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BOSTON GEAR FC20-3/4 High-Torque Straight Jaw Coupling Hub - High-Torque Straight Jaw Coupling Hubs
BOSTON GEARHigh-Torque Straight Jaw Coupling Hubs

BOSTON GEAR FC20-3/4 High-Torque Straight Jaw Coupling Hub

The BOSTON GEAR Shaft Coupler Body is a High-Torque Straight Jaw Coupling Hub in FC20 Coupling Size, with a 2 in Outside Dia and 3 11/16 in Coupling Overall Lg (MPN FC20-3/4). 3G Electric interprets your demand for…

SKU 3G-OTH-146650

Also listed as: FC2034 · FC20 3 4 · FC20-3-4

Brand
BOSTON GEAR
Item
FC20-3/4 High-Torque Straight Jaw Coupling Hub
Part Number
FC20-3/4
Category
High-Torque Straight Jaw Coupling Hubs
Available to Order
Also known as:FC20-3/4BOSTON GEAR
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Technical Specifications

BOSTON GEAR
Manufacturer Part Number
FC20-3/4
Outside Dia
2 in
Coupling Overall Lg
3 11/16 in

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

Product Description

The BOSTON GEAR Shaft Coupler Body is a High-Torque Straight Jaw Coupling Hub in FC20 Coupling Size, with a 2 in Outside Dia and 3 11/16 in Coupling Overall Lg (MPN FC20-3/4). 3G Electric interprets your demand for this genuine industrial component, sourcing it across 14 departments with specialist depth in power transmission and controls.

Frequently Asked Questions

What is a BOSTON GEAR FC20-3/4 shaft coupler used for?

The BOSTON GEAR FC20-3/4 is a high-torque straight jaw coupling hub used to connect two rotating shafts in industrial power transmission systems. It is commonly applied in pumps, gearboxes, conveyors, and compressors where misalignment compensation and torque transfer are required.

What are the specifications of the BOSTON GEAR FC20-3/4 coupling?

The BOSTON GEAR FC20-3/4 coupling body has an FC20 coupling size, 2 in outside diameter, and 3 11/16 in overall length. It is a high-torque straight jaw coupling hub designed for reliable shaft connection in industrial machinery. The manufacturer part number is FC20-3/4.

Where to buy BOSTON GEAR FC20-3/4 coupling worldwide?

3G Electric supplies the BOSTON GEAR FC20-3/4 coupling worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this high-torque straight jaw coupling hub.

How to select the right BOSTON GEAR shaft coupling for an application?

To select the correct BOSTON GEAR shaft coupling, match the bore size, outside diameter, and overall length to your shaft dimensions and torque requirements. The FC20-3/4 is a straight jaw coupling hub suitable for moderate misalignment. Always verify shaft keyway and fit before installation.

Used in

Common applications for BOSTON GEAR
Conveyor systems — Boston Gear FC38 polyurethane spider insert (XFCA38) for torque transmission and misalignment compensation.
Pump drives — Boston Gear FC15 oil-impregnated spider insert (XFCBB15) to dampen vibration in continuous-duty pump applications.
Mixers and agitators — Boston Gear speed reducers with cast iron housings for speed reduction and torque multiplication.
Packaging machinery — Boston Gear FC12 synthetic rubber spider insert (XFCR12) for shock absorption in start-stop cycles.
Fans and blowers — Boston Gear FC45 oil-impregnated spider insert (XFCBB45) for high-torque power transmission.
Material handling — Boston Gear shaft-mounted speed reducers for conveyor and bulk handling drive systems.
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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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Inch-series straight jaw coupling hub for keyed shafts, with 4 1/2 in outside diameter. Used in power transmission systems to connect rotating shafts in pumps, compressors, conveyors, and gearboxes, accommodating misalignment while transmitting torque
BOSTON GEAR
Inch-series straight jaw coupling hub for keyed shafts, with 4 1/2 in outside diameter. Used in power transmission systems to connect rotating shafts in pumps, compressors, conveyors, and gearboxes, accommodating misalignment while transmitting torque

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