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

BOSTON GEAR High-Torque Straight Jaw Spider

The BOSTON GEAR Oil Resistant Spider Insert is a high-torque straight jaw spider for FC20 coupling size, with a 2 in outside diameter and 0.4 hp rating. This rubber insert is designed for inch-sized couplings and is…

SKU 3G-OTH-133823

Also listed as: XFCR 20 · XFCR-20

Brand
BOSTON GEAR
Item
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
XFCR20
Type
Inch, 0.4 hp, Rubber
Outside Dia
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 FC20 coupling size, with a 2 in outside diameter and 0.4 hp rating. This rubber insert is designed for inch-sized couplings and is manufactured by BOSTON GEAR under MPN XFCR20.

Frequently Asked Questions

What is the BOSTON GEAR Oil Resistant Spider Insert XFCR20 used for?

The BOSTON GEAR XFCR20 is a high-torque straight jaw spider insert used in FC20 coupling sizes to transmit torque between shafts while absorbing shock and compensating for minor misalignment. It is suitable for industrial power transmission applications requiring oil resistance, such as pumps, gearboxes, and conveyors.

What are the specifications of the BOSTON GEAR XFCR20 spider insert?

The BOSTON GEAR XFCR20 spider insert has a 2 in outside diameter, is rated for 0.4 hp, and fits FC20 coupling size. It is made of oil-resistant rubber and is designed for inch-sized couplings. This straight jaw spider is manufactured by BOSTON GEAR under MPN XFCR20.

Where to buy BOSTON GEAR XFCR20 spider insert worldwide?

3G Electric supplies the BOSTON GEAR XFCR20 spider insert to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this oil-resistant rubber coupling insert.

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., FC20), outside diameter (2 in), and horsepower rating (0.4 hp) to your application. Ensure the insert material—such as oil-resistant rubber—suits the operating environment. Verify shaft dimensions and alignment requirements per manufacturer guidelines.

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
Inch-sized straight jaw spider for FC20 coupling size. Outside diameter 2 in, power rating 1.6 hp. Oil-impregnated construction dampens vibration and compensates for minor shaft misalignment in industrial power transmission applications
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Inch-sized straight jaw spider for FC20 coupling size. Outside diameter 2 in, power rating 1.6 hp. Oil-impregnated construction dampens vibration and compensates for minor shaft misalignment in industrial power transmission applications
Inch-sized high-torque straight jaw spider for FC45 coupling size. Outside diameter 4 1/2 in, power rating 4.4 hp. Used to transmit torque between shafts in industrial power transmission applications
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Inch-sized high-torque straight jaw spider for FC45 coupling size. Outside diameter 4 1/2 in, power rating 4.4 hp. Used to transmit torque between shafts in industrial power transmission applications
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
BOSTON GEAR
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-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
BOSTON GEAR
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
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
BOSTON GEAR
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
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
BOSTON GEAR
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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Polyurethane spider insert for high-torque straight jaw couplings. Fits FC20 coupling size with 2-inch outside diameter and 0.7 hp rating. Transmits torque while dampening vibration and compensating for minor misalignment in power transmission systems
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Polyurethane spider insert for high-torque straight jaw couplings. Fits FC20 coupling size with 2-inch outside diameter and 0.7 hp rating. Transmits torque while dampening vibration and compensating for minor misalignment in power transmission systems
Inch-sized straight jaw spider for FC12 coupling size. Outside diameter 1 1/4 in, power rating 0.19 hp. Transmits torque between shafts while dampening vibration and compensating for minor misalignment in industrial machinery, pumps, and gearboxes
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Inch-sized straight jaw spider for FC12 coupling size. Outside diameter 1 1/4 in, power rating 0.19 hp. Transmits torque between shafts while dampening vibration and compensating for minor misalignment in industrial machinery, pumps, and gearboxes
Inch-sized high-torque straight jaw spider for FC12 coupling applications. Outside diameter 1 1/4 in, rated 0.32 hp. Used to transmit torque between shafts while dampening vibration and compensating for minor misalignment in industrial power transmission systems
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Inch-sized high-torque straight jaw spider for FC12 coupling applications. Outside diameter 1 1/4 in, rated 0.32 hp. Used to transmit torque between shafts while dampening vibration and compensating for minor misalignment in industrial power transmission systems
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 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
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-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
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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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
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