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Twenty rectangular carbon brushes with metal connectors, each 17 by 13 by 6 mm

Unique-Bargains

Unique-Bargains CB153 Carbon Brushes 17x13x6mm 20 Pcs

SKU CH-S1JM-J69AA

Pack of 20 carbon motor brushes measuring 17 x 13 x 6 mm for electric motor repair

  • Product typeOther Accessories
  • Restores motor performance with 20 replacement carbon brushes
  • Precise 17mm x 13mm x 6mm fit for CB153 motors
  • Fixes intermittent running caused by worn brushes
  • Enables electric braking function after installation
  • Ready-to-use 135g pack includes 20 pieces

CB153 Carbon Brush Dimensions

These CB153 carbon brushes measure 17mm by 13mm by 6mm and come in a pack of twenty pieces. They suit hobbyists repairing small electric motors in drones or RC toys. The carbon and metal construction matches many standard motor holders. Buyers needing a different cross-section or a larger quantity per pack should look elsewhere.

Wear Behaviour Under Load

Carbon material wears gradually as it conducts current to the commutator, so motor performance stays consistent until the brush length is significantly reduced. Intermittent running or loss of electric braking often signals that the brushes have reached their practical limit. Regular inspection prevents sudden failure during extended sessions. Motors requiring brushes with different wear characteristics will not accept this size.

Dimensional Fit Limits

The 17mm length, 13mm width and 6mm thickness define the only motors these brushes can serve; holders machined for other dimensions cannot use them. Total brush length is approximately 4.5cm including the shunt and spring assembly. Attempting to file or shim an ill-fitting brush risks poor contact and accelerated commutator wear. Builders whose motor specs call for a different footprint must source the correct part.

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Price $6.99
Typical for this category: the median of 21 items is $6.99.

Specifications

Product
Brand nameUnique Bargains
Product typeOther Accessories

Questions about this item

How much heat or power draw should I expect from the CB153 carbon brushes during continuous daily operation?

The brushes themselves draw no power and generate negligible heat; they simply conduct current to the commutator, so motor temperature depends on the tool's load, not the 20-piece set.

What motor or holder dimensions must I already have for these 17 mm × 13 mm × 6 mm brushes to fit?

You need a brush holder that accepts a 17 mm length, 13 mm width and 6 mm thickness carbon block with a total brush length around 4.5 cm.

Will the CB153 brushes work in an older motor that originally used a different grade of carbon?

They are standard carbon-metal composition replacements; if the original brushes match the 17×13×6 mm size, these 20 pieces will restore contact and electric braking function.

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