Mersen CQC Carbon Brush Grade CG665

Description

This is a high-performance carbon brush from Mersen, part number/grade CG665. The CG665 grade is a carbon-graphite material known for its excellent commutating properties and long service life, making it ideal for DC motors and generators operating under demanding conditions. This brush features a dual-lead design with forked terminals for secure and reliable electrical contact.

Specifications

• Manufacturer: Mersen
• Brand: CQC (Carbone de Qualite Competitive)
• Material Grade: CG665
• Product Type: Carbon Brush
• Lead Configuration: Dual flexible leads with forked terminals

Label Info

• Brand Marking: CQC
• Grade Marking: CG665

Application

Designed for use in a wide range of industrial applications including traction motors, elevators, mining equipment, paper mills, and other heavy-duty DC motor and generator systems where reliability is critical.

Country of Origin

France

CO2 Impact

By purchasing this pre-owned component, you contribute to a circular economy and help avoid the emission of approximately 3.0 kg of CO2, which is comparable to the savings from driving 15 km in a standard car.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

CG665 is a Mersen material grade designation for a specific carbon-graphite composite. It is engineered for low friction, good load-carrying capacity, and excellent commutation, which helps reduce sparking and commutator wear in DC machines.

While the grade CG665 is critical for electrical performance, you must also match the brush's physical dimensions (length, width, thickness) to your motor's brush holder. Please measure your existing brush or holder carefully before purchasing.

It is strongly recommended to use the grade specified by the motor manufacturer. Using a different grade can lead to poor performance, excessive sparking, and accelerated wear of the commutator. Consult a motor specialist if you are considering a substitution.

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Last Update: Friday, March 13, 2026