CN104384822A - Method for matching bearing spacer - Google Patents

Method for matching bearing spacer Download PDF

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Publication number
CN104384822A
CN104384822A CN201410640127.XA CN201410640127A CN104384822A CN 104384822 A CN104384822 A CN 104384822A CN 201410640127 A CN201410640127 A CN 201410640127A CN 104384822 A CN104384822 A CN 104384822A
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CN
China
Prior art keywords
bearing
spacer
inner sleeve
average
hole
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Granted
Application number
CN201410640127.XA
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Chinese (zh)
Other versions
CN104384822B (en
Inventor
孙学诚
张友辉
韦周庆
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.)
AECC Shenyang Liming Aero Engine Co Ltd
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Shenyang Liming Aero Engine Group Co Ltd
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Priority to CN201410640127.XA priority Critical patent/CN104384822B/en
Publication of CN104384822A publication Critical patent/CN104384822A/en
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Publication of CN104384822B publication Critical patent/CN104384822B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/003—Measuring of motor parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)

Abstract

The invention discloses a method for matching a bearing spacer, belongs to the technical field of bearing application, and particularly relates to a method for matching a bearing spacer applied to an aircraft engine. By adopting the method for matching the bearing spacer, the matching correctness of inner and outer spacers and the working safety of an engine can be effectively ensured. The method for matching the bearing spacer comprises the following steps: I, measuring the radial activity of a bearing by using a radial activity gauge; II, measuring the concave-convex degree of the bearing by using an axial activity gauge; III, determining the axial activity of the bearing; IV, matching the outer spacer of the bearing, matching outer spacers of corresponding groups according to the thickness H of the determined bearing outer spacer, and uniformly selecting a plurality of points on the matched outer spacer for measuring the thicknesses, wherein an arithmetic mean value is taken as the practical thickness H' of the outer spacer; V, matching the inner spacer of the bearing, and matching the inner spacers of corresponding groups according to the thickness C of the determined bearing inner spacer.

