CN105090275A - Novel hydraulic separation bearing assembly - Google Patents

Novel hydraulic separation bearing assembly Download PDF

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Publication number
CN105090275A
CN105090275A CN201510550783.5A CN201510550783A CN105090275A CN 105090275 A CN105090275 A CN 105090275A CN 201510550783 A CN201510550783 A CN 201510550783A CN 105090275 A CN105090275 A CN 105090275A
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CN
China
Prior art keywords
sliding sleeve
seal ring
upper sliding
piston
bearing
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.)
Pending
Application number
CN201510550783.5A
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Chinese (zh)
Inventor
项公付
王秋
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.)
Lead A Happy Family Life Automobile Bearing Ltd Co In Sky Wenzhou
Original Assignee
Lead A Happy Family Life Automobile Bearing Ltd Co In Sky Wenzhou
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 Lead A Happy Family Life Automobile Bearing Ltd Co In Sky Wenzhou filed Critical Lead A Happy Family Life Automobile Bearing Ltd Co In Sky Wenzhou
Priority to CN201510550783.5A priority Critical patent/CN105090275A/en
Publication of CN105090275A publication Critical patent/CN105090275A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a novel hydraulic separation bearing assembly. The novel hydraulic separation bearing assembly comprises a clamping ring, a check ring, a bearing, an upper sliding sleeve, a connecting piston, a Y-shaped sealing ring, a spring, a base and a middle casing pipe. The middle casing pipe is sleeved with the upper sliding sleeve and the connecting piston capable of reciprocating in the axial direction of the middle casing pipe. The upper sliding sleeve and the connecting piston are distributed in the axial direction of the middle casing pipe. The upper sliding sleeve is arranged at the end outside the middle casing pipe. The middle casing pipe is sleeved with the bearing. The end, away from the upper sliding sleeve, of the connecting piston is provided with the Y-shaped sealing ring capable of reciprocating along with the connecting piston. The clamping ring is arranged at the end, sleeved with the upper sliding sleeve, of the middle casing pipe. The clamping ring is clamped into the inner wall of the middle casing pipe. The bearing is arranged on an outer sliding sleeve installation boss. The bearing and the upper sliding sleeve are fixedly matched and installed. A spring base is arranged at the lower end of the clamping ring. A spring is arranged between the lower end of the spring base and the upper end of the base. According to the novel hydraulic separation bearing assembly, convenience is brought to driving, operation is stable, separation is smooth, abrasion is reduced, and the service life is prolonged.

Description

Novel hydraulic release bearing assembly
Technical field
The present invention relates to automobile hydraulic release bearing technical field, be specifically related to a kind of novel hydraulic release bearing assembly.
Background technique
Along with developing rapidly of Domestic Automotive Industry, current automobile just towards light, structure is tightly played, acceleration performance is good, comfortable durable and high reliability future development, also to march toward small-sized, long lifetime, lightweight, high reliability future development as the important spare part-clutch of car transmissions and bearing unit thereof.Clutch release bearing is from without aligning performance, the low speed unit that outer ring rotation, foundry goods axle sleeve inner ring and cylinder sleeve are integrated, develop into and there is Self-aligning performance, Internal and external cycle can rotary punching part lasso and axle sleeve or plastics sliding sleeve and base be integrated high speed, its weight saving of high reliability bearing unit, cost greatly declines and achieves componentization, lightweight, high reliability and serviceability.
