Boston Gear
0 ratings
Boston Gear FC251 Shaft Coupling Half, FC25 Coupling Size, 1.000 inches Bore, 1-1932 Thru Bore Length, 2.250 inches Hub Diameter, 19.3 Max HP at 1750 RPM, 845 Max Torque LB-in, Steel
genuine image
Boston Gear FC251 Shaft Coupling Half, FC25 Coupling Size, 1.000 inches Bore, 1-1932 Thru Bore Length, 2.250 inches Hub Diameter, 19.3 Max HP at 1750 RPM, 845 Max Torque LB-in, Steel
Flexible couplings are used to link two rotating shafts that are not aligned in order to transmit the rotational power, known as torque, from one shaft to the other.
Boston Gear FC251 Shaft Coupling Half, FC25 Coupling Size, 1.000 inches Bore, 1-1932 Thru Bore Length, 2.250 inches Hub Diameter, 19.3 Max HP at 1750 RPM, 845 Max Torque LB-in, Steel
Item #: 18630939

Boston Gear FC251 Shaft Coupling Half, FC25 Coupling Size, 1.000 inches Bore, 1-1932 Thru Bore Length, 2.250 inches Hub Diameter, 19.3 Max HP at 1750

Item #: 18630939

BDT 30959

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store
Order now and get it around Wednesday, July 15
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Flexible couplings are used to link two rotating shafts that are not aligned in order to transmit the rotational power, known as torque, from one shaft to the other.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Torque Capacity
With a maximum torque of 845 LB-in, this coupling efficiently handles high-performance applications, ensuring reliable power transmission and operational efficiency in demanding environments.
Durable Steel Construction
Manufactured from high-quality steel, this coupling offers exceptional durability and resistance to wear, making it an ideal choice for prolonged service life in industrial settings.
Optimal Size Specifications
Featuring a precise 1-inch bore and a 2.250-inch hub diameter, this coupling is designed to fit seamlessly with compatible components, simplifying installation and improving system performance.

Product Details

Shop Boston Gear FC251 Shaft Coupling Half, FC25 Coupling Size, 1.000 inches Bore, 1-1932 Thru Bore Length, 2.250 inches Hub Diameter, 19.3 Max HP at 1750 RPM, 845 Max Torque LB-in, Steel online at a best price in Bangladesh. B00206UN4A
  • Hub half of 3-jaw shaft coupling for high torque and shock applications
  • No lubrication required, unaffected by oil, grease, dirt, or moisture
  • Made of steel for strength and durability
  • Keyway and set screw locking for secure attachment
  • 1 inch bore size
  • Used to transmit rotational power between misaligned shafts in various applications
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • Mechanical Engineers

    Ideal for engineers designing machinery requiring high torque and reliable coupling in various industrial applications.

  • Manufacturing Facilities

    Perfect for automation systems needing strong, durable couplings to enhance performance and reduce downtime.

  • Hobbyists

    Great for DIY enthusiasts working on projects that involve motors and machinery needing reliable coupling solutions.

Not Suitable For
  • High-Speed Applications

    Not suitable for applications exceeding 1750 RPM and require higher speeds due to potential failure risks.

  • Light-Duty Use

    Overbuilt for casual or light-duty applications; a simpler coupling may be more cost-effective and sufficient.

  • Non-Metal Requirements

    Not advisable for applications that require non-metal couplings due to steel's limitations in specific environments.

Product Description

Boston Gear FC251 Shaft Coupling Half, FC25 Coupling Size, 1.000 inches Bore, 1-1932 Thru Bore Length, 2.250 inches Hub Diameter, 19.3 Max HP at 1750 RPM, 845 Max Torque LB-in, Steel

About This Item

Introducing the Boston Gear FC251 Shaft Coupling Half - The Perfect Solution for Reliable Torque Transmission. Are you in need of a flexible coupling that can easily link two rotating shafts, even if they are not perfectly aligned? Look no further! Boston Gear offers the FC251 Shaft Coupling Half, designed to efficiently transmit rotational power, or torque, from one shaft to another. With its durable steel construction, this coupling is built to withstand the demands of various applications. Whether you're working with motor vehicles, conveyors, agricultural equipment, or aeronautics, the Boston Gear FC251 Shaft Coupling Half is a reliable choice. One key feature of this coupling is its flexibility. The middle assembly of the coupling allows for the accommodation of misalignments between the shafts, whether they are parallel or angular.

By absorbing these misalignments, the coupling helps minimize stresses, loads, vibrations, and other forces that can affect the transmission of power. The FC251 coupling is specifically designed for a 1.000 inch bore size and 1-1932 inch thru bore length, making it a perfect fit for your application. Its 2.250 inch hub diameter ensures a secure connection, while its impressive 19.3 max horsepower rating at 1750 RPM and 845 max torque capacity in LB-in guarantee reliable performance. As a trusted manufacturer, Boston Gear has been providing top-quality power and fluid transmission components since 1877. Their commitment to excellence is reflected in their adherence to the ISO 9001:2008 standard, ensuring that you receive a product that meets the highest industry standards. Upgrade your torque transmission system with the Boston Gear FC251 Shaft Coupling Half.

