CN100507491C - Method and device for measuring serial pairing gap of single-row conical bearing - Google Patents
Method and device for measuring serial pairing gap of single-row conical bearing Download PDFInfo
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- CN100507491C CN100507491C CNB2007102008173A CN200710200817A CN100507491C CN 100507491 C CN100507491 C CN 100507491C CN B2007102008173 A CNB2007102008173 A CN B2007102008173A CN 200710200817 A CN200710200817 A CN 200710200817A CN 100507491 C CN100507491 C CN 100507491C
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 19
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- 238000010586 diagram Methods 0.000 description 2
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
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Abstract
The invention discloses a method and a device for measuring a serial pairing gap of a single-row conical bearing. Firstly, sequentially sleeving a bearing A, an inner spacer ring, a bearing B and a pressure plate on a mandrel of a base, sleeving a nut A on a thread A of the mandrel, and rotating an outer ring of the bearing B while screwing the nut A so as to enable the pressure plate to press the outer ring of the bearing B; then, the supporting angle supporting plate component is arranged on the mandrel, so that the supporting claws on the supporting angle supporting plate component are pressed on the outer ring of the bearing A, the nut B is sleeved on the thread B of the mandrel, and the outer ring of the bearing A is rotated while the nut B is screwed, so that the supporting claws of the supporting angle supporting plate component are pressed on the outer ring of the bearing A; and then, respectively measuring the distance between the two adjacent end surfaces of the two bearing outer rings and the height of the outer spacing ring, and calculating the difference between the distance between the two adjacent end surfaces of the two bearing outer rings and the height of the outer spacing ring to obtain the pairing gap of the single-row conical bearing in series connection. The method has the characteristics of high measurement precision and simple and convenient operation. The measurement efficiency can be improved.
Description
Technical field
The present invention relates to bearing measuring, particularly relate to single row conical bearing series connection pairing clearance measuring method and device.
Background technology
In order to improve the on-load ability of revolving part, guarantee reliability of products, adopt single row conical bearing series connection pairing to use at the two ends of some revolving part.But because used pairing bearing all is to match arbitrarily at random to use at present, the bearing that is matched exists the pairing gap improper, two shaft strengths that cause the series connection pairing to use are inhomogeneous, some bearing premature damage or inefficacy, the damage of bearing or the interlocking that lost efficacy cause also too early damage of other parts or components and parts or inefficacy, had a strong impact on the serviceable life of product, the economic loss that this situation caused can't be estimated.About conical bearing series connection pairing clearance measuring method, there is the data introduction in some bearing suppliers: two bearings of first, second that will need to match are measured separately respectively, carry out earlier bearing first Internal and external cycle c d end face be separated by respectively 120 the degree three directions measure.Method is: inner ring and taper roll bearing are placed on the measuring table, and then put the outer ring, rotate the outer ring lightly after loading onto the outer ring, lean against equably up to all taper rollers on the rib of inner ring, by the outer ring being applied certain pressure, measure bearing F
First M=(F
Cd1+ F
Cd2+ F
Cd3) mean value of ÷ 3; Again bearing second is measured, putting three contour cushion blocks (on circumference, putting) on the measuring table every 120 degree, be placed on inner ring and taper roll bearing on the measuring table reposefully, and then rotate the outer ring more lightly after putting the outer ring, lean against on the rib equably up to all taper roll bearings, apply certain power to bearing outer ring, measure cushion block and second bearing outer ring end face F
Second M=(F
D11+ F
D12+ F
D13) ÷ 3 mean values, be calculated as follows then: H-F
Second M+ C
A=h-F
First M(annotate: above original text is selected and is copied, C
ABe the bearing clearance, H is an outer ring spacer thickness, and h is a cone spacer thickness, F
Cd1, F
Cd2, F
Cd3Be the Internal and external cycle height difference of bearing first, F
D11, F
D12, F
D13The bearing second inner ring end face of back cushion piece one side is to the distance of bearing second outer ring).This method measuring accuracy is not high, measures often, and work efficiency is low.
