Bearing Assembly, Lead Free (Series 60)

The Bell & Gossett 185332LF is a lead-free bearing assembly engineered to service and restore Series 60 circulator pumps in hydronic heating applications. This OEM replacement component features a copper shaft sleeve and Buna-N seal, delivering reliable operation for MF 60 pumps equipped with 5-1/4" and 6-1/4" impellers. Replacing the bearing assembly is the fastest repair path for Series 60 pumps experiencing bearing wear, shaft seal failure, or noise issues. This part supersedes the previous model 185332, providing the same fit and function while meeting current lead-free standards for potable water contact.

• Lead-Free Construction: Fully compliant bearing assembly eliminates lead exposure risks, meeting federal and state regulations for hydronic systems that may contact potable water.
• Copper Shaft Sleeve: The copper shaft sleeve provides corrosion resistance and smooth bearing surface contact, extending service life in continuous-duty heating applications.
• Buna-N Seal Material: Buna-N rubber seal delivers reliable leak prevention across typical heating system operating temperatures while resisting degradation from glycol-based antifreeze solutions.
• MF 60 Pump Compatibility: Engineered specifically for MF 60 maintenance-free pumps with 5-1/4" and 6-1/4" impellers, ensuring exact dimensional fit and proper shaft alignment.
• OEM Direct Replacement: Factory-engineered component matches original equipment specifications for bearing clearances, seal dimensions, and material composition, eliminating guesswork during repair.
• Complete Assembly Design: Arrives as a ready-to-install unit with integrated seal and bearing components, reducing repair time compared to replacing individual seal and bearing parts separately.

This bearing assembly is specified for use with Bell & Gossett Series 60 MF (maintenance-free) circulator pumps equipped with either 5-1/4 inch or 6-1/4 inch impellers. The manufacturer's replacement parts documentation confirms this part number (185332LF) as the correct bearing assembly for those pump configurations. Installation requires the pump to be drained, disconnected from power, and disassembled according to the Series 60 service procedure. This component replaces the entire bearing housing assembly, including the integrated shaft seal.

Installation requires draining the system and pump, disconnecting electrical power, and following the manufacturer's pump disassembly sequence to access the bearing assembly mounting location. Proper installation includes aligning the bearing assembly with the pump shaft, securing mounting fasteners to specification, and verifying free shaft rotation before reassembly. After installation, the system should be refilled, vented of air, and the pump tested for proper operation and absence of leaks at the seal interface. No periodic lubrication is required due to the maintenance-free bearing design.

A: The 185332LF is a lead-free bearing assembly designed to service Bell & Gossett Series 60 MF circulator pumps in hydronic heating systems. It is the correct replacement part for MF 60 pumps with 5-1/4 inch and 6-1/4 inch impellers. This assembly includes the copper shaft sleeve and Buna-N seal required to restore pump operation when bearing wear or seal failure occurs.

A: This bearing assembly is specified for Bell & Gossett Series 60 MF (maintenance-free) pumps equipped with 5-1/4 inch or 6-1/4 inch impellers. The manufacturer's parts documentation confirms compatibility with those specific MF 60 pump configurations. It is not interchangeable with other Series 60 variants or other Bell & Gossett pump series.