TB Wood's SK218S Jaw Coupling Hub

Description:

The TB Wood's SK218S Jaw Coupling Hub is used in industrial power transmission systems to transmit torque while accommodating shaft misalignment and absorbing shock loads between connected rotating shafts. Commonly installed in pumps, compressors, conveyors, fans, blowers, gearboxes, and other industrial machinery. Maintenance teams, OEMs, and system integrators use this jaw coupling hub for equipment replacement, preventive maintenance, machinery retrofits, and new power transmission installations.

Applications:

The TB Wood's SK218S Jaw Coupling Hub is commonly used in industrial automation environments including conveyor drives, pump and compressor systems, HVAC equipment, material handling systems, mining operations, and manufacturing production lines where reliable torque transmission, vibration damping, and shaft misalignment compensation are essential. Designed for use with compatible TB Wood's elastomeric jaw spiders, it provides maintenance-free, fail-safe operation and is interchangeable with industry-standard L-Jaw coupling designs.

Technical Specifications:

• Manufacturer: TB Wood's (Regal Rexnord)
• Model / Part Number: SK218S
• Product Type: Jaw Coupling Hub
• Coupling Series: L-Jaw
• Hub Material: Sintered Carbon Steel
• Bore Diameter: 2-1/8 in.
• Bore Type: Finished Bore with Keyway
• Keyway Size: 1/2 × 1/4 in.
• Shaft Locking Method: Setscrew
• Setscrew Size: 3/8-16 UNC
• Jaw Profile: Straight
• Construction: Precision-Machined Hub
• Design Features: Maintenance-free, fail-safe operation, shock absorption, vibration damping
• Lubrication Requirement: None
• Interchangeability: Compatible with industry-standard L-Jaw coupling hubs and elastomer spiders
• Application Environment: Industrial power transmission systems

Common Replacements:

• TB Wood's SK218S
• Lovejoy L-Jaw Coupling Hub (2-1/8 in. Bore)
• Martin L-Jaw Coupling Hub (2-1/8 in. Bore)