Explore the versatility and reliability of this coupling for yourself and experience the difference it can make in your applications.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the purpose of the FC251 Shaft Coupling Half?

    Answer: The FC251 Shaft Coupling Half is designed to connect two shafts efficiently while allowing for some misalignment. This coupling is particularly useful in mechanical applications where torque needs to be transmitted between rotating components. It ensures smooth power transfer and minimizes wear on machinery, making it ideal for use in motors, pumps, and other rotational equipment.
  • Question: What materials is the FC251 Shaft Coupling Half made from?

    Answer: The FC251 Shaft Coupling Half is typically made from durable materials such as aluminum or steel, which offer high strength and resistance to wear. These materials ensure that the coupling can withstand significant operational stresses while maintaining its integrity over time. This robustness is crucial in applications that require reliable connections under varying loads.
  • Question: How do you determine the right size of shaft coupling to use?

    Answer: Determining the right size of a shaft coupling involves considering the bore diameter, length, and hub diameter. For the FC251 model, you need a bore size of 1.000 inches and a hub diameter of 2.250 inches. Additionally, understanding the torque requirements and alignment of the shafts is essential to ensure optimal performance in your specific application.
  • Question: What are the benefits of using the FC251 Shaft Coupling Half?

    Answer: The benefits of using the FC251 Shaft Coupling Half include enhanced power transmission efficiency, reduced wear and tear on connected components, and improved alignment capabilities. This coupling helps prevent vibrations and misalignments, resulting in a smoother operation that prolongs the lifespan of mechanical systems. It’s particularly beneficial in high-torque applications where consistent performance is critical.
  • Question: What applications commonly use the FC251 Shaft Coupling Half?

    Answer: The FC251 Shaft Coupling Half is used in various applications such as conveyor systems, pump drives, and electric motors. It is ideal for connecting motor shafts to driven equipment in industrial settings. By effectively managing torque and supporting alignment, this coupling is a key component in ensuring the reliability and efficiency of mechanical operations in many engineering scenarios.
  • Question: What is the maximum horsepower the FC251 Shaft Coupling Half can handle?

    Answer: The FC251 Shaft Coupling Half can handle a maximum horsepower of 19.3 at 1750 RPM. This power rating allows it to be used in moderately demanding applications, providing a safe operating range for your machinery. Selecting a coupling that matches or exceeds your power requirements is vital to ensure operational safety and efficiency.
  • Question: Can the FC251 Shaft Coupling Half accommodate misalignment?

    Answer: Yes, the FC251 Shaft Coupling Half is designed to tolerate a certain degree of misalignment. This quality is crucial, as it allows for flexibility in installation without compromising the performance or integrity of the mechanical system. This capability is particularly beneficial in applications where exact alignment between shafts is challenging due to installation conditions.
  • Question: What are the dimensions of the FC251 Shaft Coupling Half?

    Answer: The dimensions of the FC251 Shaft Coupling Half include a bore size of 1.000 inches, a thru bore length of 1.1932 inches, and a hub diameter of 2.250 inches. Understanding these dimensions is essential for ensuring compatibility with your existing shafts and equipment. Proper fitment is crucial for maximizing the coupling’s effectiveness in transmitting torque.
  • Question: Where can I buy the FC251 Shaft Coupling Half?

    Answer: You can purchase the FC251 Shaft Coupling Half on Ubuy, one of the leading e-commerce platforms that offer a wide variety of industrial components. Ubuy provides a streamlined shopping experience, ensuring you can easily find the necessary specifications for this coupling and have it delivered directly to your location in Bangladesh.
  • Question: Is installation of the FC251 Shaft Coupling Half complicated?

    Answer: The installation of the FC251 Shaft Coupling Half is straightforward, involving proper alignment between the two shafts and securing the coupling with bolts or set screws. It’s essential to follow manufacturer instructions closely to ensure a tight connection and to maintain functionality. Timely installation can optimize machine performance and extend the life of components.

Boston Gear Set Screw Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0
1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Pros

  • High durability and strength
  • Easy to install
  • Well-suited for high torque
  • Good performance at various RPMs
  • Excellent customer support

Cons

  • May require specific tools for installation.

Platform Trust & Buyer Confidence

trustpilot logo
4.3/5 9,000 + reviews
Read reviews
MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer

“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
LM
Leila
Verified buyer

“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

BDT 30959

Order now and get it around Wednesday, July 15

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Flexible couplings consist of two hubs and a middle assembly.
  • Flexible couplings accommodate the misalignment of the two shafts.
  • Shaft misalignments cause complications to transmitting rotational power which vary from one type of misalignment to another.
  • Flexible couplings are used in a broad range of applications.
  • Boston Gear manufactures various power and fluid transmission components.
  • Boston Gear meets International Organization for Standardization (ISO) standard 9001:2008 standard.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.