Product Description
Brush, Pair
Frequently Asked Questions
Q: What is the KO 3BA-18-25490 brush pair used for?
A: The KO 3BA-18-25490 is a brush pair (set of two) used in Komatsu electric lift truck motors. Carbon brushes maintain electrical contact between the stationary motor field and the rotating commutator, enabling continuous current flow and motor operation.
Q: Which Komatsu electric lift truck motors use the KO 3BA-18-25490?
A: The KO 3BA-18-25490 brush pair fits multiple Komatsu 3BA-series electric motor assemblies in lift trucks. These brushes are used in steering, mast drive, and travel motors. Confirm your motor series and brush dimensions before ordering.
Q: What material are the KO 3BA-18-25490 brushes made from?
A: The KO 3BA-18-25490 brushes are carbon-based, designed for electrical conductivity and wear resistance in commutated DC motors. Carbon material provides long service life while maintaining consistent electrical contact with minimal commutator wear.
Q: How long do the KO 3BA-18-25490 brushes last before replacement?
A: Brush life typically ranges from 3-7 years depending on motor duty cycle, load, and environmental conditions. Heavy-use trucks may require brush replacement sooner. Replace both brushes as a set to maintain balanced motor performance.
Q: What symptoms indicate the KO 3BA-18-25490 brushes need replacement?
A: Replace brushes if the motor runs poorly, makes grinding or arcing sounds, operates with reduced power, or if visible carbon dust is found around motor brush caps. Excessive brush wear reduces electrical contact, causing performance loss and commutator damage.
Q: Does the KO 3BA-18-25490 come as a pair or individual brush?
A: The KO 3BA-18-25490 is sold as a pair (set of two brushes). This ensures balanced brush wear patterns and consistent electrical contact across both motor poles. Always replace both brushes together, even if only one appears worn.