Summary of the invention
The objective of the invention is to, a kind of single row conical bearing series connection pairing clearance measuring method and device are provided.This method and device have the measuring accuracy height, and be easy and simple to handle, can improve efficiency of measurement.
Technical scheme of the present invention: single row conical bearing series connection pairing clearance measuring method, it is characterized in that: this method is earlier bearing first, cone spacer, bearing second and pressing plate to be enclosed within on the mandrel of base successively, the nut first is enclosed within on the screw thread first of mandrel, the limit screws swivel bearing second outer ring, nut first limit, the Internal and external cycle of bearing second and taper roller is fitted tightly, and makes pressing plate compress bearing second outer ring; To prop up the angle again props up plate member and is contained on the mandrel, the pawl that leg is propped up on the plate member is pressed on the bearing first outer ring, nut second is enclosed within on the screw thread second of mandrel, the limit screws swivel bearing first outer ring, nut second limit, the Internal and external cycle and the taper roller of bearing first are fitted tightly, and make angle prop up plate member to prop up pawl and compress bearing first outer ring; Measure the spacing of two bearing outer ring adjacent both ends faces and the height of outer ring spacer then respectively, calculate the spacing of two bearing outer ring adjacent both ends faces and the difference in height of outer ring spacer, draw the pairing gap of single row conical bearing series connection.
In the above-mentioned single row conical bearing series connection pairing clearance measuring method, described pairing gap is for suitable between 0.02～0.08 μ m.
In the aforesaid single row conical bearing series connection pairing clearance measuring method, described pairing gap is for best between 0.02～0.04 μ m.
In the aforesaid single row conical bearing series connection pairing clearance measuring method, when tightening, described nut first and nut second uses torque spanner, to guarantee the snap-in force of definite value.
In the aforesaid single row conical bearing series connection pairing clearance measuring method, the tolerance clearance of described mandrel and bearing first and bearing second should guarantee the depth of parallelism of two pairing bearing outer rings; The degree of tightening of nut first and nut second should guarantee that two pairing inner rings of bearings and cone spacer fit tightly and not leave the gap.
In the aforesaid single row conical bearing series connection pairing clearance measuring method, when measuring the spacing of two bearing outer ring adjacent both ends faces, to be separated by 120 ° along the circumference of bearing outer ring and measure three times, get the mean value of three measurement results, as the distance values of two bearing outer ring adjacent both ends faces.
According to the used device of aforesaid single row conical bearing series connection pairing clearance measuring method, comprise base 1; Base 1 is provided with mandrel 2, and mandrel 2 is step-like circular shaft; Be provided with screw thread first 3 and screw thread second 4 at the top of mandrel 2, the diameter of screw thread first 3 is greater than the diameter of screw thread second 4; The pressing plate 6 that the useful nut first 5 of cover is fixed on screw thread first 3, the useful nut second 7 fixing legs of cover prop up plate member 8 on screw thread second 4.
In the measurement mechanism in aforesaid single row conical bearing series connection pairing gap, described leg props up plate member 8 and comprises support plate 9; Support plate 9 is provided with three legs 10 that are uniformly distributed along the circumference, and the bottom of each leg 10 is equipped with a pawl 11.
In the measurement mechanism in aforesaid single row conical bearing series connection pairing gap, described mandrel 2 is inserted on the base 1, is provided with stop pin 12 in the junction of mandrel 2 and base 1.
In the measurement mechanism in aforesaid single row conical bearing series connection pairing gap, described leg 10 is connected with support plate 9 through screw 13.
Compared with prior art, the present invention can make the conical bearing of single-row series connection pairing reach accurate pairing, prevent to exist the pairing gap improper because of the bearing of pairing, two shaft strengths are inhomogeneous when causing the series connection pairing to use, make some bearing premature damage or inefficacy, interlocking cause also too early damage of other parts or components and parts or inefficacy, have a strong impact on the serviceable life of product.The present invention has the measuring accuracy height, and is easy and simple to handle, can improve efficiency of measurement.
