Gear Rack

Gear Rack

 

a bar or rod with gear teeth that engage a pinion or, less frequently, a worm gear, together with which it forms a drive for transforming rotary motion into transla-tory motion or vice versa (rack-and-gear drive). Gear racks are made with spur, helical, herringbone, or circular teeth. In the most frequently used gear drives with involute gearing, the shape of the teeth on the gear rack is rectilinear.

Gear racks are used in gear drives of metal-cutting machine tools and other machines. They are attached by screws and pins to the slide bars, tables, or stands of machine tools and machines. For example, in the drive of the main cutting motion in a planing machine, the gear rack is attached to the table that holds the part being worked; in the lengthwise feed mechanism of a lathe there is a stationary gear rack on the stand, and a pinion is mounted on the movable support with the cutting tool. Sometimes gear racks travel along guides, as in mechanisms for changing speeds on machine tools.

References in periodicals archive ?
stagebox digital I / O with the gear rack transportation and Cat5e cable type - 1 pc.
The drill rig also features a breakout system on the rotation unit that uses high-pressure oil and gear rack assistance to effortlessly break rod joints.
3] = f--the coefficient of modification the gear rack or racks profile angle [[alpha].
Another designing variable is the "f" coefficient, which is called coefficient of modification of the gear rack angle.
Do not disassemble gear rack or cores at this time.
Check moving parts, including gear rack or chain, pivot points, boom locks, wear guides and cam followers.
An experienced team of customer service and engineering staff is available to help select the correct spur gear, helical gear, internal ring gear, gear rack, bevel gear, screw gear, worm or wormwheel, ratchet or pawl, or gearbox for your industrial automation application.
The firm was founded to serve the local precision tool industry, but has grown to become a leading specialist manufacturer and supplier of gear rack, pinions and screws for use in a wide range of areas, including lifts and elevators, power transmission, transport, power generation, mobility aids, automotive, aerospace, defence, oil and gas, engineering and shipbuilding.
Another designing variable is the coefficient "f", which is called coefficient of modification of the gear rack angle.
Tenders are invited for Procuremenmt Of Electrodes For Repair Work Of Final Drive Pinion Gear Rack Pinion Etc
2008) Simulation of gear rack generation of involute spur gears, Annals of the Oradea University.
Tenders are invited for Supply Of Cover For Locking Gear Rack And Indication Detection Slide Of Point Machine.