CN201866102U - Novel double-row cylindrical roller bearing - Google Patents
Novel double-row cylindrical roller bearing Download PDFInfo
- Publication number
- CN201866102U CN201866102U CN2010206398772U CN201020639877U CN201866102U CN 201866102 U CN201866102 U CN 201866102U CN 2010206398772 U CN2010206398772 U CN 2010206398772U CN 201020639877 U CN201020639877 U CN 201020639877U CN 201866102 U CN201866102 U CN 201866102U
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- CN
- China
- Prior art keywords
- rows
- rollers
- cylindrical roller
- raceway
- line column
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a novel double-row cylindrical roller bearing which comprises an outer ring, an inner ring, a retainer, two rows of cylindrical rollers arranged between the inner ring and the outer ring, and retainers for the two rows of cylindrical rollers, wherein an outer ring raceway matched with the two rows of cylindrical rollers is a single raceway containing the two rows of cylindrical rollers simultaneously, a raceway for the two rows of cylindrical rollers is not provided with a flange between the two rows of rollers, and can be ground in one time, and the size of the raceway is consistent with coaxiality to facilitate backlash configuration. Preferably, opposite ends of the two rows of cylindrical rollers are provided with shaft holes, and the retainers are provided with pin shafts matched with the shaft holes. Preferably, staggered arrangement of two rows of pockets of the comb-shaped retainers is changed to symmetrical arrangement, a through hole is drilled at the bottom of each pocket, each pin shaft penetrates through the through hole, two ends of the pin shafts are respectively matched with the shaft holes in the opposite ends of the two rows of cylindrical rollers, the shaft holes and the pin shafts are positioned on a center line of the rollers, linear velocity tends to be zero, and the rollers are stable in operation and low in friction.
Description
Technical field
The present invention relates to a kind of novel bearing, specifically is a kind of NNU type Biserial cylindrical roller bearing.
Background technique
Existing NNU Biserial cylindrical roller bearing type is used for machine tool chief axis, and the structural type of home and abroad is as shown in Figure 1, three ribs in outer ring, and inner ring does not have rib, the pectination retainer, two row pocket holes are staggered.
Such structural type is the product structure of a maturation, blemish in an otherwise perfect thing be the two raceways in outer ring, twice grinding that is installed, size is difficult to guarantee consistent with coaxality.It is consistent that the configuration of play is difficult to reach two row.
Summary of the invention
The present invention is exactly in order to overcome the two raceways in existing Biserial cylindrical roller bearing outer ring, grinding is installed for twice, size is difficult to guarantee consistent with coaxality, the configuration of play is difficult to reach the consistent technical problem of two row, provides a kind of configuration of two line column roller play to reach consistent novel Biserial cylindrical roller bearing.
Novel Biserial cylindrical roller bearing of the present invention, outer ring, inner ring, retainer are arranged, two line column rollers that are provided with between the Internal and external cycle and the retainer of two line column rollers, it is characterized in that: the outer ring raceway that cooperates with two line column rollers is for containing single raceway of two line column rollers simultaneously, the raceway that two line column rollers roll does not have rib between two row rollers, just be to have cancelled the outer ring centre rib, and raceway can a grinding like this, two raceway sizes and coaxality unanimity, play disposes well.The cancellation of outer ring centre rib in addition can increase roller length thus, the lengthening of roller, and dynamic load rating increases, and the life-span improves.Spacing between two line column rollers adopts the relative end of two line column rollers to have axis hole, and retainer has the bearing pin that cooperates with axis hole.After the centre rib cancellation of outer ring, on retainer, done article.Preferably change pectination retainer two row pocket holes and be staggered, be symmetric arrays, bore a through hole in bottom, pocket hole, be installed with bearing pin by through hole, the two ends of bearing pin cooperate (as Fig. 3) with the axis hole of two line column roller opposite ends respectively.A roundlet nest is bored in roller end in contact with it, and small roller is inserted.Because the circle nest is on the roller centre line, linear velocity is zero, and the roller running is steadily hanged down friction, and is very desirable.
Description of drawings
Fig. 1 has represented that existing NNU type Biserial cylindrical roller bearing simplifies (symmetry half) sectional view, and Fig. 2 has represented the partial view that existing NNU type Biserial cylindrical roller bearing retainer launches; Fig. 3 has represented that a kind of novel type Biserial cylindrical roller bearing of the present invention simplifies (symmetry half) sectional view, and Fig. 4 has represented the partial view that a kind of novel Biserial cylindrical roller bearing retainer of the present invention launches.
