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Kop-Flex 4 1/2 HG SB FF (HG2275089) Series H gear coupling, size 4.5, standard bore and finished bore flanged configuration. Designed for drop-in replacement on competitor gear coupling sizes 1-7, this coupling provides reliable power transmission in industrial applications. The Series H sleeve bolts directly to existing competitor hubs, simplifying retrofits and reducing downtime.

Name: Kop-Flex 4 1/2 HG SB FF (HG2275089) Series H gear coupling, size 4.5, standard bore and finished bore flanged configuration. Designed for drop-in repl
Brand: KOP-FLEX
Availability: Discontinued

MODEL HG2275089

BRAND

KOP-FLEX

SKU

96698199

UOM

each

UPC

662384007411

Contact supplier for technical support on: 800-626-2120

OBSOLETE

Please call 888-671-2883 for Replacement info

Typically Ships in: 1 day

Returnable: Yes

Bolt Circle

11.75

Bolt Type

Shrouded Bolt

Bore Size Max

6.75

Bore Type

Rough Bore

Compatible Bore Size [Min] (in)

Compatible Bore Size [Min] (mm)

76.2

Compatible Bore Size Flex Hub [Min] (in)

Configuration

Full Flex

Coupling Size

4.5

Coupling Type

Gear Coupling

Distance Between Shaft Ends (mm)

7.925

Fastener Quantity

Fastener Size

0.625 x 1.625

Hub Diameter (in)

9.25

Includes

Hub, Sleeve & Fasteners

Length Through Bore (in)

5.31

Length Through Bore (mm)

134.87

Material

Medium Carbon Steel

Max Bore w/standard key for Flex Hub

6.75

Measurement System

Imperial

13.62

Overall Length (in)

10.93

Rating HP @ 100 RPM

589.77

Sleeve Type

Flanged

Speed Max (rpm)

3200

Tooth Profile

Crown faced, Involute Tooth

Torque [Max] (in-lb)

743400

Torque Rating (in-lb)

371700

# Shaft Couplings and Collars The **Kop-Flex 4 1/2 HG SB FF** coupling is an advanced mechanical power transmission solution designed to provide exceptional flexibility and performance in demanding industrial applications. This coupling is engineered to accommodate misalignment and reduce vibration, ensuring optimal operation in heavy-duty environments. ## Key Features • **High Durability Design**: Constructed from premium materials to withstand harsh operational conditions, ensuring longevity and reliability. • **Flexible Performance**: Engineered to handle angular, parallel, and axial misalignments, minimizing wear on connected components. • **Compact Configuration**: Features a space-efficient design, allowing for easy installation in constrained environments. • **Versatile Compatibility**: Suitable for various applications across industries, including oil and gas, metals, and mining, enhancing operational versatility. • **Enhanced Torque Transmission**: Provides efficient power transmission with reduced backlash, improving overall system performance. ## Applications • **Turbomachinery**: Ideal for use in turbine applications where precise alignment and reliable torque transfer are critical. • **Heavy Industry**: Perfect for mining and metal processing equipment, where robustness and resilience are paramount. • **Custom Installations**: Can be tailored for unique applications, providing customized solutions to meet specific operational challenges. ## Benefits • **Increased Efficiency**: Reduces energy loss through improved torque transmission, leading to lower operational costs. • **Extended Equipment Life**: Minimizes wear and tear on machinery by accommodating misalignment, resulting in reduced maintenance needs. • **Reliable Operation**: Built to meet rigorous industry standards, ensuring consistent performance even in the most demanding conditions. --- *Product information compiled with AI assistance for reference purposes.*