lead screw


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Related to lead screw: Ball screw

lead screw

[′lēd ‚skrü]
(mechanical engineering)
A threaded shaft used to convert rotation to longitudinal motion; in a lathe it moves the tool carriage when cutting threads; in a disk recorder it guides the cutter at a desired rate across the surface of an ungrooved disk.
References in periodicals archive ?
Therefore, the current study for the first time attempts to produce a robust, low cost device employing an active control system with a DC motor integrated with lead screw mechanism.
Then apply fresh WTR grease to the elevation lead screw. NSN 9150-00-944-8953 brings a 1 3/4-lb can of WTR.
The actuators use proprietary manufacturing processes which incorporate engineering thermoplastics in the rotor drive nut and a stainless steel acme lead screw. Applications include medical equipment, semiconductor handling, valve control, X-Y tables, hand held instruments, and telecommunications.
Comptrol tension measurement, linear motion, and industrial automation and control systems include: tension transducers with load capacities from 4 to 35,000 MWF and up to 5VDC output direct from the transducer, ball screw and lead screw components and assemblies, linear actuators, rails, and slides.
RPT engineers combined a servo-powered mechanism with an anti-backlash, self-lubricating lead screw assembly to feed the required four lanes (two lanes in each of two case packers).
The company's line of machines includes multispindle drilling and tapping units and machines, single-spindle lead screw tapping machines, and production tapping equipment.
Combining a lead screw assembly with a linear encoder, Newall's ScrewCoder is an industry first.
Called the Series 26DBM, the DLA is a modified rotary stepper motor with a rotor that includes an internally molded thread that can mate to an externally threaded shaft (lead screw).
Once secured in place the object to be lifted is raised and lowered by the lead screw mechanism of the Mk3 Compac.
The Series 92200 DLA is a modified rotary stepper motor, with a rotor that includes an internally molded thread that mates to an externally threaded shaft or lead screw. Weighing just 7 oz, the 12 models in the Series 92200 are ideal for fast and precise positioning in medical, computer peripheral, office automation and HVAC applications.
The five most commonly used drive trains in linear motion are ball screw, lead screw, timing belt, rack & pinion, and linear motor.
The catalog is divided into three major sections: precision lead screw and nut assemblies: linear actuators and stepper motor drives; and motorized and non-motorized linear rail systems.