Description

A kind of bearing spacer matching method
Technical field
The invention belongs to bearing applied technical field, particularly relate to a kind of bearing spacer matching method be applied in aero-engine.
Background technology
Same fulcrum duplex bearing design often appears in engine design, and evenly share its axial force produced by duplex bearing during internal space ring and external space ring guarantee engine operation, only in this way, engine could steady operation.Therefore, how internal space ring and external space ring is accurately matched particularly important.
In addition, aero-engine is when carrying out final assembly, the free activity of bearing be there are certain requirements, thus before engine assembly, axle, the radial activity under inspection bearing free state is needed, the work that the accuracy guarantee that only guaranteed free state lower bearing activity is measured starts function stable.
At present, existing bearing spacer matching method is all matched by theory calculate, can not ensure the accuracy that internal space ring and external space ring is matched.
Summary of the invention
For prior art Problems existing, the invention provides a kind of bearing spacer matching method that effectively can ensure the security of the correctness that internal space ring and external space ring is matched and engine operation.
To achieve these goals, the present invention adopts following technical scheme, and a kind of bearing spacer matching method, comprises the steps:
Step one: adopt radial activity measuring tool to measure the radial activity of bearing,
Bearing is arranged on the clutch shaft bearing inner sleeve bearing of radial activity measuring tool, with the first pressing plate, the first bolt and the first nut, bearing inner ring is fixed; Rise compactor and compress outer race, and measure the radial activity of bearing by the first amesdial; Along outer race circumference evenly several measurement points of setting, measure the radial activity of bearing of each measurement point respectively; Get the radial minimum of a value of activity of the bearing that records and the mean value of maximum as the radial activity of bearing;
Step 2: adopt axial mobility measuring tool to measure bearing camber,
Bearing is arranged on the second bearing inner sleeve bearing of axial mobility measuring tool, with the second pressing plate, the second bolt and the second nut, bearing inner ring is fixed; Put cover plate, the lower end of cover plate is contacted with outer race; Two amesdials are separately fixed on its dial framework, and the gauge head of two dial frameworks is withstood on the upper and lower end face of outer race respectively; Starting pressure machine, applies pressure by the force value of setting to cover plate, and measures bearing camber by amesdial; Along bearing inner ring circumference evenly several measurement points of setting, measure the bearing camber of each measurement point respectively, and calculate its arithmetic mean of instantaneous value A 1 is averageand B 1 is average; Outer race is circumferentially revolved turnback, again measures and calculate A 2 is averageand B 2 is average;
Bearing concavity is determined by following formula:
A=(A 1 is average+ A 2 is average)/2
In formula: bearing concavity when A-bearing faces up,
A 1 is averagethe arithmetic mean of instantaneous value of each measurement point bearing concavity when-bearing faces up,
A 2 is averagethe arithmetic mean of instantaneous value of each measurement point bearing concavity after revolving turnback when-bearing faces up,
Bearing convexity is determined by following formula:
B=(B 1 is average+ B 2 is average)/2
In formula: bearing convexity when B-bearing faces up,
B 1 is averagethe arithmetic mean of instantaneous value of each measurement point bearing convexity when-bearing faces up,
B 2 is averagethe arithmetic mean of instantaneous value of each measurement point bearing convexity after revolving turnback when-bearing faces up,
Bearing is spun upside down, bearing concavity A ' and bearing convexity B ' when determining that the bearing back side upwards as stated above;
Step 3: determine bearing axial mobility,
According to the measurement result of step 2, determine bearing axial mobility, bearing axial mobility is determined by following formula:
n＝(A+B+A′+B′)/2
In formula: n-bearing axial mobility,
Bearing concavity when A-bearing faces up,
Bearing convexity when B-bearing faces up,
A '-bearing back side upwards time bearing concavity,
B '-bearing back side upwards time bearing convexity,
Step 4: apolegamy bearing outer ring spacer,
Measure the bearing block end face distance d to bottom surface, measure the distance e of casing mounting edge end face to convex shoulder, measure a set of in outer race width a1 and b1 of two bearings, the thickness H by following formula determination bearing outer ring spacer:
H＝d-e-a1-b1-0.1
In formula: the thickness of H-bearing outer ring spacer,
The outer race width of two bearings during a1, b1-are a set of,
D-bearing block end face to the distance of bottom surface,
E-casing mounting edge end face to the distance of convex shoulder,
Average bearing clearance between 0.1-bearing face and casing;
Thickness H according to the above-mentioned bearing outer ring spacer determined matches other outer ring spacer of respective sets;
The outer ring spacer matched evenly is chosen some its thickness of measurement, gets the actual (real) thickness H ' of its arithmetic mean of instantaneous value as outer ring spacer;
