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BOSTON GEAR XFCR45 High-Torque Straight Jaw Spider - High-Torque Straight Jaw Spiders
BOSTON GEARHigh-Torque Straight Jaw Spiders

BOSTON GEAR XFCR45 High-Torque Straight Jaw Spider

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
XFCR45 High-Torque Straight Jaw Spider
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
XFCR45
Type
Inch, 4.4 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 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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
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)
Inch-dimensioned high-torque straight jaw spider for FC38 coupling size. Outside diameter 3 3/4 in, rated 2.5 hp. Used in power transmission systems to connect shafts, absorb shock, and compensate for minor misalignment in industrial drives, pumps, and gearboxes
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Inch-dimensioned high-torque straight jaw spider for FC38 coupling size. Outside diameter 3 3/4 in, rated 2.5 hp. Used in power transmission systems to connect shafts, absorb shock, and compensate for minor misalignment in industrial drives, pumps, and gearboxes
Inch-size straight jaw spider for FC38 coupling. Oil-impregnated construction. 3 3/4 in outside diameter, rated 11.1 hp. Used in power transmission systems to connect shafts, dampen vibration, and compensate for misalignment in pumps, compressors, and conveyors
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Inch-size straight jaw spider for FC38 coupling. Oil-impregnated construction. 3 3/4 in outside diameter, rated 11.1 hp. Used in power transmission systems to connect shafts, dampen vibration, and compensate for misalignment in pumps, compressors, and conveyors
Inch-dimensioned polyurethane spider insert for FC45 coupling size. Outside diameter 4 1/2 in, rated 7.5 hp. Used in power transmission to connect shafts in pumps, compressors, and conveyors, absorbing vibration and accommodating misalignment
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Inch-dimensioned polyurethane spider insert for FC45 coupling size. Outside diameter 4 1/2 in, rated 7.5 hp. Used in power transmission to connect shafts in pumps, compressors, and conveyors, absorbing vibration and accommodating misalignment
BOSTON GEAR Oil Resistant Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.19 hp (MPN XFCA12)
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BOSTON GEAR Oil Resistant Spider Insert: FC12 Coupling Size, 1 1/4 in Outside Dia, Inch, 0.19 hp (MPN XFCA12)
Inch-dimensioned spider insert for FC30 coupling size. 3 in outside diameter, rated for 5.10 hp. Oil-impregnated construction dampens vibration and compensates for minor misalignment in power transmission systems
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Inch-dimensioned spider insert for FC30 coupling size. 3 in outside diameter, rated for 5.10 hp. Oil-impregnated construction dampens vibration and compensates for minor misalignment in power transmission systems

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Inch-dimensioned high-torque straight jaw spider with 2 1/2 in outside diameter and 2.9 hp rating. Designed for FC25 coupling size, used in industrial power transmission to connect shafts while dampening vibration and accommodating minor misalignment
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Inch-dimensioned spider insert for FC15 coupling size. Outside diameter 1 1/2 in, rated 0.2 hp. Straight jaw design for torque transmission and misalignment dampening in industrial drives such as pumps, conveyors, and mixers
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Inch-sized straight jaw spider insert for FC25 couplings. Outside diameter 2 1/2 in, power rating 0.71 hp. Oil-resistant material suitable for industrial power transmission applications such as pumps, conveyors, and mixers
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This polyurethane spider insert serves as the flexible element in high-torque straight jaw couplings. It transmits torque while dampening vibration and compensating for minor misalignment in industrial power transmission systems. Suitable for use with FC38 coupling size, it has a 3 3/4 in outside diameter and a power rating of 4.30 hp
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This polyurethane spider insert serves as the flexible element in high-torque straight jaw couplings. It transmits torque while dampening vibration and compensating for minor misalignment in industrial power transmission systems. Suitable for use with FC38 coupling size, it has a 3 3/4 in outside diameter and a power rating of 4.30 hp
This polyurethane spider insert is designed for use in high-torque straight jaw couplings of FC15 size. With a 1 1/2 in outside diameter and a power rating of 0.37 hp, it transmits torque while dampening vibration and compensating for minor misalignment in power transmission systems such as pumps, gearboxes, and conveyors
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This polyurethane spider insert is designed for use in high-torque straight jaw couplings of FC15 size. With a 1 1/2 in outside diameter and a power rating of 0.37 hp, it transmits torque while dampening vibration and compensating for minor misalignment in power transmission systems such as pumps, gearboxes, and conveyors
Oil-impregnated spider insert for FC15 straight jaw couplings. Inch-sized with 1 1/4 in outside diameter and 0.79 hp rating. Used as a flexible element in power transmission systems to dampen vibration and accommodate minor shaft misalignment
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Oil-impregnated spider insert for FC15 straight jaw couplings. Inch-sized with 1 1/4 in outside diameter and 0.79 hp rating. Used as a flexible element in power transmission systems to dampen vibration and accommodate minor shaft misalignment
Oil-impregnated spider insert for FC45 coupling size. Inch type with 4 1/2 in outside diameter and 17.5 hp rating. Used as a flexible coupling component in power transmission systems to connect shafts and absorb shock and misalignment
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Inch-sized rubber spider insert for FC30 coupling size. Outside diameter 3 in, power rating 1.30 hp. Used in power transmission applications to connect shafts and absorb shock in pumps, gearboxes, and similar machinery