Matches 1 - 50 out of 60 1 2 >


Match Document Document Title
US20070137350 Ball screw nut and method of producing the same  
A ball screw nut with a ball rolling groove where balls roll on the inner circumferential surface of the ball screw nut with the ball rolling groove formed by a surface generated by a tapping...
US20100071494 Ball Screw Unit with Dual Ball Deflect Arrangements  
A ball crew unit with dual ball deflect arrangements includes a pair of circulation ball deflect units. One of them is equipped axially in a first cavity provided in the nut, while the other is...
US20060191367 Rolling screw device  
A rolling screw device capable of suppressing the rather early occurrence of damage such as cracking on the tongue of an end deflector, wherein the tip part (20a) of the tongue (20) hit by a ball...
US20070240532 Spindle Nut for a Ball Screw  
A spindle nut for a ball screw is provided, having a continuous ball track (1) for balls (2), a ball groove (3,14) for the balls (2) extending on an inner periphery of the spindle nut about the...
US20090151493 ROLLING-ELEMENT SCREW DEVICE AND METHOD OF ASSEMBLING THE SAME  
The present invention provides a rolling-element screw device capable of offering advantages of both an end cap type ball screw and a return pipe type ball screw and belonging to an intermediate...
US20080115609 Circulation System for a Ball Screw  
A circulation system for a ball screw comprises: a screw, a nut, a plurality of return assemblies and balls. The positioning groove of the nut is axially formed with an abutting surface for mating...
US20050061099 Ball-nut assembly and method for making  
A ball-nut assembly includes a ball nut and a crossover member. The ball nut incudes a radial through slot and an outer surface. The outer surface has a first portion, has a ledge radially...
US20050178228 Ball screw apparatus  
In a ball screw apparatus according to the present invention, a ball guide path 19 for guiding a ball 15 scooped up in a tangential direction of a ball center track circle to a ball return path 17...
US20080210038 Ball Screw Device  
To provide a ball screw device capable of improving operability and productivity. In a ball screw device 1 including a screw shaft 4 having a helical screw shaft-side ball rolling groove formed on...
US20090249911 SCREW DEVICE  
The present invention provides a screw device enabling insulation of sounds occurring from the inside of the screw device when circulating rolling elements. The screw device includes: a screw...
US20070295133 Ball Screw with an Engaging Type Circulation Cassette  
A ball screw with an engaging type circulation cassette comprises a nut, a screw shaft and a circulation cassette. The nut and the circulation cassette are defined with a locking groove and a...
US20060196291 Electrically driven linear actuator  
An electrically driven linear actuator with a smooth motion of the ball screw provides an even load distribution as well as a stable motion of the balls and has an electric motor (5) mounted on a...
US20080127763 Ball Screw  
In a ball screw 1 in which a screw shaft 2 having a spiral-shaped screw shaft side ball rolling groove 6 in an outer periphery is screwed into a nut 4 having in an inner periphery a nut side ball...
US20080121056 Ball screw device having silencing device  
A ball screw device includes a screw shaft threaded with a ball nut which has one or more channels, and one or more end deflectors attached to the ball nut to form an endless ball rolling passage...
US20070204711 Ball screw mechanism for an electromechanical steering system and nut for a ball screw mechanism  
A ball bearing helical gearing for an electromechanical steering system of a vehicle includes a threaded spindle and a nut. The threaded spindle and nut are provided with ball bearing raceways for...
US20090084212 SCREW DEVICE AND METHOD OF MANUFACTURING THE SAME  
Provided is a screw device capable of preventing occurrence of any elevation change at a joint between a ball return path of a circulation member and a loaded ball rolling groove of a nut. The...
US20080098840 Circulating Assembly for a Ball Screw  
A circulating assembly for a ball screw comprises a cassette and a separator. The fitting hole of the cassette facilitates the installation of the balls, and the separator is inserted in the...
US20080053260 Circulation Member for Ball Screw Unit  
A circulation member for ball screw unit includes a fixing portion, a circulation turn-off portion, and a side joint portion. The circulation turn-off portion is conjoined to the fixing portion...
US20100043583 BALL SCREW MECHANISM  
A ball screw mechanism is equipped with a ball screw shaft formed from a metallic material, a displacement nut inserted over an outer circumferential side of the ball screw shaft, steel balls...
US20090158874 Ball screw  
A ball screw includes a screw shaft, in which a thread groove is formed in an outer peripheral face thereof, that includes a small-diameter portion with a diameter smaller than an outer diameter...
US20080127764 Ball Screw Device  
To surely and easily secure a return tube to a nut and prevent the return tube from floating and expanding when circulating failure of balls occurs. The ball screw device has a screw shaft having...
US20100180707 Rolling Element Screw  
A rolling element screw comprises a screw and a nut mounted on the screw. The screw and the nut are defined with opposite rolling grooves to form a loaded path in which plural rolling elements are...
US20100050801 Ball screw module  
Disclosed is a ball screw module including a screw shaft, a nut member, a ball connector, and a circulating device mounted on the nut member. The screw shaft and the nut member constitute a first...
US20090293658 LOW-NOISE SCREW DEVICE  
Provided is a screw device capable of reducing noise generated therefrom. The screw device has a screw shaft 5 having a rolling-element rolling groove 5a spirally formed on an outer peripheral...
US20130283953 BALL SCREW WITH AN IMPROVED END DEFLECTOR  
In a ball screw (1), comprising a screw shaft (3), a nut (7) threaded onto the screw shaft via a plurality of balls (9) received in a raceway (8) defined between the two parts, an end deflector...