Description of drawings
Accompanying drawing 1 is a principle of work synoptic diagram of the present invention;
Accompanying drawing 2 is structural representations of equipment therefor of the present invention;
Accompanying drawing 3 is structural representations of base and mandrel subassembly among the present invention;
Accompanying drawing 4 is structural representations that leg props up plate member among the present invention;
Accompanying drawing 5 is vertical views of accompanying drawing 4;
Accompanying drawing 6 is the synoptic diagram that need two pairing bearings measuring among the present invention.
Being labeled as in the accompanying drawing: 1-base, 2-mandrel, 3-screw thread first, 4-screw thread second, 5-nut first, the 6-pressing plate, 7-nut second, the 8-leg props up plate member, the 9-support plate, the 10-leg, 11-props up pawl, the 12-stop pin, the 13-screw, 14-bearing first, 15-bearing second, 16-bearing first outer ring, 17-bearing first inner ring, 18-bearing second outer ring, 19-bearing second inner ring, 20-taper roller, the 21-cone spacer, 22-outer ring spacer, the spacing of two series shaft bearing outer-rings of H-adjacent face, H
1The height of-outer ring spacer, d-bearing first outer ring inner face, d
1-bearing second outer ring inner face, the spacing of two series connection of h-bearing inner race adjacent face, c-bearing first inner ring inner face, c
1-bearing second inner ring inner face.
Embodiment
Embodiment: single row conical bearing series connection pairing clearance measuring method and device.The present invention worked to as if the bearing of two pairings, be called bearing first 14 and bearing second 15.The pairing bearing pack that general bearing supplier is provided comprises bearing first 14 and bearing second 15, also comprises cone spacer 21 and outer ring spacer 22.The pairing bearing pack that bearing supplier is provided (in the drawings in order to mark the spacing H of two series shaft bearing outer-ring adjacent faces, has outer ring spacer 22 on one side not draw) as shown in Figure 6.C represents the end face that bearing first inner ring 17 and bearing second inner ring 19 are adjacent among the figure, and d represents the end face that bearing first outer ring 16 and bearing second outer ring 18 are adjacent, c
1The end face that expression bearing second inner ring 19 and bearing first inner ring 17 are adjacent, d
1The end face that expression bearing second outer ring 18 and bearing first outer ring 16 are adjacent, H
1The height of expression outer ring spacer, the spacing of two series connection of h bearing inner race adjacent face.Existing measuring method about conical bearing series connection pairing gap, there is the data introduction in some bearing suppliers: two bearings of first, second that will need to match are measured separately respectively, carry out earlier bearing first Internal and external cycle c d end face be separated by respectively 120 the degree three directions measure.Method is: inner ring and taper roll bearing are placed on the measuring table, and then put the outer ring, rotate the outer ring lightly after loading onto the outer ring, lean against equably up to all taper rollers on the rib of inner ring, by the outer ring being applied certain pressure, measure bearing F
First M=(F
Cd1+ F
Cd2+ F
Cd3) mean value of ÷ 3; Again bearing second is measured, putting three contour cushion blocks (on circumference, putting) on the measuring table every 120 degree, be placed on inner ring and taper roll bearing on the measuring table reposefully, and then rotate the outer ring more lightly after putting the outer ring, lean against on the rib equably up to all taper roll bearings, apply certain power to bearing outer ring, measure cushion block and second bearing outer ring end face F
Second M=(F
D11+ F
D12+ F
D13) ÷ 3 mean values, be calculated as follows then: H-F
Second M+ C
A=h-F
First M(annotate: above original text is selected and is copied, C
ABe the bearing clearance, H is an outer ring spacer thickness, and h is a cone spacer thickness, F
Cd1, F
Cd2, F
Cd3Be the Internal and external cycle height difference of bearing first, F
D11, F
D12, F
D13The bearing second inner ring end face of back cushion piece one side is to the distance of bearing second outer ring).This method measuring accuracy is not high, measures often, and work efficiency is low.
