مسفرات كربونية (فحمات) من (Makita) نوع (CB-303)

CB303 is designed for Makita tools that use CB303-sized carbon brushes. Compatibility depends on the model, so confirm that your tool uses CB303 brushes before replacing. If in doubt, compare the brush size and holder design to the CB303 replacement part.

Key features include: high-quality carbon composition for reliable conductivity, precision engineered fit for compatibility, efficient power transfer to optimize motor performance, self-lubricating design to minimize friction and wear, arc protection for smoother operation, a compact and durable build, easy replacement, and support for consistent motor performance to prolong tool lifespan.

CB303, CB311, and CB315 are all Makita carbon brush sets designed for different tool families. They share core benefits like reliable conduction and wear‑reduction, but each is sized to fit specific models. If you’re considering alternatives, you can view: CB311 at https://fepy.com/product/makita-cb311-carbon-brush-set and CB315 at https://fepy.com/product/makita-cb315-carbon-brush-set to assess fit and compatibility with your tool. Choose the one that matches your tool’s brush size and holder design.

Replace CB303 when you notice reduced motor performance, intermittent power, increased sparking, unusual tool noise, or visible wear on the carbon brushes. Regular replacement helps maintain peak efficiency and prevents potential damage to the motor’s commutator.

General steps: (1) unplug or remove the tool from power; (2) open the brush-access area and remove the brush caps; (3) carefully disconnect and remove the old brushes and springs; (4) compare and orient the new CB303 brushes so the contact surface faces the commutator; (5) insert the new brushes and springs, ensuring smooth, full travel without binding; (6) re-seat the brush caps and any covers; (7) reassemble the tool and test under no-load to verify smooth operation.

Avoid forcing brushes or springs, which can damage the holder or brushes. Ensure correct orientation and seating so the contact surface engages the commutator properly. Do not reuse damaged springs or caps, and verify that the brush moves freely within its holder without catching or binding before reassembly.

CB303 is well-suited for professional and DIY tasks that involve Makita tools using CB303 brushes, including construction, woodworking, metal fabrication, and general maintenance tasks where reliable power delivery and reduced wear are important for consistent results.

By providing fresh, properly seated carbon contacts, CB303 reduces wear on the commutator, maintains efficient current transfer, minimizes arcing, and sustains stable motor performance. This reduces heat buildup and downtime, supporting longer tool life between major servicing.

Always unplug the tool and remove any power source before servicing. Wear eye protection and gloves, handle brushes carefully to avoid damaging the contact surfaces, and ensure the tool is fully de-energized before installation. Follow the tool’s service manual for model-specific instructions.

Yes, CB303 is a genuine Makita replacement part designed for precise fit and reliable performance. Its focus on consistent power transfer, reduced wear, and easier maintenance makes it a cost-effective choice for professional use, minimizing downtime and protecting tool longevity.

If you’re exploring alternatives on Fepy, consider CB311 and CB315 as closely related options. CB311 is available at https://fepy.com/product/makita-cb311-carbon-brush-set and CB315 at https://fepy.com/product/makita-cb315-carbon-brush-set. These options are suitable for different Makita models that require their respective brush sizes.