Matches 1 - 50 out of 367 1 2 3 4 5 6 7 8 >


Match Document Document Title
US20060266146 Direct drive electromechanical linear actuators  
Direct drive electromechanical rotary-to-linear actuators include one or more electric motors mounted in a housing. Each motor includes a stator and a rotor. The motor drives a planetary drive...
US20130186224 BALLSCREW ASSEMBLY  
A ballscrew assembly may comprise a ballscrew having an axially distributed ballscrew groove about an interior circumference of the ballscrew, an extended top plate having an axially distributed...
US20080110285 Roller Screw System  
A roller screw system comprises a screw shaft, a nut, a pair of return members, a return pipe and a plurality of rollers. The nut is interiorly defined with a receiving recess for accommodation of...
US20130133453 INTERNAL CIRCULATION BALL SCREW  
An internal circulation ball screw includes a threaded shaft, a nut having a receiving space, a circulation member mounted to the receiving space and having a first circulation groove and a second...
US20050172487 Method for working nut screw for ball screw  
A method for working a nut screw for a ball screw has a first step of lathing or cutting a spiral-shaped rolling surface of the nut screw for a ball screw on which balls of the ball screw are...
US20130019420 WIPER FOR TRANSLATING RAM  
A wiper for a translating ram with recessed features includes a first element conforming to the recessed features of the translating ram; and a second element conforming to the external surface of...
US20090145056 Polygon mast  
Aspects of the invention relate to telescoping mast assemblies (telescoping “towers”), polygonal sided masts for use in such assemblies, methods of fabricating polygonal sided masts, methods and...
US20090114059 CURVED SURFACE ACTUATING MECHANISM AND DOLL USING THE SAME  
A curved surface actuating mechanism suitable for controlling motions of eyelids for a doll is provided, which includes a main shaft, a first drive unit, a second drive unit, a third drive unit, a...
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...
US20090301246 SCREW DEVICE AND METHOD OF MANUFACTURING THE SAME  
The present invention provides a screw device which takes a heavy load in one direction along the axis of the screw shaft and only a light load in the opposite direction, the screw device capable...
US20050247150 Mechanism for converting rotary motion into linear motion  
In a mechanism for converting rotary motion into linear motion, a large thrust can be generated by arranging a revolving roller provided on an outer peripheral surface thereof with a roller...
US20130299631 DRIVE SCREW ASSEMBLY AND LANDING GEAR ASSEMBLY WITH SAME  
A landing gear assembly includes a leg that may be rotated between retracted and extended positions, a link assembly, and a drive screw assembly. The drive screw assembly includes a casing, a...
US20100043582 Ball Screw And A Method For Manufacturing The Same  
A ball screw has a nut formed with a helical ball rolling groove on its inner circumference. A screw shaft is formed with a helical ball rolling groove on its inner circumference. The screw shaft...
US20050016308 Tube guide for ball screw, ball screw and method for manufacturing thereof  
A tube guide for a ball screw having a screw shaft including a ball rolling groove; a nut including a ball rolling groove; a plurality of balls disposed in a ball rolling passage; and, a ball...
US20070277638 Screw Drive with an Antibacklash Mechanism and Method of Preventing Backlash in a Screw Drive  
A screw drive with an antibacklash mechanism and method including a pair of nuts rotatably mounted in a housing which are urged to rotate in opposite directions to engage flanks of leadscrew...
US20100320715 Automated Retractable Running Board  
A running board assembly is provided for a motor vehicle. The running board assembly includes an actuator housing fixedly mounted to the motor vehicle. An arm is slidable relative to the actuator...
US20090090207 External Circulation Type Ball Screw  
An external circulation type ball screw is provided with a helical passage in the outer surface of the nut. The helical passage and the inner helical groove of the nut are opposite in winding...
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...
US20070006676 Ball screw and electric power steering device including the same  
A ball screw (26) includes a screw shaft (29) a nut (25) surrounding the screw shaft (29), and a plurality of balls (30) engageable with the screw shaft (29) and the nut (25). The ball screw (26)...
US20110041638 GREASE COMPOSITION AND DIRECT-ACTING DEVICES WITH THE GREASE COMPOSITION  
A grease composition includes: a poly-α-olefin having a kinematic viscosity at 40 degrees C. of 60 to 320 mm2/s, the poly-α-olefin being contained in an amount of 50 mass % or more relative to a...
US20120180588 BALLSCREW ASSEMBLY  
Improved ballscrew assemblies are disclosed herein. For example, a ballscrew assembly may comprise a ballscrew having an axially distributed ballscrew groove about a circumference of the...
US20080314179 Roller Transmission and Gearing Mechanism  
A roller transmission and gearing mechanism with a driving body, roller means and a driven body, wherein the driving body is coupled to the driven body by means of the roller means, the bodies are...
