Brush Dc Servomotors Designed to Minimise Cogging
August 18, 2009 – 9:01 am
The Series 8000 brush-commutated dc motors from Pittman (a subsidiary of Ametek Tecnical & Industrial Products) feature a seven-slot skewed armature design to minimise magnetic cogging and promote smooth and quiet operation. This family of motors offers high performance and reliability to power applications ranging from data storage and medical equipment to semiconductor processing and automation machinery.
These motors are available in 2.070-in., 2.195-in. and 2.445-in. lengths and can achieve peak torques up to 16.8 oz.-in and speeds up to 9020 rpm at continuous torque for standard motors at rated voltages. Speed, voltage, current and torque characteristics can be varied to satisfy particular application needs.
Standard features for all models include, two-pole stator, neodymium magnets, heavy-gauge steel housing, silicon–steel laminations, and copper graphite brushes. Commutators are diamond turned after armature assembly to promote optimum concentricity and long brush life. Windings are resin-impregnated to improve reliability in incremental motion applications.
Modular construction enables their assemblies to be customised with alternative brush materials, optical encoders, timing belt pulleys, brakes, cables, connectors, modified shafts and RFI suppression or other special configurations to meet application demands. Motors can be equipped with planetary or spur gearboxes as specified.
Tags: dc motors, Pittman, Series 8000
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