Bell & Gossett 118848 Ring Mount

The Bell & Gossett 118848 Ring Mount, also identified by part number M71583, is a critical isolation component engineered specifically for HVAC centrifugal pumps and circulator motor assemblies. Unlike generic rubber mounts, this Bell & Gossett motor mount is designed to provide precise alignment while absorbing the high-frequency vibrations and harmonics generated during continuous operation. As a veteran technician, you know that a degraded vibration isolator leads to premature bearing failure and excessive mechanical noise. This OEM replacement part ensures the motor remains securely seated within the bracket, maintaining the necessary clearance for the coupler and bearing assembly. Specifically compatible with older Series 100, HV, and 2-inch pumps, this resilient mount is built to withstand the thermal stress and oil exposure common in boiler rooms. Utilizing the B&G 118848 ensures your installation meets original equipment manufacturer tolerances for operational stability and long-term system reliability.

• Precision Fit: Engineered as a direct OEM replacement ring mount for the B&G M71583, ensuring no-slip motor stability.
• Vibration Dampening: High-grade elastomeric material specifically tuned to isolate circulator motor harmonics from the piping system.
• Industrial Durability: Optimized for resistance to petroleum-based lubricants and high ambient boiler room temperatures.
• Compatibility: Critical component for restoring Series 100 circulator performance and reducing mechanical resonance.

Common Technical Questions

Does this ring mount fit the 1/12 HP Series 100 motors?
Yes, the 118848 mount is the standard specification for the Bell & Gossett Series 100 and HV models, fitting the cradle-style motor brackets used in these circulators.

Why is my circulator making a humming sound even after oiling?
If the motor is properly lubricated, the resilient motor mount has likely hardened or compressed over time, allowing vibration to transfer directly to the pump housing and piping.

How can I identify if I need the M71583 or a different mount?
Check the motor diameter and the cradle bracket. The B&G M71583 is designed for the standard NEMA frame sizes typically found on fractional horsepower red-bodied B&G pumps.

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.