CN203892368U - Novel high-speed deep groove ball bearing - Google Patents

Novel high-speed deep groove ball bearing Download PDF

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Publication number
CN203892368U
CN203892368U CN201420335674.2U CN201420335674U CN203892368U CN 203892368 U CN203892368 U CN 203892368U CN 201420335674 U CN201420335674 U CN 201420335674U CN 203892368 U CN203892368 U CN 203892368U
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CN
China
Prior art keywords
bearing
inner ring
steel ball
deep groove
ring
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
Application number
CN201420335674.2U
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Chinese (zh)
Inventor
戴学利
平静艳
牛建平
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.)
Eight ring bearing (Changxin) Co., Ltd.
Original Assignee
Zhejiang Bahuan Bearing Co Ltd
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 Zhejiang Bahuan Bearing Co Ltd filed Critical Zhejiang Bahuan Bearing Co Ltd
Priority to CN201420335674.2U priority Critical patent/CN203892368U/en
Application granted granted Critical
Publication of CN203892368U publication Critical patent/CN203892368U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a deep groove ball bearing which can operate at a high speed and is used for overcoming the defect that in the prior art the bearing operation speed is limited as a deep groove ball bearing is not reasonable in structural design of an inner ring and an outer ring, an inner ring channel and a steel ball working surface are poor in heat radiation, a steel ball is large in axial displacement in the an outer ring channel and the possibility of sliding fraction is high. The deep groove ball bearing comprises an outer bearing ring, an inner ring, a steel ball and a sealing ring, wherein an inner ring arched channel is formed in the outer surface of the inner ring; an outer ring arched channel is formed in the inner surface of the outer ring. By adopting the high-speed deep groove ball bearing of the structure, the heat radiation condition of the bearing working surface is improved, the problem that the temperature is rapidly increased when the bearing rotates in high speed is solved, the lubrication property of the bearing is improved, the rotation speed of the bearing is increased, the sliding fraction and friction moment of the bearing are reduced, and thus the deep groove ball bearing can operate in high speed.

