Tb Woods TB-WE3H138 Tire Coupling Hub 1.375 in Bore

Product Description

The TB WOODS TB-WE3H138 is a flanged shaft hub designed for use with WE3 series tire coupling assemblies. It features a finished bore with keyway and set screw, accepting a 1.375-inch shaft. The hub outside diameter measures 2.32 inches with a length through bore of 1.5 inches. Constructed from low carbon steel with a cast iron hub body, this component is rated for up to 0.58 horsepower at 100 RPM and a maximum speed of 7,500 RPM. Licensed mechanics and millwrights install this hub as part of a matched tire coupling system to transmit torque between shafts while absorbing vibration and minor misalignment.

This tire coupling hub is suited for light- to medium-duty power transmission applications in industrial and commercial equipment. It mounts directly to a compatible shaft and joins with a matched tire coupling element and a corresponding hub to complete the flexible coupling assembly. The WE3 size code indicates the coupling series, so the mating tire element and opposing hub must match this designation. Common applications include pumps, compressors, fans, and conveyor drives where flexible shaft coupling is required.

Key Features

• Finished bore with keyway and set screw for secure shaft engagement
• 1.375-inch bore diameter fits standard keyed shaft configurations
• Flanged hub design mates with WE3 series tire coupling elements
• Rated to 7,500 RPM maximum speed
• Low carbon steel and cast iron construction for durability in industrial environments
• 0.58 horsepower capacity at 100 RPM

Compatibility

Designed as an OEM-style replacement or service component for WE3 series tire coupling assemblies requiring a flanged shaft hub with a 1.375-inch finished bore.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. Ensure all drive equipment is fully de-energized and locked out before removing or installing coupling components. The shaft and bore should be clean and free of burrs before pressing or sliding the hub into position. Align the coupling assembly within manufacturer-recommended tolerances to avoid premature wear on the tire element.

Technical Specifications

• Bore Diameter: 1.375 inches
• Bore Type: Finished with Keyway and Set Screw
• Coupling Size Code: WE3
• Hub Outside Diameter: 2.32 inches
• Length Through Bore: 1.5 inches
• Maximum RPM: 7,500 RPM
• Horsepower at 100 RPM: 0.58 hp
• Hub Type: Flanged Shaft Hub
• Hub Material: Cast Iron
• Material: Low Carbon Steel
• Weight: 0.70 pounds

Standard Information

• Brand: TB WOODS
• Manufacturer Part Number: TB-WE3H138