ball screw

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• Ball screw — A ball screw is a mechanical device for translating rotational motion to linear motion. A threaded shaft provides a spiral raceway for ball bearings which act as a precision screw. As well as being able to apply or withstand high thrust loads… …   Wikipedia

• ball screw — noun : a screw attachable to a ramrod used to extract lead bullets from muzzle loading guns …   Useful english dictionary

• Ball spline — Ball splines (Ball Spline bearings) are a special type of linear motion bearing that are used to provide nearly frictionless linear motion while allowing the member to transmit torque simultaneously. There are grooves ground along the length of… …   Wikipedia

• screw — screw1 [ skru ] noun count * 1. ) a thin pointed piece of metal used for fastening one thing to another. It has a raised twisted part on it called a thread. You push and turn it with a screwdriver instead of hitting it with a hammer like a nail:… …   Usage of the words and phrases in modern English

• screw */ — I UK [skruː] / US [skru] verb Word forms screw : present tense I/you/we/they screw he/she/it screws present participle screwing past tense screwed past participle screwed 1) [transitive] to fasten one thing to another using screws Next screw the… …   English dictionary

• Screw (simple machine) — Look up in Wiktionary, the free dictionary. of the machine. More threading increases the mechanical advantage. A rough comparison of mechanical advantage can be done by taking the circumference of the shaft of the screw and divide by the distance …   Wikipedia

• Ball bearing — For individual balls that are sometimes called ball bearings , see Ball (bearing). Working principle for a ball bearing …   Wikipedia

• ball — Synonyms and related words: Kaffeeklatsch, action, agate, assemblee, assembly, assignation, at home, bal, bal costume, bal masque, ball bearing, balloon, bar shot, barn dance, baseball, baseball bat, basketball, bat, battledore, bauble, be… …   Moby Thesaurus

• Screw theory — was developed by Sir Robert Stawell Ball in 1876, for application in kinematics and statics of mechanisms (rigid body mechanics). It is a way to express displacements, velocities, forces and torques in three dimensional space, combining both… …   Wikipedia

• screw|ball — «SKROO BL», noun, adjective. –n. 1. Slang. an eccentric person. 2. Baseball. a pitch thrown with a break or spin opposite to that of a curve. –adj. Slang. eccentric; erratic: »screwball arguments that don t make sense …   Useful english dictionary

• Ball differential — A ball differential is a type of differential typically used on radio controlled cars. It differs from a geared differential by using several small ball bearings rotating between two plates, instead of bevel gears. History The first ball… …   Wikipedia