: Inner ring
110a: seating groove 120: outer ring
120a; Seat seating groove 120b:
130: rolling member 140: cage
150: elastic body 151: first elastic body
152: second elastic body

Claims (5)

A bearing that includes an inner ring, an outer ring disposed on the outer side of the inner ring, a plurality of rolling members provided between the inner ring and the outer ring, a cage for preventing the rolling member from coming off, and an elastic body formed on an outer circumferential surface of the outer ring. In this case,
The elastic body includes a first elastic body formed on an outer circumferential surface of the outer ring and a second elastic body formed on an outer circumferential surface of the first elastic body so that when the second elastic body is worn, the first elastic body is exposed, Wherein the bearing is formed of a metal. The method according to claim 1,
Wherein the elastic body is urethane. 3. The method according to claim 1 or 2,
Wherein the first elastic body and the second elastic body are made of different colors. The method of claim 3,
Wherein a stepped portion bent inward is formed on an outer circumferential surface of the outer ring, and the first elastic body is recessed in the stepped portion to prevent the first elastic body from being separated. An internal combustion engine comprising: an inner ring; an outer ring disposed on the outer side of the inner ring; a plurality of rolling members provided between the inner ring and the outer ring; a cage for preventing the rolling member from departing; and a cap detachably coupled to the outer ring In the roller,
The cap includes a first elastic body coupled to an outer side of the outer ring and a second elastic body formed on an outer peripheral surface of the first elastic body. When the second elastic body is worn, the first elastic body is exposed and the replacement cycle can be confirmed And the roller.
KR1020130029693A 2013-03-20 2013-03-20 Bearing and roller using the same KR20140115080A (en)

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KR1020130029693A KR20140115080A (en) 2013-03-20 2013-03-20 Bearing and roller using the same

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Application Number Priority Date Filing Date Title
KR1020130029693A KR20140115080A (en) 2013-03-20 2013-03-20 Bearing and roller using the same

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KR20140115080A true KR20140115080A (en) 2014-09-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016069133A1 (en) * 2014-10-29 2016-05-06 Schaeffler Technologies AG & Co. KG Ball bearing with integrated bushing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016069133A1 (en) * 2014-10-29 2016-05-06 Schaeffler Technologies AG & Co. KG Ball bearing with integrated bushing
US9581197B2 (en) 2014-10-29 2017-02-28 Schaeffler Technologies AG & Co. KG Ball bearing with integrated bushing

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