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Carbon Brush Holders

Insulated brush holder bolts

Insulated brush holder bolts/studs — mounting hardware that fixes brush holders to the rocker/end bracket with electrical isolation from the frame (insulating sleeves, bushings, washers; YZR-type insulating rods). Verify thread, length and insulation class per SKU

Application	Insulated brush holder bolts / studs — the mounting hardware that fixes brush holders to the brush rocker or end bracket while electrically isolating the brush circuit from the motor frame; standard in DC motor, generator and YZR crane-motor brush gea
Connection	Bolt/stud passes through the brush holder into the rocker/end bracket; insulating sleeve/bushings/washers isolate th

Compatible Models

DC motor brush rockers & end brackets (insulated mounting — verify) YZR crane / metallurgical motors (insulation brush holder rods — verified market type) Generator / slip-ring brush holder mounting (insulated studs — verify)

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Technical Specifications

Insulated Brush Holder Bolts / Studs — Category
Specification	Value
Product Type	Insulated brush holder bolts / studs
Function	Mount brush holders to rocker/end bracket with electrical isolation
Construction	Steel bolt/stud + insulating sleeve/bushings/washers (typical)
Insulation	Phenolic / glass-fiber / mica / YZR rubber-wood rods (per type)
Thread Size	Not specified — confirm
Length	Not specified — confirm
Applications	DC motors; generators; YZR crane motors; slip-ring brush gear
Key Requirement	Insulation integrity (failure shorts brush circuit to frame)

* Category-level listing based on brush-holder mounting hardware market data. Thread, insulation and dimensions per SKU.

Compatible Models

This Insulated brush holder bolts 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

Insulated brush holder bolts / studs — the mounting hardware that secures brush holders to the brush rocker or end bracket while electrically isolating the brush circuit from the motor frame. An insulation failure here shorts the brush circuit to ground, so the insulating sleeve, bushings and washers are the critical part of the assembly.Alibaba.com