Unique-Bargains
Unique-Bargains 2 Pcs Carbon Brush 0.25 x 0.53 x 0.66" Pneumatic Accessory
Two carbon motor brushes measuring 17 x 13.5 x 6.5 mm with a 40 mm stretched length to restore electric motor contact
- Two brushes included for immediate motor repair
- Carbon-metal construction conducts current to rotor coils
- 17 x 13.5 x 6.5 mm size fits compatible tools
- Spring stretches to 40 mm for consistent contact
- 9 g total weight keeps assembly light
Motor carbon brush dimensions
These carbon motor brushes measure 17 mm by 13.5 mm by 6.5 mm and come in a pack of two. They suit DIY repairers restoring electric motors in power tools or small generators. Buyers who need a different cross-section or a larger quantity cannot use this set.
Spring-loaded contact length
Each brush extends to roughly 40 mm when the internal spring is fully stretched, maintaining pressure against the commutator during sustained operation. The spring force prevents arcing as the carbon wears down over hours of continuous use. Motors that require a fixed-length brush without spring travel will not accept these.
Commutator-fit cross-section
The 0.25-inch by 0.53-inch face is the single specification that determines whether the brush seats correctly in the holder and tracks the commutator. Verify the holder slot matches these exact dimensions before ordering.
Highlights
- Two brushes included for immediate motor repair
- Carbon-metal construction conducts current to rotor coils
- 17 x 13.5 x 6.5 mm size fits compatible tools
- Spring stretches to 40 mm for consistent contact
- 9 g total weight keeps assembly light
Specifications
| Brand | Unique Bargains |
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Questions about this item
How much heat or noise do these carbon brushes generate during continuous motor operation?
Carbon brushes themselves produce no measurable heat or noise; any temperature rise or sound comes from the motor's commutator and bearings, not from the 17 x 13.5 x 6.5 mm brushes.
What must I already own for these brushes to work in my tool?
You need an electric motor or generator that accepts 17 mm long by 13.5 mm wide by 6.5 mm high carbon brushes with a 40 mm stretched spring length.
Will these brushes fit older motors that used a different brush size?
They only fit motors designed for the exact 17 x 13.5 x 6.5 mm dimensions and 40 mm spring stretch; older motors with different brush sizes require their original specifications.
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