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BOSTON GEAR FC38 1-7/8 High-Torque Straight Jaw Coupling Hub - High-Torque Straight Jaw Coupling Hubs
BOSTON GEARHigh-Torque Straight Jaw Coupling Hubs

BOSTON GEAR FC38 1-7/8 High-Torque Straight Jaw Coupling Hub

The BOSTON GEAR FC38 Shaft Coupler Body is a high-torque straight jaw coupling hub in inch size, designed for keyed shaft types. It has a 3 3/4 in outside diameter and is identified by manufacturer part number FC38…

SKU 3G-OTH-146682

Also listed as: FC38178 · FC38 1 7 8 · FC38-1-7-8

Brand
BOSTON GEAR
Item
FC38 1-7/8 High-Torque Straight Jaw Coupling Hub
Part Number
FC38 1-7/8
Category
High-Torque Straight Jaw Coupling Hubs
Available to Order
Also known as:FC38 1-7/8BOSTON GEAR
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

BOSTON GEAR
Manufacturer Part Number
FC38 1-7/8
Type
Inch, For Keyed Shaft Type
Outside Dia
3 3/4 in

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

Product Description

The BOSTON GEAR FC38 Shaft Coupler Body is a high-torque straight jaw coupling hub in inch size, designed for keyed shaft types. It has a 3 3/4 in outside diameter and is identified by manufacturer part number FC38 1-7/8.

Frequently Asked Questions

What is the BOSTON GEAR FC38 shaft coupler used for?

The BOSTON GEAR FC38 shaft coupler is used to connect two rotating shafts in industrial power transmission systems. It is a high-torque straight jaw coupling hub designed for keyed shafts, commonly applied in conveyors, pumps, and gearboxes where misalignment compensation and torque transfer are required.

What are the specifications of the BOSTON GEAR FC38 1-7/8 coupling?

The BOSTON GEAR FC38 coupling has a 3 3/4 in outside diameter and is designed for inch keyed shafts. The manufacturer part number is FC38 1-7/8. It is a high-torque straight jaw coupling hub suitable for industrial power transmission applications requiring reliable torque transfer and misalignment accommodation.

Where to buy BOSTON GEAR FC38 coupling worldwide?

You can source the BOSTON GEAR FC38 coupling worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine BOSTON GEAR components for power transmission needs.

How to select the right BOSTON GEAR shaft coupler size?

To select the correct BOSTON GEAR shaft coupler, match the coupling size (e.g., FC38) to your shaft diameter and keyway dimensions. Verify the outside diameter (3 3/4 in for FC38) and torque requirements. Always consult the manufacturer's catalog for bore range and misalignment ratings to ensure proper fit and performance.

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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