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BOSTON GEAR XFCR38 High-Torque Straight Jaw Spider, 3 3/4 in OD, 2.5 hp - High-Torque Straight Jaw Spiders
BOSTON GEARHigh-Torque Straight Jaw Spiders

BOSTON GEAR XFCR38 High-Torque Straight Jaw Spider, 3 3/4 in OD, 2.5 hp

The BOSTON GEAR Oil Resistant Spider Insert is a high-torque straight jaw spider for FC38 coupling size, with a 3 3/4 in outside diameter and 2.5 hp rating (MPN XFCR38). This inch-dimensioned insert is designed for…

SKU 3G-OTH-133834

Also listed as: XFCR 38 · XFCR-38

Brand
BOSTON GEAR
Item
XFCR38 High-Torque Straight Jaw Spider, 3 3/4 in OD, 2.5 hp
Part Number
XFCR38
Category
High-Torque Straight Jaw Spiders
Available to Order
Also known as:XFCR38BOSTON GEAR
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Technical Specifications

BOSTON GEAR
Manufacturer Part Number
XFCR38
Type
Inch, 2.5 hp
Outside Dia
3 3/4 in

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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 FC38 coupling size, with a 3 3/4 in outside diameter and 2.5 hp rating (MPN XFCR38). This inch-dimensioned insert is designed for use with BOSTON GEAR couplings.

Frequently Asked Questions

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

The BOSTON GEAR Oil Resistant Spider Insert is a high-torque straight jaw spider used in FC38 coupling applications. It transmits power between shafts while absorbing shock and compensating for minor misalignment. Common in industrial drives, pumps, and gearboxes where oil resistance is required.

What are the specifications of the BOSTON GEAR Oil Resistant Spider Insert?

The BOSTON GEAR Oil Resistant Spider Insert (MPN XFCR38) has a 3 3/4 in outside diameter, a 2.5 hp rating, and is designed for FC38 coupling size. It is an inch-dimensioned, oil-resistant spider made for use with BOSTON GEAR couplings.

Where to buy the BOSTON GEAR Oil Resistant Spider Insert worldwide?

3G Electric supplies the BOSTON GEAR Oil Resistant Spider Insert worldwide. As a global industrial equipment distributor, 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., FC38), outside diameter (3 3/4 in), and horsepower rating (2.5 hp). Ensure the insert material suits the operating environment—oil-resistant for lubricated applications. Always verify shaft dimensions and alignment tolerances per manufacturer guidelines.

Used in

Common applications for BOSTON GEAR
Conveyor systems — Boston Gear FC38 polyurethane spider insert (XFCA38) for torque transmission and misalignment compensation.
Pump drives — Boston Gear FC15 oil-impregnated spider insert (XFCBB15) to dampen vibration in continuous-duty pump applications.
Mixers and agitators — Boston Gear speed reducers with cast iron housings for speed reduction and torque multiplication.
Packaging machinery — Boston Gear FC12 synthetic rubber spider insert (XFCR12) for shock absorption in start-stop cycles.
Fans and blowers — Boston Gear FC45 oil-impregnated spider insert (XFCBB45) for high-torque power transmission.
Material handling — Boston Gear shaft-mounted speed reducers for conveyor and bulk handling drive systems.
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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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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
BOSTON GEAR
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
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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