KR20120019683A - Needle roller bearing - Google Patents

Needle roller bearing Download PDF

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Publication number
KR20120019683A
KR20120019683A KR1020100083042A KR20100083042A KR20120019683A KR 20120019683 A KR20120019683 A KR 20120019683A KR 1020100083042 A KR1020100083042 A KR 1020100083042A KR 20100083042 A KR20100083042 A KR 20100083042A KR 20120019683 A KR20120019683 A KR 20120019683A
Authority
KR
South Korea
Prior art keywords
needle roller
roller bearing
needle
high speed
inner ring
Prior art date
Application number
KR1020100083042A
Other languages
Korean (ko)
Inventor
박경철
Original Assignee
박경철
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 박경철 filed Critical 박경철
Priority to KR1020100083042A priority Critical patent/KR20120019683A/en
Publication of KR20120019683A publication Critical patent/KR20120019683A/en

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Classifications

    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
    • F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
    • F16C33/546—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part with a M- or W-shaped cross section
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/48—Needle bearings with two or more rows of needles
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window cages
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without inner ring

Abstract

The present invention relates to a needle roller bearing, and more particularly, it is spherical so as to minimize the frictional force of both end surfaces of the needle roller when using the needle roller bearing, in particular two needle rollers between the outer ring and the inner ring It is an object to provide needle roller bearings that are spaced apart and configured for high speed rotation and large loads.
Needle roller bearing for needle roller bearing according to the present invention, when using the needle roller bearing, as well as at high speed rotation, when the load is inclined to either side, while the end surface of the inner ring and the needle roller friction with each other local to the outer, inner ring Both ends of the needle roller are formed in a spherical shape to prevent abrasion from occurring.
In addition, when configuring the left needle roller bearing consisting of an outer ring and an inner ring or one cylindrical support wheel, the needle rollers are characterized in that the two needle rollers are repeatedly arranged at intervals of one modification so as to be suitable for high speed rotation and large loads. According to the needle roller bearing needle roller, both end faces are spherical, so it is easy to rotate at high speed, and the needle roller bearing can be used for a long time by inducing inner and outer rings even when the load is inclined to either side. Can be effective,
In addition, since the needle roller bearings composed of the outer ring and the inner ring or one cylindrical support ring are repeatedly arranged at intervals by one modification, the needle roller bearings can withstand high speed rotation as well as large loads. It has the effect of greatly contributing to quality improvement.

Description

Needle roller bearing

The present invention relates to a needle roller bearing, and more particularly, it is formed in a spherical shape so that the friction force is uniform on both end surfaces of the needle roller when using the needle roller bearing, in particular two needle rollers between the outer ring and the inner ring with one modification A needle roller bearing is arranged spaced apart and adapted for high speed rotation and large loads.

As is well known, needle roller bearings have a wider contact surface than ball bearings, so they are able to withstand high-speed rotation and larger loads, and thus are widely used as components of machines in which a large amount of impact force is applied.

Looking at the configuration of the conventional needle roller bearing as described above, it is divided into a needle roller bearing installed as an outer ring, an inner ring, a needle roller, and a needle roller bearing provided with a needle roller in one cylindrical support wheel.

And the needle roller which comprises the needle roller bearing as mentioned above is comprised by the disk of a straight both end surface.

Needle roller bearings using straight needle rollers in which both ends and the center portion are in a straight line as described above, in addition to high speed rotation, when both sides of the inner ring and the needle roller are localized As a result of excessive friction, local wear phenomenon occurs in the outer and inner rings, such that the life of the needle roller bearing is reduced by abnormal wear.

In order to solve these disadvantages, fine inclination angles are formed at both ends of the needle roller, and in this case, the above problems cannot be completely solved.

In particular, the needle rollers configured as described above are provided at regular intervals in both the needle roller bearings composed of the outer and inner rings, or the needle roller bearings composed of one cylindrical support wheel.

Needle roller bearings provided with needle rollers at regular intervals as described above have no problem in high-speed rotation, but have a problem of insufficient durability to withstand large loads.

Needle roller bearing needle roller according to the present invention for solving the above problems is formed in both ends of the spherical shape as well as at high speed rotation, even when the load is to either side, the inner ring and normal wear life It is desired to provide a needle roller bearing that is suitable for high speed rotation and large loads by allowing the needle rollers to be repeatedly arranged at intervals in one modification while maintaining this long period of time.

Needle roller bearing needle roller according to the present invention for achieving the above object, when using a needle roller bearing, as well as high speed rotation, when the load is inclined to either side, the inner end of the inner ring and the needle roller are local to each other Both ends of the needle roller are formed in a spherical shape in order to prevent local wear phenomenon from occurring on the outer and inner rings while rubbing.

