Nordyne 626553R Limit Switch
The Bell & Gossett 189105LF bearing assembly is a precision-engineered replacement component for Series PR, Series HD3, Series LD3, and Series 2-1/2 hydronic booster pumps. This 1/2-inch shaft assembly arrives as a pre-assembled unit within a new pump housing, significantly reducing field labor by including the critical oil lube bearing, precision-ground shaft, shaft sleeve, and a high-performance 118681LF seal kit. Built for high-head industrial and commercial circulation, this lead-free assembly (casting number P77176) is designed to handle the rigorous thermal expansion and mechanical loads found in large-scale HVAC systems. Integrating a factory-sealed unit ensures that the body gasket and internal alignment meet exact OEM tolerances, preventing the premature failure often associated with component-level field rebuilds. For technicians managing older bronze or cast iron circulators, this assembly also includes the necessary volute cover gasket and B&G pump lubrication oil, facilitating a complete, professional-grade service of the pump’s rotating element without requiring specialized pressing tools on-site.
Key Benefits- Factory Precision: Pre-assembled housing ensures perfect shaft alignment, reducing vibration and extending the operational life of the mechanical seal.
- Comprehensive Service Kit: Includes the 1/2" shaft, front bearing, oil wicks, and a new volute gasket for a complete restoration of the pump’s wet end.
- Interchangeable Compatibility: Directly replaces obsolete part numbers P3Z-12351, P4Z-12351, and the older 189105 models.
- Enhanced Durability: Features high-grade sleeve bearings and a 1/2" lead-free shaft designed to withstand continuous-duty hydronic heating applications.
Is the mechanical seal pre-installed? Yes, the mechanical seal kit is factory-pressed and seated within the assembly to prevent installation-related leaks and ensure a watertight fit against the volute.
Does this unit require lubrication before startup? While it includes a tube of B&G lubrication oil, technicians should verify that the oil wicks are fully saturated with approximately 1 oz. of 20-weight non-detergent oil at the time of installation.
Will this fit Series 60 pumps? No, this assembly is specific to 1/2" shaft Series PR, HD3, LD3, and 2-1/2 pumps. Series 60 pumps typically require a different bearing bracket size and seal configuration.
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.
Original: $32.05
-65%$32.05
$11.22Nordyne 626553R Limit Switch
The Bell & Gossett 189105LF bearing assembly is a precision-engineered replacement component for Series PR, Series HD3, Series LD3, and Series 2-1/2 hydronic booster pumps. This 1/2-inch shaft assembly arrives as a pre-assembled unit within a new pump housing, significantly reducing field labor by including the critical oil lube bearing, precision-ground shaft, shaft sleeve, and a high-performance 118681LF seal kit. Built for high-head industrial and commercial circulation, this lead-free assembly (casting number P77176) is designed to handle the rigorous thermal expansion and mechanical loads found in large-scale HVAC systems. Integrating a factory-sealed unit ensures that the body gasket and internal alignment meet exact OEM tolerances, preventing the premature failure often associated with component-level field rebuilds. For technicians managing older bronze or cast iron circulators, this assembly also includes the necessary volute cover gasket and B&G pump lubrication oil, facilitating a complete, professional-grade service of the pump’s rotating element without requiring specialized pressing tools on-site.
Key Benefits- Factory Precision: Pre-assembled housing ensures perfect shaft alignment, reducing vibration and extending the operational life of the mechanical seal.
- Comprehensive Service Kit: Includes the 1/2" shaft, front bearing, oil wicks, and a new volute gasket for a complete restoration of the pump’s wet end.
- Interchangeable Compatibility: Directly replaces obsolete part numbers P3Z-12351, P4Z-12351, and the older 189105 models.
- Enhanced Durability: Features high-grade sleeve bearings and a 1/2" lead-free shaft designed to withstand continuous-duty hydronic heating applications.
Is the mechanical seal pre-installed? Yes, the mechanical seal kit is factory-pressed and seated within the assembly to prevent installation-related leaks and ensure a watertight fit against the volute.
Does this unit require lubrication before startup? While it includes a tube of B&G lubrication oil, technicians should verify that the oil wicks are fully saturated with approximately 1 oz. of 20-weight non-detergent oil at the time of installation.
Will this fit Series 60 pumps? No, this assembly is specific to 1/2" shaft Series PR, HD3, LD3, and 2-1/2 pumps. Series 60 pumps typically require a different bearing bracket size and seal configuration.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Bell & Gossett 189105LF bearing assembly is a precision-engineered replacement component for Series PR, Series HD3, Series LD3, and Series 2-1/2 hydronic booster pumps. This 1/2-inch shaft assembly arrives as a pre-assembled unit within a new pump housing, significantly reducing field labor by including the critical oil lube bearing, precision-ground shaft, shaft sleeve, and a high-performance 118681LF seal kit. Built for high-head industrial and commercial circulation, this lead-free assembly (casting number P77176) is designed to handle the rigorous thermal expansion and mechanical loads found in large-scale HVAC systems. Integrating a factory-sealed unit ensures that the body gasket and internal alignment meet exact OEM tolerances, preventing the premature failure often associated with component-level field rebuilds. For technicians managing older bronze or cast iron circulators, this assembly also includes the necessary volute cover gasket and B&G pump lubrication oil, facilitating a complete, professional-grade service of the pump’s rotating element without requiring specialized pressing tools on-site.
Key Benefits- Factory Precision: Pre-assembled housing ensures perfect shaft alignment, reducing vibration and extending the operational life of the mechanical seal.
- Comprehensive Service Kit: Includes the 1/2" shaft, front bearing, oil wicks, and a new volute gasket for a complete restoration of the pump’s wet end.
- Interchangeable Compatibility: Directly replaces obsolete part numbers P3Z-12351, P4Z-12351, and the older 189105 models.
- Enhanced Durability: Features high-grade sleeve bearings and a 1/2" lead-free shaft designed to withstand continuous-duty hydronic heating applications.
Is the mechanical seal pre-installed? Yes, the mechanical seal kit is factory-pressed and seated within the assembly to prevent installation-related leaks and ensure a watertight fit against the volute.
Does this unit require lubrication before startup? While it includes a tube of B&G lubrication oil, technicians should verify that the oil wicks are fully saturated with approximately 1 oz. of 20-weight non-detergent oil at the time of installation.
Will this fit Series 60 pumps? No, this assembly is specific to 1/2" shaft Series PR, HD3, LD3, and 2-1/2 pumps. Series 60 pumps typically require a different bearing bracket size and seal configuration.
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.
