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BOSTON GEAR Shaft Coupler Body: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch - High-Torque Straight Jaw Coupling Hubs
BOSTON GEARHigh-Torque Straight Jaw Coupling Hubs

BOSTON GEAR Shaft Coupler Body: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch

SKU 3G-OTH-146659

Brand
BOSTON GEAR
Item
Shaft Coupler Body: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch
Category
High-Torque Straight Jaw Coupling Hubs
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Technical Specifications

BOSTON GEAR
Manufacturer Part Number
FC45 1-7/8
Type
Inch, For Keyed Shaft Type
Outside Dia
4 1/2 in
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Technical Documents

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BOSTON GEAR Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is a BOSTON GEAR FC45 shaft coupler used for?

The BOSTON GEAR FC45 straight jaw coupling hub connects two rotating shafts in power transmission systems, compensating for minor misalignment while transmitting torque. It is commonly used in industrial machinery, conveyors, pumps, and gearboxes across machining, material handling, and other plant-floor applications.

What are the specifications of the BOSTON GEAR FC45 1-7/8 coupling?

This BOSTON GEAR FC45 coupling hub has a 4 1/2 in outside diameter, fits inch keyed shafts, and is part of the high-torque straight jaw coupling series. The manufacturer part number is FC45 1-7/8. It is designed for reliable torque transmission in industrial power transmission systems.

Where to buy BOSTON GEAR FC45 couplings worldwide?

3G Electric supplies BOSTON GEAR FC45 couplings worldwide, handling full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine parts across 14 departments, including power transmission. Contact us for pricing and lead time on this coupling hub.

How to select the right BOSTON GEAR jaw coupling hub?

To select the correct BOSTON GEAR jaw coupling hub, match the outside diameter and bore size to your shaft dimensions, and confirm the coupling type (straight jaw for high torque). Verify shaft keyway size and ensure the hub material suits your operating environment. Consult a power transmission specialist for application-specific guidance.

Used in

Common applications for BOSTON GEAR
Material handling conveyors — Boston Gear worm gear speed reducers for belt drives
Packaging machinery — Boston Gear helical gear reducers for precise indexing
Food processing equipment — Boston Gear stainless steel speed reducers for washdown environments
Industrial pump drives — Boston Gear clamp collars for shaft coupling alignment
Mixer and agitator systems — Boston Gear oil-impregnated spider inserts for torque transmission
Automated assembly lines — Boston Gear mounting bases for horizontal reducer installation

BOSTON GEAR Products

3G Electric supplies BOSTON GEAR high-torque straight jaw coupling hubs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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