TB Wood's SF X 2 1 4 Flexible Shaft Coupling

Description:

The TB Wood's SF X 2-1/4 Flexible Shaft Coupling is used in industrial power transmission systems to securely connect rotating shafts while transmitting torque and accommodating shaft misalignment. Commonly installed in pumps, compressors, conveyors, fans, blowers, mixers, and other heavy-duty industrial machinery. Maintenance teams, OEMs, and system integrators use this flexible shaft coupling bushing for equipment replacement, drive system maintenance, machinery retrofits, and new power transmission installations.

Applications:

The TB Wood's SF X 2-1/4 Flexible Shaft Coupling is commonly used in industrial automation environments including conveyor systems, pump and compressor drives, mining equipment, material handling machinery, HVAC systems, and manufacturing production lines where reliable torque transmission, vibration damping, and shaft alignment are essential. Its Sure-Grip® Quick Detachable (QD) mounting design provides secure shaft attachment, simplified installation, and dependable performance in demanding industrial applications.

Technical Specifications:

• Manufacturer: TB Wood's (Regal Rexnord)
• Model / Part Number: SF X 2-1/4 (SF214)
• Product Type: Flexible Shaft Coupling / QD Bushing
• Bushing Series: Sure-Grip® SF Series
• Bushing Type: Quick Detachable (QD)
• Bore Diameter: 2-1/4 in.
• Bore Type: Finished Bore with Standard Keyway
• Keyway Size: 1/2 × 1/4 in.
• Material: Steel / Ductile Iron (application dependent)
• Flange Outside Diameter: 4.625 in.
• Barrel Diameter: 3.125 in.
• Overall Length: 2.00 in.
• Length Less Flange: 1.50 in.
• Flange Thickness: 0.50 in.
• Bolt Circle Diameter: 3.88 in.
• Number of Cap Screws: 3
• Cap Screw Size: 3/8-16 × 2 in.
• Installation Torque: 30 ft-lb
• Torque Capacity: 11,000 in-lb
• Mounting Style: Conventional or Reverse Mounting
• Taper: 3/4 in. per ft.
• Features: Split-through flange and taper, true clamp fit, reusable design, easy installation and removal, precision shaft centering

Common Replacements:

• TB Wood's SF214
• Martin SF2-1/4
• Browning SF2-1/4