Long-life brushes cut down maintenance
A
PennEngineering Motion Technologies - Europe product story
Edited by the Engineeringtalk editorial team
Sep 5, 2002
The SuperBrush is a new option for Pittman Lo-Cog brush-commutated DC motors to help delay the detrimental effects of ongoing brush wear and promote extended service life of motors.
The SuperBrush is a new option for Pittman Lo-Cog brush-commutated DC motors to help delay the detrimental effects of ongoing brush wear and promote extended service life of motors.
These longer copper graphite (automotive-grade) SuperBrushes contain 60% more brush material than their standard counterparts.
In addition to being longer, the SuperBrush has a greater contact area with the commutator.
This decreases current density and reduces brush wear.
SuperBrushes are now available as an option in Pittman Lo-Cog Series 8000 and Series 9000 brush-commutated DC motors.
The SuperBrushes (two in each motor) are housed in unique cartridge brush assemblies, which use torsion springs to ensure even brush force.
These snap-together assemblies permit the SuperBrushes to travel in a true linear motion and provide an ideal brush pressure to withstand the detrimental effects of mechanical wear.
Lo-Cog brush-commutated DC motors from Pittman can deliver performance, reliability, and long service life in a relatively small package for a wide range of power applications, including technology for computer peripherals, imaging, and clinical diagnostic devices.
Depending on the model, these brush motors can achieve speeds up to 10,650rev/min and peak torques up to 410oz-in.
Every Pittman motor is subjected to automated performance testing prior to shipment.
(This was Engineeringtalk's Top Story on 4 September 2002).
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