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BOSTON GEAR High-Torque Straight Jaw Spider, FC38, 3 3/4 in OD, 11.1 hp, XFCBB38 - High-Torque Straight Jaw Spiders
BOSTON GEARHigh-Torque Straight Jaw Spiders

BOSTON GEAR High-Torque Straight Jaw Spider, FC38, 3 3/4 in OD, 11.1 hp, XFCBB38

The BOSTON GEAR Oil Impregnated Spider Insert is a high-torque straight jaw spider for FC38 coupling size, with a 3 3/4 in outside diameter and 11.1 hp rating. This inch-size insert, model XFCBB38, is designed for…

SKU 3G-OTH-133830

Also listed as: XFCBB 38 · XFCBB-38

Brand
BOSTON GEAR
Item
High-Torque Straight Jaw Spider, FC38, 3 3/4 in OD, 11.1 hp, XFCBB38
Category
High-Torque Straight Jaw Spiders
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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
XFCBB38
Type
Inch, 11.1 hp
Outside Dia
3 3/4 in

Technical Documents

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

Product Description

The BOSTON GEAR Oil Impregnated Spider Insert is a high-torque straight jaw spider for FC38 coupling size, with a 3 3/4 in outside diameter and 11.1 hp rating. This inch-size insert, model XFCBB38, is designed for use with BOSTON GEAR couplings.

Frequently Asked Questions

What is the BOSTON GEAR Oil Impregnated Spider Insert used for?

The BOSTON GEAR Oil Impregnated Spider Insert is a high-torque straight jaw spider used in industrial power transmission systems. It fits FC38 coupling sizes to connect shafts, dampen vibration, and transmit torque up to 11.1 hp. Common applications include pumps, compressors, and conveyors where misalignment compensation is needed.

What are the specifications of the BOSTON GEAR XFCBB38 spider insert?

The BOSTON GEAR XFCBB38 spider insert has a 3 3/4 in outside diameter, an FC38 coupling size, and a power rating of 11.1 hp. It is an inch-size, oil-impregnated straight jaw spider designed for high-torque applications. The manufacturer part number is XFCBB38, and it is made by BOSTON GEAR.

Where to buy BOSTON GEAR spider inserts worldwide?

You can source BOSTON GEAR spider inserts 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 times on the XFCBB38 or other BOSTON GEAR coupling components.

How to select the right BOSTON GEAR spider insert for a coupling?

To select the correct BOSTON GEAR spider insert, match the coupling size (e.g., FC38), outside diameter (3 3/4 in), and power rating (11.1 hp) to your application. Ensure the insert material—oil-impregnated for this model—suits the operating environment. Always verify shaft sizes and torque requirements against the BOSTON GEAR catalog.

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

BOSTON GEAR Products

3G Electric supplies BOSTON GEAR high-torque straight jaw spiders. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
BOSTON GEAR Oil Impregnated Spider Insert: FC25 Coupling Size, 2 1/2 in Outside Dia, Inch, 2.9 hp (MPN XFCBB25)
BOSTON GEAR
BOSTON GEAR Oil Impregnated Spider Insert: FC25 Coupling Size, 2 1/2 in Outside Dia, Inch, 2.9 hp (MPN XFCBB25)
BOSTON GEAR Oil Impregnated Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch, 17.5 hp (MPN XFCBB45)
BOSTON GEAR
BOSTON GEAR Oil Impregnated Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch, 17.5 hp (MPN XFCBB45)
BOSTON GEAR Oil Impregnated Spider Insert: FC15 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.79 hp (MPN XFCBB15)
BOSTON GEAR
BOSTON GEAR Oil Impregnated Spider Insert: FC15 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.79 hp (MPN XFCBB15)
BOSTON GEAR Oil Impregnated Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.32 hp (MPN XFCBB12)
BOSTON GEAR
BOSTON GEAR Oil Impregnated Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.32 hp (MPN XFCBB12)
BOSTON GEAR Oil Resistant Spider Insert: FC25 Coupling Size, 2 1/2 in Outside Dia, Inch, 0.71 hp (MPN XFCR25)
BOSTON GEAR
BOSTON GEAR Oil Resistant Spider Insert: FC25 Coupling Size, 2 1/2 in Outside Dia, Inch, 0.71 hp (MPN XFCR25)
BOSTON GEAR Oil Resistant Spider Insert: FC20 Coupling Size, 2 in Outside Dia, Inch, 0.4 hp, Rubber (MPN XFCR20)
BOSTON GEAR
BOSTON GEAR Oil Resistant Spider Insert: FC20 Coupling Size, 2 in Outside Dia, Inch, 0.4 hp, Rubber (MPN XFCR20)

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