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Carbon Brush Holders

Railway Brass Carbon Brush Holder

Railway brass carbon brush holder — precision-cast copper/brass brush boxes (16×32 to 25×50 mm class) with constant-pressure springs, for ZQ-series, GE-752, EMD D77 and Z4 traction motors. Verify size & motor model before ordering.

Material	Cast brass / precision-cast all-copper brush boxes and holders
Application	Brass carbon brush holder for railway traction motors — holds the carbon brush on the commutator under spring pressure, conducting traction current in locomotive and mining-vehicle DC motors; used with constant-pressure springs and brush-frame rings.

Compatible Models

**ZQ-series** DC traction motors (ZQ-30 ZQ350-class Xiangtan 150T locomotive) — verify GE **GE-752** traction motors (locomotive class) — verify EMD **D77** traction motors — verify Z4-series DC motors (brush holder 16×32 class) — verify Mining locomotive traction motors — verify **Always verify**: brush-box size

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Technical Specifications

Railway Brass Carbon Brush Holder (Cast Copper Brush Box)
Specification	Value
Product Type	Carbon brush holder (railway, brass)
Material	Cast brass / precision-cast all-copper
Brush Box Sizes	16×32 / 20×32 / 20×64 / 25×50 mm class — verify
Spring	Constant-pressure
Application	Railway traction motors (locomotive & mining)
Fits	ZQ-series (ZQ-30, ZQ350); GE-752; EMD D77; Z4 — verify
Mounting	Brush-frame ring

* Listing based on 1688/Alibaba and Made-in-China channel data. Fitment to be confirmed per motor.

Compatible Models

This Railway Brass Carbon Brush Holder 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

Railway brass carbon brush holder — precision-cast all-copper/brass brush boxes that hold traction carbon brushes on the commutator under spring pressure, conducting DC traction current reliably in locomotive and mining-vehicle motors.阿里巴巴