Industrial Center Spool Coupling 6-3/4 OD 4 ID Center Spool Coupling

Description:

The Center Spool Coupling (6-3/4" OD × 4" ID) is a mechanical coupling component designed to connect and transmit torque between rotating shafts while accommodating slight misalignment and reducing vibration in industrial power transmission systems. Commonly installed in pumps, compressors, conveyors, mixers, gearboxes, electric motors, and other rotating equipment requiring reliable shaft-to-shaft power transfer. Maintenance teams and system integrators use this coupling spool for equipment repair, OEM replacement, retrofit projects, and routine drivetrain maintenance.

Applications:

The Center Spool Coupling (6-3/4" OD × 4" ID) is used in industrial power transmission applications where dependable torque transfer and shaft alignment are essential. It serves as the central connecting element in spacer coupling assemblies, allowing easier maintenance of pumps and motors without disturbing connected equipment. Typical applications include manufacturing plants, water and wastewater treatment facilities, mining, chemical processing, oil and gas operations, HVAC systems, and general industrial machinery.

Technical Specifications:

• Product Type: Center Spool Coupling
• Outside Diameter (OD): 6-3/4 in (171.5 mm)
• Inside Diameter (ID): 4 in (101.6 mm)
• Component Type: Spacer/Center Spool for Shaft Coupling
• Function: Torque Transmission Between Rotating Shafts
• Compatible Equipment: Pumps, Motors, Compressors, Gearboxes, Mixers, and Conveyor Drives
• Material: Carbon Steel, Alloy Steel, or Stainless Steel (manufacturer dependent)
• Construction: Precision Machined Industrial Coupling Component
• Mounting Style: Flanged or Hub Connection (application dependent)
• Operating Characteristics: Accommodates minor shaft misalignment while maintaining smooth torque transmission
• Applications: Industrial mechanical power transmission systems
• Features: High strength construction, vibration reduction, reliable shaft alignment, durable wear resistance, easy installation, and long service life.

Common Replacements:

• Lovejoy Spacer Coupling Center Spool
• Rexnord Falk Spacer Coupling Center Section
• TB Wood's Sure-Flex Spacer Coupling Center Assembly