Step 5: apolegamy bearing inner spacer,
Thickness c by following formula determination bearing inner spacer:
C＝H′+A-B
In formula: the thickness of C-bearing inner spacer,
The actual (real) thickness of H '-outer ring spacer,
Bearing concavity when A-bearing faces up,
Bearing convexity when B-bearing faces up,
Thickness c according to the above-mentioned bearing inner spacer determined matches other cone spacer of respective sets.
Radial activity measuring tool described in step one, comprises the bearing with the first through hole, the vertical direction of bearing arranges the clutch shaft bearing inner sleeve bearing with central through hole, clutch shaft bearing inner sleeve bearing is provided with bearing erecting bed; Arrange in the side of clutch shaft bearing inner sleeve bearing and there is the first pressing plate of the second through hole, after the second through hole of the first screw bolt passes first pressing plate, the central through hole of clutch shaft bearing inner sleeve bearing and the first through hole of bearing, be connected with the first nut; Above clutch shaft bearing inner sleeve bearing, be provided with the first amesdial, the first amesdial is fixed on the first dial framework, and the first dial framework is fixed on bearing; The below of clutch shaft bearing inner sleeve bearing is provided with compactor.
Axial mobility measuring tool described in step 2, comprise the second bearing inner sleeve bearing be arranged on jig platform, second bearing inner sleeve bearing has central through hole, second bearing inner sleeve bearing is provided with bearing erecting bed, second pressing plate with third through-hole is set above the second bearing inner sleeve bearing; The lower end of the second bolt is fixed in the central through hole of the second bearing inner sleeve bearing, and upper end is connected with the second nut through after the third through-hole of the second pressing plate; Above the second pressing plate, be provided with cover plate, the jig platform of the second bearing inner sleeve bearing side arrange the second dial framework and the 3rd dial framework with side head respectively, the second dial framework is fixed with the second amesdial, the 3rd dial framework is fixed with the 3rd amesdial.
The center of described cover plate is provided with locating hole, and described locating hole is corresponding with the upper end of the second bolt.
Beneficial effect of the present invention:
Bearing spacer matching method of the present invention effectively can ensure the correctness that internal space ring and external space ring is matched, and then ensure engine operationally, duplex bearing can bear suitable axial force simultaneously, reduces situation about damaging because single shaft strength is uneven and occurs, effectively ensure that the security of engine operation.
Radial activity measuring tool of the present invention and axial mobility measuring tool, can ensure the accuracy of free state lower bearing footpath, axial mobility measurement, and then ensure that the correctness that internal space ring and external space ring is matched.
Accompanying drawing explanation
Fig. 1 is the structural representation of radial activity measuring tool of the present invention;
Fig. 2 is the structural representation of axial mobility measuring tool of the present invention;
Fig. 3 is the structural representation after the assembling of bearing, bearing block, casing and internal space ring and external space ring;
In figure: 1-bolt, 2-bearing, 3-clutch shaft bearing inner sleeve bearing, 4-first nut, 5-pad, 6-first dial framework, 7-first amesdial, 8-outer race, 9-bearing inner ring, 10-first bolt, 11-first pressing plate, 12-compactor, 13-the 3rd amesdial, 14-cover plate, 15-forcing press, 16-second nut, 17-second pressing plate, 18-second amesdial, 19-second dial framework, 20-second bolt, 21-second bearing inner sleeve, 22-jig platform, 23-bearing block, 24-outer ring spacer, 25-cone spacer, 26-clutch shaft bearing, 27-second bearing, 28-casing, 29-the 3rd dial framework.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
A kind of bearing spacer matching method, comprises the steps:
Step one: adopt radial activity measuring tool to measure the radial activity of bearing, as shown in Figure 1,
Bearing is arranged on the clutch shaft bearing inner sleeve bearing 3 of radial activity measuring tool, with the first pressing plate 11, first bolt 10 and the first nut 4, bearing inner ring 9 is fixed; Rise compactor 12 and compress outer race 8, and measure the radial activity of bearing by the first amesdial 7; Along outer race 8 circumference evenly setting three measurement points (choosing a place every 120 degree), measure the radial activity of bearing of each measurement point respectively; Get the radial minimum of a value of activity of the bearing that records and the mean value of maximum as the radial activity of bearing;
Step 2: adopt axial mobility measuring tool to measure bearing camber, as shown in Figure 2,
Bearing is arranged on the second bearing inner sleeve bearing 21 of axial mobility measuring tool, with the second pressing plate 17, second bolt 20 and the second nut 16, bearing inner ring 9 is fixed; Put cover plate 14, the lower end of cover plate 14 is contacted with outer race 8; Second amesdial 18 is fixed on the second dial framework 19, the 3rd amesdial 13 is fixed on the 3rd dial framework 29, and the gauge head of two dial frameworks is withstood on the upper and lower end face of outer race 8 respectively; Starting pressure machine 15, applies pressure by the force value of setting to cover plate 14, and measures bearing camber by amesdial; Along bearing inner ring 9 circumference evenly setting four measurement points, measure the bearing camber of each measurement point respectively, and calculate its arithmetic mean of instantaneous value A 1 is averageand B 1 is average; Outer race 8 is circumferentially revolved turnback, again measures and calculate A 2 is averageand B 2 is average;
