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Carbon Brush Holders

Electric Train graphite brush holders

Electric train graphite brush holders — brass/copper insulated brush boxes (12.5×25×40 to 20×32 mm class) with constant-pressure springs, holding graphite brushes on traction commutators & slip rings. Fits GE-752, EMD D77/D29/D31, ZD/ZQ, HXD & metro/EMU; verify per motor.

Material	Brass / bronze / precision-cast copper brush boxes and holders with insulated studs
Application	Graphite carbon brush holders for electric trains — hold graphite brushes against the commutator (DC traction motors) or slip rings (traction alternators) under spring pressure, delivering traction current in electric locomotives, EMU, metro and minin

Compatible Models

GE **GE-752** traction motors — verify EMD **D77 / D29 / D31** traction motors — verify CRRC-class **ZD / ZQ-series** (ZQ-4B 3.5 kW class DF4-type traction) — verify **HXD / EMU / metro** electric train traction systems — verify **Always verify**: brush-box size mounting and motor modelMade-in-China.comAlibaba.com

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Technical Specifications

Electric Train Graphite Brush Holders
Specification	Value
Product Type	Carbon brush holder (electric train, graphite brush)
Material	Brass / cast copper, insulated
Brush Box Classes	12.5×25×40 / 16×32 / 20×32 mm; traction 10×43×55 mm — verify
Spring	Constant-pressure
Application	Electric train traction (locomotive, EMU, metro, mining)
Fits	GE-752; EMD D77/D29/D31; ZD/ZQ (ZQ-4B); HXD — verify
Mounting	Brush-frame ring

* Listing based on 1688, Alibaba, Made-in-China, VOCarbon and Casram data. Fitment to be confirmed per motor.

Compatible Models

This Electric Train graphite brush holders is designed as a direct replacement for the following machine models and series:

Not sure if it fits your machine? Send us your equipment model, motor type or original part number — our engineers will confirm compatibility and advise the correct grade. Ask an engineer →

Description

Overview

Electric train graphite brush holders — precision brass/copper holders that carry graphite carbon brushes on electric-train traction machines, pressing them onto the commutator (DC traction motors) or slip rings (traction alternators) under constant-pressure spring force.