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Foredom® MP117P Motor Brushes, Set of 2
This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information on this product, please refer to the SDS file. For more information on Prop 65, please visit www.p65warnings.ca.gov.
Foredom® MP117P Motor Brushes can be used to replace worn out brushes for these discontinued motors:
- Series R and RB Motors(115 Volt and 230 Volt)
- Series EE, GG, and MMG Motors (115 Volt and 230 Volt)
- Series CC, DD and MM Motors (230 Volt)
Brushes should be checked for wear periodically. When new they are approximately 3/4″ long. Replace them when they have worn to 1/4″. Be sure to replace both motor brushes even if one of them is less worn than the other.
All Foredom® electric motors are the 2-pole type, using one brush 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 embedded 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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WARNING: Read & understand all operation instructions / manuals before using this tool. Failure to follow operating instructions could result in serious injury or damage to equipment. |
Foredom® MP117P Motor Brushes can be used to replace worn out brushes for these discontinued motors:
- Series R and RB Motors(115 Volt and 230 Volt)
- Series EE, GG, and MMG Motors (115 Volt and 230 Volt)
- Series CC, DD and MM Motors (230 Volt)
Brushes should be checked for wear periodically. When new they are approximately 3/4″ long. Replace them when they have worn to 1/4″. Be sure to replace both motor brushes even if one of them is less worn than the other.
All Foredom® electric motors are the 2-pole type, using one brush 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 embedded 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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WARNING: Read & understand all operation instructions / manuals before using this tool. Failure to follow operating instructions could result in serious injury or damage to equipment. |