Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
BOSTON GEAR FC38 1-1/2 High-Torque Straight Jaw Coupling Hub - High-Torque Straight Jaw Coupling Hubs
BOSTON GEARHigh-Torque Straight Jaw Coupling Hubs

BOSTON GEAR FC38 1-1/2 High-Torque Straight Jaw Coupling Hub

The BOSTON GEAR FC38 Shaft Coupler Body is a high-torque straight jaw coupling hub, sized FC38 with a 3 3/4 in outside diameter. Designed for inch keyed shafts, this component (MPN FC38 1-1/2) provides a direct-fit…

SKU 3G-OTH-146661

Also listed as: FC38112 · FC38 1 1 2 · FC38-1-1-2

Brand
BOSTON GEAR
Item
FC38 1-1/2 High-Torque Straight Jaw Coupling Hub
Part Number
FC38 1-1/2
Category
High-Torque Straight Jaw Coupling Hubs
Available to Order
Also known as:FC38 1-1/2BOSTON GEAR
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

BOSTON GEAR
Manufacturer Part Number
FC38 1-1/2
Type
Inch, For Keyed Shaft Type
Outside Dia
3 3/4 in

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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, sized FC38 with a 3 3/4 in outside diameter. Designed for inch keyed shafts, this component (MPN FC38 1-1/2) provides a direct-fit solution for power transmission applications requiring a durable, precision-machined coupling hub.

Frequently Asked Questions

What is the BOSTON GEAR FC38 shaft coupler used for?

The BOSTON GEAR FC38 shaft coupler is a high-torque straight jaw coupling hub used to connect two rotating shafts in industrial power transmission systems. It accommodates misalignment and dampens vibration in applications like conveyors, pumps, and gearboxes, ensuring reliable torque transfer in heavy-duty machinery.

What are the specifications of the BOSTON GEAR FC38 1-1/2 coupling?

The BOSTON GEAR FC38 1-1/2 coupling has a 3 3/4 inch outside diameter and is sized for FC38 coupling size. It is designed for inch-dimension keyed shafts. The manufacturer part number is FC38 1-1/2, and it is a straight jaw coupling hub suitable for high-torque applications.

Where to buy BOSTON GEAR FC38 couplings worldwide?

You can source BOSTON GEAR FC38 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; we provide competitive pricing and reliable sourcing for this BOSTON GEAR component.

How to select the right BOSTON GEAR shaft coupler for my application?

To select the right BOSTON GEAR shaft coupler, match the coupling size (e.g., FC38) to your shaft diameter and keyway dimensions. Consider torque requirements, misalignment tolerance, and operating environment. For the FC38 1-1/2, ensure your shaft is inch-dimensioned and keyed. Consult BOSTON GEAR's technical data for load ratings.

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.
Not sure this is the right part? Photo-identify it→

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from BOSTON GEAR

View all BOSTON GEAR parts →
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

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first