Pentair Sweep® I/II Axle and Impeller Thrust Bearing | LG31

Pentair Sweep® I/II Axle and Impeller Thrust Bearing | LG31 

Pentair LG31 thrust bearing for Sweep I/II systems. Supports axle and impeller movement, reducing friction and restoring valve efficiency.

• Fits Sweep® I & II Valve Systems – OEM replacement thrust bearing for in-floor pool cleaner axle and impeller assemblies.

• Supports Smooth Rotational Motion – Reduces friction and wear on key moving components inside the valve.

• Restores Proper Valve Operation – Essential for correcting sluggish or inconsistent cycling.

• Durable, Pool-Grade Material – Resistant to chlorinated water, pressure, and environmental stress.

• Ideal for Rebuilds & Preventative Maintenance – Replace worn bearings to maintain peak in-floor cleaning system performance.

The Pentair LG31 Axle and Impeller Thrust Bearing is a specialized internal support bearing for Sweep® I and II in-floor pool valve systems, designed to maintain proper rotation and alignment of the axle and impeller assembly. This small but vital component absorbs thrust and reduces friction, ensuring smooth and reliable valve cycling.

Constructed from durable, corrosion-resistant materials, the LG31 is built to endure the harsh demands of pool environments, including continuous motion, high water pressure, and chemical exposure. When thrust bearings wear down, it can result in erratic operation, reduced flow efficiency, or even internal damage.

Replacing a worn or seized bearing with the LG31 helps restore system balance, extend the lifespan of related parts, and maintain full functionality across all cleaning zones. Whether you’re tackling a full rebuild or simply replacing high-wear parts, this OEM-quality bearing is essential for long-term valve reliability.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.