In order to make measurement more accurate, also make measurement easier, the applicant has invented special-purpose measurement mechanism, and as shown in Figure 2, this device comprises base 1; Base 1 is provided with mandrel 2, and mandrel 2 is inserted on the base 1, is provided with stop pin 12 in the junction of mandrel 2 and base 1, and when preventing swivel bearing, mandrel 2 and then rotates.Mandrel 2 is step-like circular shaft, as shown in Figure 3, is provided with screw thread first 3 and screw thread second 4 at the top of mandrel 2, and the diameter of screw thread first 3 is greater than the diameter of screw thread second 4; Pressing plate 6 and for example shown in Figure 2, that the useful nut first 5 of cover is fixed on screw thread first 3, the useful nut second 7 fixing legs of cover prop up plate member 8 on screw thread second 4.Leg props up plate member 8 as shown in Figure 4 and Figure 5, and it comprises support plate 9; Support plate 9 is provided with three legs 10 that are uniformly distributed along the circumference, and leg 10 is connected with support plate 9 through screw 13.The bottom of each leg 10 is equipped with a pawl 11.
Its measuring method is earlier bearing first 14, cone spacer 21, bearing second 15 and pressing plate 6 to be enclosed within on the mandrel 2 of base 1 successively, nut first 5 is enclosed within on the screw thread first 3 of mandrel, the limit screws swivel bearing second outer ring, nut first 5 limit 18, the Internal and external cycle of bearing second 15 and taper roller 20 is fitted tightly, and makes pressing plate 6 compress bearing second outer ring 18; To prop up the angle again props up plate member 8 and is contained on the mandrel 2, the pawl 11 that leg is propped up on the plate member 8 is pressed on the bearing first outer ring 16, nut second 7 is enclosed within on the screw thread second 4 of mandrel, the limit screws swivel bearing first outer ring, nut second 7 limit 16, the Internal and external cycle and the taper roller 20 of bearing first 14 are fitted tightly, and the pawl 11 that an angle is propped up on the plate member 8 compress bearing first outer ring 16; Measure the spacing H of two bearing outer ring adjacent both ends faces and the height H of outer ring spacer then respectively
1, calculate the spacing H of two bearing outer ring adjacent both ends faces and the height H of outer ring spacer
1Difference, draw the pairing gap delta of single row conical bearing series connection, i.e. δ=H-H
1Its pairing gap delta is comparatively suitable between 0.02～0.08 μ m.The pairing gap delta is best between 0.02～0.04 μ m.In order to make measurement result more accurate, it is too tight that nut first 5 and nut second 7 can not be twisted, the too pine that can not twist, so all can influence the accuracy of measurement result, therefore nut first 5 or nut second 7 should be used torque spanner when tightening, to guarantee the snap-in force of definite value, more convenient in order to use, can on nut first 5 or nut second 7, overlap upper bush and tighten (torque spanner buyable) with torque spanner again.The outer ring of swivel bearing first 14 or bearing second 15 fastening nut first 5 or nut second 7 on one side on one side in fastening nut first 5 or nut second 7, the taper roller of two bearings and the Internal and external cycle of bearing are fitted tightly, to guarantee the depth of parallelism of two bearings, during the outer ring of swivel bearing first 14 or bearing second 15, can rotate by hand, when changeing motionless or inconvenient with hand, the instrument rotation of available dedicated.When measuring the spacing H of two bearing outer ring adjacent both ends faces, more accurate for also making measurement result, be separated by 120 ° along the circumference of bearing outer ring and measure three times, get the mean value of three measurement results, as the distance values H of two bearing outer ring adjacent both ends faces.The same height H of measuring outer ring spacer 22
1The time, also can use the same method and measure three times, get the mean value of three measurement results, as the height H of outer ring spacer 22
1After formula δ=H-H
1Calculate the result in final single row conical bearing series connection pairing gap.
