40Pcs Electric Motor Carbon Brushes Set, 10 Different Models for Replacement Repair Power Tool Part, Circular Table Saw, Angle Grinders, Electric Hammer Drills

Product description

Carbon Brush Models and Applications

44#: 355 Cutter, Electric Hammer 153#: Cut-off Machine, Circular Saw, Drilling Machine 43#: Handheld Cutter, Drilling Machine, Grinder 303#: Stone Cutter, Electric Circular Saw 21#: Electric Hammer, Planer, Grinding Head 411#: Angle Grinder, Polisher 51#: Pistol Drill, Powder Machine, Blow Dryer, Mixer DW100#: DW803/801 Angle Grinder 6-100#: 100 Model Cutter, Electric Hammer

Important Notes

Initial Sparking: If sparks occur after installing new carbon brushes, continue running the machine for 1–2 minutes. The sparks will disappear naturally once the brushes are properly seated and worn in.Excessive Wear: If new brushes wear down abnormally fast, this is typically caused by an uneven commutator surface. Inspect the rotor for irregularities (e.g., grooves, protrusions, or damage) and address the root cause.Burned Brush Wires: If brush leads burn out immediately after installation: Stop using the device immediately to prevent further damage. Investigate potential causes: poor solder joints, short circuits, dust buildup, or other factors leading to excessive current flow.Pre-Check Requirement: Always verify the machine’s overall condition (e.g., commutator smoothness, electrical connections, rotor balance) before replacing brushes. Misdiagnosing brush issues may overlook underlying mechanical or electrical faults.

Material: Made with high-quality materials for enhanced durability. Features an all-copper connector, high hardness, and wear resistance. The alloy spring offers superior toughness and elasticity, while the copper wire ensures excellent conductivity, commutation, and current collection properties.
Size: The box dimensions are 20.2×10.7×1.7 cm, containing ten different sizes of carbon brushes, with 4 pieces of each size, 44#: 7x17x18mm, 153#: 6.5×13.5x18mm, 43#: 7x11x18mm, 303#: 5x11x18mm, 103#: 6x10x16mm, 21#: 6.5×7.5x13mm, 411#: 6x9x13mm, 51#: 5x8x13mm, DW100#: 6x8x14mm, 6-100#: 5x8x15mm, which can meet most needs. Please select the corresponding size based on your needs.
Applications: Brushes are widely compatible with various power tools and motors, including rotary hammers, circular saws, cutting saws, tile saws, motorcycles, track sanders, fan motors, angle grinders, vacuum cleaners, 614367-00, 5140033-19, and more.
Reminder: Carbon brushes are the most commonly replaced parts in power tools, as they gradually wear out due to friction and use. Replacing worn carbon brushes restores motor performance, fixing issues like intermittent function and reduced power. If brushes wear out quickly, it may indicate a rotor problem, requiring rotor replacement.
Service: Our carbon brushes are carefully designed, packaged, and shipped for long-lasting durability, minimal mechanical wear, and reduced frequency of replacement. We aim to provide the best experience for our customers. If you encounter any issues during use, feel free to contact us anytime; we are always available to assist you.