US20090070078 ROLLER SCREW AND METHOD OF DESIGNING UNLOADED ROLLER RETURN PATH THEREOF  
Provided is a roller screw having an unloaded roller return path of new shape capable of moving rollers smoothly. The roller circulation path of the roller screw has the unloaded roller return...
US20130055839 BALL SCREW WITH SECTIONAL CIRCULATING ASSEMBLIES  
A ball screw with sectional circulating assemblies comprises an inner circulating block and an outer circulating block. In assembly, the inner circulating block is initially placed between the...
US20140290410 BALL SCREW DEFLECTOR  
In an electric power steering system, there is provided a ball screw deflector configured to make it possible to easily measure the whole length of each of deflector pieces. A mating face of each...
US20100242651 ROLLING-ELEMENT SCREW DEVICE  
Provided is a rolling-element screw device in which a recess can be easily formed in an outer diameter portion of a nut main body for receiving a circulation member. At both ends of a straight...
US20100263467 ROLLER SCREW  
Provided is a roller screw capable of preventing rollers moving from an unloaded return path to a loaded roller rolling path from coming into collision with a scooping portion. The roller screw...
US20120132025 Ball Screw  
A ball screw prevents loosening of a bolt for fixing a deflector to reduce noise, and endures high-speed working conditions. A female hole is formed in a deflector arranged, with the both ends...
US20100139433 Ball screw with a circulation member  
A ball screw with a circulation member comprises: a screw, a nut, a circulation member, a plurality of rolling elements and a plurality of flexible members. The flexible members are disposed at...
US20140251050 LOAD ADJUSTABLE BALL SCREW DEVICE  
A ball screw device includes a screw engaged into two nut members for forming a ball guiding passage between the nut members and the screw member and for receiving and engaging with bearing...
US20130068058 BALL SCREW HOLDING SYSTEM FOR INSERT  
Ball screw system comprising a screw having an external threading, a nut having an internal threading and a series of balls being engaged in the threadings to link the screw and the nut, the nut...
US20100242653 Deflecting body for a ball screw  
A deflecting body for a ball screw, which has two body parts to be connected to one another which delimit a deflecting channel which carries rolling bodies. Latching or jamming projections are...
US20100242652 BALL SCREW DEVICE  
Provided is a ball screw device having a novel ball circulation structure suitable for a screw shaft with a large lead, optimum for downsizing and weight saving of a nut member, capable of being...
US20100236346 Ball screw  
Ball screw, having a spindle nut (1), on the inner circumference of which a helically wound ball groove (2) is formed, a return tube (4) being provided for balls (3), in which the balls are...
US20100170360 Deflecting device for ball screw device  
A ball screw device includes a screw engaged into a nut member for forming an endless ball guiding passage between the nut member and the screw and for receiving a number of ball bearing members,...
US20100132494 BALL SCREW DEVICE HAVING TUNNEL RACEWAY, AND METHOD FOR MANUFACTURING THE SAME  
A ball screw device of a screw axis with a helical groove on its outer circumference for balls to circulate thereon includes a nut with a helical groove on its inner circumference for balls to...
US20100126292 Deflector for ball screw device  
A ball screw device includes a screw engaged into a nut member for forming an endless ball guiding passage between the nut member and the screw and for receiving a number of ball bearing members,...
US20100107794 Circulating device for motion guide apparatus  
A motion guide device includes a ball nut attached onto a shaft and having helical grooves for receiving ball bearing elements, a tubular member is engaged with the ball nut and includes a ball...
US20160333995 BALL SCREW DEVICE  
A ball screw device includes a ball circulation part having a bail circulation path. The ball circulation part is formed by combining a first split body and a second split body. The first split...
US20160223058 BALL RETURNING CIRCULATOR OF BALL SCREW  
A ball returning circulator of a ball screw having a nut, a screw and a plurality of balls and a circulation device assembled in a ball rolling duct defined by a nut and a screw are provided. The...
US20160076632 BALL SCREW  
The invention relates to a ball screw (10) with a threaded spindle (12), a nut (14), rolling bodies (16) and at least one deflecting device (18, 20), wherein the threaded spindle (12) is...
US20150284020 BALL SCREW DEVICE, POWER TRANSFER MECHANISM, ELECTRIC POWER STEERING APPARATUS, AND METHOD FOR MANUFACTURING BALL SCREW DEVICE  
A ball screw device is provided for which quality can be easily evaluated. The ball screw device includes a threaded shaft with a groove formed on an outer peripheral surface of the shaft, and a...
US20150167800 BALL SCREW DRIVE  
A ball screw drive with a spindle nut (1) arranged on a screw spindle (2) and a continuous ball channel (7) formed by the screw spindle (2) and the spindle nut (1), in which channel balls arranged...
US20150152946 BALL SCREW ASSEMBLY  
A ball screw assembly having a bearing ball recirculation arrangement. The ball screw assembly includes a ball screw, a nut body, at least one cap, and at least two yolk deflectors. The assembly...
US20150151780 BALL SCREW AND POWER STEERING APPARATUS  
A ball screw includes: an end deflector; and a nut having a housing portion in which the end deflector is housed; in which the end deflector is formed of two or more division members, and at least...
US20150033891 BALL SCREW DEVICE  
A ball screw device includes a screw shaft; a ball nut; a first deflector fitted to an end portion of the ball nut; a ball guide portion that guides balls positioned in a helical inner ball...
US20150027258 BALL SCREW DEVICE  
A ball screw device includes a piston that surrounds the outer periphery of a ball nut. An outer periphery turning groove is formed in the outer peripheral face of the ball nut. The outer...

Matches 1 - 50 out of 60 1 2 >