TB Wood's 12S338 Flange Mounting Hub 12S Sprockets

Description:

The TB Wood's 12S338 Flange Mounting Hub is used in industrial power transmission systems as a Sure-Flex® sleeve coupling flange for connecting rotating shafts and transmitting torque while accommodating shaft misalignment. Commonly installed in pumps, compressors, conveyors, fans, blowers, mixers, and heavy-duty industrial machinery. Maintenance teams, OEMs, and system integrators use this flange mounting hub for coupling replacement, drive system maintenance, machinery retrofits, and new equipment installations.

Applications:

The TB Wood's 12S338 Flange Mounting Hub is commonly used in industrial automation environments including conveyor systems, pump and compressor drives, material handling equipment, mining machinery, HVAC systems, manufacturing production lines, and process industries where reliable torque transmission, vibration damping, and flexible shaft alignment are essential for continuous operation.

Technical Specifications:

• Manufacturer: TB Wood's (Regal Rexnord)
• Model / Part Number: 12S338
• Product Type: Flange Mounting Hub (Sure-Flex® Sleeve Coupling Flange)
• Series: Sure-Flex® Type S
• Coupling Size: 12
• Bore Diameter: 3-3/8 in.
• Bore Type: Bored-to-Size with Keyway
• Material: High-Strength Cast Iron
• Outside Diameter: 10.0 in.
• Hub Diameter: 5-3/4 in.
• Length Through Bore: 4.0 in.
• Hub Length: 1-9/32 in.
• Keyway Size: 7/8 × 7/16 in.
• Maximum Operating Speed: 2800 RPM
• Mounting: Shaft Mount with Setscrew
• Setscrew Size: 3/4-10 UNC × 3/4 in.
• Application Environment: Industrial power transmission systems

Common Replacements:

• TB Wood's 12S338
• Lovejoy 12S338
• Martin 12S338