CA2030018A1 - Linear motion ball bearing - Google Patents

Linear motion ball bearing

Info

Publication number
CA2030018A1
CA2030018A1 CA2030018A CA2030018A CA2030018A1 CA 2030018 A1 CA2030018 A1 CA 2030018A1 CA 2030018 A CA2030018 A CA 2030018A CA 2030018 A CA2030018 A CA 2030018A CA 2030018 A1 CA2030018 A1 CA 2030018A1
Authority
CA
Canada
Prior art keywords
ball
duct
adjacent
balls
retainer
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.)
Granted
Application number
CA2030018A
Other languages
French (fr)
Other versions
CA2030018C (en
Inventor
Alison Ng
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.)
TGA North America Holdings III Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2030018A1 publication Critical patent/CA2030018A1/en
Application granted granted Critical
Publication of CA2030018C publication Critical patent/CA2030018C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
    • F16C29/0683—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque
    • F16C29/0685—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls
    • F16C29/0688—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls whereby a sleeve surrounds the circulating balls and thicker part of the sleeve form the load bearing tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

ABSTRACT
A linear motion ball bearing is disclosed for providing relative linear motion in combination with a shaft. A housing has an axially elongated opening therethrough and an axially elongated generally tubular shaped ball retainer is positioned within the housing opening and defines a plurality of endless ball loops therein extending generally in the axial direction of the retainer. The retainer has a radially inner surface and a radially outer surface and the ball loops are spaced generally circumferentially about the retainer. Each loop contains a plurality of balls and has a first ball duct for a row of loaded balls and a second ball duct for a row of unloaded balls. Each first ball duct is open through the radially inner and radially outer surfaces of the cage, and each ball loop is arranged with the first ball duct next adjacent the first ball duct in the adjacent ball loop along one axially extending side and the second ball duct wherein adjacent the second ball duct in the next adjacent ball loop along the other axially extending side. The housing defines a land opposite each pair of adjacent first ball ducts and extending radially inward, each land extending sufficiently radially inward and being of sufficient circumferential dimension to support the loaded balls of adjacent pairs of the first ball ducts and having a contoured relatively smooth surface for accommodating the loaded balls positioned within the corresponding opposed pair of respective first ball ducts of respectively adjacent ball loops. A uniquely shaped complex ball support surface connects each pair of ball ducts while maintaining constant floor to ceiling height about the balls to provide smooth, quiet operation of the bearing so as to combine with the uniform loaded ball arrangement to provide a unique bearing having improved load life performance and substantially quiet characteristics, while simplifying the manufacturing procedures.
CA002030018A 1989-11-22 1990-11-15 Linear motion ball bearing Expired - Lifetime CA2030018C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/440,973 1989-11-22
US07/440,973 US5046862A (en) 1989-11-22 1989-11-22 Linear motion ball bearing

Publications (2)

Publication Number Publication Date
CA2030018A1 true CA2030018A1 (en) 1991-05-23
CA2030018C CA2030018C (en) 1993-08-10

Family

ID=23750971

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002030018A Expired - Lifetime CA2030018C (en) 1989-11-22 1990-11-15 Linear motion ball bearing

Country Status (7)

Country Link
US (1) US5046862A (en)
EP (1) EP0430573B1 (en)
JP (1) JPH03186610A (en)
BR (1) BR9005914A (en)
CA (1) CA2030018C (en)
DE (1) DE69026577T2 (en)
MX (1) MX170266B (en)

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* Cited by examiner, † Cited by third party
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US5138862A (en) * 1991-08-27 1992-08-18 Ball Corporation Ram guidance system
US5221145A (en) * 1992-01-17 1993-06-22 Rmb Roulements Miniatures Linear bearing
US5558442A (en) * 1993-07-20 1996-09-24 Thomson Industries, Inc. Linear motion bearing assembly
US5346313A (en) 1993-07-20 1994-09-13 Thomson Industries, Inc. Linear motion bearing assembly
US5669716A (en) * 1995-03-14 1997-09-23 Hiwin Technologies Corporation Linear ball bearing
US5613780A (en) * 1995-06-29 1997-03-25 Thomson Industries, Inc. Linear motion bearing assembly
US5829882A (en) * 1996-11-14 1998-11-03 Thomson Ind Inc Linear motion bearing assembly
AU1092000A (en) 1998-10-27 2000-05-15 Thomson Industries Inc. Nested track bearing
JP4794865B2 (en) * 2005-02-04 2011-10-19 株式会社リコー Image forming apparatus
JP5229604B2 (en) 2007-01-12 2013-07-03 株式会社リコー Image forming apparatus
EP2037329B1 (en) 2007-09-13 2014-07-02 Ricoh Company, Ltd. Image forming apparatus belt unit, and belt driving control method
JP5234412B2 (en) 2008-04-08 2013-07-10 株式会社リコー Belt drive device and image forming apparatus
JP5288247B2 (en) 2008-06-24 2013-09-11 株式会社リコー Image forming apparatus and image forming method
JP2010112516A (en) * 2008-11-10 2010-05-20 Jtekt Corp Ball spline
EP2278410B1 (en) 2009-07-14 2015-10-07 Ricoh Company, Ltd. Image forming apparatus capable of reducing image expansion and contraction
US9689426B2 (en) 2010-07-15 2017-06-27 Thomson Industries Inc. Linear motion bearing with modular bearing segments
WO2012009625A1 (en) 2010-07-15 2012-01-19 Thomson Industries, Inc. Linear bearing with nested bearing tracks
BR112013001038A2 (en) 2010-07-15 2016-05-24 Thomson Ind Inc linear bearing containing improved outer crankcase sleeve
WO2012015881A1 (en) * 2010-07-28 2012-02-02 Thomson Industries Inc. Linear motion bearing system with self-aligning rail
CN103742532B (en) * 2013-12-31 2016-08-17 广州市昊志机电股份有限公司 A kind of ball spline pair
US9091301B2 (en) * 2014-01-02 2015-07-28 Hiwin Technologies Corp. Deflecting device for ball spline device
JP6580347B2 (en) * 2015-03-04 2019-09-25 日本トムソン株式会社 Linear bushing
RU2626432C1 (en) * 2016-05-16 2017-07-27 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Ball sleeve
CN110469582B (en) * 2019-08-20 2020-11-03 南京工程学院 Modular from self-lubricating linear bearing that dispels heat

