WO2004090359A1 - Linearkugellager - Google Patents
Linearkugellager Download PDFInfo
- Publication number
- WO2004090359A1 WO2004090359A1 PCT/EP2004/003191 EP2004003191W WO2004090359A1 WO 2004090359 A1 WO2004090359 A1 WO 2004090359A1 EP 2004003191 W EP2004003191 W EP 2004003191W WO 2004090359 A1 WO2004090359 A1 WO 2004090359A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- balls
- cage
- end faces
- piece
- ball
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/41—Ball cages comb-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0652—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
- F16C29/0654—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls
- F16C29/0659—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3818—Ball cages formed of unconnected segments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/40—Ball cages for multiple rows of balls
Definitions
- the present invention relates to a linear ball bearing with a guide carriage which is guided in a longitudinally displaceable manner on a guide rail
- a linear ball bearing for example, has become known from DE 26 18 535 A1, with a guide carriage which is guided in a longitudinally displaceable manner on a guide rail and is supported on balls on the long sides of the guide rails.
- the balls are on each long side in at least two parallel rows of balls running in endless ball channels arranged All balls are held in cage pieces In a cage piece, a total of four balls are held on all sides, namely two balls from one row and two balls from the other row.
- the cage pieces are designed to be resilient in the running direction or provided with resilient means are mutually contacting end faces of adjacent cage pieces only extend over part of the width of the cage pieces in order to avoid deformation of lobes that encompass the balls.
- the object of the present invention is therefore to provide a linear ball bearing according to the features of the preamble of claim 1, in which this disadvantage
- This problem is solved according to the invention in that the cage piece has exactly two cage pockets for one ball from each of the two rows of balls, that is to say for exactly one pair of balls from both rows of balls, with each cage piece having a convex shape at both ends in the running direction of the balls. formed end faces for contact with end faces of adjacent cage pieces, which end faces extend essentially to the cage pieces
- the invention dispenses with spring elements, as are required in the prior art.
- very narrow deflection radii for the cage pieces are possible, since the cage pieces, when viewed in the direction of travel of the balls, only require a small amount of space.
- the end faces which extend according to the invention to the cage piece sides prevent the risk of the cage pieces tilting to the side
- the two cage pockets of the cage piece are preferably connected to one another in one piece by a web, the web sides of which, facing away from one another and arranged essentially parallel to the running of the balls, are provided with contact surfaces for guiding the cage piece on guide surfaces of the guide carriage.
- the running of the balls through the endless ball channels is ensured perfectly overall, whereby narrow deflection radii for the cage pieces are possible with the linear ball bearing according to the invention
- the end faces of the cage pieces preferably have a partially cylindrical profile, the cylinder axis of which is arranged transversely to the running direction of the balls and parallel to a plane in which the two rows of balls lie on the long side
- FIG. 1 shows a partial sectional view of a linear ball bearing according to the invention
- FIG. 1 a shows a detail of the linear ball bearing from FIG. 1,
- FIG 2 shows the linear ball bearing according to the invention from Figure 1 in one
- FIGS. 1 and 2 show in detail a cage piece of the linear ball bearing according to the invention according to FIGS. 1 and 2
- Figure 4 shows the cage from Figure 3, but with inserted balls and
- FIG 5 several cage pieces arranged one behind the other with inserted balls
- Figures 1, 1a and 2 show a linear ball bearing according to the invention in a sectional and side view.
- a guide carriage 2 On a guide rail 1, a guide carriage 2 is supported by balls 3 with slow displacement.
- the guide carriage 2 contains a total of four rotating rows of balls 4 and 5. On average, only two rows of balls 4 and 5 shown on one side.
- the row of balls 4 is the upper row, while the row of balls 5 is the lower row.
- the guide carriage 2 shown in FIG. 2 is constructed symmetrically.
- the guide rail 1, on which the guide carriage 2 can be displaced in the axial direction, is a profile rail excluded forms The shift is made possible by rolling the balls 3 on the guide rail 1 and the carriage 2
- the balls 3 in the guide carriage 2 rotate in endless ball channels 6.
- the balls 3 could strike against one another during execution without spacers and thus cause noise.
- the balls 3 are replaced by cage pieces 7 separated from each other
- Each ball 3 of one row of balls 4 forms a pair with an adjacent ball 3 of the other row of balls 5, which is held on all sides in cage pockets 8 of a common cage piece 7.
- the cage pockets 8 comprise the balls 3 in the form of a dome.
- the cage piece 7 has exactly two cage pockets 8 for exactly one pair of balls 3 of both rows of balls 4, 5 in the direction of the balls 3, each cage piece 7 is provided at both ends with convexly shaped end faces 9 for contact with the end faces 9 of adjacent cage pieces 7.
- the end faces 9 extend essentially up to the cage piece sides 10, a lateral tilting of a cage piece 10 is avoided since the one cage piece 10 can be supported on the adjacent cage piece 10 in contact with the end faces 9. In other words, in the present case the end faces 9 extend over the entire width of the cage piece 7
- the cage piece 7 is particularly clear in perspective representations in FIGS. 3 and 4 displayed
- FIG. 1 a shows a section of the linear ball bearing according to the invention from FIG. 1.
- One leg 18 of the guide carriage 2 can be seen in this figure.
