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Carbon Brushes

Baldor BP5031A01 Carbon Brush

Part No. BP5031A01.

The Baldor BP5031A01 is an OEM electrographite carbon brush assembly engineered for reliable commutation in Baldor/Reliance 5000-frame industrial DC motors. It delivers stable current transfer, low wear, and consistent commutator film performance for extended service life in continuous-duty applications.

Material	Electrographite (EG Grade)
Dimensions	0.500″ × 1.000″ × 1.500″
Application	Continuous-duty industrial DC motor commutation; designed for use in Baldor/Reliance GP5000 and BCD5000 frame DC motors operating in manufacturing, conveyor, extrusion, and material handling environments.
Voltage	Up to 240V DC
Current Density	8–12 A/cm²
Speed	Up to 25 m/s
Hardness	65–75 Shore

Compatible Models

Baldor BCD5000 Series DC Motors Baldor BC5000 Series DC Motors Reliance Electric GP5000 Frame DC Motors Baldor-Reliance DCT5000 Series DC Motors Baldor VS5000 Series DC Motors Baldor Super-E DC Motor (Brush-Equipped Variants) Reliance Electric C-Face DC Motors (5000 Frame) Baldor M5000 Series DC Motors

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Technical Specifications

Parameter	Value
Part Number	BP5031A01
Manufacturer	Baldor (ABB / Baldor-Reliance)
Product Type	Carbon Brush Assembly
Material	Electrographite (EG Grade)
Dimensions (W × T × L)	12.7 × 25.4 × 38.1 mm (0.500″ × 1.000″ × 1.500″)
Voltage Rating	Up to 240V DC
Current Density	8–12 A/cm²
Peripheral Speed	Up to 25 m/s
Hardness	65–75 Shore
Grade	Electrographite (EG)
Connection Type	Flexible braided copper shunt lead
Lead Type	Tamped-in insulated flexible copper
Spring Type	Constant-pressure coil spring
Spring Pressure	20–25 kPa
Application	Industrial DC motor commutation
Compatible Frame	Baldor / Reliance 5000 Frame
Operating Temperature	-20°C to +120°C
Certifications	UL, CSA
Country of Origin	USA

Compatible Models

This Baldor BP5031A01 Carbon Brush 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

The Baldor BP5031A01 Carbon Brush is a genuine OEM replacement brush assembly manufactured to exact specifications for Baldor (now ABB/Baldor-Reliance) industrial DC motors. This electrographite-grade brush is produced through a controlled high-temperature graphitization process that creates a uniform, dense carbon structure with excellent conductivity and self-lubricating properties essential for smooth commutation.

Designed specifically for the Baldor 5000-frame DC motor platform, the BP5031A01 maintains precise dimensional tolerances to ensure proper fit within the brush holder and consistent pressure against the commutator surface. The electrographite composition promotes the formation of a stable, protective oxide film on the commutator, which minimizes sparking, reduces friction wear, and extends both brush and commutator service life.

Each brush assembly includes a tamped-in flexible copper shunt lead for secure electrical connection and a calibrated constant-pressure spring mechanism to maintain optimal brush-to-commutator contact force across varying operating conditions. Regular inspection and timely replacement of worn brushes using this OEM-specified part ensures continued motor reliability and prevents costly commutator damage.