Because of the release bearing in automobile clutch, be the single use parts of semitight, and will hang lower speed changer when changing, pull down transmission shaft and bottom plate of driving cab could operate, waste money again consuming time of taking a lot of work, extremely bothers.Find through putting into practice our for many years, release bearing perishable, working life is short mainly because starved lubrication wearing and tearing, the too high generation of operating temperature are overheated in fact, the short or overload of stroke, and long-time stopping using produces corrosion and bring inconvenience in the majority to driver for this reason.And there is very large breakthrough in our company to clutch release bearing structure selection technique in introduction with independent research, thus to driving bring conveniently make its smooth operation, be separated gentle, reduce wear, increase the service life, adopt liquid-working-medium actuator-hydraulic pressure separating bearing.This product has the wide market space and economic benefit.Constituent elements with regard to existing market hydraulic pressure separating bearing about the same these.Most company adopts plastics sliding sleeve, stamping part parcel flange form occurs, but this parcel mode can produce a lot of drawback, parcel as stamping part can make plastic sheath deformation, stamping part parcel loosely produces and comes off, flange too mandrel holds and can not dial motionless by aligning, the problem of working of plastics processing technology, so be difficult to control for the parts slide bushing assembly of hydraulic pressure separating bearing most critical core, assembly problem etc. we on the market and related data be all occur in this structure, be difficult to reach requirement according to existing stamping process figure stamping part draw-in groove size, draw-in groove size is not held y-type seal ring and is just easily produced obscission, because seal ring opens to move up and down at axle sleeve by shirt rim in draw-in groove form closed cylinder body with base inner diameter, hold according to mechanical characteristic draw-in groove size and badly cause the y-type seal ring generation that comes off to ooze and let out, also just mean and can not use.
Summary of the invention
In view of this, technical problem to be solved by this invention is: provide a kind of and be separated novel hydraulic release bearing assembly that is gentle, long service life.
In order to achieve the above object, the present invention adopts following technological scheme to realize: a kind of novel hydraulic release bearing assembly, wherein: comprise collar, back-up ring, bearing, upper sliding sleeve, connect piston, y-type seal ring, spring, base, middle sleeve, be arranged with outside described middle pipe box upper sliding sleeve and can along in the axially reciprocating connection piston of pipe box, described upper sliding sleeve is arranged with the axial distribution being connected pipe box in piston edge, described upper sliding sleeve is arranged on the end outside middle pipe box, bearing is arranged with outside described middle pipe box, described connection plunger backer is provided with from one end of upper sliding sleeve can with the y-type seal ring connecting piston reciprocates, the end that described middle pipe box is arranged with one end of upper sliding sleeve is provided with collar, described collar snaps in middle pipe box inwall, collar deviates from and connects one end of piston and be provided with collar flange radially, the end of described collar flange and described middle pipe box offsets, in described collar flange edge, pipe box radially extends, upper sliding sleeve positive stop lug boss is provided with inside described upper sliding sleeve, described upper sliding sleeve positive stop lug boss coordinates with described collar flange is spacing, described upper sliding sleeve deviates from the one end connecting piston and is provided with the outer installation base of sliding sleeve, the outer installation base of described sliding sleeve is positioned at the outside of the end of upper sliding sleeve, described bearing is arranged on the outer installation base of sliding sleeve, described bearing is installed by a back-up ring and upper sliding sleeve secure fit, the lower end of described collar is provided with spring seat, spring is provided with between the lower end of described spring seat and the upper end of described base.
As preferably: described y-type seal ring comprises and is positioned at inner Y type rubber body, and coating is connected to the elm juice layer of described Y type rubber body outside.The effect of elm juice is; after it is coated on Y type rubber body; protection " shell " is formed at skin; effectively can improve the wear resistance of rubber, make its longer service life, frequently need not change y-type seal ring; cost of material and manual maintenance's cost are greatly saved; and elm juice does not only affect sealing, the contact tightness of rubber and middle sleeve can also be improved further, greatly improve sealing.
As preferably: the internal face of described connection piston and outer wall be respectively equipped with groove, described groove internal fixtion is connected with anti-wear gasket, and the hardness of described anti-wear gasket is less than the hardness of described connection piston.The design of groove and anti-wear gasket, can solve in prior art the technical problem connecting the inside and outside wall of piston and easily occur to wear and tear; The technical goal reducing to connect piston wear can be reached, thus realize the technique effect in prolongation product working life.
As preferably: described groove is the spiral groove arranged centered by described connection piston axes and along described connection piston radial.Spiral-shaped groove more easily makes, and anti-wear gasket also directly can be made identical with this helical groove shape and sizable spiral-shaped (spring after similar stretching is the same), to be then correspondingly pressed in helical groove and fixing.
As preferably: be provided with dust-proof cover outside described upper sliding sleeve.After adopting above-mentioned preferred version, dustproof effect can be played.
