118706 Bell & Gossett

The B&G 118706 Coupler/Motor Mount Set

Bell & Gossett 118706 Coupler & Motor Mount Set – OEM Replacement for Series 100 HV and NFI Pumps

The Bell & Gossett 118706 coupler and motor mount set is a precise OEM replacement assembly designed for Series 100 HV and NFI circulator pumps. This kit includes a coupler ring and motor mounting components engineered to ensure a secure connection between the pump motor and impeller shaft — critical for smooth, efficient pump operation.

Whether you are performing maintenance or replacing worn gearing or mounting parts, the 118706 set provides durable, factory-engineered components that restore proper alignment and performance. This assembly is ideal for HVAC technicians, mechanical contractors, and facilities professionals working on hydronic heating, boiler circulation, and chilled water systems.

Features

• Bell & Gossett 118706 OEM coupler and motor mount set
• Compatible with Series 100 HV and NFI circulator pumps
• Includes coupler ring and motor mounting components for proper alignment
• Designed to ensure secure motor-to-pump shaft connection
• Helps reduce vibration, noise, and premature component wear
• Durable OEM construction for long service life
• Ideal for hydronic systems, boiler pumps, and HVAC circulators

Benefits & Applications

• Restores proper mechanical coupling and motor alignment
• Reduces noise and extends bearing and seal life
• OEM part ensures exact fit and performance
• Perfect for maintenance, repair, or retrofit jobs
• Critical component for reliable pump operation in HVAC and hydronic systems
• Trusted by contractors and maintenance teams for dependable service

Technical Specifications

Applications

• Replacement coupler/motor mount for Series 100 HV circulator pumps
• Replacement coupler/motor mount for NFI series circulator pumps
• OEM maintenance and repair kit for hydronic HVAC systems
• Hydronic heating and chilled water circulation systems
• Facility mechanical rooms and boiler pump assemblies

Always verify pump model compatibility before ordering replacement parts.

Installation & Use Notes

• Installation should be performed by qualified HVAC or pump service technicians
• Disconnect power and drain system prior to servicing a circulator pump
• Remove the old coupler/motor mount assembly carefully to avoid damage to the pump shaft or motor
• Install the new coupler and mount components ensuring proper alignment and secure fit
• After installation, test the pump for smooth, vibration-free operation
• Follow all applicable mechanical and safety codes during service

Why Buy from APEX Controls

• OEM Bell & Gossett replacement coupler and motor mount — no aftermarket substitutes
• Designed specifically for Series 100 HV and NFI hydronic pumps
• Ensures proper coupling and smooth operation
• Ideal for contractors, HVAC technicians, and maintenance professionals
• Trusted component supplier for hydronic and boiler system parts