Bearing concavity is determined by following formula:
A=(A 1 is average+ A 2 is average)/2
In formula: bearing concavity when A-bearing faces up,
A 1 is averagethe arithmetic mean of instantaneous value of each measurement point bearing concavity when-bearing faces up,
A 2 is averagethe arithmetic mean of instantaneous value of each measurement point bearing concavity after revolving turnback when-bearing faces up,
Bearing convexity is determined by following formula:
B=(B 1 is average+ B 2 is average)/2
In formula: bearing convexity when B-bearing faces up,
B 1 is averagethe arithmetic mean of instantaneous value of each measurement point bearing convexity when-bearing faces up,
B 2 is averagethe arithmetic mean of instantaneous value of each measurement point bearing convexity after revolving turnback when-bearing faces up,
Bearing is spun upside down, bearing concavity A ' and bearing convexity B ' when determining that the bearing back side upwards as stated above;
Step 3: determine bearing axial mobility,
According to the measurement result of step 2, determine bearing axial mobility, bearing axial mobility is determined by following formula:
n＝(A+B+A′+B′)/2
In formula: n-bearing axial mobility,
Bearing concavity when A-bearing faces up,
Bearing convexity when B-bearing faces up,
A '-bearing back side upwards time bearing concavity,
B '-bearing back side upwards time bearing convexity,
Step 4: apolegamy bearing outer ring spacer 24, as shown in Figure 3,
Measure the distance d of bearing block 23 end face to bottom surface, measure the distance e of casing 28 mounting edge end face to convex shoulder, measure a set of in outer race width a1 and b1 of two bearings (i.e. clutch shaft bearing 26 and the second bearing 27), the thickness H by following formula determination bearing outer ring spacer:
H＝d-e-a1-b1-0.1
In formula: the thickness of H-bearing outer ring spacer,
The outer race width of two bearings during a1, b1-are a set of,
D-bearing block end face to the distance of bottom surface,
E-casing mounting edge end face to the distance of convex shoulder,
Average bearing clearance between 0.1-bearing face and casing;
Thickness H according to the above-mentioned bearing outer ring spacer determined matches other outer ring spacer of respective sets;
The outer ring spacer matched evenly is chosen 4 and measures its thickness, get the actual (real) thickness H ' of its arithmetic mean of instantaneous value as outer ring spacer;
Step 5: apolegamy bearing inner spacer 25,
Thickness c by following formula determination bearing inner spacer:
C＝H′+A-B
In formula: the thickness of C-bearing inner spacer,
The actual (real) thickness of H '-outer ring spacer,
Bearing concavity when A-bearing faces up,
Bearing convexity when B-bearing faces up,
Thickness c according to the above-mentioned bearing inner spacer determined matches other cone spacer of respective sets.
As shown in Figure 1, the radial activity measuring tool described in step one, comprises the bearing 2 with the first through hole, the vertical direction of bearing 2 arranges the clutch shaft bearing inner sleeve bearing 3 with central through hole, clutch shaft bearing inner sleeve bearing 3 is provided with bearing erecting bed; First pressing plate 11 with the second through hole is set in the side of clutch shaft bearing inner sleeve bearing 3, first bolt 10 through after the second through hole of the first pressing plate 11, the central through hole of clutch shaft bearing inner sleeve bearing 3 and the first through hole of bearing 2, is connected with the first nut 4 successively; Above clutch shaft bearing inner sleeve bearing 3, be provided with the first amesdial 7, first amesdial 7 is fixed on the first dial framework 6, and the first dial framework 6 is fixed on bearing 2; The below of clutch shaft bearing inner sleeve bearing 3 is provided with compactor 12.During use, bearing 2 is fixed on fixed mount by bolt 1; The first bolt 10 between bearing 2 and the first nut 4 is provided with pad 5.
As shown in Figure 2, axial mobility measuring tool described in step 2, comprise the second bearing inner sleeve bearing 21 be arranged on jig platform 22, second bearing inner sleeve bearing 21 has central through hole, second bearing inner sleeve bearing 21 is provided with bearing erecting bed, second pressing plate 17 with third through-hole is set above the second bearing inner sleeve bearing 21; The lower end of the second bolt 20 is fixed in the central through hole of the second bearing inner sleeve bearing 21, and upper end is connected with the second nut 16 through after the third through-hole of the second pressing plate 17; Cover plate 14 is provided with above the second pressing plate 17, the jig platform 22 of the second bearing inner sleeve bearing 21 side arranges the second dial framework 19 and the 3rd dial framework 29 with side head respectively, second dial framework 19 is fixed with the second amesdial 18, the 3rd dial framework 29 is fixed with the 3rd amesdial 13.
The center of described cover plate 14 is provided with locating hole, and described locating hole is corresponding with the upper end of the second bolt 20.

