Armstrong Fluid Technology 871101-704 Ball Bearing

The Armstrong Fluid Technology 871101-704 Outboard Ball Bearing is a high-performance replacement pump bearing specifically engineered for Armstrong Series 4030 pumps with "M" style bearing assemblies. This industrial-grade ball bearing is designed to support the mechanical integrity of Armstrong bearing frame assemblies, ensuring smooth shaft rotation and reduced friction in demanding HVAC and fluid-flow environments. Featuring a 45mm 6309-2RS configuration, this part is double-shielded to protect against contaminants and is permanently lubricated (Perm-Lube) to provide maintenance-free operation over its service life. Built from high-carbon chrome steel, it manages high radial and static loads, making it an essential component for restoring pump efficiency and preventing equipment downtime. Its precision ISO Class 0 construction and 7000 RPM limiting speed make it a reliable choice for maintaining 4030 series end suction pumps in critical commercial applications.

• Precision Performance: Engineered for Armstrong Series 4030 pumps to provide an exact fit and restore original equipment manufacturer (OEM) performance levels.
• Maintenance-Free Design: Features permanently greased 6309-2RS shielding that eliminates the need for periodic re-lubrication.
• High Load Capacity: Robust high-carbon chrome steel construction supports significant static and dynamic loads in heavy-duty HVAC pump repair.
• Contaminant Protection: The double-shielded design acts as a barrier against dust and debris, extending the operational life of the outboard ball bearing.
• Reduced Vibration: Precision-balanced to minimize friction, heat generation, and noise within the bearing frame.

What pump models are compatible with this bearing?
The Armstrong 871101-704 is specifically designed for Series 4030 end suction pumps using 143-184T and 213-215T "M" style bearing frames.

Does this bearing require manual lubrication during installation?
No, this is a Perm-Lube (permanently lubricated) part that is factory-sealed with high-quality grease for its entire functional lifespan.

Can this replace a standard shielded bearing?
Yes, this 6309-2RS ball bearing replaces various 45mm outboard bearings used in Armstrong assemblies, including part numbers 871101-704 and 971101-704.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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