Embodiment
As Fig. 3 of accompanying drawing, 4 represented a kind of novel Biserial cylindrical roller bearings of the present invention, outer ring 1, inner ring 3, retainer 4, two line column rollers 2 are arranged, the retainer 4 of two line column rollers 2 and two line column rollers is being set between the Internal and external cycle.The outer ring raceway that cooperates with two line column rollers is the single raceway that is containing two line column roller outer ends arranged side by side, the raceway of two line column rollers rolling just is a straight-through raceway, change existing two dual-cavity raceways arranged side by side, formed between two row rollers and do not had rib, just be to have cancelled existing outer ring centre rib, the raceway of such two line column rollers can a grinding, two place's roller surfaces of two line column rollers institute scrolling position reach respectively and one sidewinder the side, can be easy to keep size and coaxality unanimity, play also can well dispose.The cancellation of outer ring centre rib in addition, the bearing of same specification can increase roller length thus, the lengthening of roller, dynamic load rating increases, and the life-span improves thus.Spacing between two line column rollers, it is spacing to adopt retainer to guarantee, preferably adopts the relative end of two line column rollers to have axis hole, and retainer has the bearing pin 5 that cooperates with axis hole, bearing pin one end and pin-and-hole better keep two line column rollers to roll stably movingly.After the centre rib cancellation of outer ring, when being symmetric arrays, preferably changing pectination retainer two row pocket holes and be staggered, become symmetric arrays in two row pocket holes of retainer.The setting of bearing pin like this is to bore a through hole in pocket hole bottom centre, and through hole is installed with bearing pin, and through hole is stretched out at the two ends of bearing pin, and two ends cooperate (the broken section part of seeing bearing pin 5 positions of Fig. 3) respectively with the axis hole of two line column roller opposite ends.Bearing pin also is equivalent to the small roller of a cooperation like this, bores a roundlet nest at the two line column roller opposed ends that contact with it, forms axis hole, and small roller end (bearing pin end) is inserted.Because circle nest (axis hole) is on the roller centre line, linear velocity is close to zero, the position running is steady separately at a raceway effectively to keep two line column rollers (being equivalent to large roller), and low friction is that the very desirable Biserial cylindrical roller bearing of a kind of the present invention is optimized structure.For versatility that further guarantees assembling and the efficient of assembling, be known as the double-row cylindrical roller of large roller, the roller two ends all have axis hole, and the roller of double-row cylindrical roller can be placed fast during assembling, needn't consider direction, the axis hole that can both guarantee the opposite end inserts small roller, guarantees the location.Insert respectively in the axis hole of large roller end face at the two ends of small roller like this, and roller rotates and drives the retainer rotation.
Claims (5)
1. novel Biserial cylindrical roller bearing, outer ring, inner ring, retainer are arranged, two line column rollers that are provided with between the Internal and external cycle and the retainer of two line column rollers is characterized in that: the outer ring raceway that cooperates with two line column rollers is for containing single raceway of two line column rollers simultaneously.
2. as the said a kind of novel Biserial cylindrical roller bearing of claim 1, it is characterized in that: the end that two line column rollers are relative has axis hole, and retainer has the bearing pin that cooperates with axis hole.
3. as claim 1 or 2 said a kind of novel Biserial cylindrical roller bearings, it is characterized in that: retainer two row pocket holes are symmetric arrays, bore a through hole in bottom, pocket hole, through hole is installed with bearing pin, and the two ends of bearing pin cooperate with the axis hole of two line column roller opposite ends respectively.
4. as claim 1 or 2 said a kind of novel Biserial cylindrical roller bearings, it is characterized in that: double-row cylindrical roller, the roller two ends all have axis hole.
5. as the said a kind of novel Biserial cylindrical roller bearing of claim 3, it is characterized in that: double-row cylindrical roller, the roller two ends all have axis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206398772U CN201866102U (en) | 2010-11-30 | 2010-11-30 | Novel double-row cylindrical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206398772U CN201866102U (en) | 2010-11-30 | 2010-11-30 | Novel double-row cylindrical roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866102U true CN201866102U (en) | 2011-06-15 |
Family
ID=44137258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206398772U Expired - Fee Related CN201866102U (en) | 2010-11-30 | 2010-11-30 | Novel double-row cylindrical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866102U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606625A (en) * | 2012-03-28 | 2012-07-25 | 袁伟民 | Double-column backing bearing |
| CN105508433A (en) * | 2016-02-17 | 2016-04-20 | 张广 | Double-row cylindrical roller bearing with angle compensation function and damping function |
| CN105526263A (en) * | 2016-02-17 | 2016-04-27 | 张广 | Double-row cylindrical roller bearing with both displacement compensation function and vibration reduction function |
| CN108571517A (en) * | 2018-04-28 | 2018-09-25 | 无锡民联汽车零部件有限公司 | The automobile bearing of built-in novel roller cage |
-
2010
- 2010-11-30 CN CN2010206398772U patent/CN201866102U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606625A (en) * | 2012-03-28 | 2012-07-25 | 袁伟民 | Double-column backing bearing |
| CN105508433A (en) * | 2016-02-17 | 2016-04-20 | 张广 | Double-row cylindrical roller bearing with angle compensation function and damping function |
| CN105526263A (en) * | 2016-02-17 | 2016-04-27 | 张广 | Double-row cylindrical roller bearing with both displacement compensation function and vibration reduction function |
| CN108571517A (en) * | 2018-04-28 | 2018-09-25 | 无锡民联汽车零部件有限公司 | The automobile bearing of built-in novel roller cage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20121130 |