Claims (4)

1. a bearing spacer matching method, is characterized in that, comprises the steps:
Step one: adopt radial activity measuring tool to measure the radial activity of bearing,
Bearing is arranged on the clutch shaft bearing inner sleeve bearing of radial activity measuring tool, with the first pressing plate, the first bolt and the first nut, bearing inner ring is fixed; Rise compactor and compress outer race, and measure the radial activity of bearing by the first amesdial; Along outer race circumference evenly several measurement points of setting, measure the radial activity of bearing of each measurement point respectively; Get the radial minimum of a value of activity of the bearing that records and the mean value of maximum as the radial activity of bearing;
Step 2: adopt axial mobility measuring tool to measure bearing camber,
Bearing is arranged on the second bearing inner sleeve bearing of axial mobility measuring tool, with the second pressing plate, the second bolt and the second nut, bearing inner ring is fixed; Put cover plate, the lower end of cover plate is contacted with outer race; Two amesdials are separately fixed on its dial framework, and the gauge head of two dial frameworks is withstood on the upper and lower end face of outer race respectively; Starting pressure machine, applies pressure by the force value of setting to cover plate, and measures bearing camber by amesdial; Along bearing inner ring circumference evenly several measurement points of setting, measure the bearing camber of each measurement point respectively, and calculate its arithmetic mean of instantaneous value A 1 is averageand B 1 is average; Outer race is circumferentially revolved turnback, again measures and calculate A 2 is averageand B 2 is average;
Bearing concavity is determined by following formula:
A=(A 1 is average+ A 2 is average)/2
In formula: bearing concavity when A-bearing faces up,
A 1 is averagethe arithmetic mean of instantaneous value of each measurement point bearing concavity when-bearing faces up,
A 2 is averagethe arithmetic mean of instantaneous value of each measurement point bearing concavity after revolving turnback when-bearing faces up,
Bearing convexity is determined by following formula:
B=(B 1 is average+ B 2 is average)/2
In formula: bearing convexity when B-bearing faces up,
B 1 is averagethe arithmetic mean of instantaneous value of each measurement point bearing convexity when-bearing faces up,
B 2 is averagethe arithmetic mean of instantaneous value of each measurement point bearing convexity after revolving turnback when-bearing faces up,
Bearing is spun upside down, bearing concavity A ' and bearing convexity B ' when determining that the bearing back side upwards as stated above;
Step 3: determine bearing axial mobility,
According to the measurement result of step 2, determine bearing axial mobility, bearing axial mobility is determined by following formula:
n＝(A+B+A′+B′)/2
In formula: n-bearing axial mobility,
Bearing concavity when A-bearing faces up,
Bearing convexity when B-bearing faces up,
A '-bearing back side upwards time bearing concavity,
B '-bearing back side upwards time bearing convexity,
Step 4: apolegamy bearing outer ring spacer,
Measure the bearing block end face distance d to bottom surface, measure the distance e of casing mounting edge end face to convex shoulder, measure a set of in outer race width a1 and b1 of two bearings, the thickness H by following formula determination bearing outer ring spacer:
H＝d-e-a1-b1-0.1
In formula: the thickness of H-bearing outer ring spacer,
The outer race width of two bearings during a1, b1-are a set of,
D-bearing block end face to the distance of bottom surface,
E-casing mounting edge end face to the distance of convex shoulder,
Average bearing clearance between 0.1-bearing face and casing;
Thickness H according to the above-mentioned bearing outer ring spacer determined matches other outer ring spacer of respective sets;
The outer ring spacer matched evenly is chosen some its thickness of measurement, gets the actual (real) thickness H ' of its arithmetic mean of instantaneous value as outer ring spacer;
Step 5: apolegamy bearing inner spacer,
Thickness C by following formula determination bearing inner spacer:
C＝H′+A-B
In formula: the thickness of C-bearing inner spacer,
The actual (real) thickness of H '-outer ring spacer,
Bearing concavity when A-bearing faces up,
Bearing convexity when B-bearing faces up,
Thickness C according to the above-mentioned bearing inner spacer determined matches other cone spacer of respective sets.
2. bearing spacer matching method according to claim 1, it is characterized in that the radial activity measuring tool described in step one, comprise the bearing with the first through hole, the vertical direction of bearing arranges the clutch shaft bearing inner sleeve bearing with central through hole, clutch shaft bearing inner sleeve bearing is provided with bearing erecting bed; Arrange in the side of clutch shaft bearing inner sleeve bearing and there is the first pressing plate of the second through hole, after the second through hole of the first screw bolt passes first pressing plate, the central through hole of clutch shaft bearing inner sleeve bearing and the first through hole of bearing, be connected with the first nut; Above clutch shaft bearing inner sleeve bearing, be provided with the first amesdial, the first amesdial is fixed on the first dial framework, and the first dial framework is fixed on bearing; The below of clutch shaft bearing inner sleeve bearing is provided with compactor.
3. bearing spacer matching method according to claim 1, it is characterized in that the axial mobility measuring tool described in step 2, comprise the second bearing inner sleeve bearing be arranged on jig platform, second bearing inner sleeve bearing has central through hole, second bearing inner sleeve bearing is provided with bearing erecting bed, second pressing plate with third through-hole is set above the second bearing inner sleeve bearing; The lower end of the second bolt is fixed in the central through hole of the second bearing inner sleeve bearing, and upper end is connected with the second nut through after the third through-hole of the second pressing plate; Above the second pressing plate, be provided with cover plate, the jig platform of the second bearing inner sleeve bearing side arrange the second dial framework and the 3rd dial framework with side head respectively, the second dial framework is fixed with the second amesdial, the 3rd dial framework is fixed with the 3rd amesdial.
4. bearing spacer matching method according to claim 3, it is characterized in that the center of the cover plate at described axial mobility measuring tool is provided with locating hole, described locating hole is corresponding with the upper end of the second bolt.
CN201410640127.XA 2014-11-13 2014-11-13 A kind of bearing spacer matching method Active CN104384822B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104384822A true CN104384822A (en) 2015-03-04
CN104384822B CN104384822B (en) 2016-07-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105698659A (en) * 2016-04-22 2016-06-22 贵州黎阳航空动力有限公司 Engine bearing outer ring end surface concave-convex degree measurement device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202468700U (en) * 2011-11-10 2012-10-03 日本精工株式会社 Multi-row rolling bearing
CN202614158U (en) * 2012-05-10 2012-12-19 广东韶钢松山股份有限公司 Device for measuring bearing axial clearance
CN203395009U (en) * 2013-07-12 2014-01-15 浙江正大轴承有限公司 Double-row bearing with novel inner ring
JP2014132186A (en) * 2013-01-07 2014-07-17 Jtekt Corp Bearing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202468700U (en) * 2011-11-10 2012-10-03 日本精工株式会社 Multi-row rolling bearing
CN202614158U (en) * 2012-05-10 2012-12-19 广东韶钢松山股份有限公司 Device for measuring bearing axial clearance
JP2014132186A (en) * 2013-01-07 2014-07-17 Jtekt Corp Bearing device
CN203395009U (en) * 2013-07-12 2014-01-15 浙江正大轴承有限公司 Double-row bearing with novel inner ring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105698659A (en) * 2016-04-22 2016-06-22 贵州黎阳航空动力有限公司 Engine bearing outer ring end surface concave-convex degree measurement device

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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6

Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company

Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6

Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City