Description

A kind of novel high speed deep groove ball bearing
Technical field
The utility model relates to a kind of bearing, relates in particular to a kind of high speed deep groove ball bearing.
Background technique
There are the parts of rotating function, all can't do without drive and the support of bearing.The precision of its bearing and the height of efficiency directly have influence on precision and the efficiency of rotary component, so the just direct impact of the precision of bearing and efficiency has even represented precision and the efficiency of rotary component, particularly shout today of energy-conserving and environment-protective in the whole world, the precision that improves rotary component has become common recognition with efficiency, so bearing is also just had higher requirement.
Concerning common deep groove ball bearing, machining accuracy will lean on equipment and operative skill to ensure, but raise the efficiency---improve and improve work efficiency in bearing rotating speed and working life, thereby the friction torque that reduces bearing reduces the power consumption of bearing, can be by the architecture advances of traditional bearing product is realized.Find under study for action, although we by this class bearing on rolling bearing, in fact in rolling bearing working procedure because bearing working face (is the size of the surface of contact of steel ball and raceway groove, geometrical construction and quality of processing difference down together), steel ball is not PURE ROLLING in raceway groove, moment can produce relative sliding, and this relative sliding is easy frictional heat both, also increases running torque and increases power consumption.
In prior art, generally adopt standard deep groove ball bearing, the structure of existing standard deep groove ball bearing will realize bearing and run up and have following defect:
1, the high speed performance of bearing has been limited in steel ball size and rotating center footpath.
The radial centrifugal force F of steel ball crbe directly proportional to 3 powers of steel ball size, be directly proportional to the rotating center footpath Dwp of steel ball.The diameter D of bearing steel ball is larger, and the quality of steel ball is just larger, steel ball in the time of High Rotation Speed radial centrifugal force FCr and gyrostatic moment also just larger; Meanwhile, the rotating center footpath of steel ball is larger, and the linear velocity of steel ball is just larger, steel ball in the time of High Rotation Speed radial centrifugal force and gyro power also just larger.The radial centrifugal force of steel ball and gyrostatic moment conference produce very large contact stress to bearing, aggravation bearing temperature rise and wearing and tearing, the working life of reducing bearing.As shown in Figure 1, the rotating center footpath Dwp of standard deep groove ball bearing steel ball is placed in the middle, Dwp value equal inner ring inner diameter d and outer ring outer diameter D and mean value, computational methods are shown in formula 1
Dwp=(D+d)/2。Formula 1
Therefore find out, standard deep groove ball bearing is limit because of said structure, and rotating speed is limited.Taking the 6206 seal gease lubricating bearings of external diameter 62mm, internal diameter 30mm, width 16mm as example, its limit speed only has 9500 revs/min.
2, bearing internal structure has limited the high speed performance of bearing.
As Figure 2-3, the target design function of standard deep groove ball bearing is load rating, thereby bear inner ring grooved railway radius of arc (or being called bear inner ring grooved railway radius of curvature) is designed to small radii of curvature, for 0.515 times of steel ball size, outer ring raceway radius of arc (or being called outer ring raceway radius of curvature) is designed to larger radius of curvature, is 0.525 times of steel ball size.The bearing running up requires to determine circle working surface (weighed circle raceway groove arc surface again) will stablize steel ball and another lasso of forming bearing unit, and moving-coil working surface (claiming again moving-coil raceway groove arc surface) should lubricate and dispel the heat well.And this project bearing outer ring is to determine circle, inner ring is moving-coil, under high speed conditions, causes heat to increase severely as the little meeting of bear inner ring grooved railway radius of arc (radius of curvature) of moving-coil.Because with respect to outer ring raceway, bear inner ring grooved railway is than the many one times of left and right of the frequency of outer ring raceway work, also be bear inner ring grooved railway with the contact wear of steel ball than the many one times of left and right of outer ring raceway, bear inner ring grooved railway radius of arc (radius of curvature) is too small, the circular arc line of raceway groove envelope steel ball is just many, so can significantly rise at the state lower bearing raceway groove of inner ring High Rotation Speed and the heat of steel ball surface of contact, steel ball and raceway groove face are easy to wearing and tearing, thereby reduce the working life of bearing.
In addition, large as the outer ring raceway radius of arc (radius of curvature) of determining circle, can make that the axial float of bearing is large and sliding friction is large.Reason is, in the time that outer ring raceway radius of arc (radius of curvature) is large, degree of making up between raceway groove and steel ball is little, also the circular arc line that is raceway groove envelope steel ball is few, cause on the one hand the axial float of steel ball in outer ring raceway to increase, fast state lower bearing is unstable, causes on the other hand the sliding friction probability of steel ball on raceway groove face to increase.
3, the epipharynx of seal ring and inner ring seal groove interference fit, the spin friction moment of bearing is large, and under high speed conditions, frictional heat is serious.
As can be seen here, improve the high speed performance of deep groove ball bearing, will take on the one hand technical measures to reduce centrifugal force and the gyrostatic moment of steel ball, be thermal diffusivity and the lubricating function that improves bearing working face on the other hand, improves the stability under bearing fast state and reduce sliding friction probability.
Model utility content
Main purpose of the present utility model is, unreasonable for the design of prior art deep groove ball bearing inner ring outer ring structure, cause poor radiation between bear inner ring grooved railway and steel ball working face, the axial movement value of steel ball in outer ring raceway probability large, that produce sliding friction is high, the deficiency that bearing operation speed is restricted, provides a kind of deep groove ball bearing that can run up.
The purpose of this utility model is achieved through the following technical solutions:
A kind of novel high speed deep groove ball bearing, comprise bearing outer ring, inner ring, steel ball and seal ring, on the outer surface of described inner ring, be provided with inner ring arc raceway groove, on described inner surface, be provided with outer ring arc raceway groove, bear inner ring grooved railway radius of curvature is 0.53-0.56 times of steel ball size, and the 0.505-0.52 that outer ring raceway radius of curvature 10 is steel ball size doubly;