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...
US20090071278 Ball screw device having image sensor  
A ball screw device includes a number of bearing members received between a ball nut and a screw shaft, and an image device engaged into the bore of the ball nut, and directed toward the screw...
US20100031763 Multi-Cycle Ball Screw  
A multi-cycle ball screw comprises a screw, a nut, a plurality of balls and circulating caps. The screw is provided with at least two screw helical grooves in an outer surface thereof. The nut is...
US20110179660 PROBE APPARATUS  
An exemplary probe apparatus includes a fixture, a first probe assembly, a motor, a lead screw, two guide members, a second probe, and a reduction gear unit. The first probe assembly is fixedly...
US20080282825 Ball screw and method for displacing a threaded spindle in a ball screw  
A ball screw comprising a threaded nut with thread channels for rolling bodies, a threaded spindle with thread channels for rolling bodies, and an intermediate bush, which is arranged between the...
US20090013812 Roller Screw Structure  
A roller screw structure comprises a nut, a screw and a rolling assembly. The rolling assembly is movably disposed between the nut and the screw and includes at least one rolling cone. 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...
US20140290409 BALLSCREW ASSEMBLY HAVING A LOW FRICTION SLEEVE  
A ballscrew assembly may include a ballnut configured to combat the negative effects of thermal expansion of dissimilar materials used within the ballscrew assembly. Moreover, the ballscrew...
US20090056488 SPIRAL-TOOTHED GEAR WHEEL FOR RACK AND PINION STEERING  
A spiral-toothed gear wheel for a rack and pinion steering. The spiral-toothed gear wheel includes a pinion, which meshes on the power take-off side with a toothed rack, and a spiral-toothed gear,...
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...
US20060196292 Self-alignment spacer for a ball screw device  
A self-alignment spacer for a ball screw device is disposed between respective balls of a ball screw device and comprises: at least a stuffing having a specific gravity different from that of the...
US20090255752 BALL SCREW MECHANISM AND ELECTRIC POWER STEERING DEVICE USING THE SAME  
In a ball screw mechanism, a retainer is provided between an outer circumference of a ball screw shaft and an inner circumference of a ball nut and has a plurality of retainer grooves arranged in...
US20090283062 Actuator with self-locking helical gears for a continuously variable valve lift system  
A CVVL system including a self-locking helical gear pair with, optionally, a transmission to increase output torque of the actuator. The self-locking helical gear pair provides high forward...
US20100061839 SHAFT COUPLING ARRANGEMENT  
A shaft coupling arrangement and a corresponding method for coupling shafts are disclosed herein. The shaft coupling arrangement includes an input shaft operable to rotate about a first axis. The...
US20150096397 BALL SCREW CAPABLE OF SENSING TORQUE IN REAL TIME  
A ball screw capable of sensing a torque in real time includes a screw rod, a screw nut sleeved onto the screw rod, a plurality of balls mounted between the screw rod and the screw nut, and a...
US20050268736 Mechanical actuator including a helical-cam nut  
The actuator includes a first tubular body, a nut positioned inside the tubular body and having at least a globally helical raceway, balls arranged between the raceway and the tubular body (20),...
US20110023641 Chain Type Transmission Assembly  
A chain type transmission assembly doesn't have the problem that the chain interferes with the transmission assembly, the thickness of the links of the chain of the transmission assembly is...
US20080250887 Ball Screw Mechanism and Assembling Method of the Same  
Since it is configured that an female screw groove 2a of a nut 2 extends round an axis of the nut 2 through 360 degrees or less and a sectional shape thereof taken at right angles to the groove...
US20090133523 Error-compensating bearing screw conveying device  
The present invention relates to an error-compensating bearing screw conveying device including: a screw shaft having a screw mounted along the outer circumferential surface thereof; a nut body...
US20060107779 Ball screw nut with ball bearing ring and fabrication method of same  
The present invention provides a ball screw nut with a ball bearing ring and the fabrication method of same. The nut unit is essentially composed of a transmission nut and a ball bearing ring. The...
US20080196528 Internal Circulation Ball Screw  
An internal circulation ball screw comprises a nut, a screw, a plurality of return assemblies, and a plurality of balls. The nut is threaded on the screw through the balls. An arc-shaped curving...
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...
US20090107272 Modified Acme Screw/Nut Set  
A nut and screw set for reducing the amount of hindered motion therebetween is disclosed. The nut and screw set includes a screw and a nut. The screw includes a plurality of screw threads. The nut...
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...
US20080022798 Running Gear And Production Method  
A running gear toothing for gearwheels and a process for producing such running gear is provided. In order to be able to work complex shapes (e.g. reinforcing ribs) into running gear, a preforged...
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...

Matches 1 - 50 out of 367 1 2 3 4 5 6 7 8 >