Brass Carbon Brush Holder For Dc Motor

Overview

Solid-brass carbon brush holder for DC motors — holds the carbon brush against the commutator and keeps stable, low-spark electrical contact under load. The brass body gives excellent conductivity, corrosion resistance and heat dissipation, while the spring system provides constant brush pressure.Alibaba.com

Construction

• Solid brass body (conductivity + corrosion resistance + heat dissipation)
• Spring-loaded brush pressure (coil/torsion spring, constant force)
• Brush box with fixing (slot/screw/quick-change per design)
• Insulating components (ceramic/plastic) for frame isolation
• Mounts to motor brush rocker / end bracket

Typical Applications

• Industrial DC motors (Z4-class and equivalents)
• DC traction motors (ZQ-series brush gear)
• Universal DC motors
• Alternators / generators with commutator or slip-ring brush rigging

Installation Notes

• Match the brush box opening (W × T) exactly to your carbon brush cross-section
• Brush must move freely in the box; remove any excess that causes sticking
• Spring must press on the brush center to avoid uneven wear
• Brush-to-commutator contact area should be ≥ 3/4 of the face广州市黄埔区湘潭电机修理厂

Before Ordering

• Confirm brush box size (width × thickness) and brush dimensions
• Confirm spring type / force and mounting pattern
• Confirm number of holders per motor and brush lead routing

Family-level listing. Each SKU must be verified for brush box size, spring type and mounting before listing.