Bear inner ring grooved railway radius of curvature is 0.535 times of steel ball size, outer ring raceway radius of curvature 10 is steel ball size 0.512 times;
Arrange respectively and deposit fat groove in the both sides of described bear inner ring grooved railway 7, deposit fat groove and be connected with described bear inner ring grooved railway;
The rotating center footpath Dwp of steel ball is less than the mean value of inner ring inner diameter d and outer ring outer diameter D sum;
Described inner ring outer surface is provided with smooth inner ring sealing surface, and the interior sealing lip of seal ring is lips, between described inner ring sealing surface and interior sealing lip, is provided with gap;
Described inner ring sealing surface is the smooth surface of fine grinding;
The rotating center footpath Dwp of steel ball is less than the mean value of inner ring inner diameter d and outer ring outer diameter D sum.
Adopt the high speed deep groove ball bearing of the utility model structure, because bear inner ring grooved railway radius of arc (radius of curvature) increases, so the contact arc length between bear inner ring grooved railway and steel ball reduces, therefore improved the radiating condition of bearing working face, the problem that while having solved bearing High Rotation Speed, temperature sharply raises, and deposit fat groove because having increased, improved the greasy property of bearing, be conducive to the raising of bearing rotating speed.Simultaneously, because reduced outer ring raceway radius of arc (radius of curvature), the area of the coated steel ball surface of outer ring raceway increases, reduce the axial movement value of steel ball in outer ring raceway, the arc length of two moving element outer ring raceway and the issuable sliding friction of steel ball is reduced, thereby reduced force of sliding friction and the friction torque of bearing, not only can make deep groove ball bearing realize and run up, and reduce the power consumption of bearing, made the life-span of bearing have raising greatly.
Brief description of the drawings
Fig. 1 is prior art standard deep groove ball bearing structural representation;
Fig. 2 is bear inner ring grooved railway and the steel ball linkage structure schematic diagram of prior art standard deep groove ball bearing;
Fig. 3 is outer ring raceway and the steel ball linkage structure schematic diagram of prior art standard deep groove ball bearing;
Fig. 4 is the utility model deep groove ball bearing example structure schematic diagram;
Fig. 5 is bear inner ring grooved railway and the steel ball linkage structure schematic diagram of the utility model deep groove ball bearing;
Fig. 6 is outer ring raceway and the steel ball linkage structure schematic diagram of the utility model deep groove ball bearing.
Description of reference numerals
1-outer ring 2-inner ring 3-steel ball 4-seal ring 6-deposits sealing lip 12-sealing surfaces in fat groove 7-bear inner ring grooved railway 8-bear inner ring grooved railway radius of curvature 9-outer ring raceway 10-outer ring raceway radius of curvature 11-.
Embodiment
Below in conjunction with specific embodiment, the utility model is further described:
Deep groove ball bearing of the present utility model is the improvement on existing standard deep groove ball bearing architecture basics.It comprises bearing outer ring 1, inner ring 2, steel ball 3 and seal ring 4, on the outer surface of inner ring 2, be provided with arc bear inner ring grooved railway 7, on the internal surface of outer ring 1, be provided with arc outer ring raceway 9, bear inner ring grooved railway radius of curvature 8 is steel ball size 0.53~0.56 times, preferably 0.535 times, outer ring raceway radius of curvature 10 is designed to 0.505~0.520 times of steel ball size, is preferably 0.512 times.Adopt said structure, bearing inner race groove curvature radius 8 has increased 3%~8% than the bear inner ring grooved railway radius of curvature of standard deep groove ball bearing, bearing outer ring channel radius of curvature 10 has reduced 1%~4% than the outer ring raceway radius of curvature of standard deep groove ball bearing, reduce axial float and the sliding friction probability of steel ball in outer ring raceway, reduce the arc length of bear inner ring grooved railway envelope steel ball, improve the radiating condition of bear inner ring grooved railway and steel ball working face, improved the heat dispersion of bearing working face.
As the further improvement of the utility model structure, deposit fat groove 6 in the setting of the both sides of bear inner ring grooved railway 7 and be connected with bear inner ring grooved railway, like this, can store more lubricating grease at the outer surface of inner ring 2, ensure bearing working face sufficient lubrication, improve the greasy property of bearing working face.
As further improvement of the utility model, the rotating center footpath Dwp of steel ball is less than the mean value of inner ring inner diameter d and outer ring outer diameter D sum, the rotating center footpath Dwp of steel ball is set like this, in the situation that bearing boundary dimension is as constant in outer ring external diameter, inner ring internal diameter and width, to reduce the linear velocity of steel ball in bearing, can reduce like this radial centrifugal force and the gyrostatic moment of steel ball, simultaneously, increase the thickness of bearing outer ring, reduce the thickness of inner ring.Outer ring thickness increases, and has improved the rigidity of outer ring, and namely circular arc outer ring raceway is not yielding to pack box body hole rear bearing working surface into, and inner ring thickness reduces, and has reduced the rotary inertia of inner ring, is beneficial to bearing and runs up.
As the further improvement of the utility model structure, the outer surface relative with the interior sealing lip 11 of seal ring of bearing inner race is called sealing surfaces 12 for light cylndrical surface, seal groove is namely no longer set on the outer surface of bearing inner race, this inner ring outer surface relative with the interior sealing lip of seal ring is inner ring sealing surface, between seal ring and inner ring sealing surface, it is lips noncontact seal, namely the interior sealing lip of seal ring is lips, and interior sealing lip and inner peripheral surface leave gap X.Preferably fine grinding inner ring sealing surface.Adopt said structure, the heat generating because of friction when bearing working can be reduced, temperature rise value when minimizing bearing runs up.
Adopt the deep groove ball bearing of the utility model structure, can make the lubricated radiating condition that more fully, has further improved bearing working face of bearing working face, reduce the sliding friction between steel ball and bear inner ring grooved railway, thereby make bearing can be under high-revolving operating conditions good operation, reduce the friction torque of bearing, thereby obtained a kind of high efficiency, low power consumption, high rotating speed, long-life bearing.

