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The main structure of the Wabeco 135mm x 600mm D6000 lathe is of conventional design with a very heavy, deep section, cast-iron V-way bed, a simple but strong carriage assembly and an infinitely-variable speed 1.4 kW motor mounted behind the headstock. The drive from motor is taken first to a pulley on a layshaft and from there to both the headstock spindle (which runs from 45 to 2300 rpm) and the carriage power-feed and screwcutting drive. Screwcutting, as on the bar-bed lathes, is by toothed belts and wheels - although in this case the arrangement is improved by putting the initial drive from the spindle through gears which incorporate a conventional tumble-reverse mechanism, so enabling the lathe to be run in the almost silent high-speed "open-gear", or to generate right and left-hand threads by the movement of just one lever - unfortunately, however, to make this change, an inaccessible nut has to be released first. In some markets the set of pulleys and belt required to complete the screwcutting set, and generate a full range of threads, are optional extras.
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