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BOSTON GEAR XFCA12 High-Torque Straight Jaw Spider - High-Torque Straight Jaw Spiders
BOSTON GEARHigh-Torque Straight Jaw Spiders

BOSTON GEAR XFCA12 High-Torque Straight Jaw Spider

The BOSTON GEAR Oil Resistant Spider Insert is a high-torque straight jaw spider for FC12 coupling size, with a 1 1/4 in outside diameter and a power rating of 0.19 hp (MPN XFCA12). This inch-sized insert is designed…

SKU 3G-OTH-133818

Also listed as: XFCA 12 · XFCA-12

Brand
BOSTON GEAR
Item
XFCA12 High-Torque Straight Jaw Spider
Part Number
XFCA12
Category
High-Torque Straight Jaw Spiders
Available to Order
Also known as:XFCA12BOSTON GEAR
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Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
Warning appliesProp 65 warning
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

BOSTON GEAR
Manufacturer Part Number
XFCA12
Type
Inch, 0.19 hp
Color
Tan
UNSPSC
31163003
Fail Safe
Yes
Standards
ISO 9001
Outside Dia
1 1/4 in
Spider Type
Solid Center Spider
Catalog Page
123
Rated Torque
125 in-lb
Spider Width
0.63 in
Coupling Size
FC12
Maximum Speed
3,450 RPM
Zero Backlash
No
Spider Material
Polyurethane
Horsepower @ RPM
2.0 hp @ 1150 RPM
Outside Diameter
1-1/4 in
Country of Origin
France (subject to change)
Angular Misalignment
1 °
Horsepower @ 100 RPM
0.19 hp
For Misalignment Type
Angular; Parallel
Parallel Misalignment
0.002 in
Resistance Properties
Chemical Resistant; Oil Resistant
System of Measurement
Inch
Maximum Operating Temperature
200 °F
Minimum Operating Temperature
-32 °F
Compatible Hub Manufacturer Part Number
FC12

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 FC12 coupling size, with a 1 1/4 in outside diameter and a power rating of 0.19 hp (MPN XFCA12). This inch-sized insert is designed for use with BOSTON GEAR couplings.

Frequently Asked Questions

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

The BOSTON GEAR Oil Resistant Spider Insert is a high-torque straight jaw spider used in FC12 coupling size applications. It transmits power between shafts while dampening vibration and compensating for minor misalignment, commonly in industrial machinery, pumps, and gearboxes.

What are the specifications of the BOSTON GEAR XFCA12 spider insert?

The BOSTON GEAR XFCA12 spider insert has a 1 1/4 in outside diameter, a power rating of 0.19 hp, and is designed for FC12 coupling size. It is an inch-sized, oil-resistant straight jaw spider suitable for use with BOSTON GEAR couplings.

Where to buy BOSTON GEAR spider inserts worldwide?

3G Electric supplies BOSTON GEAR spider inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order the XFCA12 or other coupling components for your application.

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., FC12), outside diameter (1 1/4 in), and power rating (0.19 hp) to your application. Ensure the insert material is oil-resistant if operating in lubricated environments. Consult coupling manufacturer guidelines for fit.

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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