Claims (7)

1. a novel high speed deep groove ball bearing, comprise bearing outer ring (1), inner ring (2), steel ball (3) and seal ring (4), it is characterized in that, on the outer surface of described inner ring (2), be provided with inner ring arc raceway groove (7), on the internal surface of described outer ring (1), be provided with outer ring arc raceway groove (9), doubly, the 0.505-0.52 that outer ring raceway radius of curvature 10 is steel ball size doubly for the 0.53-0.56 that bear inner ring grooved railway radius of curvature (8) is steel ball size.
2. novel high speed deep groove ball bearing as claimed in claim 1, is characterized in that, bear inner ring grooved railway radius of curvature (8) is steel ball size 0.535 times, outer ring raceway radius of curvature 10 is steel ball size 0.512 times.
3. novel high speed deep groove ball bearing as claimed in claim 1, is characterized in that, arranges respectively and deposits fat groove (6) in the both sides of described bear inner ring grooved railway (7), deposits fat groove (6) and is connected with described bear inner ring grooved railway.
4. the novel high speed deep groove ball bearing as described in one of as every in claim 1-3, is characterized in that, the rotating center footpath Dwp of steel ball is less than the mean value of inner ring inner diameter d and outer ring outer diameter D sum.
5. the novel high speed deep groove ball bearing as described in one of as every in claim 1-3, is characterized in that, described inner ring outer surface is provided with smooth inner ring sealing surface, and the interior sealing lip of seal ring is lips, between described inner ring sealing surface and interior sealing lip, is provided with gap.
6. novel high speed deep groove ball bearing as claimed in claim 5, is characterized in that, described inner ring sealing surface is the smooth surface of fine grinding.
7. the novel high speed deep groove ball bearing as described in one of as every in claim 5, is characterized in that, the rotating center footpath Dwp of steel ball is less than the mean value of inner ring inner diameter d and outer ring outer diameter D sum.
CN201420335674.2U 2014-06-23 2014-06-23 Novel high-speed deep groove ball bearing Expired - Fee Related CN203892368U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420335674.2U CN203892368U (en) 2014-06-23 2014-06-23 Novel high-speed deep groove ball bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420335674.2U CN203892368U (en) 2014-06-23 2014-06-23 Novel high-speed deep groove ball bearing

Publications (1)

Publication Number Publication Date
CN203892368U true CN203892368U (en) 2014-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420335674.2U Expired - Fee Related CN203892368U (en) 2014-06-23 2014-06-23 Novel high-speed deep groove ball bearing

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806866A (en) * 2015-03-04 2015-07-29 胡运冲 Lubricating device of heavy-load automotive rear bridge drive bearing and lubricating method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806866A (en) * 2015-03-04 2015-07-29 胡运冲 Lubricating device of heavy-load automotive rear bridge drive bearing and lubricating method thereof
CN104806866B (en) * 2015-03-04 2017-08-01 姬玉平 A kind of lubricating arrangement and its lubricating method of heavy-duty automobile axle drive bearing

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180531

Address after: 313100 Chen Wang Lu Yidong, Changxin economic and Technological Development Zone, Huzhou, Zhejiang

Patentee after: Eight ring bearing (Changxin) Co., Ltd.

Address before: 318050 No. 889 Xin'an West Street, Luqiao District, Taizhou, Zhejiang.

Patentee before: Zhejiang Bahuan Bearing Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20200623