TB Woods 7SCHX.875 Cast Iron Sheave Belt Pulley

Description:

The TB Wood's 7SCHX.875 Cast Iron Sheave Belt Pulley is used in Sure-Flex® spacer coupling systems to provide a secure shaft connection while transmitting torque and accommodating shaft misalignment. Commonly installed in pumps, compressors, conveyors, fans, blowers, mixers, and other industrial rotating equipment requiring flexible spacer couplings. Maintenance teams, OEMs, and system integrators use this spacer hub for equipment replacement, coupling maintenance, and reliable power transmission system retrofits.

Applications:

The TB Wood's 7SCHX.875 Cast Iron Sheave Belt Pulley is commonly used in centrifugal pumps, industrial fans, air compressors, conveyor systems, mixers, blowers, generators, and material handling equipment where Sure-Flex® spacer couplings provide vibration damping, shock absorption, and compensation for angular and parallel shaft misalignment.

Technical Specifications:

• Manufacturer: TB Wood's
• Model / Part Number: 7SCHX.875 (7SCH78)
• Product Type: Sure-Flex Spacer Hub
• Series: Sure-Flex® Type SC
• Coupling Size: 7
• Bore Size: 7/8 in
• Material: High-Strength Cast Iron
• Bore Type: Finished Bore with Keyway
• Keyway Size: 3/16 × 3/32 in
• Hub Diameter: 2-13/16 in
• Length Through Bore: 1-15/32 in
• Maximum Speed: 5,250 RPM
• Set Screw Size: 5/16-18 UNC × 3/4 in
• Mounting: Shaft-mounted spacer hub
• Application Environment: Industrial power transmission systems

Common Replacements:

• Dodge 7SCH78 Sure-Flex Spacer Hub
• Lovejoy 7SCH78 S-Flex Spacer Hub
• Martin 7SCH78 SureFlex Spacer Hub