⚙️ 118705 Bell & Gossett Cast Iron Coupler Assembly – 1/2" x 1/2" Spring Type
✅ Product Description
The Bell & Gossett 118705 Coupler Assembly is a durable, cast iron spring-type coupler engineered to connect motor shafts and pump shafts in Bell & Gossett circulators. Its flexible spring design absorbs misalignment, reduces vibration, and dampens noise, ensuring smoother and quieter pump operation.
This coupler assembly replaces 189110 and is widely used across several B&G pump models, including Series 100, Series HV, 2" Series, PR Series, and various obsolete pumps.
✅ Key Features
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✅ Cast Iron Construction – Strong and reliable for long-lasting performance.
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✅ Spring-Type Flexible Design – Absorbs vibration and reduces noise.
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✅ Direct Replacement – Replaces Bell & Gossett part number 189110.
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✅ Wide Compatibility – Fits Series 100, HV, PR, 2", and multiple obsolete B&G pumps.
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✅ OEM Quality – Genuine Bell & Gossett part for reliable pump operation.
📊 Specifications
| Specification | Detail |
|---|
| Part Number |
118705 |
| Material |
Cast Iron |
| Coupling Type |
Spring Type |
| Size |
1/2" x 1/2" |
| Replaces |
189110 |
| Used On |
Series 100, Series HV, 2" Series, PR Series, Obsolete 1", Obsolete 1-1/4", Obsolete 1-1/2", Obsolete HV, Obsolete 2" Series |
| Application |
Motor-to-pump coupler |
| Brand |
Bell & Gossett |
⚠️ Common Symptoms (When Replacement Is Needed)
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Excessive pump vibration or rattling noise.
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Worn, cracked, or broken coupler spring.
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Misalignment issues between motor and pump shaft.
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Reduced pump efficiency or operational noise.
❓ Frequently Asked Questions (FAQ)
Q: What does the 118705 replace?
A: It replaces the Bell & Gossett 189110 Coupler Assembly.
Q: What is the size of this coupler?
A: The coupler is 1/2" x 1/2" with a spring-type flexible design.
Q: Which pumps use this coupler?
A: It fits Series 100, HV, PR, 2" Series, and obsolete B&G pumps including 1", 1-1/4", 1-1/2", HV, and 2" models.
Q: What are the benefits of the spring-type coupler?
A: It reduces vibration, dampens noise, and compensates for slight misalignments.
🛒 Shopping Tips
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🔍 Match Your Old Part Number – If you’re replacing part 189110, this is the correct OEM replacement.
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⚙️ Inspect Coupler During Maintenance – A worn coupler often causes noise and vibration, so check it during pump service.
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📦 Check Pump Model – Verify compatibility with your B&G pump model before ordering.
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🛠️ Keep a Spare – Couplers are common wear parts; having an extra reduces downtime during repairs.
