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BOSTON GEAR High-Torque Straight Jaw Coupling Hub - High-Torque Straight Jaw Coupling Hubs
BOSTON GEARHigh-Torque Straight Jaw Coupling Hubs

BOSTON GEAR High-Torque Straight Jaw Coupling Hub

The BOSTON GEAR High-Torque Straight Jaw Coupling Hub (FC30 Coupling Size, MPN FC30 1-1/8) has a 3 in outside diameter and a 5 15/32 in coupling overall length. This OEM shaft coupler body is supplied by 3G Electric…

SKU 3G-OTH-146655

Also listed as: FC30118 · FC30 1 1 8 · FC30-1-1-8

Brand
BOSTON GEAR
Item
High-Torque Straight Jaw Coupling Hub
Part Number
FC30 1-1/8
Category
High-Torque Straight Jaw Coupling Hubs
Available to Order
Also known as:FC30 1-1/8BOSTON GEAR
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Technical Specifications

BOSTON GEAR
Manufacturer Part Number
FC30 1-1/8
Outside Dia
3 in
Coupling Overall Lg
5 15/32 in

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

Product Description

The BOSTON GEAR High-Torque Straight Jaw Coupling Hub (FC30 Coupling Size, MPN FC30 1-1/8) has a 3 in outside diameter and a 5 15/32 in coupling overall length. This OEM shaft coupler body is supplied by 3G Electric, a global industrial solutions provider that interprets customer demand and delivers genuine equipment across 14 departments, with specialist depth in combustion, pumps and controls.

Frequently Asked Questions

What is a BOSTON GEAR FC30 shaft coupler used for?

The BOSTON GEAR FC30 shaft coupler 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 tolerance and torque transfer are required.

What are the specifications of the BOSTON GEAR FC30 1-1/8 coupling?

The BOSTON GEAR FC30 1-1/8 coupling has a 3-inch outside diameter and a 5 15/32-inch overall length. It is a high-torque straight jaw coupling hub designed for shaft sizes matching the FC30 size. The manufacturer part number is FC30 1-1/8.

Where to buy BOSTON GEAR FC30 couplings worldwide?

You can source BOSTON GEAR FC30 couplings 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 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 coupling size (e.g., FC30) to your shaft diameters and torque requirements. Verify the outside diameter and overall length fit your application space. For high-torque straight jaw hubs, ensure the hub bore matches your shaft size precisely.

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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