- the guide faces 15, 16 are formed directly on the leg 18.
- the guide face 14 is formed on a wire 21. det, which is attached to the ends of the carriage 2.
- the guide surface 17 is formed on a cover 19.
- the end faces 9 of the cage piece 7 have a partially cylindrical profile, the cylinder axis of which is arranged transversely to the running direction of the balls 3 and parallel to a plane in which the two rows of balls lie on one long side. End surfaces 9 of mutually adjacent cage pieces 7 touching one another can roll smoothly against one another even in the case of narrow deflection radii without the risk of tilting or lateral deflection.
- FIG. 5 shows several of the cage pieces 7 arranged one behind the other, the end faces 9 of which touch one another.
- the flat webs 11 together form an endless web band 20.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04723535A EP1613868B1 (de) | 2003-04-11 | 2004-03-26 | Linearkugellager |
DE502004002238T DE502004002238D1 (de) | 2003-04-11 | 2004-03-26 | Linearkugellager |
US10/552,341 US7611285B2 (en) | 2003-04-11 | 2004-03-26 | Linear ball bearing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10317049.9 | 2003-04-11 | ||
DE10317049A DE10317049A1 (de) | 2003-04-11 | 2003-04-11 | Linearkugellager |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004090359A1 true WO2004090359A1 (de) | 2004-10-21 |
Family
ID=33016305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/003191 WO2004090359A1 (de) | 2003-04-11 | 2004-03-26 | Linearkugellager |
Country Status (5)
Country | Link |
---|---|
US (1) | US7611285B2 (de) |
EP (1) | EP1613868B1 (de) |
DE (2) | DE10317049A1 (de) |
ES (1) | ES2275215T3 (de) |
WO (1) | WO2004090359A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005019286A1 (de) * | 2005-04-26 | 2006-11-09 | Schaeffler Kg | Abstandhalter für Wälzkörper |
DE102011017752B4 (de) * | 2011-04-29 | 2013-03-14 | Aktiebolaget Skf | Gliederkettenkäfig |
CN104214223B (zh) * | 2014-08-11 | 2016-08-17 | 洛阳维斯格轴承有限公司 | 一种改进的轴承环形弹锁式保持架结构 |
JP7352167B2 (ja) * | 2019-11-05 | 2023-09-28 | 株式会社アイシン | 駆動装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2618535A1 (de) * | 1976-04-28 | 1977-11-10 | Schaeffler Ohg Industriewerk | Waelzlager zur laengsbeweglichen lagerung eines teiles mit einer geraden laufflaeche |
US5927858A (en) * | 1997-04-04 | 1999-07-27 | Nippon Thompson Co., Ltd. | Linear motion rolling guide unit |
DE10049578A1 (de) * | 2000-10-06 | 2002-04-11 | Ina Schaeffler Kg | Führungsband für ein Wälzlager |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB283925A (en) * | 1927-01-20 | 1928-08-09 | Cie Applic Mecaniques | Improvements in or relating to ball bearings |
DE1866122U (de) * | 1962-11-29 | 1963-01-24 | Rothe Erde Eisenwerk | Kunststoffkaefig fuer waelzlager. |
CH416228A (de) * | 1963-03-28 | 1966-06-30 | Zaugg Werner | Wälzlager |
NL176969C (nl) * | 1974-02-06 | 1985-07-01 | Skf Ind Trading & Dev | Lagerkooi. |
US5657956A (en) * | 1995-08-14 | 1997-08-19 | Idea Development, Engineering And Service, Inc. | Thrust bearing and use of same with apparatus for reducing repetitive stress injury |
JP4256003B2 (ja) * | 1999-01-29 | 2009-04-22 | Thk株式会社 | 転動体保持スペーサー及びこれを用いた直線運動装置 |
-
2003
- 2003-04-11 DE DE10317049A patent/DE10317049A1/de not_active Withdrawn
-
2004
- 2004-03-26 WO PCT/EP2004/003191 patent/WO2004090359A1/de active IP Right Grant
- 2004-03-26 DE DE502004002238T patent/DE502004002238D1/de not_active Expired - Lifetime
- 2004-03-26 EP EP04723535A patent/EP1613868B1/de not_active Expired - Lifetime
- 2004-03-26 US US10/552,341 patent/US7611285B2/en not_active Expired - Fee Related
- 2004-03-26 ES ES04723535T patent/ES2275215T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2618535A1 (de) * | 1976-04-28 | 1977-11-10 | Schaeffler Ohg Industriewerk | Waelzlager zur laengsbeweglichen lagerung eines teiles mit einer geraden laufflaeche |
US5927858A (en) * | 1997-04-04 | 1999-07-27 | Nippon Thompson Co., Ltd. | Linear motion rolling guide unit |
DE10049578A1 (de) * | 2000-10-06 | 2002-04-11 | Ina Schaeffler Kg | Führungsband für ein Wälzlager |
Also Published As
Publication number | Publication date |
---|---|
DE502004002238D1 (de) | 2007-01-18 |
ES2275215T3 (es) | 2007-06-01 |
US7611285B2 (en) | 2009-11-03 |
US20060210204A1 (en) | 2006-09-21 |
EP1613868A1 (de) | 2006-01-11 |
EP1613868B1 (de) | 2006-12-06 |
DE10317049A1 (de) | 2004-10-21 |
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