As preferably: the internal diameter of described seal ring fixed groove is increased to connecting piston direction gradually by y-type seal ring, the external diameter of described seal ring fixed block is increased to connecting piston gradually by y-type seal ring, be connected with V-type ribs in the horizontal direction between the described seal ring shirt rim of both sides, between described V-type ribs and the described seal ring shirt rim of the both sides above it, be connected to form quadrilateral structure.After adopting above-mentioned preferred version, utilize the phenomenon that y-type seal ring can avoid y-type seal ring to come off in active procedure with the engaging of the external diameter with internal diameter that are connected piston.Install more firm, form the supporting structure of quadrilateral between ribs and shirt rim simultaneously, effectively can not only strengthen the support force of shirt rim, ensure excellent sealing, avoid the drawback that employing " one " shape ribs and shirt rim form triangular support structure, triangle had good stability, greatly can affect the elastic strain performance of shirt rim after connection simultaneously, sealing can be made on the contrary to be deteriorated, even to make the slippage of connection piston adopt obstruction.
As preferably: the steel ball that described bearing comprises bearing outer ring, bearing inner race and is arranged between bearing inner race and bearing outer ring, described bearing inner race is provided with inner ring assembly department, described bearing outer ring is provided with outer ring assembly department, described inner ring assembly department is extended towards the outer installation base of sliding sleeve, described outer ring assembly department is extended towards the outer installation base of sliding sleeve, and described outer ring assembly department and inner ring assembly department and sliding sleeve outward installation base offset.
As preferably: described y-type seal ring be connected piston coaxial and arrange, described connection piston is provided with seal ring fixed groove by the side of y-type seal ring, described y-type seal ring can seal ring fixed block in embedding sealing circle fixed groove by connecting that the side of piston is provided with, described y-type seal ring deviates from the side connecting piston and is provided with seal ring shirt rim, described seal ring shirt rim towards extension in the radial direction of middle pipe box, described seal ring shirt rim towards the side that middle pipe box extends and described in pipe box outer side wall offset.After adopting above-mentioned preferred version, y-type seal ring is installed detachably with the cooperation being connected piston, installs more firm simultaneously.
As shown from the above technical solution, the invention has the beneficial effects as follows:
Compared to existing technology, novel hydraulic release bearing assembly of the present invention brings conveniently to driving, makes its smooth operation, is separated gentle, reduce wear, increase the service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is decomposition texture schematic diagram of the present invention.
Embodiment
In order to make those skilled in the art can further understand feature of the present invention and technology contents, refer to following detailed description for the present invention and accompanying drawing.
Refer to shown in Fig. 1 and Fig. 2, the invention provides a kind of novel hydraulic release bearing assembly, wherein: comprise collar 3, back-up ring 1, bearing 2, upper sliding sleeve 4, connect piston 7, y-type seal ring 8, spring 9, base 6, middle sleeve 10, be arranged with outside described middle pipe box upper sliding sleeve and can along in the axially reciprocating connection piston of pipe box, described upper sliding sleeve is arranged with the axial distribution being connected pipe box in piston edge, described upper sliding sleeve is arranged on the end outside middle pipe box, bearing is arranged with outside described middle pipe box, described connection plunger backer is provided with from one end of upper sliding sleeve can with the y-type seal ring connecting piston reciprocates, the end that described middle pipe box is arranged with one end of upper sliding sleeve is provided with collar, described collar snaps in middle pipe box inwall, collar deviates from and connects one end of piston and be provided with collar flange radially, the end of described collar flange and described middle pipe box offsets, in described collar flange edge, pipe box radially extends, upper sliding sleeve positive stop lug boss is provided with inside described upper sliding sleeve, described upper sliding sleeve positive stop lug boss coordinates with described collar flange is spacing, described upper sliding sleeve deviates from the one end connecting piston and is provided with the outer installation base of sliding sleeve, the outer installation base of described sliding sleeve is positioned at the outside of the end of upper sliding sleeve, described bearing is arranged on the outer installation base of sliding sleeve, described bearing is installed by a back-up ring and upper sliding sleeve secure fit, the lower end of described collar is provided with spring seat, spring is provided with between the lower end of described spring seat and the upper end of described base.
2. novel hydraulic release bearing assembly according to claim 1, is characterized in that: described y-type seal ring comprises the Y type rubber body being positioned at inside, and coating is connected to the elm juice layer (not shown) of described Y type rubber body outside.The effect of elm juice is; after it is coated on Y type rubber body; protection " shell " is formed at skin; effectively can improve the wear resistance of rubber, make its longer service life, frequently need not change y-type seal ring; cost of material and manual maintenance's cost are greatly saved; and elm juice does not only affect sealing, the contact tightness of rubber and middle sleeve can also be improved further, greatly improve sealing.