Family Cites Families (23)

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Publication number Priority date Publication date Assignee Title
DE7345379U (en) * 1975-06-26 Skf Kugellagerfab Gmbh Linear Bushing
US2576269A (en) * 1946-01-30 1951-11-27 John B Thomson Ball bearing
US2509749A (en) * 1946-06-07 1950-05-30 John B Thomson Ball bearing for linear motion
US2503009A (en) * 1946-06-07 1950-04-04 John B Thomson Ball bearing for linear motion
US2628135A (en) * 1949-03-15 1953-02-10 Thomson John B Antifriction bearing for linear motion
DE1257495B (en) * 1961-02-16 1967-12-28 Star Kugelhalter Gmbh Dt Bullet socket
US3190703A (en) * 1962-06-25 1965-06-22 Thomson Bearing structure
BE790112A (en) * 1971-10-18 1973-02-01 Heim Universal Corp BALL BEARING ASSEMBLY
US3844629A (en) * 1972-08-15 1974-10-29 Ransome Hoffmann Pollard Linear motion ball bearings
DE2363033B2 (en) * 1973-12-19 1977-10-27 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt BALL BUSHING WITH DOUBLE-ROW CARRIER
CH583383A5 (en) * 1973-12-21 1976-12-31 Skf Ind Trading & Dev
US4005913A (en) * 1975-01-08 1977-02-01 Thomson Industries, Inc. Linear motion bearing block
DE2557351C3 (en) * 1975-12-19 1982-09-23 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Linear Bushing
US4206951A (en) * 1976-04-02 1980-06-10 Skf Kugellagerfabriken Gmbh Linear rolling bearing
IT1123952B (en) * 1978-01-27 1986-05-07 Star Kugelhalter Gmbh Dt BALL SLEEVE FOR BALL LONGITUDIAN GUIDES AND METHOD FOR ITS MANUFACTURE
DE2830400C2 (en) * 1978-07-11 1982-11-25 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Ball bearings for the longitudinally movable storage of machine parts
CH631244A5 (en) * 1979-02-26 1982-07-30 Schmid Roost J Sro Kugellagerw AXIAL-ROTATING BALL GUIDING ELEMENT.
JPS55135226A (en) * 1979-04-06 1980-10-21 Minoru Suda Direct-acting ball bearing
DE3326601A1 (en) * 1983-07-23 1985-02-07 Skf Kugellagerfabriken Gmbh BALL BEARING FOR LONGITUDINAL MOVEMENTS
US4541674A (en) * 1984-02-24 1985-09-17 William Mitschang Linear motion roller bearing
DE3512013A1 (en) * 1985-04-02 1986-10-02 Skf Linearsysteme Gmbh BALL BEARING FOR LONGITUDINAL MOVEMENTS
JPH0715287B2 (en) * 1986-08-19 1995-02-22 日本トムソン株式会社 Infinite linear motion roller bearing
EP0402493A1 (en) * 1989-06-13 1990-12-19 V M E I "Lenin" Linear bearing

Also Published As

Publication number Publication date
DE69026577T2 (en) 1996-12-19
BR9005914A (en) 1991-09-24
CA2030018C (en) 1993-08-10
MX170266B (en) 1993-08-12
EP0430573A2 (en) 1991-06-05
US5046862A (en) 1991-09-10
EP0430573B1 (en) 1996-04-17
EP0430573A3 (en) 1992-04-22
JPH03186610A (en) 1991-08-14
DE69026577D1 (en) 1996-05-23

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)
MKEC Expiry (correction)

Effective date: 20121202