Product Description

The Rainbow & Rexair carbon brush holders (Star RX18) are genuine replacement components designed to maintain proper motor brush contact and electrical performance in compatible Rainbow and Rexair vacuum systems. Carbon brush holders are critical wear items that ensure consistent electrical connection between brushes and the motor commutator, directly affecting suction power and motor longevity.

These brush holders are engineered to factory specifications for seamless installation and performance. Worn or damaged brush holders lead to arcing, reduced motor efficiency, and diminished suction. Regular inspection and replacement of carbon brush holders as part of scheduled maintenance prevents motor damage and extends system life.

Compatible with Rainbow and Rexair central vacuum systems using the Star RX18 brush holder assembly. Consult your system documentation or contact Swiss Boy Vacuum to confirm exact compatibility with your model.

Swiss Boy Vacuum is an authorized Rainbow and Rexair dealer serving the Wasatch Front since 1963. Located in Bountiful, Utah, our expert technicians can assist with identification, installation, and system maintenance. Call 801-298-3656 for questions about your specific vacuum model.

Why Choose This Product?

• Genuine Rainbow & Rexair OEM part ensures factory performance standards
• Critical maintenance component that prevents motor damage and arcing
• Restores proper electrical contact between carbon brushes and motor commutator
• Direct replacement for worn or damaged brush holder assemblies
• Part # Star RX18 — widely recognized OEM component
• Extends motor life and maintains optimal suction performance

Specifications

• Brand: Rainbow / Rexair
• Part Number: Star RX18
• Category: Motor brush holder assembly
• Application: Central vacuum motor maintenance

Compatibility

• Rainbow Models: Systems using Star RX18 brush holder assembly
• Rexair Models: Compatible Rexair central vacuum systems

Use Case

Carbon brush holders are essential for homeowners and commercial property managers operating Rainbow or Rexair central vacuum systems who want to maintain peak motor performance and prevent costly motor replacement. When you notice reduced suction, motor noise, or visible wear on carbon brushes, worn brush holders are often the culprit. Replacing brush holders proactively during routine maintenance prevents motor arcing, electrical shorts, and complete motor failure. This is ideal for system owners who maintain their central vacuum through regular filter cleaning, brush inspection, and component replacement.