As preferably: the internal face of described connection piston and outer wall be respectively equipped with groove (not shown), described groove internal fixtion is connected with anti-wear gasket (not shown), and the hardness of described anti-wear gasket is less than the hardness of described connection piston.The design of groove and anti-wear gasket, can solve in prior art the technical problem connecting the inside and outside wall of piston and easily occur to wear and tear; The technical goal reducing to connect piston wear can be reached, thus realize the technique effect in prolongation product working life.
As preferably: described groove is the spiral groove arranged centered by described connection piston axes and along described connection piston radial.Its large somesthesia is just as the rotational structure on common sewer pipe fitting inwall, but in the present invention, it is groove along wall rotated shape and internal fixtion is connected with anti-wear gasket.Wherein, described anti-wear gasket is preferably elastic material, under without external force condition, protrude described groove, and described anti-wear gasket cross section is O shape, square, rhombus or Hexagon, is preferably Hexagon, and when adopting Hexagon through recording, effect is best.Spiral-shaped groove more easily makes, and anti-wear gasket also directly can be made identical with this helical groove shape and sizable spiral-shaped (spring after similar stretching is the same), to be then correspondingly pressed in helical groove and fixing.
As preferably: be provided with dust-proof cover 5 outside described upper sliding sleeve.After adopting above-mentioned preferred version, dustproof effect can be played.
As preferably: the internal diameter of described seal ring fixed groove is increased to connecting piston direction gradually by y-type seal ring, the external diameter of described seal ring fixed block is increased to connecting piston gradually by y-type seal ring, be connected with V-type ribs in the horizontal direction between the described seal ring shirt rim of both sides, between described V-type ribs and the described seal ring shirt rim of the both sides above it, be connected to form quadrilateral structure.After adopting above-mentioned preferred version, utilize the phenomenon that y-type seal ring can avoid y-type seal ring to come off in active procedure with the engaging of the external diameter with internal diameter that are connected piston.Install more firm, form the supporting structure of quadrilateral between ribs and shirt rim simultaneously, effectively can not only strengthen the support force of shirt rim, ensure excellent sealing, avoid the drawback that employing " one " shape ribs and shirt rim form triangular support structure, triangle had good stability, greatly can affect the elastic strain performance of shirt rim after connection simultaneously, sealing can be made on the contrary to be deteriorated, even to make the slippage of connection piston adopt obstruction.
As preferably: the steel ball that described bearing comprises bearing outer ring, bearing inner race and is arranged between bearing inner race and bearing outer ring, described bearing inner race is provided with inner ring assembly department, described bearing outer ring is provided with outer ring assembly department, described inner ring assembly department is extended towards the outer installation base of sliding sleeve, described outer ring assembly department is extended towards the outer installation base of sliding sleeve, and described outer ring assembly department and inner ring assembly department and sliding sleeve outward installation base offset.
As preferably: described y-type seal ring be connected piston coaxial and arrange, described connection piston is provided with seal ring fixed groove by the side of y-type seal ring, described y-type seal ring can seal ring fixed block in embedding sealing circle fixed groove by connecting that the side of piston is provided with, described y-type seal ring deviates from the side connecting piston and is provided with seal ring shirt rim, described seal ring shirt rim towards extension in the radial direction of middle pipe box, described seal ring shirt rim towards the side that middle pipe box extends and described in pipe box outer side wall offset.After adopting above-mentioned preferred version, y-type seal ring is installed detachably with the cooperation being connected piston, installs more firm simultaneously.Also comprise injection molded elastomer part 11, base seal circle 12 and iron cushion cover 13 in figure, this is known technology, does not add detailed description at this.
Wherein connect piston and be provided with seal ring fixed groove 14 by the side of y-type seal ring, y-type seal ring is provided with by the side of connection piston can seal ring fixed block 15 in embedding sealing circle fixed groove 14.Y-type seal ring deviates from the side connecting piston and is provided with seal ring shirt rim 16, and seal ring shirt rim 16 is towards extension in the radial direction of middle pipe box, and seal ring shirt rim 16 offsets towards the side that middle pipe box extends and middle pipe box outer side wall.
