GB920649A - Ballscrew and nut assembly - Google Patents
Ballscrew and nut assemblyInfo
- Publication number
- GB920649A GB920649A GB2520161A GB2520161A GB920649A GB 920649 A GB920649 A GB 920649A GB 2520161 A GB2520161 A GB 2520161A GB 2520161 A GB2520161 A GB 2520161A GB 920649 A GB920649 A GB 920649A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nut
- groove
- balls
- screw
- insert
- 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.)
- Expired
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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
- F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls
- F16H25/2223—Cross over deflectors between adjacent thread turns, e.g. S-form deflectors connecting neighbouring threads
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
920,649. Screw-and-nut gearing. SPECIALTIES DEVELOPMENT CORPORATION. July 12, 1961 [Aug. 31, 1960], No. 25201/61. Class 80 (3). In screw-and-nut gearing of the kind wherein one or more sets of balls are disposed between a screw 10 and a nut 11 so as to lie in complementary grooves 12 therein, a transfer element for recirculating the balls is formed as an insert 15 of generally cylindrical form having a flange 26 adapted to fit in the upper part of a circular stepped bore 16 in the nut so as to fit flush with the surface of the latter, the step 25 in the bore positioning the insert radially therein, and a tongue and groove connection 28, 27 between the flange 26 and the nut to position the insert about the axis of the bore 16, so that a transfer groove 20 is accurately positioned for transfer of the balls in known manner between points less than one convolution apart on the nut grooving. The groove 20 is of S formation (Fig. 3, not shown) to provide for smooth transfer of the balls, a cylindrical surface 19 being formed on either side of the groove 20 which conform with the crests 13 between the grooves of the screw. The tongue 28 may be used to position the insert for machining of the groove 20.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5309360A | 1960-08-31 | 1960-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB920649A true GB920649A (en) | 1963-03-13 |
Family
ID=21981889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2520161A Expired GB920649A (en) | 1960-08-31 | 1961-07-12 | Ballscrew and nut assembly |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB920649A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3234810A (en) * | 1961-02-24 | 1966-02-15 | Orner Harry | Preloaded ball bearing screw and nut mechanism |
| US3771382A (en) * | 1971-10-04 | 1973-11-13 | R Wilke | Ball-threaded spindle nut with at least one individual overflow insert member |
| US3961541A (en) * | 1973-10-30 | 1976-06-08 | La Technique Integrale S.A. | Ball-equipped screw and nut mechanism |
| FR2522764A1 (en) * | 1981-12-29 | 1983-09-09 | Teramachi Hiroshi | ROTARY MOTION CONVERTER INTO BALL LINEAR MOTION AND FORWARD MECHANISM USING SUCH A CONVERTER |
| DE3423979A1 (en) * | 1983-08-02 | 1985-02-14 | Roltra S.p.A., Turin/Torino | SCREW-SCREW NUT COUPLING WITH BALL REVOLUTION AND METHOD FOR ASSEMBLING IT |
| FR2579515A1 (en) * | 1985-04-01 | 1986-10-03 | Novatome | METHOD FOR MANUFACTURING A DEVIATOR FOR AN INTERNAL RECYCLING BALL SCREW NUT SYSTEM |
| US4887480A (en) * | 1987-12-14 | 1989-12-19 | American Ball Screw | Externally serviceable ball screw having internal return means |
| DE19944875A1 (en) * | 1999-09-18 | 2001-03-22 | Schaeffler Waelzlager Ohg | Ball screw drive |
| DE10214481A1 (en) * | 2002-03-30 | 2003-10-16 | Ina Schaeffler Kg | Ball screw drive with deflection piece |
| DE10346079A1 (en) * | 2002-12-17 | 2004-08-12 | Ina-Schaeffler Kg | Ball Screw |
| EP2128493A1 (en) * | 2008-05-30 | 2009-12-02 | Ntn Corporation | A bridge type ball screw |
-
1961
- 1961-07-12 GB GB2520161A patent/GB920649A/en not_active Expired
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3234810A (en) * | 1961-02-24 | 1966-02-15 | Orner Harry | Preloaded ball bearing screw and nut mechanism |
| US3771382A (en) * | 1971-10-04 | 1973-11-13 | R Wilke | Ball-threaded spindle nut with at least one individual overflow insert member |
| US3961541A (en) * | 1973-10-30 | 1976-06-08 | La Technique Integrale S.A. | Ball-equipped screw and nut mechanism |
| FR2522764A1 (en) * | 1981-12-29 | 1983-09-09 | Teramachi Hiroshi | ROTARY MOTION CONVERTER INTO BALL LINEAR MOTION AND FORWARD MECHANISM USING SUCH A CONVERTER |
| DE3423979A1 (en) * | 1983-08-02 | 1985-02-14 | Roltra S.p.A., Turin/Torino | SCREW-SCREW NUT COUPLING WITH BALL REVOLUTION AND METHOD FOR ASSEMBLING IT |
| EP0198750A1 (en) * | 1985-04-01 | 1986-10-22 | Novatome | Method of manufacturing a deviating element for a screw-and-nut assembly with internal ball recirculation |
| FR2579515A1 (en) * | 1985-04-01 | 1986-10-03 | Novatome | METHOD FOR MANUFACTURING A DEVIATOR FOR AN INTERNAL RECYCLING BALL SCREW NUT SYSTEM |
| US4887480A (en) * | 1987-12-14 | 1989-12-19 | American Ball Screw | Externally serviceable ball screw having internal return means |
| DE19944875A1 (en) * | 1999-09-18 | 2001-03-22 | Schaeffler Waelzlager Ohg | Ball screw drive |
| DE10214481A1 (en) * | 2002-03-30 | 2003-10-16 | Ina Schaeffler Kg | Ball screw drive with deflection piece |
| DE10346079A1 (en) * | 2002-12-17 | 2004-08-12 | Ina-Schaeffler Kg | Ball Screw |
| DE10346079B4 (en) * | 2002-12-17 | 2011-08-11 | Schaeffler Technologies GmbH & Co. KG, 91074 | Ball Screw |
| EP2128493A1 (en) * | 2008-05-30 | 2009-12-02 | Ntn Corporation | A bridge type ball screw |
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