BELLMotor Couplers for Circulator Pumps

BELL & GOSSETT Circulating Pump Coupler: Mfr Part # 118724

The BELL & GOSSETT Circulating Pump Coupler, part number 118724, is a cast-iron motor coupler designed for use with Bell & Gossett LD3 series circulator pumps. It is compatible with Grainger part number 4RC97 and…

SKU 3G-OTH-83447

Brand

BELL

Item

& GOSSETT Circulating Pump Coupler: Mfr Part # 118724

Technical Specifications

BELL

Manufacturer Part Number

118724

Coupling Material

Cast Iron 

Compatible with Brand

Bell & Gossett 

Compatible with Series

LD3

Compatible with Grainger Part Number

4RC97 

Compatible with Manufacturer Model Number

102222

View Full Spec Sheet

Technical Documents

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BELL Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the BELL & GOSSETT 118724 circulating pump coupler used for?

The BELL & GOSSETT 118724 is a cast-iron motor coupler used to connect the motor shaft to the pump shaft in LD3 series circulator pumps. It transmits torque reliably in hydronic heating and cooling systems, ensuring efficient fluid circulation in commercial and industrial applications.

What are the specifications of the BELL & GOSSETT 118724 coupler?

The BELL & GOSSETT 118724 coupler is made of cast iron and is compatible with Bell & Gossett LD3 series circulator pumps. It also matches Grainger part number 4RC97 and manufacturer model number 102222. The manufacturer part number is 118724.

Where to buy the BELL & GOSSETT 118724 coupler worldwide?

3G Electric supplies the BELL & GOSSETT 118724 cast-iron coupler to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this genuine Bell & Gossett part for your LD3 pump.

How to install the BELL & GOSSETT 118724 coupler on a circulator pump?

To install the BELL & GOSSETT 118724 coupler, first disconnect power and drain the system. Align the pump and motor shafts, then slide the cast-iron coupler onto both shafts. Tighten set screws evenly to the manufacturer's torque specification. Always follow Bell & Gossett's installation manual for your LD3 series pump.

Used in

Common applications for BELL

Hydronic heating systems — BELL & GOSSETT Series 60 circulator pump impellers (p82880) for closed-loop hot water circulation.

Commercial HVAC maintenance — BELL & GOSSETT flange hardware kits (P64910) for securing pump flanges in chiller and boiler rooms.

Industrial fluid handling — BELL & GOSSETT isolation flanges (101223LF) for isolating pumps in process piping systems.

Outdoor electrical installations — BELL weatherproof covers (5028-0) for protecting receptacles in NEMA 3R environments.

Floor box access in commercial buildings — BELL brass floor box covers (6249) for flush-mounted electrical outlets in concrete floors.

Pump repair and retrofit — BELL & GOSSETT bearing assemblies (189105LF) for in-line circulating pumps in Series PR applications.

BELL Products

3G Electric supplies BELL motor couplers for circulator pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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