The internal diameter of seal ring fixed groove 14 is increased to connecting piston direction gradually by y-type seal ring, and the external diameter of seal ring fixed block 15 is increased to connecting piston gradually by y-type seal ring.Be connected with V-type ribs (not shown) in the horizontal direction between the described seal ring shirt rim of both sides, between described V-type ribs and the described seal ring shirt rim of the both sides above it, be connected to form quadrilateral structure.The end that middle pipe box is arranged with one end of upper sliding sleeve is provided with collar, collar snaps in middle pipe box inwall, collar deviates from and connects one end of piston and be provided with collar flange 17 radially, collar flange 17 offsets with the end of middle pipe box, collar flange 1.7 along in pipe box radially extend, be provided with upper sliding sleeve positive stop lug boss 18 inside upper sliding sleeve, upper sliding sleeve positive stop lug boss 18 coordinates with collar flange 17 is spacing.
Upper sliding sleeve deviates from the one end connecting piston and is provided with the outer installation base 19 of sliding sleeve, and the outer installation base 19 of sliding sleeve is positioned at the outside of the end of upper sliding sleeve, and bearing is arranged on the outer installation base 19 of sliding sleeve, and bearing is installed by a back-up ring and upper sliding sleeve secure fit.The steel ball that bearing comprises bearing outer ring, bearing inner race and is arranged between bearing inner race and bearing outer ring.Dust-proof cover is provided with outside upper sliding sleeve.One end that middle pipe box deviates from upper sliding sleeve is provided with bottom sealing device.
But the foregoing is only better possible embodiments of the present invention, and be not used to limit to the scope of the claims of the present invention, therefore the equivalent structure change that all utilizations specification of the present invention and accompanying drawing content are done, all in like manner within the scope of the present invention.

Claims (8)

1. a novel hydraulic release bearing assembly, it is characterized in that: comprise collar, back-up ring, bearing, upper sliding sleeve, connect piston, y-type seal ring, spring, base, middle sleeve, be arranged with outside described middle pipe box upper sliding sleeve and can along in the axially reciprocating connection piston of pipe box, described upper sliding sleeve is arranged with the axial distribution being connected pipe box in piston edge, described upper sliding sleeve is arranged on the end outside middle pipe box, bearing is arranged with outside described middle pipe box, described connection plunger backer is provided with from one end of upper sliding sleeve can with the y-type seal ring connecting piston reciprocates, the end that described middle pipe box is arranged with one end of upper sliding sleeve is provided with collar, described collar snaps in middle pipe box inwall, collar deviates from and connects one end of piston and be provided with collar flange radially, the end of described collar flange and described middle pipe box offsets, in described collar flange edge, pipe box radially extends, upper sliding sleeve positive stop lug boss is provided with inside described upper sliding sleeve, described upper sliding sleeve positive stop lug boss coordinates with described collar flange is spacing, described upper sliding sleeve deviates from the one end connecting piston and is provided with the outer installation base of sliding sleeve, the outer installation base of described sliding sleeve is positioned at the outside of the end of upper sliding sleeve, described bearing is arranged on the outer installation base of sliding sleeve, described bearing is installed by a back-up ring and upper sliding sleeve secure fit, the lower end of described collar is provided with spring seat, spring is provided with between the lower end of described spring seat and the upper end of described base.
2. novel hydraulic release bearing assembly according to claim 1, is characterized in that: described y-type seal ring comprises the Y type rubber body being positioned at inside, and coating is connected to the elm juice layer of described Y type rubber body outside.
3. novel hydraulic release bearing assembly according to claim 2, it is characterized in that: the internal face of described connection piston and outer wall be respectively equipped with groove, described groove internal fixtion is connected with anti-wear gasket, and the hardness of described anti-wear gasket is less than the hardness of described connection piston.
4. novel hydraulic release bearing assembly according to claim 3, is characterized in that: described groove is the spiral groove arranged centered by described connection piston axes and along described connection piston radial.
5. novel hydraulic release bearing assembly according to claim 4, is characterized in that: be provided with dust-proof cover outside described upper sliding sleeve.
