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BOSTON GEAR FC12-3/8 High-Torque Straight Jaw Coupling Hub - High-Torque Straight Jaw Coupling Hubs
BOSTON GEARHigh-Torque Straight Jaw Coupling Hubs

BOSTON GEAR FC12-3/8 High-Torque Straight Jaw Coupling Hub

The BOSTON GEAR FC12-3/8 is a high-torque straight jaw coupling hub, part of the FC12 coupling size series. It features a 1 1/4 in outside diameter, is designed for inch keyed shafts, and is rated for 0.19 hp.

SKU 3G-OTH-146667

Also listed as: FC1238 · FC12 3 8 · FC12-3-8

Brand
BOSTON GEAR
Item
FC12-3/8 High-Torque Straight Jaw Coupling Hub
Part Number
FC12-3/8
Category
High-Torque Straight Jaw Coupling Hubs
Available to Order
Also known as:FC12-3/8BOSTON GEAR
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BOSTON GEAR
Manufacturer Part Number
FC12-3/8
Type
Inch, For Keyed Shaft Type
Outside Dia
1 1/4 in

Technical Documents

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

Product Description

The BOSTON GEAR FC12-3/8 is a high-torque straight jaw coupling hub, part of the FC12 coupling size series. It features a 1 1/4 in outside diameter, is designed for inch keyed shafts, and is rated for 0.19 hp.

Frequently Asked Questions

What is the BOSTON GEAR FC12-3/8 shaft coupler used for?

The BOSTON GEAR FC12-3/8 is a high-torque straight jaw coupling hub used to connect two rotating shafts in power transmission systems. It is designed for inch keyed shafts and is commonly applied in industrial machinery, conveyors, and pumps where misalignment compensation and torque transfer are needed.

What are the specifications of the BOSTON GEAR FC12-3/8 coupling?

The BOSTON GEAR FC12-3/8 is an FC12 size straight jaw coupling hub with a 1 1/4 in outside diameter. It is rated for 0.19 hp and designed for inch keyed shafts. The manufacturer part number is FC12-3/8, and it is made by BOSTON GEAR.

Where to buy BOSTON GEAR FC12-3/8 coupling worldwide?

3G Electric supplies the BOSTON GEAR FC12-3/8 coupling worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this high-torque straight jaw coupling hub for your power transmission needs.

How to select the right BOSTON GEAR coupling size?

To select the correct BOSTON GEAR coupling, match the FC12 size to your shaft diameter and keyway dimensions. Verify the outside diameter (1 1/4 in) and horsepower rating (0.19 hp) against your application torque and speed. Always consult the manufacturer's catalog for bore and keyway compatibility.

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
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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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