In addition, it is a feature of the present invention that two needle rollers are configured to be repeatedly arranged at intervals of one modification so as to be suitable for high speed rotation and a large load when the left needle roller bearing is composed of an outer ring and an inner ring or one cylindrical support wheel.

According to the needle roller for needle roller bearing according to the present invention as described above, since both end surfaces are formed in a spherical shape when the needle roller bearing needle roller is used, it is easy to rotate at high speed, and even when the load is directed to either side, Needle roller bearings can be used for a long time by inducing inner ring and normal wear,

 In addition, since the needle roller bearings composed of the outer ring and the inner ring or one cylindrical support ring are repeatedly arranged at intervals by one modification, the needle roller bearings can withstand high speed rotation as well as large loads. It has the effect of greatly contributing to quality improvement.

1 is a side view for showing the configuration of both end portions of the needle roller according to the present invention
2 and 3 is a perspective view of the needle roller bearing according to the present invention
Figure 4 is an exemplary side view of the needle roller bearing according to the present invention

Hereinafter, specific embodiments of the needle roller bearing according to the present invention will be described in detail with reference to the accompanying drawings.

Needle roller bearing according to the present invention,

The needle roller bearing 10 is composed of an outer ring 20 and an inner ring 21 or one cylindrical support wheel 30 so that the needle rollers 1 are installed at regular intervals.

The needle roller 1, which is a core component of the needle roller bearing 10, has both end surfaces 2 formed in a spherical shape, and when the needle roller bearing 10 is used, two needle rollers are suitable for high speed rotation and large loads. It is composed of repetitive arrangements at intervals in one modification.

Referring to the action of the needle roller bearing according to the present invention configured as described above in detail.

First, the needle roller bearing according to the present invention configured as described above is used in a machine.

Since both end surfaces 2 of the needle roller 1 are spherical in high speed rotation, when the load is directed to either of the end surfaces 1 of the needle roller 1 in the process of being used as a needle roller bearing In addition, since the end surfaces of the outer and inner rings and the needle rollers are prevented from being excessively rubbed with each other locally, the wear and tear of the outer and inner rings are prevented from occurring, and the outer and inner ends of the needle rollers have a uniform friction force. This facilitates high speed rotation.

In particular, the needle roller 1, which is a core component of the needle roller bearing 10, is formed of the outer ring 20 and the inner ring 21 or the needle roller bearing 10 formed of one cylindrical support wheel 30. Since the two are repeatedly arranged at intervals of one modification, they can withstand large loads, so they are suitable for high speed rotation and large loads simultaneously.

1: needle roller
2: both ends
10: needle roller bearing
20: paddle
21: inner ring
30: support ring

Claims (2)

In the needle roller bearing consisting of the needle rollers 1 and the outer ring 20 and the inner ring 21 or of the needle rollers 1 and the cylindrical support wheel 30,
Needle roller bearings, characterized in that the needle roller (1) is the core configuration in the needle roller bearing (10) is arranged repeatedly arranged in a pair. 2. Needle roller bearing according to claim 1, characterized in that both end surfaces (2) of the needle roller (1) provided at regular intervals on the needle roller bearing (10) are formed in a spherical shape.
KR1020100083042A 2010-08-26 2010-08-26 Needle roller bearing KR20120019683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100083042A KR20120019683A (en) 2010-08-26 2010-08-26 Needle roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100083042A KR20120019683A (en) 2010-08-26 2010-08-26 Needle roller bearing

Publications (1)

Publication Number Publication Date
KR20120019683A true KR20120019683A (en) 2012-03-07

Family

ID=46128516

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100083042A KR20120019683A (en) 2010-08-26 2010-08-26 Needle roller bearing

Country Status (1)

Country Link
KR (1) KR20120019683A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104895931A (en) * 2015-05-26 2015-09-09 德清恒富机械有限公司 Needle roller bearing
CN104895937A (en) * 2015-05-26 2015-09-09 德清恒富机械有限公司 Needle roller mounting structure of needle roller bearing
CN107429736A (en) * 2015-04-20 2017-12-01 舍弗勒技术股份两合公司 Method for manufacturing the rolling element for rolling bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107429736A (en) * 2015-04-20 2017-12-01 舍弗勒技术股份两合公司 Method for manufacturing the rolling element for rolling bearing
CN104895931A (en) * 2015-05-26 2015-09-09 德清恒富机械有限公司 Needle roller bearing
CN104895937A (en) * 2015-05-26 2015-09-09 德清恒富机械有限公司 Needle roller mounting structure of needle roller bearing

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A201 Request for examination
E601 Decision to refuse application