Product Description
Pair of motor brushes for Foredom Filter Hood.
Replacement pair of motor brushes for MAFH25 and MAFH27 Filter Hoods.
Brushes should be checked for wear periodically. When new they are approximately 1.6cm (5/8") long. It's best to replace them when they have worn to approximately 0.6cm (1/4"). Be sure to replace both motor brushes even if one of them is less worn than the other.
Learn More About Motor Brushes:
All Foredom electric motors are the 2-pole type, and use one set of brushes, one on each side of the motor case, opposite the shaft end. The brushes are installed in brush holders, which are copper or brass tubes encased in plastic, with shallow plastic screw caps to retain, and provide access to, the brushes. The leads from the motor power cord are connected to the metal brush tubes, from which current flows into the brushes. A brush consists principally of a length of compressed graphite, with carefully controlled characteristics to provide the lowest possible resistance, low friction, and long life. A flexible copper pigtail is imbedded in the brush, terminated in a U or disc terminal. The pigtail is surrounded by a coil spring. The free end of the brush is curved, to match the curvature of the commutator. When the brush is inserted in the brush holder and the screw cap is in place, the spring maintains proper brush pressure on the commutator as the brush wears, and the pigtail terminal contacts the inner metal tube to provide a current path to the brush.
All Foredom electric motors are the 2-pole type, and use one set of brushes, one on each side of the motor case, opposite the shaft end. The brushes are installed in brush holders, which are copper or brass tubes encased in plastic, with shallow plastic screw caps to retain, and provide access to, the brushes. The leads from the motor power cord are connected to the metal brush tubes, from which current flows into the brushes. A brush consists principally of a length of compressed graphite, with carefully controlled characteristics to provide the lowest possible resistance, low friction, and long life. A flexible copper pigtail is imbedded in the brush, terminated in a U or disc terminal. The pigtail is surrounded by a coil spring. The free end of the brush is curved, to match the curvature of the commutator. When the brush is inserted in the brush holder and the screw cap is in place, the spring maintains proper brush pressure on the commutator as the brush wears, and the pigtail terminal contacts the inner metal tube to provide a current path to the brush.
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Pendant motor replacement bushes
These are a "Must have" for all owners of the Foredom Pendant motor! The motor bushings will wear out over time, which probably means the motor will stop working. Lots of hair pulling will ensue as you can't finish whatever piece of wonderful, highly creative thing you were currently working on at that given moment. But, with these replacement bushings, you can carry on with your work once again!
