We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

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

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

The BOSTON GEAR Oil Resistant Spider Insert is a high-torque straight jaw spider for FC45 coupling size, with a 4 1/2 in outside diameter and a power rating of 4.4 hp. This inch-sized insert is designed for use with…

SKU 3G-OTH-133835

Also listed as: XFCR 45 · XFCR-45

Brand
BOSTON GEAR
Item
Oil Resistant Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch
Category
High-Torque Straight Jaw Spiders
Available to Order
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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

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
XFCR45
Type
Inch, 4.4 hp
Outside Dia
4 1/2 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 Oil Resistant Spider Insert is a high-torque straight jaw spider for FC45 coupling size, with a 4 1/2 in outside diameter and a power rating of 4.4 hp. This inch-sized insert is designed for use with BOSTON GEAR couplings, offering oil resistance for industrial applications.

Frequently Asked Questions

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

The BOSTON GEAR Oil Resistant Spider Insert is used as a high-torque straight jaw spider in FC45 coupling size. It transmits power between shafts in industrial machinery, providing oil resistance for applications where lubricants or hydraulic fluids are present.

What are the specifications of the BOSTON GEAR XFCR45 spider insert?

The BOSTON GEAR XFCR45 spider insert has a 4 1/2 in outside diameter, a power rating of 4.4 hp, and is designed for FC45 coupling size. It is an inch-sized, oil-resistant straight jaw spider made by BOSTON GEAR for use with their couplings.

Where to buy BOSTON GEAR XFCR45 spider insert worldwide?

3G Electric supplies the BOSTON GEAR XFCR45 spider insert worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this oil-resistant spider insert for your coupling needs.

How to install a BOSTON GEAR straight jaw spider insert?

To install a BOSTON GEAR straight jaw spider insert, align the coupling halves and slide the spider into the jaw gaps. Ensure the insert seats evenly without forcing. Follow standard coupling alignment procedures and torque specs from the coupling manufacturer for proper fit and performance.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
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 Resistant Spider Insert: FC38 Coupling Size, 3 3/4 in Outside Dia, Inch, 2.5 hp (MPN XFCR38)
BOSTON GEAR
BOSTON GEAR Oil Resistant Spider Insert: FC38 Coupling Size, 3 3/4 in Outside Dia, Inch, 2.5 hp (MPN XFCR38)
BOSTON GEAR Oil Impregnated Spider Insert: FC38 Coupling Size, 3 3/4 in Outside Dia, Inch, 11.1 hp (MPN XFCBB38)
BOSTON GEAR
BOSTON GEAR Oil Impregnated Spider Insert: FC38 Coupling Size, 3 3/4 in Outside Dia, Inch, 11.1 hp (MPN XFCBB38)
BOSTON GEAR Polyurethane Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch, 7.5 hp (MPN XFCA45)
BOSTON GEAR
BOSTON GEAR Polyurethane Spider Insert: FC45 Coupling Size, 4 1/2 in Outside Dia, Inch, 7.5 hp (MPN XFCA45)
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: FC30 Coupling Size, 3 in Outside Dia, Inch, 5.10 hp (MPN XFCBB30)
BOSTON GEAR
BOSTON GEAR Oil Impregnated Spider Insert: FC30 Coupling Size, 3 in Outside Dia, Inch, 5.10 hp (MPN XFCBB30)

More from BOSTON GEAR

View all BOSTON GEAR parts
BOSTON GEAR Polyurethane Spider Insert: FC20 Coupling Size, 2 in Outside Dia, Inch, 0.7 hp (MPN XFCA20)
BOSTON GEAR
BOSTON GEAR Polyurethane Spider Insert: FC20 Coupling Size, 2 in Outside Dia, Inch, 0.7 hp (MPN XFCA20)
BOSTON GEAR Oil Resistant Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.19 hp (MPN XFCA12)
BOSTON GEAR
BOSTON GEAR Oil Resistant Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.19 hp (MPN XFCA12)
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: 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)
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 Resistant Spider Insert: FC15 Coupling Size, 1 1/2 in Outside Dia, Inch, 0.2 hp (MPN XFCR15)
BOSTON GEAR
BOSTON GEAR Oil Resistant Spider Insert: FC15 Coupling Size, 1 1/2 in Outside Dia, Inch, 0.2 hp (MPN XFCR15)
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 Polyurethane Spider Insert: FC38 Coupling Size, 3 3/4 in Outside Dia, Inch, 4.30 hp (MPN XFCA38)
BOSTON GEAR
BOSTON GEAR Polyurethane Spider Insert: FC38 Coupling Size, 3 3/4 in Outside Dia, Inch, 4.30 hp (MPN XFCA38)