6. novel hydraulic release bearing assembly according to claim 5, it is characterized in that: the internal diameter of described seal ring fixed groove is increased to connecting piston direction gradually by y-type seal ring, the external diameter of described seal ring fixed block is increased to connecting piston gradually by y-type seal ring, be connected with V-type ribs in the horizontal direction between the described seal ring shirt rim of both sides, between described V-type ribs and the described seal ring shirt rim of the both sides above it, be connected to form quadrilateral structure.
7. novel hydraulic release bearing assembly according to claim 6, it is characterized in that: the steel ball that described bearing comprises bearing outer ring, bearing inner race and is arranged between bearing inner race and bearing outer ring, described bearing inner race is provided with inner ring assembly department, described bearing outer ring is provided with outer ring assembly department, described inner ring assembly department is extended towards the outer installation base of sliding sleeve, described outer ring assembly department is extended towards the outer installation base of sliding sleeve, and described outer ring assembly department and inner ring assembly department and sliding sleeve outward installation base offset.
8. novel hydraulic release bearing assembly according to claim 7, it is characterized in that: described y-type seal ring be connected piston coaxial arrange, described connection piston is provided with seal ring fixed groove by the side of y-type seal ring, described y-type seal ring can seal ring fixed block in embedding sealing circle fixed groove by connecting that the side of piston is provided with, described y-type seal ring deviates from the side connecting piston and is provided with seal ring shirt rim, described seal ring shirt rim is towards extension in the radial direction of middle pipe box, described seal ring shirt rim towards the side that middle pipe box extends and described in pipe box outer side wall offset.
CN201510550783.5A 2015-09-02 2015-09-02 Novel hydraulic separation bearing assembly Pending CN105090275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510550783.5A CN105090275A (en) 2015-09-02 2015-09-02 Novel hydraulic separation bearing assembly

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Application Number Priority Date Filing Date Title
CN201510550783.5A CN105090275A (en) 2015-09-02 2015-09-02 Novel hydraulic separation bearing assembly

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CN105090275A true CN105090275A (en) 2015-11-25

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2088703A (en) * 1935-11-02 1937-08-03 Garlock Packing Co Machinery packing
US2183004A (en) * 1937-10-29 1939-12-12 Donald A Boyd Seal
US6076645A (en) * 1996-03-04 2000-06-20 Ina Walzlager Schaeffler Ohg Ring piston seal for a hydraulically controlled disconnect system
CN201190794Y (en) * 2008-04-25 2009-02-04 淄博爱科密封件有限公司 Combination special shape sealing element
CN203035943U (en) * 2012-12-30 2013-07-03 浙江吉尚汽车部件有限公司 Annular piston assembly and clutch release bearing
CN203948515U (en) * 2014-07-21 2014-11-19 温州天纳福汽车轴承股份有限公司 A kind of hydraulic pressure separating bearing of good airproof performance
CN203948513U (en) * 2014-07-21 2014-11-19 温州天纳福汽车轴承股份有限公司 A kind of hydraulic pressure separating bearing with Split piston
CN204921761U (en) * 2015-09-02 2015-12-30 温州天纳福汽车轴承股份有限公司 Novel hydraulic release bearing assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2088703A (en) * 1935-11-02 1937-08-03 Garlock Packing Co Machinery packing
US2183004A (en) * 1937-10-29 1939-12-12 Donald A Boyd Seal
US6076645A (en) * 1996-03-04 2000-06-20 Ina Walzlager Schaeffler Ohg Ring piston seal for a hydraulically controlled disconnect system
CN201190794Y (en) * 2008-04-25 2009-02-04 淄博爱科密封件有限公司 Combination special shape sealing element
CN203035943U (en) * 2012-12-30 2013-07-03 浙江吉尚汽车部件有限公司 Annular piston assembly and clutch release bearing
CN203948515U (en) * 2014-07-21 2014-11-19 温州天纳福汽车轴承股份有限公司 A kind of hydraulic pressure separating bearing of good airproof performance
CN203948513U (en) * 2014-07-21 2014-11-19 温州天纳福汽车轴承股份有限公司 A kind of hydraulic pressure separating bearing with Split piston
CN204921761U (en) * 2015-09-02 2015-12-30 温州天纳福汽车轴承股份有限公司 Novel hydraulic release bearing assembly

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Application publication date: 20151125