The pairing bearing pack that bearing supplier is provided comprises cone spacer 21 and outer ring spacer 22, and when measuring, without outer ring spacer 22, only with cone spacer 21, but two pairing bearings are when real work, and cone spacer 21 and outer ring spacer 22 all do not use.During installation, can not be gapped between the inner ring of two pairing bearings, only guarantee to have between the outer ring of two pairing bearings the gap of 0.02～0.08 μ m.
Claims (9)
- [claim 1] single row conical bearing series connection pairing clearance measuring method, it is characterized in that: this method is earlier bearing first, cone spacer, bearing second and pressing plate to be enclosed within on the mandrel of base successively, the nut first is enclosed within on the screw thread first of mandrel, the limit screws swivel bearing second outer ring, nut first limit, the Internal and external cycle of bearing second and taper roller is fitted tightly, and makes pressing plate compress bearing second outer ring; To prop up the angle again props up plate member and is contained on the mandrel, the pawl that leg is propped up on the plate member is pressed on the bearing first outer ring, nut second is enclosed within on the screw thread second of mandrel, the limit screws swivel bearing first outer ring, nut second limit, the Internal and external cycle and the taper roller of bearing first are fitted tightly, and make angle prop up plate member to prop up pawl and compress bearing first outer ring; Measure the spacing of two bearing outer ring adjacent both ends faces and the height of outer ring spacer then respectively, calculate the spacing of two bearing outer ring adjacent both ends faces and the difference in height of outer ring spacer, draw the pairing gap of single row conical bearing series connection.
- [claim 2] single row conical bearing series connection according to claim 1 pairing clearance measuring method, it is characterized in that: described pairing gap is 0.02～0.08 μ m.
- [claim 3] single row conical bearing series connection according to claim 2 pairing clearance measuring method, it is characterized in that: described pairing gap is 0.02～0.04 μ m.
- [claim 4] single row conical bearing series connection according to claim 3 pairing clearance measuring method is characterized in that: use torque spanner when described nut first and nut second are tightened, to guarantee the snap-in force of definite value.
- [claim 5] single row conical bearing series connection according to claim 4 pairing clearance measuring method, it is characterized in that: the tolerance clearance of described mandrel and bearing first and bearing second should guarantee the depth of parallelism of two pairing bearing outer rings; The degree of tightening of nut first and nut second should guarantee that two pairing inner rings of bearings and cone spacer fit tightly and not leave the gap.
- [claim 6] single row conical bearing series connection according to claim 5 pairing clearance measuring method, it is characterized in that: when measuring the spacing of two bearing outer ring adjacent both ends faces, to be separated by 120 ° along the circumference of bearing outer ring and measure three times, get the mean value of three measurement results, as the distance values of two bearing outer ring adjacent both ends faces.
- [claim 7] by the used device of the arbitrary claim of claim 1 to 6 described single row conical bearing series connection pairing clearance measuring method, it is characterized in that: this device comprises base (1); Base (1) is provided with mandrel (2), and mandrel (2) is step-like circular shaft; Be provided with screw thread first (3) and screw thread second (4) at the top of mandrel (2), the diameter of screw thread first (3) is greater than the diameter of screw thread second (4); Go up the fixing pressing plate (6) of the useful nut first of cover (5) in screw thread first (3), go up the fixing leg of the useful nut second of cover (7) in screw thread second (4) and prop up plate member (8); Leg props up plate member (8) and comprises support plate (9); Support plate (9) is provided with three legs (10) that are uniformly distributed along the circumference, and the bottom of each leg (10) is equipped with a pawl (11).
- The measurement mechanism in [claim 8] single row conical bearing series connection according to claim 7 pairing gap, it is characterized in that: described mandrel (2) is inserted on the base (1), is provided with stop pin (12) in the junction of mandrel (2) and base (1).
