BRUSH DC MOTORS
Staff
General DPN
AMETEK Technical & Industrial Products has introduced PITTMAN Series 9000 brush-commutated dc motors with 2-pole stators that incorporate 7-slot skewed armatures to minimize magnetic cogging (or reluctance torque). Units are said to enable smooth and quiet running performance. Commutators are diamond turned after armature assembly to ensure optimum concentricity and long brush life and windings are resin-impregnated for greater reliability in incremental motion applications.
Other features include ceramic magnets, silicon steel laminations, copper graphite brushes, and heavy-gauge steel housing. Motors are available in six lengths (from 1.82 to 3.35 in.) and can achieve a maximum continuous torque rating of 6.9 oz in at speeds up to 6070 rpm, depending on model.
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