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BOSTON GEAR Oil Impregnated Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia - High-Torque Straight Jaw Spiders
BOSTON GEARHigh-Torque Straight Jaw Spiders

BOSTON GEAR Oil Impregnated Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia

The BOSTON GEAR Oil Impregnated Spider Insert is a high-torque straight jaw spider for FC45 coupling size, with a 4 1/2 in outside diameter and a 17.5 hp rating. This inch-sized insert is manufactured by BOSTON GEAR…

SKU 3G-OTH-133831

Also listed as: XFCBB 45 · XFCBB-45

Brand
BOSTON GEAR
Item
Oil Impregnated Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia
Category
High-Torque Straight Jaw Spiders
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

BOSTON GEAR
Manufacturer Part Number
XFCBB45
Type
Inch, 17.5 hp
Outside Dia
4 1/2 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 FC45 coupling size, with a 4 1/2 in outside diameter and a 17.5 hp rating. This inch-sized insert is manufactured by BOSTON GEAR under MPN XFCBB45.

Frequently Asked Questions

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

The BOSTON GEAR Oil Impregnated Spider Insert is used as a flexible coupling component in high-torque power transmission systems. It connects shafts in industrial machinery, absorbing shock and misalignment while transmitting up to 17.5 hp. Common applications include pumps, compressors, and conveyors.

What are the specifications of the BOSTON GEAR XFCBB45 spider insert?

The BOSTON GEAR XFCBB45 is an oil-impregnated spider insert for FC45 coupling size. It has a 4 1/2 in outside diameter, a 17.5 hp power rating, and is inch-sized. It is a high-torque straight jaw spider manufactured by BOSTON GEAR under MPN XFCBB45.

Where to buy BOSTON GEAR spider inserts worldwide?

You can source the BOSTON GEAR XFCBB45 spider insert worldwide through 3G Electric, a global industrial equipment distributor since 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

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

To select the correct BOSTON GEAR spider insert, match the coupling size (e.g., FC45), outside diameter (4 1/2 in), and power rating (17.5 hp) to your application. Ensure the jaw type (straight) and inch sizing align with your shaft dimensions. Consult the manufacturer's catalog for torque and misalignment limits.

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)
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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: FC15 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.79 hp (MPN XFCBB15)
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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: FC30 Coupling Size, 3 in Outside Dia, Inch, 5.10 hp (MPN XFCBB30)
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BOSTON GEAR Oil Impregnated Spider Insert: FC30 Coupling Size, 3 in Outside Dia, Inch, 5.10 hp (MPN XFCBB30)
BOSTON GEAR Oil Resistant Spider Insert: FC25 Coupling Size, 2 1/2 in Outside Dia, Inch, 0.71 hp (MPN XFCR25)
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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)
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BOSTON GEAR Oil Resistant Spider Insert: FC20 Coupling Size, 2 in Outside Dia, Inch, 0.4 hp, Rubber (MPN XFCR20)
BOSTON GEAR Oil Impregnated Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.32 hp (MPN XFCBB12)
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BOSTON GEAR Oil Impregnated Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.32 hp (MPN XFCBB12)

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BOSTON GEAR Oil Impregnated Spider Insert: FC20 Coupling Size, 2 in Outside Dia, Inch, 1.6 hp (MPN XFCBB20)
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