- The measurement mechanism in [claim 9] single row conical bearing series connection according to claim 8 pairing gap, it is characterized in that: described leg (10) is connected with support plate (9) through screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007102008173A CN100507491C (en) | 2007-06-13 | 2007-06-13 | Method and device for measuring serial pairing gap of single-row conical bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007102008173A CN100507491C (en) | 2007-06-13 | 2007-06-13 | Method and device for measuring serial pairing gap of single-row conical bearing |
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| Publication Number | Publication Date |
|---|---|
| CN101113940A CN101113940A (en) | 2008-01-30 |
| CN100507491C true CN100507491C (en) | 2009-07-01 |
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|---|---|---|---|
| CNB2007102008173A Active CN100507491C (en) | 2007-06-13 | 2007-06-13 | Method and device for measuring serial pairing gap of single-row conical bearing |
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| CN (1) | CN100507491C (en) |
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| CN109029211A (en) * | 2018-07-26 | 2018-12-18 | 柳州上汽汽车变速器有限公司 | The measuring instrument and measurement method of speed changer shaft axial gap |
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| CN103292764B (en) * | 2013-05-28 | 2015-12-02 | 安徽江淮汽车股份有限公司 | A kind of bearing outer ring height detection method |
| CN103776411B (en) * | 2013-12-06 | 2016-06-01 | 安徽巨一自动化装备有限公司 | Automobile primary cone bearing clearance measurement core and application thereof |
| CN107214662B (en) * | 2017-06-06 | 2018-10-26 | 中国北方车辆研究所 | A kind of back-to-back taper roll bearing configuration calculation method |
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| DE102017223418B4 (en) * | 2017-12-20 | 2023-05-25 | Zf Friedrichshafen Ag | Model-based method and system for condition monitoring of a plain bearing, especially for wind turbines |
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| CN112050772A (en) * | 2020-10-15 | 2020-12-08 | 安徽固迈汽车零部件有限公司 | Bearing working clearance detection method |
| CN113566668B (en) * | 2021-08-13 | 2023-06-30 | 洛阳轴承研究所有限公司 | Assembly measuring method of double-channel serial bearing and measuring device for implementing same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5497559A (en) * | 1994-02-04 | 1996-03-12 | Nsk Ltd. | Method of measuring preload clearance in double row rolling bearing and apparatus therefore |
| CN1091872C (en) * | 1998-02-26 | 2002-10-02 | 浙江万向特种轴承有限公司 | Method for measuring axial clearance of double-row conical bearing |
-
2007
- 2007-06-13 CN CNB2007102008173A patent/CN100507491C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5497559A (en) * | 1994-02-04 | 1996-03-12 | Nsk Ltd. | Method of measuring preload clearance in double row rolling bearing and apparatus therefore |
| CN1091872C (en) * | 1998-02-26 | 2002-10-02 | 浙江万向特种轴承有限公司 | Method for measuring axial clearance of double-row conical bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029211A (en) * | 2018-07-26 | 2018-12-18 | 柳州上汽汽车变速器有限公司 | The measuring instrument and measurement method of speed changer shaft axial gap |
| CN109029211B (en) * | 2018-07-26 | 2020-06-12 | 柳州上汽汽车变速器有限公司 | Measuring instrument and measuring method for axial clearance of rotating shaft of transmission |
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| Publication number | Publication date |
|---|---|
| CN101113940A (en) | 2008-01-30 |
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Owner name: CNAC LIYUAN HYDRAULIC CO., LTD. Free format text: FORMER OWNER: GUIZHOU LIYUAN HYDRAULIC CO., LTD. Effective date: 20091016 |
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Effective date of registration: 20091016 Address after: Box 99, Guiyang, Guizhou, China Patentee after: Liyuan Hydraulic Co., Ltd. of Aviation Industry Corporation of China Address before: Box 99, Guiyang, Guizhou, China Patentee before: Guizhou Liyuan Hydraulic Co., Ltd. |
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Assignee: Duyun Guihang Dongfang Machine Tool Co., Ltd. Assignor: Liyuan Hydraulic Co., Ltd. of Aviation Industry Corporation of China Contract record no.: 2012520000010 Denomination of invention: Method for measuring single row conical bearing connection in series matched pair inter space Granted publication date: 20090701 License type: Exclusive License Open date: 20080130 Record date: 20120704 |